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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

AIBU to let my adult nephew move in after rent rise from my sister?

677 replies

YearsOfLife · 18/09/2026 08:38

My nephew is 24 and has been working full time for about a year after finishing university. When he first started working full time, my sister was charging him £500 per month to live with her and her partner. She has now told him he needs to pay £800 per month which he isn’t happy about as he is trying to save for a house deposit as well as having other costs and wanting to socialise. He spends a lot of time at work or with his girlfriend and friends so I do think £800 is a lot.

Our children are similar ages and my nephew has asked if he could live with us, paying £400 per month. We are happy for him to live here but it is causing a huge problem with my sister and her partner. They don’t think we should allow him to stay with us.

On the one hand I can see why my sister thinks we shouldn’t get involved, but on the other, he’s our nephew and an adult and if we’re happy for him to live here, he should be able to.

My sister has accused us of trying to make money from him which is untrue as we don’t charge our own children anything to live here and IF we take anything from our nephew, it won’t be £400 per month. This isn’t about money for us. I agree with my nephew that £800 is too much and want him to be able to have a life and save like my own children.

AIBU to say he can live here?

OP posts:
hattie43 · 19/09/2026 07:56

£800 is a disgusting amount to ask from her son. Your sister is only concerned about losing money . Your poor nephew .

VioletsTale · 19/09/2026 07:50

Franjipanl8r · 19/09/2026 06:26

She’s trying to force him to become an independent adult but you’re undoing that. You could offer him 6 months while he finds something else, but don’t un do her parenting efforts here. IMO a 24 year old shouldn’t be living at home at all.

Then why object at him moving out and accuse OP of trying to make money off him?

Somethinggg · 19/09/2026 07:48

Franjipanl8r · 19/09/2026 06:26

She’s trying to force him to become an independent adult but you’re undoing that. You could offer him 6 months while he finds something else, but don’t un do her parenting efforts here. IMO a 24 year old shouldn’t be living at home at all.

No, she's delaying him becoming an independent adult.

He wants to buy a place, and so needs a deposit. He can save for this much more quickly being charged £400 per month at OPs than £800 at his mum's. Yet she wants him to remain in his childhood home, not independent, and make it harder for him to save up.

You have this completely arse about face.

Oriunda · 19/09/2026 07:35

My divorcing parents sold our house when I was 21, in a low paid job, and with just a few months' notice. I ended up scrabbling around and joined with a friend to buy a flat with a disastrous 100% mortgage (i had no savings and no deposit). These were the 80s, with spiralling 10%+ interest rates. I lived day to day off credit cards, and it took me years to pay them off.

Asking £800/m is just dreadful. So I thank you for looking out for your nephew. I had dreadful parents; it's great your nephew had you on his side.o

Birdnoises · 19/09/2026 07:34

Definitely help him. Like you say, he is doing the right thing and your sister is not.

it’s really hard for young people to buy a house nowadays without some sort of help.

Can’t believe your sister and her partner earn over 140k and are charging him like that!

MandemChickenShop · 19/09/2026 07:15

absolutely fine, nice of you. your sister and let's face it probably her partner are f wits

OhBettyCalmDown · 19/09/2026 07:14

I’d let him stay. 800 a month is ridiculous for a parent to charge a child for a room they’ve been living in for free for 18 years. She’s absolutely fine to increase the amount to £800 but as an adult he’s also entitled to look for alternative accommodation.

TheBlueKoala · 19/09/2026 07:12

@YearsOfLife Take him in if your children are ok with it. Your sister is taking the piss.

thepariscrimefiles · 19/09/2026 07:10

RetiredFromExplaining · 19/09/2026 00:41

But he's not covering his living expenses. He's living on cheap or no rent. Family are paying for his expenses. He's a freeloader on a terrific salary.

If his contribution covers the additional cost of utilities and the food he eats, he isn't freeloading. He offered £400 which would easily cover his share of the bills (gas/electricity, broadband, water, council tax, food). If OP wishes to charge him less that's up to her.

His mum sounds greedy. People are saying that she put his rent up to £800 in order to make him leave. If that were the case, she wouldn't be cross with OP for offering him a home with her family.

TurtleHeadling · 19/09/2026 06:57

YearsOfLife · 18/09/2026 18:04

He has a lot more than £12k as he has saved from working part time in term time at uni, full time in holidays and he got paid for a placement year for his uni course. He also inherited a small amount of money when his father died.

If he stays with us I’m not going to be telling him what he has to save. He’s a responsible adult and has saved so far without being told to. He is on a graduate scheme and over the next few years his wage will increase significantly if all goes to plan. He plans to buy with his girlfriend who is also saving but he’ll be able to buy alone if not.

We are in no rush to get him out the door if he stays with us. Our oldest left home at 29 with a huge house deposit. I hope the others do the same and they are all on track to. We have plenty of space and are happy for them to be here.

People seem to think young people are all wasting money and have no plans. My experience of young people is that they’re very focused on their careers, saving money and buying a house because they know the difficulties they’re facing with increasing costs of everything.

You sound like a lovely aunty. If my sister put my nieces or nephews in the same position I would do the same as you, especially as your nephew sounds like a nice young man with his head screwed on.
I wouldn’t care about the relationship with my sister over my nephew in this instance, she sounds very unreasonable. He will remember this for the rest of his life, i’m sure he’ll be very grateful and it won’t be forever. If you can afford to and have the space then go for it!

