Lease or buy? Vehicle purchase options for individuals, sole traders and small business owners

Buying a vehicle is often presented as a simple decision: should you lease or buy? In practice, the better question is broader: who will use the vehicle, how much of the use will be business-related, who should own it, how will it be funded, and what records will support the tax treatment?

For retail clients, sole traders and small business owners, the right answer can be quite different depending on whether the vehicle is a family car with occasional business use, a ute used by a tradesperson, a van used for deliveries, or a semi-truck used in a transport business. A low monthly repayment may not be the best option if the arrangement creates poor tax outcomes, high end-of-term costs, or limited flexibility. Equally, paying cash for a vehicle may not be ideal if it drains working capital that could be better used elsewhere in the business.

This article considers the main vehicle acquisition options: outright purchase, finance purchase, chattel mortgage, operating lease and finance lease.

Start with the use of the vehicle

Before comparing finance products, first identify the vehicle’s intended use.

A vehicle may be:

• mainly private;
• partly private and partly business;
• mainly business-use;
• a commercial vehicle, such as a van, ute or delivery vehicle;
• a heavy vehicle, such as a semi-truck or prime mover.

This distinction matters because the tax treatment depends heavily on business use, ownership, vehicle type and substantiation. The Australian Taxation Office allows motor vehicle deductions for business use, but private use must generally be excluded or adjusted.

For passenger cars and mixed-use vehicles, business owners and individuals need to be particularly careful. A trip from home to work is usually private travel, even if the person needs a car to get there. Business travel is more likely to include travel between work sites, visiting clients, collecting supplies, making deliveries, or other travel directly connected with earning assessable income.

For sole traders and employees using their own cars, the common methods are the cents-per-kilometre method and the logbook method. For the 2025–26 income year, the ATO cents-per-kilometre rate is 88 cents per business kilometre, subject to the relevant cap under that method.

The critical information at a glance

Option 1: buying the vehicle outright

Buying outright is the simplest structure. The buyer pays cash, takes ownership of the vehicle immediately, and does not incur finance repayments or interest costs.

This can suit a business with strong cash reserves, particularly where the vehicle will be kept for several years. It can also suit a small business that wants full control over the vehicle, without restrictions on kilometres, modifications, branding or resale.

The downside is cash flow. A vehicle can consume capital that may be needed for stock, wages, tax payments, equipment, marketing or seasonal business expenses. The business may get tax deductions over time, but the cash leaves the business immediately.

For business-use vehicles, the owner may be able to claim running costs and depreciation to the extent the vehicle is used for business. These costs may include fuel, servicing, registration, insurance, repairs and depreciation. If the vehicle is used partly for private use, only the business-use portion should be claimed.

For passenger cars, the car limit is important. For 2025–26, the car limit is $69,674. Where the cost of a car exceeds the car limit, depreciation and GST credit outcomes may be capped. The ATO states that for 2025–26, the maximum GST credit for a car is $6,334, which is one-eleventh of $69,674.

This can surprise buyers of more expensive vehicles. Paying $95,000 for a car does not automatically mean deductions and GST credits are based on the full purchase price. The treatment depends on the type of vehicle, its use, GST registration and the relevant car limit rules.

Case study: Grace buys a car for mixed business and private use

Grace runs a home styling business as a sole trader. She buys a $58,000 SUV using savings. She uses the car to visit clients, inspect properties and collect styling items, but also uses it for school drop-offs and weekend family trips.

Grace estimates that 65% of her vehicle use is business-related. Her accountant recommends a logbook because Grace’s business travel is regular and likely to exceed the practical limit under the simple cents-per-kilometre method.

The key point is that Grace cannot claim 100% of the vehicle costs, as the car is registered in her name and used for business purposes. She needs evidence of the business-use percentage. Her deductions for depreciation and running costs will need to be apportioned.

For Grace, buying outright is clean and flexible. However, the cash cost is high, and she carries the risk of depreciation and eventual resale value.

Option 2: finance purchase, chattel mortgage or commercial hire purchase

Many buyers prefer to finance the vehicle rather than pay cash. This may involve a car loan, chattel mortgage, commercial hire purchase or similar arrangement.

The commercial labels matter less than the actual legal and tax consequences. The key questions are:

• who owns the vehicle;
• whether the buyer is entitled to claim depreciation;
• whether interest is deductible;
• when GST credits can be claimed;
• whether there is a balloon payment;
• whether the car limit applies;
• how private use is recorded and adjusted.

A chattel mortgage is common for business vehicles. The business usually acquires the vehicle, and the lender takes a security interest in it. This often suits businesses that want ownership from the start, while preserving cash flow.

The interest component of repayments may be deductible to the extent the vehicle is used for business. The principal component is not usually claimed as a direct deduction, because it represents repayment of the amount borrowed. Instead, depreciation or decline in value may be claimed where the business is treated as owning the asset, subject to the relevant rules.

Finance can be sensible where the vehicle will help generate income, but the buyer does not want to drain cash reserves. The trade-off is that interest increases the total cost. A balloon payment can reduce monthly repayments, but it creates a future lump sum obligation.

Case study: Daniel, the electrician, finances a work ute

Daniel operates a small electrical business through a company. He buys a dual-cab ute for $72,000 using a chattel mortgage. The ute is used for tools, materials, site visits and client work. It is also occasionally used for private travel.

Daniel’s accountant explains that the company needs to keep proper records of business and private use. The fact that the vehicle has toolboxes and business signage does not automatically make all use deductible. The business also needs to consider whether any private use could create fringe benefits tax issues if the company provides the vehicle to Daniel as an employee or director. That employer-related issue is covered in Part 2 of this series.

