About KeptMiles
Developer & founder, Keep Computing
Why KeptMiles Exists
If you're self-employed and you drive for work, you're probably leaving money on the table. HMRC lets you claim up to 45p for every business mile you drive, but most people either guess their mileage, lose track halfway through the year, or don't realise they can claim at all.
I built KeptMiles after seeing this first-hand. Tradespeople, delivery drivers, landlords, and freelancers were all losing hundreds of pounds a year in unclaimed mileage, simply because there was no easy way to keep accurate records. The apps that did exist were almost all built for the American market, with IRS rules baked in and HMRC support tacked on as an afterthought. UK users had to manually configure tax rates, work around calendar-year reporting, and hope the threshold logic was correct. It rarely was.
KeptMiles fixes that. It runs quietly in the background, detects when you're driving, and logs every journey automatically. At the end of the month (or the tax year), you have a clean, accurate record of every business mile, ready to hand to your accountant or drop into your Self Assessment.
Built for the UK
Most mileage trackers are built for the US market and bolt on UK support as an afterthought. KeptMiles is different:
- HMRC's 45p/25p rates are native, not a setting you have to configure.
- The 10,000-mile threshold is handled correctly, including journeys that straddle it.
- Tax year runs 6 April to 5 April, not January to December.
- Reports are formatted for UK accountants and MTD software.
- Motorcycles (24p) and bicycles (20p) are supported.
How It's Built
I develop KeptMiles iteratively, shaped by feedback from the people who actually use it: plumbers fitting five jobs a day, estate agents driving between viewings, consultants covering motorway miles between client sites. Features are prioritised based on what real users ask for, not what looks good on a feature list. If something doesn't work well on a building site at 7am with cold hands and a cracked screen protector, it gets reworked until it does.
Keep Computing and the Kept Family
KeptMiles is made by Keep Computing, a small UK software company I run. It sits alongside two other apps in the Kept family: Kepthouse, which helps homeowners and landlords stay on top of property maintenance, and KeptQuote, which handles quotes and invoicing for tradespeople and small businesses. Each app is independent (you don't need one to use another), but they share the same philosophy: straightforward tools that do one job properly, without unnecessary complexity.
Privacy First
Your mileage data stays on your device. No accounts, no data harvesting. Anonymous usage analytics help me improve the app, but your journeys, locations, and personal details are never sent to any server. Optional Google Drive backup if you want it. Read the full Privacy Policy.
A Note on Tax
KeptMiles calculates mileage allowance based on published HMRC rates, but it is not a tax advisory tool. Every self-employed situation is different, and you should consult your accountant or tax adviser for guidance specific to your circumstances.
Get in Touch
Questions, feedback, or feature requests: mark@keepcomputing.co.uk