Hi, up until last year my now investment property was my principal private residence (ppr). I've since purchased another house with my wife and we now live in this one - our ppr. I claimed mortgage interest relief for about 5 years on my now investment property. I stopped claiming this when I started renting it out as it was no longer my ppr. Can my wife, or both of us, now claim mortgage interest relief on our new (although second hand) house?