From a finance perspective, the chattel mortgage helps Daniel preserve cash. He keeps money available for wages, materials and supplier accounts. However, his accountant also models the total cost of finance, including interest and the balloon payment.

For Daniel, the right answer is not just “the monthly repayment is affordable”. The better questions are whether the ute delivers sufficient business value, whether the records support the tax claims, and whether the end-of-term balloon will be manageable.

Option 3: operating lease

An operating lease is often used where the business wants access to a vehicle without necessarily owning it at the end. The business pays regular lease payments to use the vehicle.

This can suit businesses that want predictable vehicle costs, regular vehicle replacement, and less concern about resale value. Some leases may include maintenance, fleet management or other services.

The potential benefits are:

• lower upfront cash requirement;
• fixed monthly payments;
• easier budgeting;
• regular replacement cycle;
• reduced residual value risk;
• possible inclusion of servicing or fleet management.

The potential disadvantages are:

• the business may not own the vehicle;
• kilometre limits may apply;
• excess wear-and-tear charges may apply;
• lease payments can still be expensive over the full term;
• early termination may be costly;
• business and private use still need to be considered.

An operating lease is often attractive where the vehicle is a business tool rather than an asset that the owner wants to keep. However, the total lease cost should be compared with a purchase or a financed purchase over the same period.

Option 4: finance lease

A finance lease sits somewhere between simple leasing and financed ownership. The business leases the vehicle for a term and may have a residual value obligation at the end.

A finance lease can suit a business that needs the vehicle for income-producing use but does not want to pay the full purchase price up front. However, the business should understand the end-of-term position. Is there a residual payment? Can the vehicle be purchased? Must it be returned? Is there exposure if the market value is lower than expected?

Finance leases can also have different accounting and tax consequences from operating leases or chattel mortgages. This is an area where advice should be obtained before signing, especially for companies, trusts and businesses with multiple vehicles.

Mixed-use vehicles: the record-keeping issue

The most common problem for small business clients is not choosing the wrong car. It is failing to keep records that support the claim.

Where a vehicle is used partly for business, and partly privately, deductions generally need to be apportioned. The ATO’s car expense rules allow different methods depending on the taxpayer and vehicle circumstances, including the cents-per-kilometre method and the logbook method for eligible taxpayers.

The cents-per-kilometre method is simpler, but it may not produce the best outcome for higher business-use vehicles. The logbook method requires more discipline, but it may yield a more accurate and sometimes larger deduction when the business-use percentage is high.

A proper vehicle logbook usually records:

• date of each trip;
• odometer readings;
• kilometres travelled;
• purpose of the trip;
• business or private classification.

The practical rule is simple: if the claim is material, the records should be strong. A diary note made at year-end is usually much weaker than a properly maintained logbook or digital vehicle record.

Heavy vehicles and semi-trucks: treat them as business assets

A semi-truck is different from a family SUV. It is generally acquired because it is central to earning income. For transport, logistics, farming, contracting and construction businesses, the vehicle is often one of the business’s core assets.

For heavy vehicles, the lease-versus-buy decision should focus on whole-of-life cost rather than the lowest monthly payment.

Key issues include:

• expected kilometres;
• fuel cost;
• servicing and repairs;
• tyre replacement;
• registration and insurance;
• finance interest;
• GST credits;
• depreciation;
• downtime risk;
• driver requirements;
• residual value;
• replacement cycle;
• whether the vehicle will be modified or specialised.

Case study: Ravi buys a semi-truck for his transport business

Ravi operates a small transport business in regional Victoria. He has the opportunity to take on a new freight contract, but he needs another prime mover. The vehicle will cost $210,000 plus on-road costs.

Ravi compares two options:

1. finance purchase with a balloon payment after five years;
2. an operating lease with maintenance included.

The finance purchase option gives Ravi ownership and flexibility. He can modify the vehicle for his operations, keep it for more than 5 years, and potentially benefit from its resale value. However, he carries the maintenance risk and must plan for the balloon payment.

The operating lease has a higher monthly cost but includes maintenance. This gives Ravi more predictable cash flow and reduces the risk of large repair bills. However, he must check kilometre limits, excess usage charges and what happens if the freight contract ends early.

For Ravi, the tax outcome is important, but the operational issue is just as important. If downtime causes him to lose freight work, a cheaper finance option may not be better overall.

Flow chart: choosing the right vehicle structure

Practical decision checklist

Before signing a contract, ask the following questions:

1. Is the vehicle mainly private, mainly business, or mixed-use?
2. Is it a passenger car, commercial vehicle or heavy vehicle?
3. Who will own or lease the vehicle?
4. Is the buyer registered for GST?
5. Does the car limit apply?
6. Will the vehicle be kept long-term or replaced regularly?
7. Is cash flow more important than ownership?
8. Is there a balloon or residual payment?
9. What is the total cost over the full term?
10. Are kilometre limits or excess usage charges relevant?
11. What business-use records will be kept?
12. What happens if the vehicle is sold, traded in, or no longer needed?

Conclusion

The best vehicle option is rarely determined solely by tax. A lease may improve cash flow but limit ownership flexibility. Buying outright avoids interest, but it can tie up valuable cash. Finance purchase can provide ownership and spread the cost, but interest and balloon payments need to be carefully modelled. For heavy vehicles, maintenance, downtime and contract certainty may matter more than the tax deduction.

For small business owners and individuals using a car for work, the key is to look beyond the monthly repayment. The better approach is to compare whole-of-life cost, tax treatment, GST, depreciation, business-use percentage, record-keeping and end-of-term risk before committing to the vehicle structure.