Move the sliders to see about what you could pay in Income Tax and National Insurance once your miles are claimed at HMRC's rate. It opens on a driver doing about 25 hours a week across a few apps. Nothing you type here is saved or sent anywhere.
Mileage comes off your profit, not off your tax bill. Each business mile lowers your profit by 55p for the first 10,000 in the tax year and 25p after that. The rate is instead of your real car costs, so fuel, insurance, servicing and repairs are not claimed as well. GOV.UK: simplified expenses for vehicles.
Once you use the flat rate for a car you keep using it for that car. For a high mileage van or private hire car your real costs can sometimes be more than the flat rate, so it is worth checking before your first claim.
A job or pension changes the result. It uses your £12,570 Personal Allowance, so Income Tax could start on your first pound of driving profit. Class 4 is worked on your driving profit alone, so it still starts at £12,570.
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Tax and NI: £0
You keep: £12,272 a year (£10.67 an hour)