I am in the process of house purchase with partner of 5 years. We have lived together for several years but have decided to finally buy together. I have stayed in his current home contributing to half of the bills/mortgage for around 3 years. My partner has a larger deposit due to large increase in equity on his current home so the split is probably 75% his vs 25% mine.
We are discussing finances and though we have been advised by solicitor to remain as joint tenants, he wants to write up a cohabitation agreement to protect his deposit and going forward we will split bills/expenses proportionally to income to be left with same disposable each (I am the higher earner now so I will contribute a lot more monthly). We have spoken about marriage which is really important to me and it worries me that this agreement suggests he might not thinking about the future as being a married couple.
I am just wondering if this sounds reasonable when I'll be paying more for monthly costs which won't be accounted for and can't really be written up in the agreement as our salaries will change. I do understand why he would want to protect his deposit for the worst case scenario but just want an opinion on how others have managed this situation?