<prompt> Human: Hey everyone !I have a question and I cant find clear answers. Ive look on the internet without success I guess Im not using the right key words ? so Im turning to you : So here is the situation :My GF and I live in two different cities hundred of kilometers apart. My GF lives in her house and I rent a small apartment. Im about to change job and move in with her. Weve been together for about 1 year. We plan to marry, but we are not there yet.My question is : how should we go about splitting housing expenses and me paying rent ?Obviously, electricity, internet, food, etc. will be paid 50-50. But, what about mortgage, taxes, home reparations, home improvements ? The house is hers and when she will sell, all the money will be hers too. I dont own the house and I dont want to.So, what kind of arrangement would be fair ? I dont think it is fair if I pay 50 of everything mortgage, taxes, reparations, improvement, etc. since I own 0 of it and she owns 100 of it. But at the same time, it would be unfair if I didnt pay my part too. Any guidelines ? Insights ?P.S. When changing job, I will most likely make more money than her probably twice more. We plan on marrying and having kids, so our finances will be all mingled together. And we will live in a low cost of living area and there is not a big difference between paying 50-50 or 30-70 or whatever else. So, in the big scheme of things, I dont think it really matters...but still...Thanks !Edit : thanks everyone ! Paying for a rent that would be typical for that house comes close of paying 50-50 on mortgage, insurance and taxes. But now, I can see why it is fair given that she also owns the risk. So, yeah, problem solved !  <response>: How to split cost when spouse owns the housefollowed immediately by My GF and I live in two different citiesSo I made some popcorn and waited to see which of you had the spouse. But, as it worked out, you just want to have an accounting here. She would pay all of the house and mortgage costs, you could contribute to household expenses at a rate consistent with fair rent to her, in essence. Thats up to you two to decide. 