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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

AIBU to refuse moving in if asked to pay half his mortgage?

965 replies

HolyCheeses · 19/04/2026 23:45

I have a small house here which I am renovating alone with a view to then downsize slightly leaving me with a smaller mortgage (I have 3 adult 18+ DC all at uni/jobs living independently)

My Boyfriend and I have been together for 4 years

Hes almost finishing renovating a huge property with an annexe for his parents. Hes asked me to move and has asked me to be very involved with decision making for the home -

Hes 8 weeks away from being able to move back in and has been asking about planning and pushing for me to give him a date for relocation . I told him we’d need to discuss finances first. His idea of fair varies massively from mine.

He has proposed we split the bills down the middle 50:50 and the same for his mortgage.

They would leave me worse off than where I am now. Having to find and settle into a new job and location is a risk as it is and I’d have no disposable income after such huge living costs

He earns twice what I do and I don’t feel comfortable paying towards a mortgage of a property I’d not have a stake in subsidising his asset whilst diminishing my financial stability.

he cannot see my point of view at all and has told me I’d pay the same in rent in a flat but that’s not the point - I’d be better off where I am

i am being unreasonable- he’s seems bereft and stunned I’m not leaping at the chance to move next month!??

OP posts:
Itiswhysofew · 20/04/2026 10:26

Big houses are overrated. Leave him to wallow in his space. And to finance it!

I think it's best for you to continue with your own plans. You'd probably regret not doing so. Who knows what'll come your wayDaffodil

VickyEadieofThigh · 20/04/2026 10:29

shuddacuddadidnt · 20/04/2026 09:47

Does the annexe have a separate address/separate utilities account? If not, a 50/50 split could mean OP contributing to partner's parents bills too eg council tax should be a 3 way split etc.
Walk away OP.

That's exactly what I was just thinking. Even just paying 50% of the bills is very likely to prove much more expensive for the OP.

WildLeader · 20/04/2026 10:31

I can see you’ve decided to call it a day, and I think that’s wise.

not only is he expecting you to make your own situation worse off financially than it currently is , it is at a huge risk to you in terms of work/life etc. I see he’s said “oh I’ll have to get a lodger in” means he IS relying on your money to fund this. The parents moving into the annexe… wonder how much they’re putting in? Also guess who’s going to be the one lumped with their care? You, young muffins! That’s who.

the other thing I seriously worry about happening if you move in is that what’s remaining of the mask he’s wearing would drop and you’d be ruined and trapped.

no. This isn’t the one. He showed you who he is with the holidays, now he’s screaming at the top of his voice what kind of man he is.

you don’t need him to escape your past. You can do this all by yourself.

Luckyingame · 20/04/2026 10:35

You are not married.
NEVER subsidise this man's mortgage and don't let him take you for a fool, the cunning bastard.
If the two of you were married, it might sound different.
Stay as you are, protect your assets.

DuckbilledSplatterPuff · 20/04/2026 10:35

FourOfUs4 · 20/04/2026 10:17

He’s planning to also move his parents in, how much of his mortgage is he going to ask them to pay. I think this is an unrealistic demand, I would only agree to pay if he put the property in your name as well, even if it means paying what he did in deposit. But TBH I wouldn’t do that either, it’ll make if a nightmare if you break up. If he truly wants to be with you he’d agree to you paying the cost of half a bedroom, which is all you’d get, if he’s not willing to do that then he doesn’t want to be with you enough and I’d end the relationship.

Your situation sounds similar to my sisters, she moved into a house his rich parents owned, after moving to his country and expected her to pay half the mortgage and help fund renovations. Everyone warned her, she didn’t listen, she then married and had kids with him and he has spent their entire relationship financially manipulating her and controlling her, she’s talked about leaving for decades but can’t afford to. It’s made her life miserable. This attitude is a big red flag and you shouldn’t ignore that because it will not get better. I have another friend who’s partner, through his manipulation, managed to convince her to sell her property then stole all her savings, she’s now 55 with nothing. The fact he’s putting pressure on you to accept sounds like he’s gaslighting you, which is also a big red flag. Be careful with this one, protect yourself and your assets and don’t get talked into anything that makes you feel uncomfortable. There is a huge number of 50 women suffering homelessness right now and a lot of it is because of the men they had in their lives.

