What Is a Commercial Second Mortgage? How It Works and What Changes
Property Lending
Mortgage Priority · Commercial Security · Lease and Enforcement
A second mortgage over commercial property is not a larger version of the residential one. If the property is tenanted, the lender reads the lease and rent; if your business occupies it, the lender reads the trading business and the property itself. Either way, the first mortgage is usually an all monies commercial facility, and a genuine business-purpose loan may sit outside consumer credit protections. This guide follows the file from usable equity and priority through application, settlement, exit, enforcement, lease risk and regulation.
Quick Answer
A commercial second mortgage is a loan secured by a second ranking mortgage over Australian commercial property, behind an existing first mortgage. What changes is the equity you can use, where you stand if the first lender enforces, and whether a lease or your trading business carries the assessment.
Also called: commercial second mortgages, second mortgage commercial, second ranking mortgage.
Start from where you are
Most people arrive here with a reason already in hand, and the reason decides what matters first. Find the row closest to yours.
| Your situation | What decides it first | Where to read next |
|---|---|---|
| Your bank said no to increasing your facility | Why it said no. A second lender reads the same business, so a servicing or covenant problem does not disappear because the new money sits behind the bank | What changes after a bank decline |
| Your bank is reviewing the facility, has flagged a covenant or will not renew | The deadline in the bank's letter. A second mortgage raised during a review is best put to the bank as part of that conversation, not around it | Reading a covenant breach or non-renewal letter |
| You need working capital or want to move on an opportunity | The timetable. It is set by the valuation, the bank's consent or priority deed and the lease file, not by how fast a lender says yes | What happens after you apply |
| You owe the tax office | Whether a secured loan beats a payment plan. Tax debts on a payment plan keep accruing general interest charge, which compounds daily and, for charges incurred from 1 July 2025, is no longer tax deductible. A loan has its own costs, so compare the two with your accountant | The tax office on interest charges, and how an ATO debt is paid out at settlement |
| You are behind on the first mortgage or have a default notice | The date in the notice. A second mortgage adds a second lender with its own enforcement rights, and arrears on the first mortgage are one of the first things it reads | Refinancing once enforcement has started |
| The property is owned by your super fund, a trust or a company | Who can give the mortgage. A self managed super fund cannot give one at all | Does it matter who owns the property? |
| Your own business occupies the property and there is no arm's-length tenant | The trading business matters alongside the property. Do not build the file as though a third-party lease is carrying the value or the refinance exit | Owner-occupied or tenanted: what changes? |
| You are the tenant, not the owner | When your lease was granted, and whether the landlord's lender consented to it | What happens to the lease on a mortgagee sale |
What is different about a second mortgage on commercial property?
Four things change when a second mortgage sits over commercial property: the assessment splits between tenanted and owner-occupied premises, the first mortgage it ranks behind is usually an all monies business facility rather than a single home loan, the valuation is commercial rather than residential, and a genuine business-purpose loan may sit outside consumer credit protections. The instrument itself is still second ranking security registered behind an existing first mortgage over the same title; the inputs around it are what change. If you want the general second-mortgage mechanics first, start with how a second mortgage works in Australia and come back.
The first mortgage is usually a facility, not a loan. A residential first mortgage is normally one loan over one property. A commercial first mortgage is normally one part of a banking relationship, and the mortgage itself commonly secures all money owing to that lender on any account, present or future. In practice that means the equity you believe sits behind the first mortgage may already be spoken for by an overdraft, an equipment line, or a guarantee you gave for a related entity. The property can be cross-collateralised without anyone ever having used the word. Whether that is your position is a question about the wording of your own security, not about the property.
There is no consumer credit safety net underneath any of it. The National Credit Code applies only to credit given to an individual or a strata corporation wholly or predominantly for personal, household or domestic purposes, or for residential property investment. A loan to a company is outside it altogether, and a loan for a genuine business purpose is outside it as well. That is the corporate regulator's own test, set out in ASIC's regulatory guide on whether a credit licence is needed. There is no statutory responsible lending assessment to fall back on, no hardship framework written into the legislation, and the external dispute resolution scheme reaches only lenders that are members of it. That is not a reason to avoid a second mortgage. It is a reason to read the documents as if nobody is going to read them for you, because nobody is.
It is also worth being precise about what this is not. A caveat is not a mortgage: it records an interest on the title and carries no power of sale of its own, which is a different risk profile for both sides. We have set out how a second mortgage and a caveat loan differ separately. And a large share of what is written about second mortgages online is not describing the Australian mechanism at all, which the last row of the table below deals with directly. The plain definition sits in our glossary entry on second ranking security.
| What the lender is actually looking at | Residential second mortgage | Commercial second mortgage |
|---|---|---|
| What supports repayment and value | A household: income, living costs and the residential property | Tenanted: the lease, rent and tenant profile. Owner-occupied: the trading business plus the property itself |
| What the first mortgage secures | Usually one home loan over one property | Often an all monies facility reaching several accounts and several assets, so the property may already be cross-collateralised |
| Consumer credit protections | ✓ Apply where the purpose is personal or domestic | ✗ Do not apply to a predominantly business purpose loan, or to a loan to a company |
| Who usually writes the second mortgage | Banks, non-banks and private lenders | Mostly non-bank and private lenders, and often on short terms |
| What consent turns on | The first mortgage contract, plus state law and registry practice | The same, plus the lease and any deed of priority between the lenders |
| What the valuation is testing | Residential market evidence and comparable sales | Market value using the evidence appropriate to the asset; on a tenanted property that includes the lease and rent, while an owner-occupied asset is not dependent on a third-party lease |
| Terms that do not describe it | A caveat, which records an interest on the title but carries no power of sale | A caveat, for the same reason; nor second charge or lien, which are United Kingdom and United States terms; nor foreclosure, which is not how an Australian mortgagee enforces |
Does it matter if your business occupies the property or a tenant does?
