Car Loans for Sole Traders: Rates and Options

A sole trader car loan lets you finance a vehicle for business use under your ABN, with rates currently starting from 6.20 per cent per annum for strong applicants. Your finance structure, not just the rate, determines how much you can claim back at tax time. Chattel mortgages, finance leases, and standard business car loans each treat ownership, GST, and depreciation differently. Here is how to choose the right one.

Why the finance structure matters more than the rate

The average car loan interest rate in Australia sits at 7.48 per cent per annum as of April 2026. But for sole traders, the headline rate tells only half the story. A chattel mortgage at 7.5 per cent with full GST credits and depreciation deductions can cost less after tax than a personal car loan at 6.5 per cent with no deductions at all. The structure you choose affects your BAS, your tax return, and your cash flow for the life of the loan.

Sole trader car finance structures compared

Four main structures cover most sole trader vehicle purchases. The right choice depends on your business-use percentage, GST registration status, and whether you want to own the vehicle outright from day one.

Chattel mortgage: the most common choice for sole traders

A chattel mortgage works like a secured car loan with added tax benefits. You take ownership of the vehicle immediately, and the financier holds a mortgage over it as security. Terms run from one to seven years.

The key advantage for GST-registered sole traders is claiming the GST credit on the full purchase price upfront on your next BAS. On a $55,000 vehicle including GST, that is a $5,000 credit in your first BAS period. You also claim depreciation and loan interest as ongoing deductions for the business-use portion.

A balloon payment at the end of the term is optional. Setting a 30 per cent balloon on a five-year term reduces your monthly repayments but means a lump sum at the end. Most sole traders refinance the balloon or trade in the vehicle before it comes due.

Finance lease: lower payments, different tax treatment

With a finance lease, the financier owns the vehicle and leases it to you. You claim the lease payments as a deduction rather than depreciation and interest separately. At the end of the term, the ATO sets mandatory residual values, so your final payment is predetermined.

Finance leases suit sole traders who want lower monthly outgoings and plan to replace the vehicle every three to five years. The trade-off is that you cannot claim the GST upfront, and you do not build equity in the vehicle during the lease term.

When a personal car loan makes more sense

If your business use is below 50 per cent, a personal car loan is usually simpler. You skip the GST and depreciation calculations entirely and claim your business kilometres using the ATO's cents per kilometre method, which is 88 cents per kilometre for 2025-26, capped at 5,000 business kilometres or $4,400.

Personal car loan rates currently range from 6.50 to 12.00 per cent per annum depending on credit history and vehicle age. For a sole trader whose vehicle is mostly for personal use with some client visits or site trips, this straightforward approach often wins on simplicity even if the rate is slightly higher.

Tax deductions: logbook method vs cents per kilometre

The method you use to claim vehicle expenses directly affects how much you get back. Sole traders have two ATO-approved options.

Cents per kilometre is the simpler method. You claim 88 cents for each business kilometre, up to 5,000 kilometres. That gives you a maximum deduction of $4,400 per year with no receipts needed. It works well if your business use is moderate and you do not want the record-keeping burden.

The logbook method requires a 12-week logbook recording every trip with start and end odometer readings, distance, and purpose. Once completed, the business-use percentage from that period applies to all your vehicle running costs for the year: fuel, registration, insurance, servicing, tyres, depreciation, and finance interest.

For a sole trader with 70 per cent business use driving 25,000 kilometres per year, the logbook method typically returns a deduction three to four times larger than cents per kilometre. If you are financing a vehicle through a chattel mortgage or business car loan, the logbook method lets you claim the interest as part of your deductible running costs.

The $20,000 instant asset write-off

For the 2025-26 financial year, eligible sole traders with aggregated turnover under $10 million can immediately deduct the business portion of an asset costing less than $20,000. This applies to the vehicle's depreciation value, not the GST-inclusive price.

On a vehicle costing $19,990 before GST with 80 per cent business use, you could deduct $15,992 in the year of purchase rather than spreading depreciation over several years. For vehicles above the threshold, standard depreciation rules apply.

What lenders check for sole trader car loans

The approval process mirrors sole trader loans generally, with a few vehicle-specific considerations.

ABN and trading history. Most lenders require at least 12 months of active trading. Banks want two years. Your ABN registration date is the starting point, but lenders verify active trading through bank statements.

Income verification. Expect to provide three to six months of bank statements showing consistent deposits. Minimum revenue thresholds vary by lender but typically start at $50,000 to $60,000 per year for vehicle finance.

Vehicle age and type. Lenders set limits on the age of the vehicle they will finance. Most cap at 10 to 15 years old at the end of the loan term. Newer vehicles attract lower rates because the security value is higher.

Credit score. A personal credit score above 600 opens the most competitive rates. Between 500 and 600, non-bank lenders offer options at higher rates. Below 500, specialist lenders may still approve but expect rates above 12 per cent per annum.

New vs used: how vehicle age affects your finance

New vehicles attract the lowest rates because lenders face less depreciation risk. The gap between new and used car loan rates is typically 0.5 to 1.5 percentage points. A new vehicle at 6.50 per cent versus a five-year-old equivalent at 8.00 per cent on a $40,000 loan adds roughly $3,100 to total interest over five years.

Used vehicles can still be a strong choice if the lower purchase price offsets the rate premium. A three-year-old vehicle at 70 per cent of the new price with a slightly higher rate often results in lower total cost of ownership. The key is checking the lender's maximum vehicle age at loan maturity.

For sole traders using the vehicle primarily for business, a used vehicle also means lower depreciation exposure. A vehicle that has already taken the steepest depreciation hit in its first two years retains a more predictable value during your ownership period.

How to apply for a sole trader car loan

Step 1: Decide your structure. Use the comparison table above. If you are GST registered and the vehicle is 51 per cent or more business use, a chattel mortgage is usually the strongest option. If you want lower monthly payments and plan to upgrade, consider a finance lease.

Step 2: Set up your logbook early. If you plan to use the logbook method for tax deductions, start your 12-week logbook before you purchase. Having a completed logbook ready at tax time maximises your first-year deductions.

Step 3: Get your documents together. You need your ABN certificate, three to six months of business bank statements, your most recent tax return, identification, and the vehicle details including make, model, year, and purchase price.

Step 4: Compare across lenders. Rates for sole trader car loans vary widely. A finance specialist with access to multiple lenders can compare options without multiple credit enquiries hitting your file. Our guide to sole trader finance covers the broader range of finance options available.

Step 5: Check the comparison rate. The comparison rate includes most fees and charges, giving you a truer picture of total cost than the advertised rate alone. Watch for establishment fees, monthly account-keeping fees, and early repayment penalties.

This article is general information only and is not financial advice.