I was not aware that I can find PAYE statements on my HMRC online account. Due to an allocation problem I stumbled on it. I discovered that I have a credit from an overpayment in 2010/11. Due to the peculiar accounting practice of HMRC, this was not automatically carried forward. I have asked for repayment and received the following reply:
"Prior to any repayment or reallocation of this overpayment we must first of all establish that it is genuine. We will therefore require an explanation as to how this overpayment came about. I would suggest checking the information submitted on the end of year return is correct. Secondly check the payments you have made against the information on the end of year return. Once we have received a satisfactory explanation and the overpayment proves to be genuine arrangements can then be made for its repayment."
I have no idea how this overpayment came about and would appreciate advice how to respond. Obviously, I would not like to trigger a tax investigation.
Many thanks in advance!