Yes. If an arm's-length tenant occupies the property, the lender and valuer read the lease, rent, term remaining, tenant quality, outgoings and whether the lease binds the mortgagees. If your own business occupies the premises, there may be no third-party lease to carry the file: the lender reads the trading business's capacity as well as the property, and the valuation still tests what the asset is worth in the market. A related-party lease can sit between those two positions and should be identified rather than presented as though it were an independent tenant.
Does it matter who owns the property?
Yes, because the owner of the property is the one that gives the mortgage, and it is often not the entity that needs the money. Business premises are commonly held in a company, a family trust or a self managed super fund while the trading business sits in a separate company. Where the owner and the borrower differ, the owner is giving security for someone else's debt, the lender reads each entity's own documents, and directors are commonly asked for personal guarantees, which is how a business loan reaches personal assets. The document set a lender works through for each structure is set out in when a trust or company holds the property.
| Who owns it | Can it give the mortgage? | What the lender will read |
|---|---|---|
| You personally | ✓ Yes. If the money is for your company's business, you are giving security for the company's debt and will usually sign a guarantee as well | Your title, the business purpose of the loan and any guarantee |
| A company | ✓ Yes. A company has the power to give a mortgage unless its constitution excludes it | The company's authority to sign, and personal guarantees from its directors in most cases |
| A family trust | Usually, if the trust deed gives the trustee power to borrow and to give security, including for another party's debt | The trust deed and any variations, the trustee's authority, and who the beneficiaries are |
| A self managed super fund | ✗ No. The trustee must not give a charge over a fund asset, and a mortgage is a charge | Not applicable: the property cannot be offered as security, so the equity has to come from another asset |
The super fund row catches business owners who bought their premises through their fund and assume the equity is available like any other. It is not. The tax office's compliance audit checklist for self managed super funds directs the fund's auditor to confirm the trustees have not given a charge over a fund asset, using annual title searches, so a second mortgage would not stay unnoticed either. That is a question for your accountant or super adviser before it is a question for a lender.
Nor can the fund get round it by lending the money instead. The tax office's guidance on SMSF investment restrictions says a fund cannot lend or give financial assistance to a member or a member's relative, including by acting as guarantor for their loan, and a loan to a company or trust you control counts against the fund's in-house asset limit. What the fund can do is lease business real property to your business on arm's length terms.
How much can you actually borrow behind a commercial first mortgage?
A commercial second mortgage usually puts less in your hand than the gap between the property's value and the first mortgage balance, because the lender applies its own combined ceiling to the value and then takes several of its own costs out of the advance before you draw a dollar. Borrowers arrive at this conversation having done the subtraction themselves, and the subtraction is almost never the number the lender reaches, because a short term second mortgage prices those costs into the advance rather than collecting them from you month by month.
Four things sit behind the phrase capitalised costs, and they are worth naming. Interest for the full term, because these facilities commonly capitalise interest rather than take a monthly payment. The line fee on the facility. Both sets of legal costs, yours and the lender's, on a security that needs its own documents rather than an amendment to somebody else's. And the valuation. All four come out of the advance, which is why the money that reaches your account is smaller than the facility you signed for, and why the combined loan to valuation ratio is a poor guide to what you will actually receive.
The market does not agree on the ceiling, and it does not agree on what the ceiling depends on. Published combined ceilings differ from lender to lender, and so do the reasons lenders give for them: some tie the ceiling to asset type, some to the borrower's profile, some to vacancy, some to how specialised the asset is, and some to whether the property is metropolitan or regional. That is why no figure is printed here. A number lifted from one lender's page tells you about that lender's policy on that day, and the disagreement about what the number even depends on is more useful to you than any single value would be. If you want the general framing on borrowing behind a first loan, the general guide to borrowing behind a first mortgage covers it, and the product page for second mortgage loans sets out how we approach one.
And the valuation behind the first mortgage is not available to you. This is the part that surprises people most. The capitalisation approach produces a number your first mortgagee has already advanced against, so it feels like settled fact. It is not transferable. Under the Australian and New Zealand valuation guidance for mortgage and loan security purposes, effective 1 January 2025, a valuation report instructed for one mortgagee "cannot be relied upon until consent is granted by the reporting Valuer, in writing". The same guidance adds that where a borrower instructs the valuer directly, "the Member should disclose this in their valuation report", which is why a borrower ordered report carries less weight than one the lender commissioned. That is the mechanism behind a second mortgage needing its own valuation, and it is also why the timetable is longer than borrowers expect. What the valuer is testing on a commercial asset is set out in what a commercial valuation actually tests.
| What reduces the advance | Why it is there | Who sets it |
|---|---|---|
| The first mortgage balance | It ranks ahead of the second mortgage and is repaid first out of any sale | Your first mortgagee |
| Interest for the full term | Short term facilities commonly capitalise interest rather than collect it monthly | The second mortgage lender |
| The line fee | Charged on the facility and usually capitalised alongside the interest | The second mortgage lender |
| Both sets of legal costs | Yours and the lender's, on a security that needs its own documents | The second mortgage lender, through its solicitor |
| A fresh valuation | A report instructed for another mortgagee cannot be relied on without the valuer's written consent | The valuer, under the valuation standard effective 1 January 2025 |
| The lender's combined ceiling | The lender advances only up to its own combined limit, and lenders disagree on what drives it: asset type, borrower profile, vacancy, specialisation, metropolitan against regional | Each lender, on its own credit policy |
| Any priority amount fixed by deed | A deed of priority can cap what the first mortgage may claim ahead of the second | The two lenders, by agreement |
What does a commercial second mortgage actually cost?
The cost is not the interest rate alone. Add the interest for the agreed term, any capitalised interest, establishment or line fees, the valuation, your legal costs, the lender's legal costs, and any first-mortgagee consent or priority-deed costs; then read the extension, default and exit charges that apply only if the planned exit slips. The two numbers to ask for before you sign are the gross facility and the net amount that reaches you after capitalised deductions. Compare the total dollars required to reach the exit, not one advertised rate. The registry's own charges to register, vary priority and discharge a mortgage are published, and the Victorian schedule is set out in registering a second mortgage in Victoria. What moves the interest rate itself, as opposed to the charges around it, is set out in what drives second mortgage rates.
