Free Tool
Mileage Claim Calculator
The rate for the first 10,000 miles went up from 45p to 55p on 6 April 2026. Work out what your business miles are actually worth, and what that saves you in tax.
Your driving
Estimates are fine. Everything runs in your browser.
School runs, shopping, holidays — anything not for work has to come out before you claim.
Your mileage claim
£7,590
Off your taxable profit — worth roughly £1,973 in tax and National Insurance saved.
£1,000 of that is new this year
The rate for the first 10,000 miles rose from 45p to 55p on 6 April 2026. If you or your software are still working off the old rate, that is what you are leaving behind.
Simplified mileage replaces claiming fuel, insurance, servicing, road tax and depreciation — you use this method or actual running costs, never both. For some vehicles actual costs produce a bigger deduction. This is an estimate, not tax advice.
How It Works
Simplified mileage, in plain terms.
Instead of keeping receipts for fuel, insurance, servicing and everything else the car costs you, you claim a flat amount for every mile you drive for work.
55p a mile for the first 10,000 miles in the tax year, then 25p after that. One number to track, and no shoebox of faded receipts.
The trade-off is that it has to cover everything. You cannot claim the rate and your running costs as well.
Not sure whether mileage or actual costs is better for you?
We run both calculations for every client in their first year and use whichever legitimately gives you the lower tax bill.