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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

Blended family finances

263 replies

PersephoneMidnight · 28/07/2026 01:15

Regular user who has name changed. I am in the process of purchasing my first house with my partner of 10 years. I have a large down payment which consists of a combination of my own savings and an inheritance from my grandfather who died 2 years ago. It’s about half the purchase price, my partner is also contributing to the deposit but only has around £50k. We are disagreeing about how the house will be owned. He is pushing for joint tenants 50/50 whereas I want to be tenants in common with our deposits ringfenced. For context He is 39 earning 52k, he has two teenage daughters who live with us 50% of the week. I am 32 earning 75k with no dependents. We currently rent and split everything 50/50 but I do pay for our holidays, takeaways and days out. I also treat my step daughters with clothes, makeup and give them pocket money £20 a week each and pay for the phones. My partner does pay his ex wife CM £150 a week and covers the kids extra curriculars as she is a low earner.

He thinks I’m being selfish by not agreeing to a joint tenancy and sharing finances after 10 years. I think he is being unreasonable to expect me to basically gift him half of my grandfathers money. We are not married and never will be that’s my choice, I also do not want children. We have never had a joint account or shared finances as he has children and expenses that I do not.

I’m aware that mumsnet normally tells people to have joint finances etc but I feel really uncomfortable about this. I do love my partner and step daughters and they are included in my will but this seems a step too far, aibu?

OP posts:
winter8090 · 28/07/2026 06:20

If not, it’s entirely reasonable that you get your respective deposits back before any equity is split in the event if separation. I would not proceed unless it’s on that basis.

CatherinedeBourgh · 28/07/2026 06:12

He's the one who's not trusting the longevity of your relationship. So long as you are together, the way you own the house makes no difference. It's if you split up that it does. And if you do, he wants to make sure he walks away with half your assets.

Don't let him.

winter8090 · 28/07/2026 06:09

Could you match his deposit and invest the rest of your money?

Notcominhomenow · 28/07/2026 06:08

Do not buy with this man

WyattCallow · 28/07/2026 06:08

Duvetdayneeded · 28/07/2026 05:50

You’re being taken for a ride!!! He saw you coming… you’re being naive still. Protect your money and stop funding his lifestyle or walk away.

My DW had a complete personality change after we got married. I went into everything 50/50 like the marriage service says. I started with half the value of our first house now DW jointly owns half. This makes things tricky. She thinks her mothers legacy is "her money" whereas in reality (?) any money that comes in is pooled and belongs to both of us. We have no blended family issues. In your situation OP I am with you - ring fence the contributions to your house. Good luck.

Bristolandlazy · 28/07/2026 06:07

Selfish, yes, good. Be selfish, you should be looking out for your interests.

Betadelta · 28/07/2026 06:07

I don't agree with the "he saw you coming" comments after 10 years together, but I do agree you should ring fence your deposit money. Stay firm OP.

LoftyPlumLion · 28/07/2026 06:00

I do think the cynical he saw you coming is a tad over the top, but explain it's a difficult conversation but you have a red line. Be empathetic and explain there are a huge number of forces in the world that could break you up.

If he has a red line on his side then the cynical he saw you coming might be right.

LoftyPlumLion · 28/07/2026 05:58

Hold your nerve. You are basically just ring fencing in the event of a break up.

I'm in your side.

Any inputs to house are ring fenced.
Then mortgage is paid 50/50

Stress that this is just a mitigation strategy in case of a break up

So on event of break up.

Sell house for X
Both partners gets back their inputs
Any surplus then divided equally
Any costs divided equally. Hopefully over all there is a surplus.

Any day to day living expenses are entirely separate.

Your partner is going to want to retire before you too.

That's how me and DP have done it. But I'm sure there are other models people can use that work for them.

Duvetdayneeded · 28/07/2026 05:50

You’re being taken for a ride!!! He saw you coming… you’re being naive still. Protect your money and stop funding his lifestyle or walk away.

hattie43 · 28/07/2026 05:50

It’s not a great basis for a relationship. You’re young why saddle yourself with someone with kids , it’s all so messy and complicated .

bluebeck · 28/07/2026 05:47

PersephoneMidnight · 28/07/2026 04:37

I think he genuinely feels a bit hurt that I don’t trust him or the longevity of our relationship. However I work in accounting I’m not naive to the possibility that the relationship may breakdown in future (I hope not) and I want to protect my inheritance as my Grandfather worked very hard to leave me that money.

