How Australian lenders calculate DSCR on commercial property and business loans, the assessment rate they use, and what to do when the ratio falls short.
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DSCR Loan · Debt Service Cover · Commercial Property
Why can a commercial property loan with a comfortable deposit still be declined on one number the borrower never sees? That number is usually DSCR. Here is how Australian lenders build it, the rate they test it at, and what to change in the deal when it falls short.
Quick Answer
DSCR, the debt service coverage ratio, divides the income a lender counts by the repayments it must cover, and Australian lenders use it alongside the loan to value ratio to decide how much a business or commercial property can borrow. The ratio is tested at an assessment rate above the actual rate, so the same commercial property loan can pass at one lender and fail at another.
Also called: debt service coverage ratio, debt service cover ratio, debt service ratio. All three mean the same lending measure, although "debt service ratio" is sometimes used loosely for a personal debt to income style test, which this post does not mean.
What is DSCR in lending?
DSCR in lending is a test of whether the income behind a loan covers the repayments on it, with room to spare. It is income counted divided by repayments due, expressed as a ratio: the higher the number, the more cushion the lender sees between what the property or business earns and what the debt costs each year.
The short definition, the typical targets and the common questions about it sit on our DSCR glossary entry. This insight goes one step further: how a credit team actually builds the number on an Australian file, why it moves between lenders, and what you can change when it comes up short. For the wider picture of how a commercial deal is assessed, start with how commercial property loans work.
How is DSCR calculated on an Australian loan?
DSCR on an Australian loan is calculated by taking the annual income the lender is prepared to count and dividing it by the annual repayments on all the debt it must service, with those repayments worked out at the lender's assessment rate rather than the rate you will actually pay. Both halves of that sum are the lender's version, not yours, and that is where most surprises come from.
When I open a commercial file, what lenders actually look at first is not the headline rent on the lease. It is the net figure left after the lender has shaded the income and loaded up the repayments. The illustrative table below uses round invented figures to show how far the ratio moves when only one input changes.
| Scenario | Income counted | Annual repayments at the assessment rate | DSCR | Result |
|---|---|---|---|---|
| Base case | $150,000 net rent | $100,000 | 1.50 | The reference point for the rows below |
| Vacancy allowance applied | $135,000 after the lender shades the rent | $100,000 | 1.35 | Weaker, with no change to the property |
| Higher assessment rate | $150,000 | $115,000 | 1.30 | Weaker, the lender's buffer alone moves it |
| Interest-only period | $150,000 | $80,000 | 1.88 | Stronger, if the lender tests on interest-only repayments |
| Larger deposit | $150,000 | $85,000 on a smaller loan | 1.76 | Stronger, the most reliable fix |
The figures are illustrative only and are not a lender minimum or a quote. Each lender sets its own minimum ratio, and it typically varies by property type, lease quality and loan size. To see how a loan amount changes the repayment side, try the commercial property loan calculator.
Which income does a lender count in DSCR?
A lender counts the income it believes will keep arriving, which is usually less than the income on paper. On an investment property that is net rent after outgoings the owner pays; on an owner-occupied premises or a business loan it is usually the business's earnings before interest, tax, depreciation and amortisation, drawn from the financial statements.
- Net rent, shaded. Many lenders apply a vacancy or outgoings allowance even to a fully leased building, and the size of that shading varies by lender and by how long the lease has left to run.
- Business earnings, adjusted. Non-cash and one-off items can be added back, but only where the accountant can evidence them. How that schedule is built is covered in add-backs and serviceability.
- Lease strength. A signed lease to an established tenant counts for more than a short or informal one. Where the lease itself carries the application, see the lease doc commercial property loan.
The lender's read of trading income sits inside a broader cash flow assessment, so a strong property can still be held back by a thin business set of accounts, and the reverse.
What interest rate is DSCR tested at?
DSCR is tested at an assessment rate set above your actual rate, and how far above varies by lender. The credit team adds a margin, or applies a floor, so the loan still services if rates rise during the term, and that margin is set by each lender's own policy rather than a single industry figure.
The repayment type matters as much as the rate. Some lenders test principal and interest repayments even when you have asked for an interest-only period, because that is what the loan reverts to; others test the interest-only repayment for the period it runs. The detail of that trade-off is in our interest-only commercial property loan guide.
This is why the same deal can pass at one lender and fail at another. A different assessment rate, a different vacancy allowance and a different repayment basis can each move the ratio by a few tenths, and together they decide the outcome.
How do DSCR and ICR differ, and which one decides?
DSCR and ICR differ in what they cover: the interest cover ratio tests income against interest only, while DSCR tests income against interest and principal together. ICR is the softer test, so a deal that passes ICR can still fail DSCR once principal repayments are added.
Which one decides depends on the product and the lender. Interest-only investment loans and some development facilities lean on ICR; amortising commercial and business loans more often lean on DSCR, and some lenders run both and take the tighter result. How interest cover is tested on a commercial property is answered in the FAQ section of how commercial property loans work.
