- you have one home and you’ve lived in it as your main home for all the time you’ve owned it
- you haven’t let part of it out - this doesn’t include having a single lodger
- you haven’t used part of it for business only
- the grounds, including all buildings, are less than 5,000 square metres (just over an acre) in total
- you didn’t buy it just to make a gain
You don’t need to do anything. You’ll automatically get a tax relief called Private Residence Relief.
If you don’t meet all these criteria you may have to pay some Capital Gains Tax.
Married couples and civil partners can only count one property as their main home at any one time.
The rules are different if you sell property that’s not your home.