Outside of this our relationship is very positive, we share domestic duties and enjoy spending time together both as a couple and family. I think I am a naturally generous person and I do share the benefit of my comparative wealth with him and my step daughters. We have a lovely relationship but it’s more like an older sister or aunt as there is only 16 years between me and the eldest.

I don’t want to drop out of this purchase, it has taken a lot for us to get here and we have already spent quite a bit of money on legal fees, surveys etc.

Google sunk cost fallacy.

You are in over your head. This man saw you coming.

TenTenTenAgain · 28/07/2026 05:42

@CamillaMcCauley absolutely! The op is giving a lot of herself to this relationship and the partner appears to be getting increasingly greedy.

CamillaMcCauley · 28/07/2026 05:40

TenTenTenAgain · 28/07/2026 05:35

I agree with pps. In a situation like this (no kids together , 2 kids from past relationship) I think that each adult should leave the relationship with the finances they contributed. He's already benefiting by getting to live in and part own a larger/nicer house. And also by having your domestic labour available. If he can't be happy with what you're offering I'd be very concerned about his motives.

And also the direct financial contributions she already makes to his kids!!

TenTenTenAgain · 28/07/2026 05:35

I agree with pps. In a situation like this (no kids together , 2 kids from past relationship) I think that each adult should leave the relationship with the finances they contributed. He's already benefiting by getting to live in and part own a larger/nicer house. And also by having your domestic labour available. If he can't be happy with what you're offering I'd be very concerned about his motives.

bluebeck · 28/07/2026 05:31

Do not, I repeat, do not buy with him.

🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨

OnlyMabelInTheBuilding · 28/07/2026 05:29

God, no way! I’d run from him completely, tbh. He’s seen you coming.

AndImVictoriaMalcolm · 28/07/2026 05:28

Being called selfish in this situation would honestly make me rethink our entire relationship tbh. Based on what you’ve said here, you’re clearly not like that.

Tel12 · 28/07/2026 05:27

Did your partner become more interested in buying a property following your inheritance? Of course you must protect your deposit. His response will tell you all you need to know.

CamillaMcCauley · 28/07/2026 05:23

Under absolutely no circumstances agree to this. You’d be financing him and his dependents in so many ways. Please do not fall for the pressure created by the existing money and time you’ve spent.

In all honesty, if a man asked this of me I’d consider it such a red flag I’d end the relationship, especially considering the stage of proceedings where you are at. Users really love to leave big asks to the last minute so that you will be swayed by a sense of urgency.

My ex did this to me, proposed a really unfair sharing of house investment when I was pregnant with our second child and was putting in a much larger deposit. Thank god I ringfenced my share as I would be fucked now if I hadn’t.

UpDownAllAround1 · 28/07/2026 05:22

Let him feel hurt. Don’t do
it

Cakeandcardio · 28/07/2026 05:18

I am so pro joint accounts and cannot understand why married couples with children would not have one.

But in your case, no. Separate finances all the way and deposits ringfenced. Of course he thinks you are selfish - because your choices are not helping him!! He is actually being selfish.

TwinklyRoseTurtle · 28/07/2026 05:14

Haven’t rtft could you not also just match his deposit-put 50k in too and own 50/50? That way less risk for you.

Brainworm · 28/07/2026 05:10

You could challenge him on his level of trust - if he has faith in the relationship and in you, he would regard being tenants simply something expressed on paper but never impacting on your lives. If you stay together, what difference does it make, if you don’t, does he think he is entitled to half of your wealth - and if so, why?

Perhaps something to think about, that may make him feel better, could be reassuring him that you will leave your share in the house to him if you die whilst together. A factor that might be bothering him could be losing the his and his daughters’ home if you unexpectedly died. Even if he couldn’t afford the mortgage payments on his own, or any inheritance tax owing from inheriting your share, the additional funds might make the necessary downsizing less drastic.

Sensiblesal · 28/07/2026 05:07

definitely do not buy unless its as you propose and your inheritance is ring fenced.

on a morbid note, on the basis you stay together, whats the plan for your assets who will inherit your partner? What if he goes first?

Yes in a partnership everything should be shared , whats mine is yours etc, you are doing your fair share with the bills.

interesting how slight changes to your situation would invoke different responses. If it was reversed, you would deffo be told not to accept what you propose

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