So my dad has had a property that consists of 2 shops and a flat above, he use to run the postoffice up until 13 years ago and use to live in the flat above, then he moved from there and has rented the whole block out for the last 14 years, however for some reason he has not filed a self assessment for this period.
We are now thinking we should go to HMRC and get up to date, the property (flat and 2 shops) is registered in 4 names since 2003. how far back should we file the returns too, some people have advised 4 years, some 6 and some the full 14 years. Not sure on the penalties and charges.
Hes never had a reminder to fill in a self assesment, so has never thought to do one.
Any advice would be welcome, not sure the best thing to do.