I’d be grateful for some advice please.
I’ve used the same local accountant for a few years. Small town practice. They filled my tax return as normal last year 24/25 and I paid the tax due. However when I filed this year HMRC flagged a £1k penalty due to unpaid “tax on account”. I’m PAYE but I did have some inheritance (investment shares so had to pay tax on these) last year. I’ve never paid tax on account before so it wasn’t on my radar. Accountant says they “didn’t realise” I should have done this as less than 80% of my total tax had already been collected at source. They asked if they should write to HMRC (to see if this penalty can be waived - the inheritance was a one off obviously! I suspect I know the response!) but is this wasting time while penalty goes up? Was this mess up on the part of the accountant? Or my fault for not checking? I go to them for professional advice and this rule seems like one they should know? Many thanks in advance.