I have been asked to repay tax by HMRC on the grounds that I had not included ''underpaid tax for earlier years in your tax code for 2011/12''
My tax affairs are extremely simple, although I do have two employments. I always submit SA forms on time etc. Nowhere have I been notified that I have any 'underpaid tax in my PAYE code', whatever that may mean.
I had always thought that any 'inaccuracies' in my PAYE code during the tax year would be corrected at the end of the year when I submit my SA.
Can anyone put me wise, please?