Chattel mortgage or personal loan for a sole trader's vehicle? Which law applies, how each is assessed, and what changes for GST, interest and private use.
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Chattel Mortgage · Personal Loan · Sole Trader
A personal loan looks like the simple way to buy a work vehicle. It is assessed on you under consumer law, and it usually costs more. Here is how a sole trader chooses between a personal loan and a chattel mortgage, and when the personal loan really is the right call.
Quick Answer
For most sole traders buying a vehicle used mainly for work, a chattel mortgage is the better fit, because it is business credit secured by the vehicle, while a personal loan is consumer credit assessed on you alone. A personal loan makes more sense when the vehicle is mostly private use, too old or unusual to secure, or the amount is small. Our chattel mortgage guide covers how the structure works.
Also called: business car loan vs personal car loan, secured business finance vs unsecured personal loan. The second pair names the real difference: one loan is secured by the vehicle, the other usually is not.
Is a chattel mortgage or a personal loan better for a sole trader's vehicle?
A chattel mortgage is usually the better choice for a sole trader when the vehicle is used mainly for the business, and a personal loan is usually the better choice when it is not. Everything else in this comparison follows from one question the lender asks before anything else: what is the vehicle for?
The common belief runs the other way. A personal loan feels simpler: one application, cash in the account, buy whatever you like. In deals I've seen, that simplicity is mostly on the surface. The lender holds nothing, prices for that risk, and then assesses a self-employed applicant on the hardest test it has, which is verified personal income.
Under a chattel mortgage, you own the vehicle from settlement and the lender registers its security over it on the PPSR. An unsecured loan gives you money with no claim over anything. Put simply, a personal loan is assessed on you, a chattel mortgage on the vehicle and the business.
| What changes | Chattel mortgage | Unsecured personal loan |
|---|---|---|
| Security | The vehicle, registered on the PPSR until the loan is paid out | None. The lender holds no claim over the vehicle |
| Law that applies | Usually outside the National Credit Code, when the credit is wholly or predominantly for business purposes | The National Credit Code and responsible lending obligations |
| Assessment | The vehicle, the ABN and the business, with full doc or low doc options (varies by lender) | Your personal income, expenses and credit file, with self-employed income verified from tax returns |
| GST credit | Claimable on the purchase if you are registered for GST, for the business share, capped at the car limit for cars | The same rule. The credit follows the purchase and your registration, not the loan |
| Interest deduction | The business share is typically deductible | The business share is typically deductible where the borrowed money bought the vehicle |
| Private use | Limited. Lenders typically want the vehicle used mainly for the business (varies by lender) | No limit. Private use is what the product is built for |
Sources: ASIC, National Credit Code, for the scope of the Code. Read 10 November 2026. The tax rows are general information; your accountant confirms what you can claim.
Does being a sole trader change the comparison?
Being a sole trader changes the comparison because you and the business are the same legal person. You sign either loan in your own name and you are personally liable either way. What changes between the two is the purpose recorded on the contract, the law that applies to it and the test the lender uses, which is why sole trader business loans are assessed differently from the same person's consumer credit. If you are weighing a chattel mortgage against a secured consumer car loan rather than an unsecured one, we cover that in chattel mortgage vs car loan.
Why do personal loans sit under the National Credit Code and chattel mortgages usually do not?
Personal loans sit under the National Credit Code because the Code covers credit provided for personal, domestic or household purposes, and a chattel mortgage written for business use falls outside it. ASIC's National Credit Code page sets out that scope. This is the difference most comparisons skip, and it shapes everything from how you are assessed to which rules protect you.
The product name does not decide it. A lender can write a secured car loan to a consumer under the Code, and the same vehicle financed for a business sits outside it. It is consumer law or business law, decided by what the vehicle is for.
What is a business purpose declaration?
A business purpose declaration is the statement you sign telling the lender the credit is wholly or predominantly for business purposes. It is the document that moves the loan outside the Code, so it has to be true. If the lender knew or had reason to believe it was untrue, the Code can still apply, and the declaration is usually the first document anyone reads in a dispute. Sign a business purpose declaration you can stand behind. If the vehicle is really the family car, a business contract is the wrong document.
What protections do you keep outside the Code?
You keep real protections outside the Code; they come from different places. Business borrowers are still covered by the ASIC Act rules on misleading and unconscionable conduct, unfair contract terms protections for small business contracts and access to the external complaints scheme. What you give up is the consumer layer, including the responsible lending obligations that apply to the personal loan. Our guide to business loan protections sets out what stays in place.
Is a personal loan easier to get as a sole trader?
A personal loan is often harder, not easier, to get as a sole trader, because the lender must verify your income under responsible lending, and self-employed income takes more verifying than a payslip. Expect requests for tax returns and notices of assessment, typically covering more than one year, plus bank statements and a full list of living expenses.
The shape of your income matters as much as the total. A sole trader with a strong latest year and a weaker year before it can look worse on a personal loan, where the lender usually averages or takes the lower figure, than on a chattel mortgage, where the vehicle and the ABN history carry part of the weight.
Business lenders look at different things. ABN age, GST registration, the vehicle itself and how the business account runs all count. For sole traders without up to date returns, low doc options exist on an ABN car loan (varies by lender). Our chattel mortgage guide for small business covers the eligibility side in full.
Does a personal loan cost less than a chattel mortgage?
A personal loan usually costs more than a chattel mortgage for the same vehicle. The reason is simple: unsecured costs more because the lender holds nothing. If you stop paying a chattel mortgage, the lender can recover the vehicle. If you stop paying an unsecured personal loan, it has a debt claim and not much else, and the pricing reflects that.
