NC as going to give lots of detail. Long sorry.
My boyfriend and I have been discussing moving in together but had a chat yesterday where he thinks I am asking too much. I have been in a cocklodger situation previously so worried I am being too harsh. Neither of us have children.
My situation:
I own a nice 3 bed house in a less nice area of an expensive (not London) city. My income is £2000 salary per month shortly rising to £2,600 following promotion. I have always had lodgers and my current one pays £400 a month all inclusive - slightly below market rent. My mortgage is £600 a month and all my household bills (including mortgage, excluding car and groceries) comes to £950 a month.
BF has a salary of £1,800 per month shortly rising to £1,900. He pays rent of £625 and his household bills total £850 each month. He has some money saved in a help to buy ISA and could right now buy a tiny flat in a similar area to me.
He doesn't want to move in while I have a lodger so will wait until current one (a mate with financial troubles) can afford to move out. If he wasn't moving in, I would get another lodger and charge £450 a month. We will live in my house alone and once we know living together works, buy something together (tenants in common to protect my much higher equity).
I want him to pay £400 a month contribution essentially to replace the lost lodger income. This will cover all bills and then we will split food etc ad hoc (me probably paying more as I earn more). He saves an extra £450 a month compared to now which he can put toward his help to buy.
He feels it is unfair to ask him to pay toward my mortgage and should only pay half of the monthly utility bills (about £175) plus spilt food bills and housework etc. When we buy together, then he would contribute toward the mortgage. He doesn't want to feel like I am profiting off him or treating him like a lodger. Especially as I don't 'need' the money with my payrise and earn more than him.
YANBU - He should pay £400
YABU - he should pay less