Back in 2018 I worked for a grand total of two weeks (part time) as a self employed consultant via a personal service company. Received fees of around £3k. I'm rubbish with tax etc so got an accountant to sort it all for me - so far as I was aware everything was sorted, all VAT and corporation tax paid etc. Ever since I have worked as a PAYE employee - self employment was not for me!
Now I have just received a letter from HMRC stating that they believe I have underpaid income tax and NI to my employees(?) through my ltd company, and now owe them £112,000! Payable immediately! Logically I know this is a mistake of some sort, but it's still a scary letter to open - and how could they mess up quite so badly?? Has anyone else had experience of this?