Yes. That is an extra consideration.

You don't even know if he owns his house outright or has 50% share with his parents, I find it strange that he's never mentioned this, so even if you did agree that you would be included in the mortgage it might only be 25%.

Also, it's not just the two of you involved.. if you did marry or agreed to be on the mortgage - and subsequently wanted to split - it would be a more complicated sale as he'd need to rehome his parents too and maybe they would have to agree to sell as well. The problem with thinking over these possibilities is that they may not exist at all and its worries about nothing, but you've never had the information to know if they would or not. That's a huge amount you have been expected to take on trust.

Loulou4022 · 20/04/2026 10:36

Absolutely not 50:50! It needs to be based on income and then pro rata’d. Hubs and I have a 70:30 split based on our differing incomes

CopeNorth · 20/04/2026 10:37

HolyCheeses · 19/04/2026 23:53

That’s what I’m starting to think

he’s baffled I’d prefer to stay in my little terrace rather than his big detached mansion- so I can afford to actually live !?

When my now husband moved in with me he was happy to pay half my mortgage. However, paying that was about half of what he was actually paying in rent so he was better off and it probably felt reasonable to him. Neither of us really knew for certain what was fair. We’ve since got married so it probably makes little difference now.

That said what your partner is proposing offers little benefit to you but lots of risks re relocation etc. I suppose this is like anything - you chose what you spend your money on. Lots of people would chose to have more reasonable outgoings to have more disposable income and flexibility. I don’t think you’re unreasonable at all. If you were married you’d probably pool resources - paying 50:50 towards something you don’t want or need feels like you’re just funding his asset. Also the monthly cost of a mortgage is a pretty abstract measure anyway - much depends on the interest rate, length and down payment. The upshot for the owner is they’re paying off the capital. You’re just paying to live there and unless you actually get married you’d have a tricky route to proving any beneficial interest if you broke up.

OlderGlaswegianLivingInDevon · 20/04/2026 10:38

he can't actually afford the mortgage can he ?

how much have his parents paid i.e. the deposit etc and is the mortgage in their name too
are their names of the title deeds too

and if you don't move in he would need to get a lodger ?!!!

he has chosen a property too large and too expensive for him to afford.

and

if you were to get married, then divorced you would be entitled to % of the house - how would he afford that ? would he have to throw his parents out ? if he needed to sell the house...

it does rather sound like you are a form of income for him rather than anything else ?

Monty36 · 20/04/2026 10:40

If you are not retaining ownership of your house that you currently have then don’t move in if you are not on the title deeds of the new property.

It is either your shared property or his. If it is his then what does he think he is doing asking you to give up your financial security to move in ? No. Even if he says he will pay the full mortgage, no.

Marriage or title deeds.
Common law marriage gives you no rights in law ( or very few).

ArtAngel · 20/04/2026 10:40

You two have different objectives for your assets and future. Yours is your cast iron security and affordability, achieved by downsizing and cutting your outlay.

His is upsizing, expanding, investing to do so, and housing his parents.

From his pov he is looking at huge capital outlay and investment, making space for your Dc , you and everyone. And probably sees your retention of your asset while living in his house as you having your (his ) cake and eating it.

And if you were to increase your expenditure to live in his house you will have less money with which to support your Dc at Uni and less money to go on holiday with him - which frustrates him !

It’s a shame this all got so far without more detailed agreement and mutual understanding.

In the end your absolute security is your foundation.

ArtAngel · 20/04/2026 10:41

Duplicate post

whattheysay · 20/04/2026 10:42

What has you renting a flat got to do with anything? You don’t want or need to rent a flat nor so him comparing half the mortgage to the cost of you renting a flat is pointless.
Did you discuss you renting a flat in the area?

askmenow · 20/04/2026 10:43

HolyCheeses · 20/04/2026 06:43

I had mentioned to him that there would be delays in me moving as I would need to prepare and sell my house and he seemed baffled and despondent and told me he’d have to get a lodger then-

Bear in mind I knew nothing of his finance plans u til very recently. I had concerns about moving so far away previously but none of this makes it an attractive proposal to me. I’ve asked for months what would be expected of me financially and how would the responsibility be divvied up and he kept being evasive until I told him not to include me in any plans as I could agree to such huge risk on a punt

Then the spreadsheets came out !

