Work Related Car Expenses: Claiming the Right Way in 2026–27

If you use your car to do your job, you are generally entitled to claim the costs of using it for that work. That part is straightforward. The fiddly part is working out which method gives you the best result and keeping records that hold up if the ATO asks questions later.

For the 2026–27 year, the Australian Taxation Office maintains a work related car expenses calculator, last updated 1 July 2026, along with myTax 2026 instructions that walk through the deduction step by step. This guide covers what you can claim, the four methods on offer, and the places where people commonly lose money.

What counts as a work related car expense

The ATO's myTax 2026 instructions list the following as car expenses you can claim:

• decline in value
• registration
• insurance
• maintenance and cleaning costs
• repairs
• fuel costs

Other explanations of the deduction add fuel and oil, electric vehicle charging, servicing and repairs, and lease costs to that list. The thread running through all of it is that the expense has to relate to work use rather than the private driving you do in the same car. School runs, grocery trips and weekend drives do not belong in your claim, even though the registration and insurance bill covers the whole year.

The four methods for claiming work related car expenses

The ATO framework gives you four ways to work out your deduction: the cents per kilometre method, the 12% of original value method, the one third of actual expenses method, and the logbook method. You pick one method for each car for the year, and the method needs to match the records you actually hold.

Cents per kilometre method

This method is based on the work related kilometres you travel rather than your real costs. You can claim up to 5,000 kilometres of work related use per year under it. The rate itself is set by the ATO and can change between years, so confirm the current figure on the ATO site or through the calculator before you do the arithmetic. If you drive long distances for work, the 5,000 kilometre ceiling is the obvious limitation to keep in mind.

12% of original value method

The 12% of original value method is the second of the four ATO methods, and it is named for the percentage of the car's original value that it applies. Eligibility conditions apply, so check the ATO guidance or run your numbers through the calculator rather than assuming you qualify. It is a poor fit for older cars with modest purchase prices.

One third of actual expenses method

The one third of actual expenses method is the third option on the ATO list. As with the 12% method, there are conditions attached, and the calculator is the quickest way to test whether it applies to your situation. If it does not, the logbook or cents per kilometre route will usually be your fallback.

Logbook method

The logbook method covers all car related expenses, including insurance, registration, annual repairs, maintenance and fuel costs. Because it works from your real running costs instead of a flat per kilometre rate, it tends to suit people with high work use or expensive cars to run. The trade off is that the record keeping has to be genuine and complete, not reconstructed from memory in July.

Choosing between the four methods

There is no single best method that suits every driver. The right answer depends on how much of your total driving is for work, what your car costs you to run, and how disciplined your record keeping is.

As a rough way of thinking about it, a per kilometre figure works well when your work travel is modest and your records are simple. A method built on actual expenses will generally produce a larger deduction when your work use is high and your running costs are significant. The ATO calculator exists precisely so you can compare outcomes without guessing.

Records you need to keep

Every method needs evidence behind it. The cents per kilometre approach requires you to be able to show how you arrived at your work related kilometres. The logbook method requires a logbook plus the receipts, statements or invoices that support the expenses you are claiming.

Keep your car records separate from the rest of your tax paperwork. A fuel receipt mixed in with grocery dockets and a shoebox of other paperwork is the classic way people lose a deduction they were entitled to. Digital copies are fine, provided you can produce them if asked, and they are far easier to search when your accountant sends a follow-up email in September.

The ATO publishes record keeping guidance for car expenses, and it is worth reading once even if you plan to hand everything to a tax agent. Record rules also apply to how long you keep the paperwork, so check the current ATO position rather than relying on what you remember from a previous year.

Parking, tolls and vehicles that are not cars

Work related car expenses are not the only thing the ATO covers. Its motor vehicle and car expenses guidance also deals with parking, tolls, accidents, licence and fines, plus deductions for work related use of a vehicle that either does not belong to you or is not a car.

Those situations come with their own rules and they do not simply fold into a standard car expense claim. If you use a ute that belongs to your employer, ride a motorcycle, or pay for parking while travelling between work sites, check the specific ATO page before you include anything. Getting the category wrong is an easy way to attract attention for the wrong reasons.

Tools that make this less painful

The ATO's work related car expenses calculator is free and built for exactly this task. It was last updated 1 July 2026 and lets you work out the deduction you can claim for eligible vehicles. If you want a second estimate, run the same figures through a logbook and cents per kilometre calculator and see whether the two answers look sensible next to each other.

Lodgya, a Melbourne built browser based record keeping tool, offers a free car logbook and cents per kilometre calculator alongside a tax refund estimator and a 2026–27 ATO tax, BAS and super calendar. The free plan covers 10 entries, the Personal tracker is $4.95 a month and the Pro tracker is $9.95 a month, and the whole thing is designed to replace the shoebox with something searchable. Nothing here is tax advice, and Lodgya is not a registered tax agent, so treat any tool as a helper rather than a verdict.

Mistakes that shrink a claim

A few patterns show up again and again:

• Claiming the full year of registration and insurance when only part of your driving was for work.
• Forgetting the 5,000 kilometre cap that applies to the cents per kilometre method.
• Using a rate from an earlier year because it was the number you remembered.
• Keeping no logbook at all and trying to estimate work use afterwards.
• Mixing private trips into the work related kilometres you report.

Each of these is fixable with a bit of routine. Log your trips as they happen, save receipts digitally the day you get them, and reconcile the totals before you sit down to lodge. The claim itself takes minutes when the records already exist, and a lot longer when they do not.

Frequently Asked Questions

How many kilometres can I claim under the cents per kilometre method?

You can claim up to 5,000 kilometres of work related travel per year using the cents per kilometre method. Anything beyond that ceiling has to be dealt with under a different method, such as the logbook method. Keep a record of how you calculated your work related kilometres, because the ATO can ask you to show your workings.

What expenses does the logbook method cover?

The logbook method covers all car related expenses. That includes insurance, registration, annual repairs, maintenance and fuel costs, along with the other running costs you can substantiate. Because it uses your actual expenses rather than a set rate per kilometre, it often produces a better outcome for people with substantial work travel or costly vehicles to run.

What are the four methods for claiming work related car expenses?

The four ATO methods are the cents per kilometre method, the 12% of original value method, the one third of actual expenses method and the logbook method. You choose one per car per year. Eligibility conditions apply to some of them, so check the ATO calculator or the relevant ATO guidance before deciding which one to use.

Can I claim parking and tolls as car expenses?

Parking and tolls sit in a different part of the ATO's motor vehicle and car expenses guidance, alongside accidents, licence and fines, and deductions for using a vehicle that is not yours or is not a car. Those areas follow their own rules rather than the standard four methods, so check the ATO page before including them in your return.

Do I have to use the ATO calculator?

No, using the ATO's work related car expenses calculator is optional, but it is a sensible double check. It was last updated 1 July 2026 and calculates the deduction you can claim for eligible vehicles. Running your figures through it before lodging can catch a method choice or a total that does not stack up.