NEWS: The work mileage allowance for under 10,000 miles will rise by 10p to 55p backdated to April 2026.
So this means if you drive for work in your own car (like many care workers for example) you can be given up to 55p a mile tax and NI free. And if you're not given that level you can claim the tax back on the difference between what you're given and that amount
Eg so if you're given 30p /mile. You can reclaim tax paid on your wages for the 25p/mile difference.