OMG 😂😂 before I turn another page tell me your contributions are factored in.
“A nurse with a purse”
Never a truer word was said. Run!

Live in your perfect little corner of the world, your own home to gather breath, and then relocate away from your toxic exh at your leisure/pace 💐

southcoastsammy · 20/04/2026 10:43

HolyCheeses · 19/04/2026 23:55

I think I should lay living costs and utilities but proportional to our salaries

him 70%
me 30%

50:50 would leave me with nothing after deductions - why would anyone agree to that ?

DW earns 3 x my wage and we pay into an account proportionally because of that AND the house is half mine. I wouldn’t pay 50% of a mortgage on a house I had no claim on.
If you’re good where you are then just stay! Tell him you can’t afford half and you’d be much worse off.
He can get an actual lodger if he needs ££ for the mortgage.

WotthehellMehitabel · 20/04/2026 10:46

You said he'd kept you in the dark about his financial arrangements for this for a long time? This sounds like Financial Abuse all over again to me...

I also bet that things like a cleaner would come off that spreadsheet as 'too expensive' the moment he had you trapped in the house with no job and his ageing parents next door...

Don't be upset that you didn't see this sooner, be glad you saw it now, when you can still act to protect yourself. 🤗

Geminispark · 20/04/2026 10:51

I would sell your house, invest the money, move in with him and only agree to pay a proportion of the bills but sign a waiver to any rights over his home.
if he’s not ok with that, don’t move in.

chaosmaker · 20/04/2026 10:54

@HolyCheeses sounds like you made the right decision There are always other men out there.Don't think I could live with my current partner of 12 years. I'd kill him!

Mumandcarer80 · 20/04/2026 10:58

He’s a CF it would be the end of the relationship for me. Don’t move in with this man.

GertrudePerkinsPaperyThing · 20/04/2026 10:58

He’s probably panicking too thinking not only will he have to pay for his own asset, rather than having you do it (or half of it) but also “but I can’t have my parents live with me without a woman to act as a buffer/ do the emotional labour/ caring. That can’t be left to me!”

TwistedWonder · 20/04/2026 11:02

HolyCheeses · 20/04/2026 08:23

I’d been having these feelings for a few months

I’m not going to waste any more time - I’ve already lost 22 years to a shit marriage.

id certainly not make a snap decision about anything these days let alone based on what some people I don’t know say.

it is possible to love someone and know that it won’t work for ME

I think you to need to end it OP and be prepared for emotional blackmail about how he’s done it all for you, can’t afford it on his own etc etc

Imdunfer · 20/04/2026 11:04

HolyCheeses · 19/04/2026 23:50

Am I being unreasonable here? 😩

You are so far from being unreasonable that for me his attitude would be enough alarm bells to end this relationship.

His demands are unreal.

KimberleyClark · 20/04/2026 11:07

Never pay towards a mortgage if the property isn’t in your name.

Imdunfer · 20/04/2026 11:07

HolyCheeses · 20/04/2026 07:55

No there wouldn’t be much left after maintenance and bills are paid and tax

i don’t want to rent it out as it might not be easy to go back to if I have tenants in place and I’d also have to find a job again

I'm firmly set on ending the relationship to be honest with you.

I like what op said about scaling down and preparing for retirement rather than taking on more debt

Agree entirely

Good decision!

TheDenimPoet · 20/04/2026 11:12

Pinkissmart · 19/04/2026 23:53

Yes, she should jump at the chance to marry a man who wants to take advantage of her financially 🤦‍♀️

They meant because if they were married she would then own half the house. It would be protection.

Rewis · 20/04/2026 11:12

You've actively involved in the renovation, your children have given opinions about their rooms but you had not discussed anything about finances? And he can't actually afford this house?

I feel like when yiu move in to someone elses house that they own there is no right answer on how to split the costs. Cause on the one hand it is not fair to only split utilities but also not fair to pay mortgage etc. But one thing that I feel is non-negotiable is that it should be a better deal for everyone involved. Sounds like you won't benefit from this arrangement.

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