I have been approached by a client who was self employed between Sept 2008 and Aug 2009. HMRC have never been notified, and they do not know anything about it. Client has just decided that he cannot sleep anyone more without getting things sorted.
What is the best approach with HMRC - form CWF1 or SA1 ?
What are the likely levels of penalties - bearing in mind he is now making full disclosure and is beinging his affairs up to date, unprompted by HMRC.