I (wife) have owned my house for 8 years. For the last 6 years my partner then husband (married 3 years ago) moved in and helped with payments. Was always 50 / 50 as we both worked full time. We are now separating. We have no joint children. Is he owed everything he put into the mortgage over 6 years after separation (property settlement)? So then essentially live rent free for past 6 years? Nothing has actually been paid off mortgage in all this time as we added on to the mortgage to buy things. The mortgage is now back to where it was 6 years ago. He feels he is owed half of all mortgage payments for the 6 years. (at least 50k) Which I will need to redraw and increase the mortgage to repay him, leaving me with a mortgage 50k higher.