The ATO Is Collecting 1.5 Million Car Records a Year: What It Sees About You

The Australian Taxation Office (ATO) has confirmed it will keep harvesting records from every state and territory motor vehicle registry, this time covering the 2025-26 financial year all the way through to 2029-30. If a vehicle is newly registered or transferred and the purchase price or market value is $10,000 or more, it goes into the file.

The ATO estimates it will collect records relating to around 1.5 million individuals every single financial year. That is not a small compliance project. It is a standing feed of information about who bought what car, for how much, and where they keep it.

None of that is a reason to panic, and the program is not new — versions of it have been running for the better part of two decades. But it does change the maths on one very common tax-time habit: guessing. Here's what the ATO actually receives, and the two places it genuinely matters for an ordinary wage earner.

This is registry data, not bank data. It comes straight from the body that registers your car in your state, and it is matched against what the ATO already holds about you. The data items include:

The ATO's stated purposes are fairly blunt. It wants to spot taxpayers who have bought vehicles with values that don't match the financial position they've reported. It wants to check obligations across a range of taxes — GST, fringe benefits tax, luxury car tax, fuel tax credits and income tax. And it feeds the whole lot into modelling, risk profiling and case selection.

Most of that language is aimed at businesses. But individuals get swept in, because a registry doesn't know or care whether the person buying a $45,000 ute is a sole trader or a salaried employee. If your declared income and your vehicle purchases look wildly out of step, that is the kind of mismatch the model is built to surface.

Being surfaced is not the same as being in trouble. It generally means a letter asking you to explain or confirm something. The problem only starts if you can't.

Car expenses are one of the largest and least-documented claims in the Australian tax system, and the ATO has been loud about it this year. In July 2026 it emailed more than 500,000 taxpayers who had previously claimed car expenses, under the subject line 'Are your car expenses work-related?'. The ATO's message was blunt: it is watching car expense claims more closely than ever, with a strong focus on claims it thinks are incorrect or excessive.

Two patterns draw attention. The first is claiming travel between home and your regular workplace — that is private travel, and it is not deductible no matter how long the drive is. The second is claiming exactly the 5,000 kilometre cap, year after year, with nothing to show how the number was reached.

If you use the cents-per-kilometre method, the rate is 88 cents for 2025-26 — the year on the return most people are lodging right now — and it rose to 91 cents from 1 July 2026. Either way you're capped at 5,000 work kilometres per car, which is a maximum claim of $4,400 for 2025-26 and $4,550 for 2026-27.

Sam is a nurse earning $95,000, and drives between two clinic sites during the working day. That's genuinely deductible travel. Sam works it out honestly: about 42 work kilometres a week over 46 working weeks, so 1,932 kilometres.

At the 2025-26 rate of 88 cents, that's a deduction of $1,700. On $95,000 Sam's marginal rate is 30% plus the 2% Medicare levy, so the claim is worth about $544 back.

Now suppose Sam instead 'rounds up' to the full 5,000 kilometre cap, claiming $4,400. That's $2,700 of deduction Sam cannot substantiate. If the ATO disallows it, Sam repays roughly $864 of tax — and general interest charge runs on the shortfall from the original due date. Since 1 July 2025, that interest is no longer tax deductible, so it costs full freight.

The honest claim was worth $544. The inflated one risked $864 plus interest to chase another $864. That is not a good trade.

Here's the genuinely reassuring part. Your car is specifically exempt from capital gains tax. A car for these purposes is a motor vehicle designed to carry a load of less than one tonne and fewer than nine passengers, and that exemption has been in place since CGT began in 1985.

So if you sell your ten-year-old hatchback, or even a classic that has quietly appreciated, the profit is not a capital gain and there is nothing to report. The registry data showing up in the ATO's systems doesn't change that.

The exception is when buying and selling vehicles stops looking like disposing of your own property and starts looking like a business. If you turn over vehicles regularly and commercially — buying to resell at a profit — the ATO can treat the profits as ordinary income. Ordinary income is taxed at your full marginal rate with no CGT discount, and repeat transfers in one name are exactly the pattern registry data makes visible.

Nothing here requires a spreadsheet or an accountant on retainer. It mostly requires writing things down while they're still true.