What if I forgot to log a shift?
Add it with the correct date. JoltMile applies the mileage rate that was in force then, not today's, so a backdated shift is still calculated correctly.
Last checked 12/09/2026.
Add it with the date it actually happened. There is no penalty for logging late and nothing about the calculation depends on when you typed it in.
Rates are stored per shift as a snapshot, so a shift you backdate into an earlier tax year uses that year's mileage rates and your settings as they were, not today's. That is what makes a corrected record trustworthy.
Reconstructing from a platform statement is fine, and it is what most people end up doing for a week they were too busy to log. Earnings come off the statement; the miles usually have to come off your odometer or a route history.
If you cannot recover the miles, it is better to leave them out than to invent them. An underclaim is a shame; a figure you cannot support is a problem.
Related
Logging a shift
What each step of the shift wizard asks for, why, and what happens to it afterwards.
Getting startedUpdated 29/09/2026
How do I prove my mileage to HMRC?
A record made as you go, showing the date, business purpose and miles.
Mileage & expensesUpdated 19/08/2026
What records do I actually need to keep?
Every payment in, every allowable cost out, and a mileage log with dates and journeys. Enough that somebody else could rebuild your return from it.
HMRC & taxUpdated 19/08/2026
Business miles, commuting and the depot run
A business mile is one driven wholly for the work. Commuting between home and a regular workplace is never claimable. For most gig drivers the working day starts when the app goes on, which makes the drive to a chosen pickup zone personal and the drive between drops business.
Mileage & expensesUpdated 27/08/2026
Record keeping, and how long to keep it
You have to keep enough to show how every figure on your return was arrived at: what you were paid, what you spent, and how far you drove for the work. Records have to be kept for 5 years after the filing deadline for the year they cover.
HMRC & taxUpdated 27/08/2026
Capital allowances on a vehicle
A capital allowance is tax relief on something you bought to keep and use, spread over years rather than deducted at once. You cannot claim capital allowances on a vehicle and use the mileage rate for it, so for most gig drivers this is a road not taken.
Mileage & expensesUpdated 27/08/2026