What happens if the commercial valuation comes in lower than expected?
A lower valuation reduces the equity a second lender can recognise and can shrink the net advance even when the first-mortgage balance has not moved. Capitalised interest, legal costs and other deductions do not fall simply because the valuation did, so the cash shortfall can be larger than the valuation movement suggests. The practical options are to reduce the amount, contribute cash, offer acceptable additional security, restructure the first and second facilities, or stop before further costs are incurred. The mechanics are set out in what to do when a valuation creates a funding shortfall.
From our broking, indicative
We do not publish a loan to valuation band for commercial second mortgages, because lenders disagree on both the figure and what drives it. What we can say is which commercial second mortgage files get declined without much discussion, as at September 2026.
- A lease granted after the first mortgage went on, without the first mortgagee's consent, so the rent the valuation capitalises may not bind the party that matters
- An exit that depends on re-letting a vacant, specialised asset, where the lender cannot see who the next tenant would be
- A first mortgage facility that is all monies across several assets, so the real equity is not sitting where the borrower believes it is sitting
- A valuation obtained for the first mortgagee that the second lender is not permitted to rely on, with no time left in the deal to commission another
Indicative only, based on files we have seen, not a quote and not an offer. Actual terms and outcomes depend on lender policy and your circumstances at the time of application. General information only, not financial advice.
Should you top up with your bank, refinance, or add a second mortgage?
It turns mostly on the first facility. If the bank will lend more on terms you can live with, a top-up is usually cheaper than anything that sits behind it. If the first facility is fixed, cheap or otherwise worth keeping, a second mortgage leaves it untouched. And if the whole relationship no longer fits, refinancing moves all of it at once. On commercial property the fixed rate is the detail that most often decides it, because repaying a fixed facility early commonly triggers break costs.
| The route | Usually fits when | What it involves beyond the interest rate | What commonly stops it |
|---|---|---|---|
| Top up with your current bank | The bank will lend more and its terms still suit you | A fresh credit assessment, often a new valuation, and possibly reset covenants or pricing across the whole facility | The same servicing or covenant view that started the search, or an annual review running at the same time |
| Refinance the whole facility to a new lender | The current terms no longer fit and the property supports one larger loan | A valuation, both sets of legal costs, a discharge of the old mortgage, and break costs if the facility is fixed | Break costs on a fixed facility, an all monies mortgage that also secures other debts, or a lease file the new lender will not accept |
| Add a second mortgage behind the bank | The first facility is worth keeping and the need is short term with a clear exit | Higher pricing on the smaller slice, capitalised costs, a fresh valuation, and notice to the bank, with consent or a deed of priority where needed | A contractual ban on further mortgages outside Queensland, a bank that will not agree a priority deed, or no evidence for the exit |
| A caveat-secured loan | The need is very short and speed matters more than cost | An interest recorded on the title with no registered power of sale, usually at a higher cost again | The weaker security position, which limits both size and term |
A second mortgage is not automatically the expensive choice. Where breaking a fixed facility would cost more than the premium on a smaller loan for a short term, keeping the first facility and borrowing behind it can be the cheaper total. Compare the total cost to the exit, not the headline rate. How the two approaches compare when the first loan is worth keeping is set out in second mortgage against refinancing the first loan.
What happens after you apply for a commercial second mortgage?
After you apply, a commercial second mortgage moves through indicative terms, a fresh valuation, the first mortgagee's notice, consent or priority deed, documents and settlement, and then into a short term that has to end in an exit you planned before you signed. The sequence is the same as for any second mortgage. What differs on commercial property is where the file slows down, and what the lender needs to see about the end of the term before it will start. An approval can arrive quickly; the settlement date is set by the steps in the table below, which is why the two are rarely the same day.
Does applying for a commercial second mortgage affect your credit file?
It can. If a commercial lender requests your personal credit information because you are a director or guarantor, that credit enquiry is recorded on your personal credit file. Sending the same deal to several lenders at once can therefore leave several enquiries behind even though the borrowing is for a business. How lenders read your enquiry history is worth checking before anything is lodged; a broker can usually test lender fit before turning an enquiry into multiple formal applications. The application paperwork that sits behind that enquiry, from the form to the legal advice certificate, is set out in how to apply for a second mortgage.
| Where it slows | Why it slows on commercial property | What to have ready |
|---|---|---|
| The valuation | A second lender usually needs a fresh lender-reliance valuation. On a tenanted property that means the lease, rent roll and outgoings; on owner-occupied premises the valuer still needs the property and market evidence even though there is no arm's-length rent roll | Tenanted: signed leases, mortgagee consents, rent roll and outgoings. Owner-occupied: access to the property plus the business and occupancy information the lender requests |
| The first mortgagee | Notice, any consent the contract requires and any deed of priority run through the bank's own process, which the second lender does not control | A copy of your first mortgage and facility letter, and an early written approach to the bank |
| The lease file, where the property is tenanted | A lease signed without the bank's consent surfaces when the leases are read, and it can change the valuation and the refinance exit | The consent for every current lease, or a request for one before you apply |
| The owning entity | A trust deed, a company authority or a guarantee from a second entity adds documents and signatories | The trust deed, company details and a one-page chart of who owns what and who owes what |
| The exit | A lender will not settle on an exit it cannot see evidence for | The evidence for the exit, not a description of it |
| The costs | Capitalised interest, fees, both sets of legal costs and the valuation usually come out of the advance | The net figure you need in hand, not the facility size |
What documents should you have ready for a commercial second mortgage?
Have the file built before the lender starts spending money on it. A commercial second mortgage usually needs enough information to prove the security, the debt ahead of it, the purpose of the new money, who is giving the mortgage and how the loan gets repaid.
- Property and first-mortgage position: the property address and title details, current first-mortgage payout or balance, the facility limit, and the first mortgage or facility letter.
- Occupancy evidence: signed leases, rent roll, outgoings and mortgagee consents if tenanted; or the trading-business financial information the lender asks for if owner-occupied.
- Entity documents: company details, trust deed and variations where relevant, and a simple chart showing the borrower, property owner and guarantors where they differ.
