
Excess Mileage Calculator
Stay inside your lease limit
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About
Going over the mileage allowance on a lease or PCP agreement is expensive, and most people only find out at the end, when the invoice arrives. Excess Mileage Calculator shows you where you stand today — and what the miles you are on course to drive will cost you.
KNOW WHERE YOU STAND
Enter your agreement once: the allowance, the term, the delivery mileage and the pence-per-mile excess charge. Then just add an odometer reading whenever you fill up. The dashboard shows the miles you have used, the miles you should have used by now, and whether you are ahead or behind — with a projection of the excess miles and the exact charge you are heading for.
RECORD JOURNEYS WITH GPS
Start the recorder and the app tracks a journey in the background, right down to the addresses at each end. A Live Activity keeps the distance on your Lock Screen while you drive. Mark each journey as business or personal, then add its miles straight to your odometer.
CLAIM YOUR BUSINESS MILEAGE
Business journeys are totalled at HMRC's approved rates — 55p a mile for the first 10,000 miles of the tax year and 25p after that — with the tiers tracked properly across the 6 April tax-year boundary. Export a CSV of your journeys and claim amounts whenever you need to submit them.
SEE THE TREND
Charts show your mileage against the pace your contract expects, month by month, so a heavy few weeks is obvious long before it becomes a problem. Every reading you save is kept as a check you can look back on.
STAY AHEAD OF SERVICING
Add your service interval in miles or months and the app works out when the next one is due, with a reminder before it arrives — plus an optional monthly nudge to take a fresh reading.
ALSO INCLUDED
• An Apple Watch app and watch-face complications with your miles in hand, contract countdown and next service
• Home Screen and Lock Screen widgets showing your mileage at a glance
• Several vehicles tracked side by side
• Backup and restore to a file you keep
• Everything in pounds and miles, built for UK agreements
YOUR DATA STAYS YOURS
There is no account, no sign-in and no server. Your agreements, readings and journeys are stored on your device, and location is only used while you are recording a journey.
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What's New in Excess Mileage Calculator
1.2
October 23, 2026
Ready for iPhone Duo. • Open your iPhone Duo and the Mileage tab spreads across two columns — your reading and contract countdown on one side, your position, projected bill and servicing on the other. • History shows your chart across the top with your saved readings and services side by side. • Closed, everything fits the outer screen, with your tabs and buttons along the side where your thumb rests. The two-column layout works on iPad too.
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