Add the requested inputs
Use the labelled fields in the workspace above. If example values are provided, try them first or replace them with your own.
Travel & transport · Free online tool
Mileage allowance calculator
Calculate a business mileage claim and compare it with the current HMRC approved car and van rates. Check an employer reimbursement rate against the editable 2026/27 HMRC reference tiers and an estimated actual vehicle cost.
3 guest runs per rolling 24 hours10 with a free accountPrivate inputsMobile-friendly
Mileage allowance calculator workspace
Runs locally in your browser
The reference fields use HMRC's 2026/27 approved mileage rates for eligible business travel in your own car or van. All values remain editable.
Result
Entered-rate claim—
Reference-rate amount—
Effective rate—
Estimated travel cost—
Versus estimated cost—
Above reference—
Below reference—
Use it with confidence
How to use the mileage allowance calculator.
Calculate and review
Use the main action when needed. Entered-rate claim = business miles × claim rate. The reference amount applies the first rate up to the entered annual threshold and the additional rate above it.
Try a worked example
For tax year 2026/27, 125 eligible car or van business miles at the 55p first-tier rate produces a reference amount of £68.75.
Check the assumptions
The default 55p and 25p car and van rates apply to tax year 2026/27. Different vehicles, earlier years, company cars and employer policies use different rules; this is not tax advice.
Checked sources
Official guidance behind this tool.
Travel — mileage and fuel rates and allowances
For tax year 2026/27, HMRC lists approved car and van rates of 55p for the first 10,000 eligible business miles and 25p for each mile above that threshold.
Reference checked 25 July 2026. The source takes priority if guidance changes.
Helpful answers
Mileage allowance calculator FAQs.
Is the mileage allowance calculator free?
Yes. Guests receive 3 runs per rolling 24 hours, verified free accounts receive 10, and Premium subscribers receive unlimited normal use.
Does UtilHub upload or save my inputs?
No. This tool runs in your browser and UtilHub does not receive or store the values you enter. Your browser or device may still retain normal local history or form data.
How does this mileage allowance calculator work?
Entered-rate claim = business miles × claim rate. The reference amount applies the first rate up to the entered annual threshold and the additional rate above it.
What should I check before using the result?
The default 55p and 25p car and van rates apply to tax year 2026/27. Different vehicles, earlier years, company cars and employer policies use different rules; this is not tax advice.