Free tools for UK drivers

Free tools

Useful before the app is out.

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Tax calculator

Estimate your Income Tax and Class 4 National Insurance.

See HMRC's two ways of claiming for your vehicle side by side. Example figures are filled in: change them to yours.

Tax year (6 April to 5 April) Earnings for the year (£) Other allowable costs, not the vehicle (£) for example phone share, licence fees, parking, accountant I pay Scottish Income Tax

Vehicle Business miles in the year Vehicle running costs for the year (£) fuel, insurance, repairs, MOT, vehicle tax Business use of the vehicle (%)

Once you use the flat rate for a vehicle, HMRC requires you to keep using it for as long as you use that vehicle for your business. Going the other way depends on what you have already claimed for the vehicle. Ask your accountant. Rates: .

Making Tax Digital checker

When might Making Tax Digital apply to you?

Enter your qualifying income: your gross income from self-employment and property, before expenses. Leave a year blank if you do not know it.

2024-25 (£)

2025-26 (£)

2026-27 (£)

Enter at least one year.

Thresholds from gov.uk "Find out if and when you need to use Making Tax Digital for Income Tax" (updated 26 March 2026, checked 1 October 2026): qualifying income over £50,000 in 2024-25 means from 6 April 2026; over £30,000 in 2025-26 means from 6 April 2027; over £20,000 in 2026-27 means from 6 April 2028. Exemptions exist: check gov.uk.

Free record templates

Mileage and expense logs.

CSV

Mileage log template

One row per shift: work miles, home legs, personal miles and odometer readings.

CSV

Expense log template

One row per receipt: merchant, category, amount, VAT and business use. Opens in Excel, Google Sheets or Numbers.

No sign-up. Record templates only: they do not calculate tax. General information, not tax advice.