HMRC Mileage Tracker Features
Everything you need to track business mileage and claim from HMRC
Automatic Journey Detection
KeptMiles uses GPS and Android's activity recognition to detect when you're driving. It starts recording automatically when you get in your vehicle and stops when you arrive. No buttons to press, no app to open. Just drive and your miles are tracked.
The GPS adapts to your battery level: high accuracy when charging, balanced during the day, and battery-saving when power is low. All-day tracking without draining your phone. A speed gate checks you're actually driving before recording starts, preventing false detections when walking around a warehouse or your house.
HMRC Rate Calculation
Most mileage trackers apply a flat rate and call it done. HMRC's rules aren't that simple. The first 10,000 business miles in a tax year are at 45p, and everything after that drops to 25p.
KeptMiles handles this correctly, including journeys that straddle the threshold. If your 10,000th mile falls in the middle of a journey, the app splits the claim: part at 45p, part at 25p. It also supports motorcycles (24p) and bicycles (20p).
One-Tap Classification
Every journey needs classifying as business, personal, or commute. KeptMiles makes this fast: swipe right for business, left for personal, or tap to choose. Long-press to select multiple journeys and classify them all at once.
Set up saved locations for places you visit regularly, like your workshop, client sites, or home. Journeys ending at saved locations are classified automatically.
Tax Year Dashboard
Your dashboard shows the full picture at a glance: total business miles, running claim amount, and a progress bar showing how close you are to the 10,000-mile threshold. It updates in real time as journeys are recorded and classified.
The Stats screen adds monthly breakdowns with a bar chart, year-end claim predictions, and quick access to PDF/CSV export.
PDF & CSV Reports
Generate professional mileage reports ready for your accountant or MTD software. The PDF includes a summary page with your details, vehicle info, mileage breakdown by classification, rate tiers, and total claim, followed by a detailed journey log with dates, addresses, distances, and amounts.
The CSV export gives you raw data in a spreadsheet-friendly format for further analysis or import into accounting software.
Route Map & Playback
Every journey is drawn on an interactive OpenStreetMap, colour-coded by classification. Tap to expand to full screen, then open the playback controls to replay your journey with smooth animation.
The playback panel shows live stats as the marker moves: speed, cumulative distance, compass bearing, elapsed time, and a 24-hour clock. Adjust speed from real-time to 100x, step through frame by frame, or drag the scrubber to any point. Browse between journeys without closing the map.
Journey Planner
Plan business trips by setting the time you need to arrive. KeptMiles calculates your departure time from your current location using real road-distance routing.
As you move through the day, routes recalculate automatically and departure reminders adjust so you always leave with enough time. Link planned journeys to saved locations for one-tap setup.
A monthly calendar shows days with planned journeys at a glance. Deleted plans go to the Recycle Bin where you can restore them.
And More
Calendar View
Browse your journeys in month or week view, with coloured dots marking each day's trips by classification. Filter to show only business, personal, or commute journeys. Tap any day to jump straight to its journey list, useful for quickly checking what you drove on a specific date or spotting gaps in your records.
Journey Merge
Short stops at traffic lights or petrol stations can split what should be one continuous trip into two separate journeys. When KeptMiles detects two journeys close together in time and location, it suggests merging them. Tap to combine them into a single journey with the correct total distance.
Classify Reminders
It's easy to let unclassified journeys pile up. KeptMiles sends periodic notifications reminding you to classify outstanding trips, so nothing slips through the cracks at tax year end. A few taps each evening is all it takes.
Google Drive Backup
Back up your entire mileage database to Google Drive with a single tap. Automatic periodic backups run in the background so your records are always protected. Switching phones or had to reset your device? Restore your full journey history from Google Drive and carry on where you left off.
Manual Entry
Sometimes tracking isn't running. Perhaps you borrowed someone else's car, or your phone was off. Manual entry lets you add those journeys after the fact. Type the start and end addresses and KeptMiles geocodes them and calculates the road-following distance for you. Or enter the mileage yourself if you already know it. Either way, the journey is included in your claim totals just like any automatically tracked trip.
Unlock Past Months
Need past data for a tax return but don't want an ongoing subscription? Unlock individual months with a one-off purchase. Each unlock is permanent: once bought, that month's journeys are yours to view and export whenever you need them. Handy for Self Assessment season when you only need a few specific months.
Recycle Bin
Deleted journeys and planned journeys go to the Recycle Bin. Restore them if you change your mind, or permanently remove them.
Driving Detection
Set a minimum driving speed to prevent false journey starts from walking. Fine-tune GPS fallback thresholds for backup detection on devices with restricted Activity Recognition.
Free vs Premium
After 5th April 2027 (end of 26/27 tax year), KeptMiles stays free to use. Premium removes limits and adds extras.
Free
- 20 journeys tracked per month
- 3 saved locations
- Full automatic tracking and classification
- Route maps and journey playback
- Tax year dashboard and 10,000-mile threshold
- Calendar view
Premium: £1.49/month or £14.99/year
- Unlimited journeys every month
- Unlimited saved locations
- PDF and CSV report export
- Monthly charts and statistics
- Automatic Google Drive backup
- Per-month unlock for past months