- The funding request: business purpose, the net amount you actually need, the deadline and what the money pays.
- The exit: evidence for the refinance, sale, asset disposal or business cash event that repays the second mortgage.
How long does a commercial second mortgage take to settle?
There is no reliable standard settlement time. Indicative approval can be much faster than settlement because the critical path is usually the fresh valuation, the first mortgagee's notice or consent and any priority deed, then legal documents and signing. A file can move quickly when those items are already resolved; a first mortgagee process started late can dominate the timetable even after the second lender has approved the deal. When speed matters, ask for two separate dates: when the lender can make a credit decision and what still has to happen before money can settle.
Will your bank find out about the second mortgage?
Yes, and you should want it to. A registered second mortgage appears on the title, and a title search is available to anyone who pays for one. The second lender will usually want your bank told in writing, because notice is what stops the bank's later optional advances ranking ahead of it, and your first mortgage commonly requires you to tell the bank yourself. The practical point is the order things happen in: a letter from a second lender should not be the first your bank hears of it, particularly if your facility is close to a review. Raise it yourself, with the reason for the money and the exit, before that letter arrives.
What if your bank will not consent to a second mortgage?
A refusal changes the risk more than it decides whether a second mortgage can exist, and the answer depends on the state. In New South Wales the registry does not ask for consent, but registering against a contractual ban on further mortgages can be a default under your first mortgage. In Queensland a contractual ban on granting a second mortgage does not operate, so granting one is not by itself a breach. In Victoria the bank has to nominate the electronic title before the second mortgage can register, and it can still treat the second mortgage as a default if its terms prohibit one. The realistic alternatives are the routes compared earlier on this page: a deed of priority that answers the bank's real concern, which is usually what it can lend ahead of you later; a caveat-secured loan, accepting the weaker position; or refinancing the whole facility away from the bank.
What exit will a lender want to see on a commercial second mortgage?
A lender will want evidence of how the second mortgage is repaid at the end of its short term, and on commercial property the credible exits are a refinance into a longer first mortgage facility, a sale of the property or another asset, or a defined business cash event. Lenders commonly prefer a primary exit and a fallback. What counts as an exit strategy applies to any private loan; the table shows what changes when the security is commercial. Where the property is tenanted, the refinance is often assessed on the lease rather than on the business's full financials, which is set out in how a lease-doc commercial loan reads the rent roll.
| The exit | Evidence a lender usually asks for | What commonly breaks it on commercial property |
|---|---|---|
| Refinance into a new first mortgage facility | Current financial statements and lodged tax returns, or a rent roll strong enough for a lease-based assessment, plus leases that bind the lender and a refinance lender whose policy fits the asset | The same unconsented lease or short remaining lease term that weakened the second mortgage weakens the refinance |
| Sale of the property | A realistic appraisal and a sale campaign that can settle inside the term | A tenanted sale depends on the lease surviving, and a vacant specialised asset can take longer to sell than the term allows |
| Sale of another asset | What the asset is, what it is worth and who already holds security over it | An all monies first mortgage may already secure the asset you plan to sell |
| A business cash event | A signed contract, an issued invoice or a confirmed payment date | Dates slip, and the term has no room for it unless the exit was dated conservatively |
What happens when the term ends and the exit is not ready?
Nothing good happens automatically. Where interest is capitalised the balance grows every month, so the equity cushion shrinks while you wait, and a late exit is also a smaller one. An extension is not automatic: it requires the lender's agreement, and the documents may provide for an extension fee, a revised interest rate or other conditions. If the facility runs overdue, default interest may apply before enforcement begins. The time to ask for an extension is well before maturity, with updated evidence showing exactly when the exit will occur. If your first mortgage is also approaching a review, expiry or arrears position, treat the two facilities as one project because each lender will be watching the other's security position.
After settlement, does a new tenant need both lenders to agree?
In practice, yes. Once there are two mortgages on the title, the consent problem set out in the lease section applies to each of them. In New South Wales, section 53(4) of the Real Property Act 1900 makes a lease not binding on any mortgagee that has not consented to it before it is registered, so a lease that is to bind both lenders needs both consents, and second mortgage documents commonly carry their own leasing covenant as well. Before you sign a tenant, a renewal or a variation during the term, ask both lenders in writing.
Can your bank lend more and still rank ahead of your second mortgage?
Usually yes: a further advance by your first mortgagee can rank ahead of your second mortgage, and the answer turns mainly on whether the bank had notice of the second mortgage and whether it was obliged to make the advance anyway. Borrowers tend to assume that once a second mortgage is registered, the first mortgage is frozen at today's balance. It is not. The mortgage itself commonly secures all money owing on any account, so the balance ranking ahead of you can move without a new mortgage being registered at all, which is why what an all monies clause actually reaches is the first document to read. Four separate mechanisms decide whether a later advance by your bank sits ahead of your second mortgagee or behind it, and they run in this order.
One. Notice. The rule from Hopkinson v Rolt, an English decision of 1861 that Australian courts apply, is that a first mortgagee with notice of a second mortgage cannot claim priority for new optional advances made after that notice. Courts here have required actual notice, and registering the second mortgage on the title is not enough on its own. Without notice, a further advance simply joins the first mortgage and keeps top priority. That is why a second mortgagee's first move is to make sure the first mortgagee has been told, in a form it cannot later say it did not receive, and why the date of that notice matters more than the date of your loan. Some states have written these rules into statute. In Queensland, the Property Law Act 2023 says a further advance ranks ahead of a later mortgage only where the later mortgagee agrees, where the first mortgagee had no actual notice of the later mortgage when it made the advance, or where the first mortgage already obliged it to make the advance, and it adds that registering the later mortgage is not, by itself, actual notice. Registration on the title is not a substitute for telling the bank in writing.
