Motor Mileage Allowance claims:
Govt allowance for Tax Year 10/11 = 40p 11/12 will be 45p.
RAF paid 25p per mile, therefore 40-25= 15p into the following equation.
15(p) x 40% of total 'miles' claimed = refund
If you have not kept a diary. Then take MMA allowance from JPA printout and divide by .25 = mileage originally claimed. I now repeat the mileage claimed at the end of the route in the comments box. (Having already included it in a box that subsequently disappears.)
This can be retrospectively claimed for 6 years.
Does not include GYH mileage, although I believe it can if the tour is less than two years and therefore temporary in the eyes of HMRC. Dont hold me to ransom on that though.