Keepwright
Free UK Mileage Calculator
Find out what your business mileage is worth — using the current 2026/27 HMRC AMAP rate (55p) and, if you're VAT-registered, the AFR fuel-element VAT reclaim on top. Works in your browser. No signup. No tracking.
Calculate
VAT reclaim — AFR fuel-element
Receipt-keeping is mandatory. The reclaim is only valid if you keep VAT fuel receipts covering at least the fuel value claimed. No receipts → HMRC will disallow on inspection.
AMAP figure
Adjust the inputs to see your figure update.
VAT reclaim (AFR fuel-element)
Calculation uses HMRC's 2026/27 rates. This is not tax advice.
How the AMAP rates work (2026/27)
- Cars and vans
55p / mile for the first 10,000 business miles in the tax year.
25p / mile thereafter. Rose 45p → 55p effective 6 April 2026 — first increase since 2011.
Electric and plug-in hybrid cars use the SAME car rate. - Motorcycles
24p / mile — all miles, no threshold. - Bicycles
20p / mile — all miles, no threshold. (Yes, you can claim for cycling between sites for work.) - Passenger payment
+5p / mile per fellow-employee passenger you carry on the same business trip. Cars and vans only. Employees only — not self-employed.
What AMAP covers — and what it doesn't
The AMAP rate is all-inclusive: fuel/electricity · insurance · road tax (VED) · servicing · repairs · MOT · depreciation. You can't separately claim those actual costs on top of AMAP for the same vehicle.
- Separately claimable (NOT in AMAP)
Business tolls, parking, and congestion / clean-air charges (London CC, ULEZ). These are journey costs, not vehicle-running costs — they go on top of AMAP. (Parking fines / PCNs are NOT deductible.) - Method lock — self-employed
You can choose AMAP or the actual-cost (apportioned) method for a vehicle, but once you pick one for a given vehicle you must keep it for the life of that vehicle. AMAP is simpler; actual is more work but can be better for expensive/low-mileage cars. - If your employer paid above AMAP
The excess is taxable as income. AMAP is the ceiling for tax-free reimbursement, not a floor for what they must pay. - What HMRC expects you to keep
Date · start and end addresses · business purpose · total miles · vehicle. Retain for 5 years from the 31 January Self-Assessment deadline (self-employed); 22 months after end of tax year (employees); 6 years for VAT-related records.
The VAT-registered bit (the one people miss)
If your business is VAT-registered, the AMAP rate isn't the end of the story. You can also reclaim the VAT on the fuel element of the mileage — calculated separately from AMAP, using HMRC's Advisory Fuel Rates (AFR).
- The formula
VAT reclaim = business miles × applicable AFR (£/mi) ÷ 6
(Fuel is VAT-inclusive at 20%; the VAT fraction 20/120 = 1/6.) - The rates change quarterly
AFR is revised by HMRC every 1 March / 1 June / 1 September / 1 December — re-check the current quarter's figures (the calculator above uses March 2026 — re-verify before relying on the figure). - The receipts make it work — or break it
You must retain VAT fuel receipts covering at least the fuel value claimed. Without those receipts, the reclaim is disallowed on inspection. Snap them, file them, keep them 6 years. - What if I don't claim the VAT
You can ignore the VAT bit and just claim AMAP. The VAT reclaim is "found money" only available to VAT-registered businesses — but it's not optional in the sense that HMRC requires it; it's optional in that you can choose not to bother.
AFR snapshot (effective 1 March 2026 — re-verify quarterly): Petrol ≤1400cc 12p · 1401–2000cc 14p · >2000cc 22p. Diesel ≤1600cc 12p · 1601–2000cc 13p · >2000cc 18p. LPG 10p / 12p / 19p. Electric AER home 7p · public 15p.
The honest bit: this isn't tax advice
The calculator uses HMRC's published AMAP and AFR rates. It does not tell you whether a particular trip qualifies as “business mileage” (HMRC has specific rules about regular vs. temporary workplaces, ordinary commute, dual-purpose trips). It does not calculate your actual tax saving (which depends on your marginal rate). And it does not replace a proper conversation with an accountant if the amounts matter.
Official source for AMAP rates: gov.uk/expenses-and-benefits-business-travel-mileage. Official source for AFR: gov.uk/guidance/advisory-fuel-rates.
Keep this tidy with an app you buy once
Doing this with a spreadsheet works. Doing it with a subscription mileage tracker (MileIQ et al) is a yearly bill that adds up. Or you can pay once.
Mileage Tracker by Keepwright is in development — it'll capture trips automatically, separate business from personal, keep your VAT fuel receipts with the trips they relate to, and produce HMRC-format exports for both AMAP and the AFR VAT reclaim. One purchase. Yours forever. Read the product page → · Compare to MileIQ →