For the vast majority of individuals capital gain arising on the sale of their main home will be exempt from CGT due to PRR, also commonly referred to as Principal Private Residence Relief (PPR). 

 Whilst large numbers of individuals rely on this relief when selling their home, it is far from well understood. This is despite it being one of the most valuable tax reliefs in the UK, with the latest statistics estimating that it cost the Treasury around £31.5bn in the 2023/24 tax year. The lack of understanding is largely due to the rules being difficult to follow, but in broad terms the relief will typically apply in full when: