Sole trader tools · car rate current to 2026–27

Cents per km, or the logbook method?

The simple method caps out fast — 5,000 kilometres and that's it, no matter how much more you drove. If your business kilometres go beyond that, the logbook method has no cap at all, just more record-keeping. Here's what each actually gets you.

Cents per kilometre method

The simple option

One flat rate covers fuel, insurance, registration, servicing and depreciation. No receipts needed — just a record of how you calculated your business kilometres.

km
Capped at 5,000 km per car — anything beyond that isn't claimable under this method, no matter how much more you drove.
Logbook method

The no-cap option

Claim your business-use percentage of actual running costs, based on a 12-week logbook that stays valid for five years if your driving pattern doesn't change.

km
%

Business km ÷ total km, from your 12-week log.

$

Fuel, insurance, rego, servicing, tyres, loan interest.

$

Subject to the car depreciation cost limit — check the current figure with your tax agent.

Cents per km

$0
91¢/km, 2026–27 rate
Business km claimed0 km
Km over the cap, unclaimable0 km

Logbook method

$0
Business-use % of actual costs, no km cap
Running costs claimed$0
Depreciation claimed$0

Bigger claim

Best available deduction$0

Keeping a logbook by hand is the hard part

Apps that log trips automatically via GPS make the logbook method far less painful than a notebook on the passenger seat — worth it if your business kilometres are anywhere near the 5,000km cap.

See a logbook app that automates this →

Other sole trader tools