Over five million people overpaid their taxes to HMRC in 23/24 t the tune of £3.47bn... partly due the increasing complex tax code & partly as its not alway easy to see exactly what your won tax code entails.
But, unlike under-payments where the HMRC is pretty keen to rectify it, on over-payments its up to the tax payer to make an appeal & indeed HMRC claims no obligation to make sure people are paying their tax correctly.
The answer: make sure you *do* understand your tax code!
#tax
h/t FT