A secured personal car loan narrows the gap, since the vehicle becomes security again. It is still consumer credit, though, so you still face full personal income verification and the Code still applies.
Is the lower repayment the cheaper loan?
A lower repayment often hides a higher total cost. A chattel mortgage can carry a balloon that cuts the regular repayment and leaves a lump sum at the end, and a longer term does the same thing to a personal loan. Both lower the monthly figure and raise the total interest. The cheaper repayment is not always the cheaper loan, so compare the total cost over the term: fees, interest, any balloon and the cost of paying out early. Our chattel mortgage calculator shows how a balloon and term change the numbers.
What happens to GST credits, interest and depreciation with each?
For a sole trader, GST credits, interest deductions and depreciation follow how the vehicle is used and whether you are registered for GST, not the name of the loan. This is where a lot of advice goes wrong. Because you own the vehicle under either loan, the tax position is closer than most comparison pages suggest.
- GST credit. If you are registered for GST, you typically claim the credit on the purchase for the business share, capped at the car limit for cars, whichever loan paid for it. If you are not registered, there is no credit either way; we cover that case in chattel mortgage when you are not registered for GST.
- Interest. Interest is typically deductible for the business share when the borrowed money bought a vehicle you use in the business. That test looks at what the money was used for, not what the loan is called.
- Depreciation. You own the vehicle, so you claim depreciation on the business share, with the car limit capping the cost you can depreciate for cars.
- Records. Every claim rests on your business use percentage, usually backed by a logbook.
Where the loan type does matter is the paper trail. A chattel mortgage records a business purpose from day one, which lines up with a high business use claim. A personal loan signed as consumer credit sits awkwardly beside a claim that the vehicle is almost all business use. If you later move the business into a company, the picture changes again, because a company car used privately by a director raises FBT on a company car.
When is a personal loan the better fit?
A personal loan is the better fit when the vehicle is mostly for private use, when it is a vehicle a lender will not take as security, or when the amount is small and you plan to clear it fast. Mostly private use points to a personal loan, and signing a business contract for the family car to chase a lower price creates a problem you do not need.
Older vehicles are the other common case. Business lenders typically set a maximum vehicle age at the end of the term (varies by lender), and some will not secure unusual imports or heavily modified vehicles without a valuation. A common result is a personal loan for the second, older vehicle and a chattel mortgage for the main work vehicle.
Three questions before you choose
- Will the business use the vehicle more than private use does?
- Is it a vehicle a lender will take as security, bought on a proper invoice?
- Is your ABN active, and will you keep a logbook?
Answers that point to a personal loan
- Mostly private or family use
- An older or unusual vehicle no business lender will secure
- A small amount you plan to clear quickly
What do lenders ask a sole trader for on each?
Lenders ask a sole trader for proof of personal income on a personal loan, and for proof of the business and the vehicle on a chattel mortgage. The paperwork overlaps, but the weight sits in different places.
- Personal loan. ID, recent tax returns and notices of assessment, bank statements, a living expenses declaration and a check of your personal credit file.
- Chattel mortgage. ID, your ABN and GST registration, the vehicle invoice or details, and either financials or, for low doc, a declaration supported by bank statements or BAS (varies by lender).
On a chattel mortgage the lender starts with the ABN history and the vehicle; on a personal loan it starts with the latest tax return. Our guide to what lenders look up on a self-employed borrower lists the checks in order. If you are also weighing a lease or hire purchase, see chattel mortgage vs lease vs hire purchase, and the Business Owners Hub covers the wider options for sole traders.
For a sole trader, the choice between a chattel mortgage and a personal loan is decided by what the vehicle is for. Mainly business use points to a chattel mortgage: business credit, secured by the vehicle, assessed on the ABN and the asset, usually priced lower. Mostly private use, an older vehicle or a small amount points to a personal loan, which is consumer credit assessed on your verified personal income. The tax claims follow the vehicle's use either way, so do not pick a loan for a tax benefit it does not give you.
Key takeaway: decide how the vehicle will be used first, then pick the loan that matches it, and compare total cost over the term rather than the repayment.Frequently Asked Questions
The best way to buy a car as a sole trader is usually a chattel mortgage when the car is used mainly for the business, because it is secured business credit assessed on the vehicle and the ABN. If the car is mostly for private use, a personal loan is the more honest fit. For leases and hire purchase as well, see our comparison of chattel mortgage, lease and hire purchase.
Getting a loan as a sole trader is often harder than on a payslip for consumer credit, because the lender has to verify self-employed income from tax returns and notices of assessment. Business finance such as a chattel mortgage leans on the ABN and the asset as well, and low doc options exist (varies by lender). Our guide to sole trader business loans covers what lenders accept.
Chattel mortgage vs personal loan for a sole trader comes down to what the vehicle is for: mainly business use points to a chattel mortgage, mostly private use points to a personal loan. The chattel mortgage is business credit secured by the vehicle and usually priced lower; the personal loan is consumer credit assessed on your personal income. An ABN car loan is the usual route for a sole trader's work vehicle.
You can use a personal loan to buy a work ute, and the business share of the interest and depreciation is typically still claimable because the claims follow how the ute is used. The trade off is that it is consumer credit, usually unsecured, priced higher and assessed on your verified personal income. Keep a logbook either way, because it backs the business use claim.
A chattel mortgage does show on your personal credit file as a sole trader, because you are personally liable and the lender usually checks your file before approval. The enquiry is typically recorded as a commercial enquiry rather than a consumer one (varies by lender). Our guide to what lenders look up on a self-employed borrower explains each check.
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