The ATO has set the rate of work-related car expense deductions at 78 cents per kilometre for 2022–2023 (up from 72 c/km). Income Tax Assessment – Cents per Kilometre Deduction Rate for Car Expenses Determination 2022 will apply to eligible taxpayers who elect to use the cents per kilometre method when calculating income tax deductions for their work-related car expenses from 1 July 2022.