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Sole Trader Tax Estimator 2026/27
Estimates the Income Tax and National Insurance on your self-employed profit for 2026/27, when it is due, and what to save each month
£12.00
Software
Mileage & Expenses Log
Log business miles and receipts as you go; it works out your mileage claim at HMRC rates and totals everything by tax year
£19.00
How you’ll receive this product
Available to download as soon as your payment is confirmed
This is delivered digitally. As soon as your payment is confirmed you will get a private link to your files on your order page. Keep the link to that page — it is where your purchase lives.
You receive
- Mileage & Expenses Log — mileage-expenses-log.zip
- Secure Stripe checkout — we never see your card details
- Your files appear on your order page the moment payment clears
About this product
Log a trip in ten seconds, snap the receipt, and have your mileage claim and expenses added up for your tax return.
What it does
- Mileage at HMRC’s approved rates: 55p a mile for cars and vans for the first 10,000 business miles from the 2026/27 tax year (45p before 6 April 2026), then 25p; 24p for motorcycles; 20p for bicycles when you are an employee.
- Splits the trip that crosses 10,000 miles between the two rates, automatically, and counts per tax year (6 April to 5 April).
- Return trips, regular trips and mileometer readings so logging is quick.
- Expenses with receipt photos, in the categories used on the Self Assessment self-employment pages, with the VAT.
- Tax year summary for your accountant or your return: miles, claim, expenses by category and VAT. Print it or export spreadsheet files.
- Employee mode for people claiming mileage from their employer.
The rates are in Settings, so if HMRC changes them you update one line.
Your information stays with you
Everything is saved in your browser on your own computer, receipts included. The file cannot connect to the internet at all. A one-click backup saves everything to a file you keep safe.
A record-keeping tool, not tax advice.
Features
- HMRC mileage rates by tax year: 55p/25p cars and vans from 2026/27, 45p before
- Splits the trip that crosses 10,000 miles
- Return trips, saved regular trips and mileometer readings
- Expenses with receipt photos and VAT
- Self Assessment expense categories
- Tax year summary to print or export
- Self-employed or employee mode
- Works offline - nothing is sent anywhere
- One-click backup and restore
Product questions
HMRC's approved rates, which you can edit in Settings. For cars and vans: 55p a mile for the first 10,000 business miles and 25p after that from the 2026/27 tax year (45p before 6 April 2026). Motorcycles 24p, and bicycles 20p (bicycles for employees only).
No. It gives you tax-year totals for mileage and expenses to copy into your Self Assessment return or hand to your accountant. It does not send anything to HMRC.
Yes. It is a single file that opens in any up-to-date web browser - Chrome, Edge, Firefox or Safari - on Windows or Mac. There is nothing to install.
No. It works completely offline, and it is built so that it cannot send anything over the internet at all.
Only in your web browser, on your computer. Nothing is sent to us or anyone else. Always open the same file in the same browser, and do not use a private or incognito window, because those throw information away when they close.
Yes. Go to Backups and choose Back up my data - it saves one file you can keep on a USB stick or in cloud storage. Restore that file on any computer. It does not sync between computers by itself, so back up every week.
The screens fit a phone, but phones and tablets handle downloaded files differently and some will not open it. It is made for a computer or laptop.
No. You pay once and the file is yours to keep. There is no account to create and nothing to renew.
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