Mileage Log Generator Free (UK)
Create a business mileage log, calculate HMRC allowances and estimate tax relief.
Mileage Log Inputs
For employee-owned vehicles and trips from 6 April 2026 to 5 April 2027 only. Cars/vans use 55p for the first 10,000 business miles, then 25p. Keep separate logs for different tax years and employments. Dates outside 2026/27 stop the calculation. Earlier years used 45p/25p.
Entitlement Breakdown
| Item | Calculation | Amount |
|---|---|---|
| 55p rate band | Log your trips below | - |
| 25p rate band | Log your trips below | - |
| Employer reimbursement | Miles × employer rate | - |
| Shortfall Eligible For Tax Relief | AMAP entitlement − employer reimbursement | - |
Your Generated Mileage Log
| Date | Business Purpose | Miles | Cumulative | Rate Applied | Amount |
|---|
Scenario Analysis
| Scenario | Miles | Estimated Entitlement |
|---|---|---|
| Your current log | - | - |
| Same miles as Motorcycle | - | - |
| Same miles as Bicycle | - | - |
| + 500 more business miles this tax year | - | - |
Mileage Claim Timeline
Log each trip as it happensRecord the date, purpose and business miles as soon as possible after each trip.
Track your running totalWatch the 10,000-mile threshold if you drive a car or van — the rate drops to 25p after.
Compare to what your employer paysIf your employer pays less than the approved rate, you may claim tax relief on the shortfall. The cash saving depends on your tax rate; it is not the full shortfall.
Claim through the right channelEmployees use Self Assessment or form P87; self-employed people use simplified expenses mileage rates.
Keep your recordsRetain your mileage log and this generated summary for at least 5 years in case HMRC asks to see it.
What Is a Mileage Log?
A mileage log is a record of every business trip you make in your own vehicle, including the date, purpose and distance travelled. HMRC expects a mileage log to support any claim for Approved Mileage Allowance Payments (AMAP) or Mileage Allowance Relief, when you claim as an employee using your own vehicle. Keep the start and end postcode for every journey with your records.
How Does HMRC Mileage Allowance Work?
HMRC sets flat-rate mileage payments so you don't need to track actual fuel and running costs for every trip. Cars and vans earn 55p per mile for the first 10,000 business miles in a tax year, then 25p per mile after that. Motorcycles earn 24p per mile and bicycles 20p per mile, both flat rates with no threshold.
Who Qualifies?
Employees who use their own vehicle for business travel, and self-employed people using the simplified expenses method, can both use these rates. The mileage must be genuine business travel — not ordinary commuting between home and a permanent workplace.
Common Mistakes
Common errors include forgetting to include mileage already claimed earlier in the tax year, treating commuting miles as business miles, applying the 55p rate to all miles even after crossing 10,000, and not comparing employer reimbursement against the AMAP rate to check for unclaimed relief.
What Happens Next?
Once your log is complete, employees can claim any shortfall in Mileage Allowance Relief through Self Assessment or form P87, while self-employed people include mileage under simplified expenses on their tax return. Keep your generated log and receipts as supporting evidence.
Important Considerations
Mileage records should be kept for at least 5 years in case HMRC asks to see them. If you change vehicles or vehicle type partway through a tax year, keep separate totals for each vehicle since the flat rates apply per vehicle type, not per person overall.
Frequently Asked Questions
What is a mileage log generator?
It's a tool that turns the business trips you enter into a usable HMRC-style mileage record, automatically applying the correct Approved Mileage Allowance Payments (AMAP) rate to each trip — rather than a blank template you fill in and calculate by hand.
How much can I claim per mile in the UK?
For cars and vans, 55p per mile for the first 10,000 business miles in a tax year, then 25p per mile after that. Motorcycles are 24p per mile flat, and bicycles are 20p per mile flat — neither has a mileage threshold.
What counts as business mileage?
Travel to a temporary workplace, between two workplaces, to meet clients or suppliers, or other work-related journeys away from your normal base. It does not include ordinary commuting between home and a permanent workplace.
Do I need to keep a mileage log if my employer pays a car allowance?
A monthly car allowance is separate from mileage payments. You should still keep a mileage log for any business miles you drive, since you may still be entitled to AMAP mileage payments or tax relief on top of a car allowance.
What if my employer pays me less than the 55p/25p HMRC rate?
You can claim Mileage Allowance Relief (MAR) on the difference through Self Assessment or form P87. This tool calculates that shortfall automatically from the employer rate you enter.
What if my employer pays me more than the HMRC rate?
Any amount paid above the AMAP rate is normally treated as a taxable benefit and should be reported to HMRC. This tool floors the additional relief at £0 in that case rather than showing a negative number.
Can self-employed people use this tool?
This tool models employees using their own vehicles. Self-employed people should check the separate simplified-expenses rules and eligibility; do not assume the employee bicycle allowance applies to a self-employed claim.
What happens after I pass 10,000 business miles in a tax year?
The rate drops from 55p to 25p per mile for cars and vans for the remainder of that tax year. The threshold resets each new UK tax year on 6 April.
Do motorcycles and bicycles have different rates?
Yes. Motorcycles are 24p per mile and bicycles are 20p per mile, both flat rates with no 10,000-mile threshold, unlike cars and vans.
How long should I keep my mileage records?
HMRC generally expects self-employed people to keep business records, including mileage logs, for at least 5 years after the 31 January submission deadline for the relevant tax year. Employees claiming relief should keep records for the years they claim for.
Can I claim mileage for travel between two work sites?
Yes, travel directly between workplaces for the same employment counts as business mileage. It is ordinary home-to-work commuting that is excluded.
Does this tool save or send my data anywhere?
No. Every trip you enter and every calculation happens locally in your browser. Nothing is uploaded, stored, or shared.
Can I export or print my generated mileage log?
Yes. Use the Copy Results, Print Results, or Download PDF actions to save a copy of your generated log and totals for your own records or to attach to an expense claim.
What if I forget to log a trip — can I add it later?
Yes, add a new trip row at any time with the correct date, purpose and mileage. Because trips are sorted by date, adding a missed trip recalculates the 55p/25p split for every trip in the log automatically.
Is this legal, tax, or financial advice?
No. This tool gives an estimate only based on standard HMRC rates. It is not legal, tax, or financial advice — for a specific claim or dispute, check GOV.UK or speak to a tax adviser or your employer's payroll team.
Sources
- HMRC: mileage and fuel allowances
- GOV.UK – Claim tax relief for your job expenses: vehicles you use for work
- GOV.UK: simplified expenses for the self-employed
- GOV.UK – Expenses and benefits: business travel mileage for employees' own vehicles
Last updated: 2026-09-09. This page gives an estimate only and is not legal, tax, or financial advice.
About this tool
Created and maintained by CoryVu. Read how we check our tools and consult the sources and assumptions on this page.
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