How does DSCR work with the loan to value ratio?
DSCR works alongside the loan to value ratio as a second, separate ceiling on the loan, and the lower of the LVR and DSCR limits sets the loan. LVR caps the loan against what the property is worth; DSCR caps it against what the income can carry.
On most commercial files, the LVR test is the one borrowers prepare for, with a deposit saved and a valuation ordered. The DSCR test is the one that quietly trims the approved amount. A property can sit well inside the lender's LVR and still be cut back because the net rent, at the assessment rate, does not cover a loan that large. Why that happens is unpacked in our guide on what lenders test in a commercial property valuation.
Are there DSCR loans in Australia like in the United States?
Australia has no direct equivalent of the American DSCR investor loan, where a residential investor is approved on the property's rent with little or no personal income evidence. Many search results for "DSCR loan" describe that American product, and the terms rarely carry across.
What exists here is closer in spirit and narrower in scope: commercial property loans assessed mainly on the lease, and rental income only, from some non-bank lenders, usually with a lower maximum LVR and a higher rate than a full doc loan. A residential investor in Australia still typically faces full personal serviceability, because residential investment lending sits under consumer credit rules.
The lending backdrop matters too. The Reserve Bank's Financial Stability Review, March 2026, describes banks' business and commercial real estate lending standards as having eased slightly, in a way it views as incremental and prudent, and notes reports of non-bank lenders easing standards modestly for developers. That is a market read, not a change to how DSCR is calculated, and policy still varies lender by lender.
What can you do if your DSCR is below the lender's minimum?
If your DSCR is below the lender's minimum, you either raise the income the lender counts or lower the repayments it tests, and most fixes do the second. The cards below sort the usual levers into those that lift DSCR and those that drag it.
Lifts DSCR
- A smaller loan or a larger deposit
- A longer loan term, which spreads principal
- An interest-only period, where the lender tests it
- A longer or stronger lease in place before settlement
- Evidenced add-backs in the business accounts
Drags DSCR
- A higher assessment rate or rate floor
- Vacancy and outgoings shading on the rent
- Other business debts and equipment finance repayments
- A short remaining lease term or a vacant tenancy
- Owner drawings the accounts cannot separate
If those levers are not enough, the answer can be a different lender type rather than a different deal. Extra security, such as a second property, can support the loan amount without changing the ratio itself. Where a bank has already said no, see how a non-bank lender reads a bank-declined commercial file, and for business borrowing more broadly, our business loans page. If you would like a view on where your own numbers land, check eligibility before you sign a contract. More commercial lending reads sit in the Business Owners Hub.
DSCR is the lender's version of your income divided by the lender's version of your repayments. It sits beside the loan to value ratio, and whichever limit is lower sets the loan. Lenders shade the income and test the repayments at an assessment rate above the real one, so the ratio moves between lenders even when the property does not. Australia has no direct copy of the American DSCR investor loan, but lease-based and rental-income-only commercial loans exist with some non-bank lenders.
Key takeaway: run the DSCR on the lender's assumptions before you sign, because a strong deposit will not rescue a ratio that falls short.Frequently Asked Questions
The downside to a DSCR loan is that the lender sizes it on income it has already shaded and repayments it has already loaded, so a vacancy, a short lease or a higher assessment rate can cut the loan even when the deposit is strong. Lease-based and rental-income-only loans from non-bank lenders also typically cost more than a full doc loan, with a lower maximum LVR. The trade-offs on a lease-assessed loan are set out in the lease doc commercial property loan insight.
In Australia, the borrowers who qualify for a DSCR-assessed loan are usually business owners and investors buying or refinancing commercial property with a lease in place, or businesses whose earnings cover the repayments with room to spare. Lenders look at the strength and length of the lease, the tenant, the property type and the borrower's experience. Residential investors are usually assessed on full personal serviceability instead.
Getting a DSCR-assessed loan is not difficult when the income clearly covers the repayments at the lender's assessment rate, and it becomes difficult when the ratio sits close to the lender's minimum. The hard part is that each lender shades income and loads repayments differently, so the result is not obvious from the lease alone. Running the numbers on more than one lender's assumptions, for example in the commercial property loan calculator, shows where the file is likely to land.
Australian banks test DSCR on most commercial and business loans, but they rarely sell a stand-alone "DSCR loan" in the American sense. Loans assessed mainly on the lease or on rental income tend to come from non-bank lenders, and policy varies widely. Banks usually still want business financials as well as the lease.
A commercial property loan on rental income only is available from some non-bank lenders, where the lease and the tenant carry the application instead of full business financials. These loans typically come with a lower maximum LVR and a higher rate, and the lender still tests whether the rent covers the repayments. See the lease doc commercial property loan insight for how that assessment runs.
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