I have recently discovered that I am incurring fines and interest on self assessment tax returns that were not completed for tax years ending 2014, 2015 and 2016. My accountant at the time was suppose to prepare and file these for me, however he didn't.
I do not remember receiving any reminders or letters about the penalties.
I have phoned the helpline, however received very little direction as to what to do apart from pay the fines and interest.
As it is over 7 years ago, I have little/no documents left for these periods.
Do I still have to file tax returns for these periods? Can I appeal the fines/interest?