Two. Obligatory advances. Where the first mortgage contract requires the bank to make future advances, those advances can keep priority even after notice, because the bank had no choice. Queensland's statute says so expressly. Outside Queensland the general law has been argued both ways on this limb, which is one more reason the deed of priority in mechanism four exists. Staged construction drawdowns are the textbook case: the facility commits the lender to fund each stage on certification, so notice of a second mortgage does not release it from that promise and does not demote the money it is obliged to pay. If that is your situation, the sequencing is set out in taking a second mortgage behind a construction facility, and we will not restate it here.
Three. Salvage and value-enhancing expenditure. Money the first mortgagee spends to complete or protect the property can take priority even after notice, on the reasoning in Matzner v Clyde Securities Ltd [1975] 2 NSWLR 293, a New South Wales Supreme Court decision. The logic is that the second mortgagee benefits from a completed or preserved asset, so it should not be able to take that benefit and push the cost behind it. In practice this is the limb that bites on half finished works and on insurance, rates and repair spending during a default.
Four. The deed of priority. The contractual override is an agreement between the two lenders that fixes a priority amount: a ceiling on what the first mortgage may claim ahead of the second, whatever it later advances. It is the instrument that makes the first three mechanisms predictable, and it has a cost that borrowers should price in before they sign. Once the first mortgage's priority is capped, increasing that first facility later usually means going back to the second mortgagee for a variation, and the second mortgagee is under no obligation to agree. The consent mechanics themselves, and what a bank actually asks for, are covered in whether your bank will consent and what a deed of priority does.
Registration and contractual consent are two different questions, and the answers differ by state. On the registration question in New South Wales, the Registrar General publishes the position plainly: the concept of control of the right to deal was abolished on 11 October 2021 along with certificates of title, and "Second (or subsequent mortgages) no longer require CoRD holder consent". The same source immediately adds the other half, which is the half that catches people: practitioners should "check the terms of the first registered mortgage to ensure that their consent is not required. This is a contractual matter between the mortgagee and the borrower." It also notes that consent may still be required by legislation in particular cases. Queensland goes further. Its titles registry states that under section 125 of the Property Law Act 2023 a subsequent mortgage may be created without the prior mortgagee's consent, despite any provision in the prior mortgage to the contrary, so in Queensland granting a second mortgage is not, by itself, a breach of the first. Victoria works differently again. There the first mortgagee usually holds control of the electronic certificate of title, so it has to take part in the settlement workspace and nominate the title before a second mortgage can register. That nomination is a registration step, not consent: the contract question still stands, and banks commonly use the moment to ask for a deed of priority. How title control works on a Victorian second mortgage covers the sequence. Outside Queensland the practical consequence is different: registering without consent can still be a default under your first mortgage, even in a state whose registry does not ask for it, and a default is a far more expensive outcome than a refused lodgement. Your solicitor should confirm which position applies to your property.
An owner takes a second mortgage over a tenanted commercial property, then a few months later asks the first mortgagee to increase the original facility to fund a fitout for an incoming tenant. Whether that increase ranks ahead of the second mortgage turns on the four mechanisms above rather than on anybody's sense of fairness.
If the first mortgagee was given notice of the second mortgage, a purely optional increase does not automatically keep top priority. If the facility obliged the bank to fund that work, it very likely does. And if part of the money is spent completing or protecting the property, that part may keep priority on the salvage limb regardless. This is precisely why the second mortgagee wants a deed of priority in place at the start rather than a conversation about it afterwards, and why an owner who expects to increase the first facility should say so before the second mortgage is documented, not after.
What protects your ranking
- Written notice to the first mortgagee, recorded and dated
- A deed of priority capping the first mortgage's priority amount
- A first mortgage that is a term loan rather than a revolving facility
- Consent obtained before the second mortgage is lodged, not after
- A clear picture of every account the first mortgage already secures
What quietly erodes it
- An all monies clause reaching accounts nobody listed at the start
- An obligatory drawdown schedule the first mortgagee must keep funding
- Salvage or completion spending during a default
- Registering without consent where the contract requires it, outside Queensland
- Assuming the registry position answers the contract question
What if your bank also holds a general security agreement over the business?
If your bank also holds a general security agreement over the business, two priority regimes apply at once, because that agreement is governed by different rules from the mortgage over the property. Under the Personal Property Securities Act, the strict rule against tacking is largely displaced for personal property, and priority between security interests is worked out under that statute's own rules. Real property is not covered by it: land still relies on land law and on state title rules, which is where everything above sits. This matters because a commercial borrower commonly has both at once, a general security agreement over the business and a registered mortgage over the property. The two can rank differently, and an intercreditor position that looks settled on one may be unsettled on the other.
Where does a second mortgagee stand if the borrower defaults?
A second mortgagee stands behind the first mortgagee on the secured property, but it is not necessarily confined to that property. The second half of that sentence is the part almost nobody explains to a borrower, and it can change the outcome of a bad month substantially, because it depends on a decision your bank made about your other assets long before this loan existed.
What if the first mortgage is also in arrears?
A first-mortgage default puts the whole second-mortgage structure at risk even if the second loan itself is still being paid. The first mortgagee ranks ahead of the second and may enforce its own security under its documents and the applicable state law; if it sells, the second mortgagee receives only what remains after the first mortgage and enforcement costs are dealt with. The second-loan documents may also treat a default under the first mortgage as a default under the second facility. If the bank facility is already in arrears, under review or close to expiry, disclose that before taking the second mortgage rather than treating it as a separate problem.
Can a shortfall reach assets outside the commercial property?
Yes, depending on what else was signed. If the property sale does not clear the second-mortgage debt, the unpaid balance does not disappear. A personal guarantee can make a guarantor liable under the guarantee, and a general security agreement can give a secured creditor separate rights over business personal property covered by that security. That does not mean every other asset is automatically available or that land and business assets share one priority rule: each guarantee and security has its own scope, and personal-property priority is dealt with separately from the mortgage over land. The interaction with a bank GSA is explained in the priority section above.
What is a mortgagee's power of sale?
