I have recently split up with my ex-partner (we were not married), and I decided to move out of our house. We had a joint mortgage on the property. I decided to do a transfer of equity for £10,000 because my partner had put down the initial deposit on the house, and I didn't want to ask for any of that as I don't think that's right when it wasn't mine to begin with. My name has since been removed from the mortgage and from the land registry document. I had lived in the house ever since we bought it, and it was my main and only residence. I have seen some information online about capital gains tax (CGT) and now I am very worried that I might be liable. 

Arthur Weller replies:  

From what you have written, it appears that until now, you owned half of the house, and now you have transferred your half to your ex-partner. If you had not lived in the house since you acquired your half as your only or main residence, this transfer would have triggered CGT. But since you did, you are eligible for principal private residence (PPR) relief, and you have no CGT to pay. You don't even need to report it on your self-assessment tax return because the entire gain is covered by PPR relief.