A power of sale is the right a mortgagee has, once the borrower is in default and the statutory notice requirements have been met, to sell the secured property and apply the proceeds to the debt. It is not a court order and it is not a transfer of ownership to the lender. The mortgagee sells as mortgagee, the proceeds are applied in a set order, and any surplus belongs to the borrower or to whoever ranks next. A second mortgagee has one too, but exercising it is harder: it takes the property subject to the first mortgage and cannot deliver clear title to a buyer without paying that first mortgage out. The generic question of whether a second mortgagee can sell is answered in full in what a second mortgagee can and cannot do. Everything below is the part specific to commercial security.
What is marshalling, and when can a second mortgagee use it?
Marshalling is an equitable doctrine that can let an unpaid second mortgagee reach another of your properties, where the same first mortgagee held security over more than one of them and chose to sell the one the second mortgagee was on. The doctrine exists because the first mortgagee had a choice about which security to realise, and its choice should not arbitrarily wipe out somebody who ranked behind it on only one of them. It is a remedy against the fund, not a punishment of the bank, and a court has discretion about whether to allow it.
The common debtor requirement is not a technicality, it is the gate. Marshalling is only available where both securities secure the debt of the same debtor. If the other property secures a related entity's borrowing, or a partner's, or sits behind a facility in a different name, the doctrine does not reach it however unfair the outcome feels. That single requirement decides most real cases, and it is why an accurate list of which entity owns what and which entity owes what is worth building before you need it.
Here is the part that makes this your problem rather than your lender's. Whether marshalling is available at all turns on how many of your properties your bank took security over, which is a consequence of how the first mortgagee structured its security years ago, not of anything in your second mortgage. A borrower whose bank took one property has no marshalling argument. A borrower whose bank took three has one, subject to the common debtor gate. You cannot change that after a default, but you can know it now, and it is one of the things a lender reads when it works out what is actually behind a business second mortgage. Where a bank already holds two of your properties, the interaction is set out in what happens when a second mortgage sits across two properties.
One caution on sources. Marshalling is a doctrine shared with England, and a search on it returns a great deal of United Kingdom chambers material that reads as though it settles the Australian position. It does not. The Australian authorities are their own line of cases, and the safe course on anything at this end of the page is your own solicitor rather than a summary written for another jurisdiction. If you want the wider context on how property security is structured across a portfolio, our property lending hub is the starting point.
| The situation | What happens to the sale proceeds | Where that leaves the second mortgagee |
|---|---|---|
| Sale covers both debts | Enforcement costs first, then the first mortgage, then the second | Repaid in order, with any surplus returning to the borrower |
| Sale covers only the first mortgage | The first mortgage is repaid and nothing is left to distribute | Falls back on the borrower personally and on any other security or guarantee |
| The bank holds other properties of yours | The first mortgagee chose which of its securities to realise | May ask a court to allow marshalling against the security it did not sell |
| The other property secures a different debtor | Unchanged, the proceeds are applied to that other debt | The common debtor requirement fails and marshalling is not available |
| The second mortgagee sells instead | The first mortgage is not extinguished by a sale further down the order | Sells subject to the first mortgage, or pays it out to deliver clear title |
| A deed of priority is in place | The first mortgage claims only up to its capped priority amount | Relies on the cap rather than on the mortgage balance of the day |
What happens to your tenant and your lease if the first mortgagee enforces?
Whether your tenant's lease survives a mortgagee sale depends on when it was granted: a lease granted before the mortgage, or after it with the mortgagee's written consent, generally binds the mortgagee, while a lease granted afterwards without consent does not. There is no general rule that a tenant is safe because the tenant has done nothing wrong, and there is no general rule that a buyer at a mortgagee sale inherits your rent roll. There are three positions, and which one you are in was decided on the day the lease was signed.
| When the lease was granted | Does it bind the mortgagee? | What that means on a sale |
|---|---|---|
| Before the mortgage went on the title | ✓ Generally yes, where the lease is registered or is a short lease your state's land legislation protects without registration | The buyer takes the property with the tenant and the lease in place |
| After the mortgage, with the mortgagee's written consent | ✓ Yes, on the terms consented to | The lease carries through the sale in the form the mortgagee approved |
| After the mortgage, without consent | ✗ No, it does not bind the mortgagee | The mortgagee may sell with vacant possession, and the tenant's position then depends on the buyer |
In New South Wales the third row is not commentary, it is statute. Section 53(4) of the Real Property Act 1900, in the version current for 15 August 2025, reads: "A lease of land which is subject to a mortgage, charge or covenant charge is not valid or binding on the mortgagee, chargee or covenant chargee unless the mortgagee, chargee or covenant chargee has consented to the lease before it is registered." The first row carries a qualifier for a reason: on a registered title an unregistered long lease can lose out to a registered mortgage, so whether an older lease was registered matters as much as when it was signed. Other states answer the same questions through their own land legislation and the answers are not identical, so the lease question on your property is one to put to your solicitor with the lease and the mortgage in front of them.
If you are the tenant rather than the owner, the same three rows describe your position from the other side: a lease that binds the selling mortgagee carries through the sale, and one that does not may not. That is a question for your own solicitor, with your lease and a current search of the landlord's title in front of them.
Why a strong new tenant can raise the valuation and weaken the security at the same time. Put three ordinary facts next to each other. The lease is what the valuation capitalises, so the lease is where the value comes from. Standard commercial mortgage terms commonly prohibit the owner from granting a lease without the mortgagee's consent. And a lease granted after the mortgage without that consent does not bind the mortgagee. Read together, those three facts describe a property where the lease creates the income the value rests on while being unenforceable against the mortgagee that matters, and where a second mortgage lender is being asked to advance against that number. A borrower who signs a strong new tenant without asking the bank has usually improved the valuation and weakened the security in the same afternoon.
What is a mortgagee, and which one has to consent?
A mortgagee is the party holding the mortgage, which is to say the lender whose security is registered against the title. On a property with two mortgages there are two mortgagees, and they do not have the same rights. The first mortgagee is the one whose consent the standard lease clause is talking about, the one whose power of sale will usually be exercised first, and the one a lease must bind if the rent is to survive an enforcement. The second mortgagee's consent does not cure a lease the first mortgagee never approved. It is worth being blunt about the consequence: getting the second lender comfortable with a lease does nothing for you if the first lender was never asked.
What should you check in your first mortgage before signing a new tenant?
Find the leasing covenant in your first mortgage and read whether consent is required, whether it is required for variations and renewals as well as new leases, and whether consent is stated to be at the mortgagee's discretion or not to be unreasonably withheld. Check whether the mortgage requires the lease to be on particular terms, a minimum rent or a maximum incentive. Check whether an assignment by the tenant needs consent too. If the premises are a retail shop, your state's retail leases legislation also governs parts of the lease, so have your solicitor read it against that as well. Then ask for the consent in writing and keep it with the lease, because the document that will be looked for years later is the consent, not the correspondence about it. How a lender reads a commercial lease is set out in what a lender looks for when it reads your lease, and where the property is leasehold rather than freehold the analysis shifts again, which we cover in freehold against leasehold commercial property. The product page for commercial property loans sets out the first mortgage side of the same question.
An owner of a tenanted commercial property signs a strong new tenant on a long lease at a good rent, some years after the bank's mortgage went on, and does not ask the bank. The valuation improves on the new rent, because that is what a capitalisation approach does. A second mortgage is then written against the improved number. Every step of that looks like good management, and the exposure it creates is invisible until the day it matters.
If the first mortgagee later enforces, the lease granted after the mortgage without its consent does not bind it, and it may sell with vacant possession. The income the second mortgage was advanced against is then the income that does not have to survive. The fix is procedural and cheap at the time and expensive afterwards: ask for consent in writing before the lease is signed, and keep it. Whether the property is being sold as a going concern can also turn on that lease still being on foot, which is the subject of the next section.
Who gets paid first from a mortgagee sale, and who pays the GST?
On a mortgagee sale the proceeds pay the costs of enforcement first, then the first mortgage, then the second mortgage, and any goods and services tax the selling mortgagee owes on the sale reduces the pool before the borrower sees anything. That ordering is the whole answer, and the only part borrowers routinely get wrong is the last clause.
- The costs of enforcement, including the selling mortgagee's legal and agency costs.
- The first mortgage, up to its full balance, or up to its capped priority amount where a deed of priority fixes one.
- The second mortgage, out of whatever remains.
- Any later ranking security, in order.
- The borrower, if there is a surplus, which on a distressed sale there very often is not.
The tax sits inside step one rather than after step five. Under the tax office's guidance on mortgagees in possession, a mortgagee in possession is liable for GST on the sale if it sells the property to pay off the debt and the sale would have been a taxable sale had the mortgagor sold it. There are two exits: the borrower gives the mortgagee a written notice stating why the sale would not have been taxable, supported by evidence, or, failing that, the mortgagee forms a reasonable belief on the information available to it that the sale is not taxable. The consequence for the borrower is easy to miss: the written notice is the borrower's document, not the lender's, and a borrower who has disengaged from the process is a borrower who does not provide it. A tax amount that did not need to be paid reduces the pool before anything reaches the second mortgage or the owner. Where a property carries two mortgages, the tax office also notes that not every mortgagee becomes a mortgagee in possession, and that the sale contract should state which one is exercising the power of sale. If you want the plain definition first, our glossary entry on goods and services tax covers it, and the general enforcement sequence is set out in the second mortgage guide.
The GST question also ties back to the lease. Whether the sale is taxable can turn on the property being tenanted and sold as a going concern, which the tax office lists among the things to consider. A lease that does not bind the enforcing mortgagee is a lease that may not be there on the day the sale is characterised, and the characterisation is what decides whether the tax comes out of the pool.
What regulates a commercial second mortgage, and what does not?
A commercial second mortgage is governed mainly by its contract, land law and general commercial law. If the second mortgagee is an authorised deposit-taking institution, APRA's APS 112 also sets prudential conditions for treating a registered second mortgage as a standard property loan; those conditions are not a published maximum LVR that a private lender must offer a borrower. A genuine business-purpose loan, or a loan to a company, may also sit outside the National Credit Code.
APS 112 does address a second mortgage over the same property where the lender is an ADI. APRA's prudential standard APS 112 says an ADI taking a registered second mortgage must obtain the first mortgagee's written consent, confirm the maximum amount secured by the first mortgage for LVR purposes, ensure later increases in the first mortgage cannot outrank it, and be able to exercise its power of sale independently. For regulatory LVR, APS 112 adds the claims secured by the first and second mortgages over the same property. That is a prudential classification and capital rule for an ADI, not a promise that a bank or private lender will advance to a particular combined LVR.
APG 112 is a different document and answers a different example. APRA's practice guide APG 112 includes an example where a predominant first mortgage over one property is supported by a second mortgage over a different property. That example should not be read as the rule for a second mortgage ranking behind another mortgage over the same commercial title. The distinction matters because quoting the APG example as though it were the same-property rule produces the wrong answer.
Most private-credit and non-bank commercial second-mortgage lenders are not ADIs. APS 112 therefore does not set their credit policy, their maximum combined LVR or their pricing. For those lenders, the practical controls are the mortgage and loan documents, the state land-title and property-law rules, any deed of priority, and the general prohibitions on misleading or deceptive and unconscionable conduct. A credit licence is not a shortcut to deciding whether consumer protections apply: the entity receiving the credit and the real purpose of the loan still matter. How private lenders operate in this space is set out in our guide to private mortgage lenders in Australia, and the private lending page covers how we place these. The classes of lender that actually write second-ranking loans, and what supervises each, are compared in who lends second mortgages in Australia.
What decides the consumer-credit boundary. The business-purpose declaration has to be genuine rather than a formality. ASIC's test asks who receives the credit and what it is predominantly for; more than half of the credit must be intended for the relevant purpose. A mixed business-and-personal facility therefore needs an honest purpose analysis rather than a business label added at the end. The underlying concept of what a lender takes as security is the common thread through all of it.
What to check when no licence tells you
- Whether the lender is a real trading entity, checked on the public business register
- Whether it belongs to an external dispute resolution scheme, and which one
- Who the funder behind the facility actually is, and on what terms
- Whether the term sheet and the loan documents say the same thing
- Whether the exit it is underwriting is one you can actually deliver
What should slow you down
- A request for a substantial fee before anything has been assessed
- A business purpose declaration handed over with the purpose left vague
- Costs that appear in the documents but never appeared in the offer
- A default rate or a term that assumes an exit you have not agreed
- Reluctance to put the consent and priority arrangements in writing
A commercial second mortgage is the same security instrument as the residential one sitting in a different credit and property context. On a tenanted asset, the lease and tenant profile matter; on owner-occupied premises, the trading business matters alongside the asset. The first mortgage it ranks behind is commonly an all monies facility rather than a single loan, and a genuine business-purpose facility may sit outside consumer credit protections. Your ranking is not fixed by registration alone: notice, obligatory advances, preservation spending and a deed of priority can each change it. The exit you evidence before you sign decides what the end of the term looks like, and any lease that supports the value should also be checked for whether it binds the mortgagees who may later enforce.
Key takeaway: on commercial security the questions that decide the outcome are priority, consent and the lease, and all three are answered by documents you already signed rather than by the loan you are about to sign.Frequently Asked Questions
Banks do not publish one standard lending figure for commercial property, and a second mortgage sits outside whatever limits they do set. What a first mortgagee will advance is set by its own credit policy on that asset, and what a second mortgage lender will advance behind it is set by the equity left after the first mortgage, the capitalised cost of the facility and a fresh valuation. Published lender limits do not agree with each other, and they do not agree on what the limit depends on either. Asset type moves it, and so does a valuation read on an industrial asset.
A second mortgagee generally can enforce and sell, but it takes the property subject to the first mortgage and cannot deliver clear title without paying that mortgage out. The generic version of this question is answered in full in our guide to second mortgages.
There is no single best loan for commercial property, because the real question is which structure fits the security and the purpose. A first mortgage facility, a second mortgage behind it, a caveat loan and a mezzanine arrangement solve different problems and sit at different points in the priority order. The useful first step is to work out what your existing first mortgage already allows and what it already secures, because that narrows the field before anything else does. The main routes for an owner who already has a first mortgage are compared in topping up, refinancing or adding a second mortgage. From there a broker can route you rather than rank products at you.
A second mortgagee is the lender holding the second ranking mortgage over your property, behind the first mortgagee. Its security is the same property, but its claim on the sale proceeds comes after the first mortgagee has been repaid in full and after the costs of enforcement. That ranking is what it is pricing and what it is assessing, which is why it reads the first mortgage contract as closely as it reads the property.
The downside of a second mortgage is that you take on a second set of repayments and a second enforcement right over an asset you have already pledged, while standing behind someone else in the queue. If the property sells for less than expected, the first mortgage is repaid first and the second mortgage can be left partly or wholly unpaid, and that shortfall does not disappear, it stays a debt you owe. On commercial property there is a further edge: a business purpose loan carries none of the consumer credit protections, so the terms you sign are very largely the terms you get.
Whether a commercial lease survives a mortgagee sale depends on when the lease was granted and whether the mortgagee consented. A lease granted before the mortgage generally binds the mortgagee, provided it was registered or is a short lease the land legislation protects without registration, and so does a lease granted afterwards with the mortgagee's written consent. A lease granted after the mortgage without consent does not bind the mortgagee, which may sell with vacant possession, and in New South Wales that position is set out in section 53(4) of the Real Property Act 1900. Your own state has its own land legislation on the point, so read the lease question with your solicitor.
Usually yes. A first mortgagee that makes a further advance without notice of your second mortgage keeps its priority for that advance, and even after notice it can keep priority where the advance was obligatory under the first mortgage contract, or where the money was spent completing or protecting the property. Registering your second mortgage is not a substitute for telling the bank in writing, and in Queensland the Property Law Act 2023 says registration is not, by itself, actual notice. The mechanism that changes the answer is a deed of priority, which caps the amount the first mortgage may claim ahead of you.
Regulation depends on who the lender is and what the loan is for. If the second mortgagee is an ADI, APRA's APS 112 sets prudential conditions for a registered second mortgage and calculates regulatory LVR using the claims under both the first and second mortgages over the same property. Most private-credit and non-bank second-mortgage lenders are not ADIs, so APS 112 does not set their credit policy. A genuine business-purpose loan may also sit outside the National Credit Code; general prohibitions on misleading and unconscionable conduct still apply. A lender writing only genuine business-purpose loans can operate lawfully without a credit licence, so finding no licence is not proof of a problem, and finding one does not carry consumer protections across to a business-purpose loan.
In principle yes, if there is equity in the commercial property behind the existing first mortgage and the purpose is genuinely a business one. The practical gate is not the equity, it is whether the entity that owns the property can give the mortgage at all, whether your first mortgage contract permits a second mortgage, outside Queensland where the law overrides a contractual ban, and whether the first mortgagee's security already stretches across your other assets, because that changes how much equity is actually free. Where the property is tenanted, the lease and any consent to it will be read before the advance is agreed.
Usually yes, and it is not the lender being difficult. A valuation instructed for one mortgagee cannot be relied upon by another until the reporting valuer consents in writing, so the report your first mortgagee commissioned is not simply available to a second lender. Where a borrower instructs the valuer directly, the valuer is expected to disclose that in the report, which is why a borrower ordered valuation carries less weight with a lender. If the number comes back under what the deal assumed, that is a valuation shortfall on a commercial deal rather than a second mortgage problem.
Almost certainly. A registered second mortgage appears on the title, which anyone can search, and the second lender will usually notify your bank in writing because that notice protects its ranking against the bank's later advances. Your first mortgage commonly requires you to tell the bank as well. The better course is to raise it with your bank yourself, with the purpose and the exit, before the second lender's letter arrives.
No. The trustee of a self managed super fund must not give a charge over a fund asset, and a mortgage is a charge, so business premises held in your fund cannot secure a second mortgage for your business. The fund's auditor is expected to check the title every year, so it would not go unnoticed either. If the equity you want sits in the fund, talk to your accountant or super adviser before you talk to a lender.
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