Pollymollydolly · 19/09/2026 06:52

Franjipanl8r · 19/09/2026 06:26

She’s trying to force him to become an independent adult but you’re undoing that. You could offer him 6 months while he finds something else, but don’t un do her parenting efforts here. IMO a 24 year old shouldn’t be living at home at all.

Don’t be ridiculous! The op has described her nephew and he is very clearly a responsible adult. It is sensible for him to live with his aunt while he continues to save for a deposit. His mother doesn’t come off well in this - she seems money grabbing and manipulative, overcharging her son and trying to stop her sister from offering alternative accommodation.

rainingsnoring · 19/09/2026 06:35

Franjipanl8r · 19/09/2026 06:26

She’s trying to force him to become an independent adult but you’re undoing that. You could offer him 6 months while he finds something else, but don’t un do her parenting efforts here. IMO a 24 year old shouldn’t be living at home at all.

How is she encouraging independence by rinsing him for money that she doesn't need. Surely she is slowing down his ability to save for his own home and therefore reducing his independence. She sounds like a terrible parent.

Why, in your opinion, should a 24 year old not be living in their parents home at all? Why does it matter to you what choices others make in this regard?

Franjipanl8r · 19/09/2026 06:26

She’s trying to force him to become an independent adult but you’re undoing that. You could offer him 6 months while he finds something else, but don’t un do her parenting efforts here. IMO a 24 year old shouldn’t be living at home at all.

EasternEcho · 19/09/2026 06:19

OP, I think it is very nice of you to help your nephew. Your sister is being unreasonable in my opinion. If there's a way to help the younger generation, especially those who are being responsible to get ahead in life, I believe we should do it. I don't undestand the mentality of parents treating their children as if they were born with a contract in hand for x number of years.

Starlight7080 · 19/09/2026 06:12

800?? For what exactly ? You have said he isnt home much . Thats madness.
She and her partner will have rent/mortgage bills to pay when he moves out anyway. So they should not rely on him to cover those things.
As for the extra due to him being in the house like electric/water/food. Its probably nowhere near 800.
He is 24 not 18 she should be happy for him to live with you. So long as he is happy and safe. That's the main thing. It sounds more like she doesn't want to lose the money. Not him.

EvieBB · 19/09/2026 05:15

HouseBee · 18/09/2026 21:35

My own ds is in a house share similar set up than what the OP’s nephew has at his mum (a bedroom, electricity, internet etc… and I assume food). He is spending about £800 a month on that.
I feel changing your child that much is just too much. Yes it’s about ‘normal rates’ vs the market but who is changimg market rates for their own DCs??

If the nephew had found a houseshare for £400 a month, the mum wouldn’t have an issue. Why is it a problem with the OP?
The only reason I can think about is because it’s highlighting how unfair she has been tbh.

And yes it’s might well upset the sister. But the OP didn’t propose. Her nephew asked. I think the suinter needs to get over it. Or lower her rent

Exactly

Poodleville · 19/09/2026 05:01

JustSayyNo · 19/09/2026 02:07

Depends if the 800 covers personal expenses too? I mean, mine have just rolled over with the family phone plan as it's cheaper, while at home they remain on our medical insurance, there are pet costs for pets they wanted and I didn't as adults, gym memberships, streaming services I wouldn't have if they didn't want them. Some of these things come off my credit card because they don't have one (which is a good thing). So the amount they pay might look high but it's actually not and none of it is just 'rent'. They live home for free.

But then just let him move out? Then any costs for housing him would disappear.

I agree 500 is not necessarily a lot, but if he doesn't want to pay 800 and can find something more affordable for him (and he has), why stand in his way?

Poodleville · 19/09/2026 04:57

Yanbu. I would still try and understand where your sister is coming from, for the sake of that relationship, but unless she can suddenly explain in a way that makes sense to you, I would go ahead and agree to him living with you all.

Given her high income, combined with her partner's average income, it doesn't sound like their household needs an £800 rent from him. He sounds responsible and pleasant so not about teaching him a lesson either.

I do wonder if her partner's influence is at play here. Possibly a childish "why should he get to live here for £400 when he earns nearly as much as me" type sentiment. Or his ego had been dented by your nephew's pay rise. Impossible to know, but I think you could gently ask your sister what her partner's thoughts on the matter are.

I think it's lovely he feels close enough to you all to even ask you about moving in. I think you've been doing something right in terms of that relationship so keep listening to your instincts.

ChilliBassy · 19/09/2026 03:01

YearsOfLife · 18/09/2026 08:38

My nephew is 24 and has been working full time for about a year after finishing university. When he first started working full time, my sister was charging him £500 per month to live with her and her partner. She has now told him he needs to pay £800 per month which he isn’t happy about as he is trying to save for a house deposit as well as having other costs and wanting to socialise. He spends a lot of time at work or with his girlfriend and friends so I do think £800 is a lot.

Our children are similar ages and my nephew has asked if he could live with us, paying £400 per month. We are happy for him to live here but it is causing a huge problem with my sister and her partner. They don’t think we should allow him to stay with us.

On the one hand I can see why my sister thinks we shouldn’t get involved, but on the other, he’s our nephew and an adult and if we’re happy for him to live here, he should be able to.

My sister has accused us of trying to make money from him which is untrue as we don’t charge our own children anything to live here and IF we take anything from our nephew, it won’t be £400 per month. This isn’t about money for us. I agree with my nephew that £800 is too much and want him to be able to have a life and save like my own children.

AIBU to say he can live here?

Your sister is angry she will be losing her cash cow/ATM. I think £500 is already disgusting - Imagine using your own child to make a profit, earn spending money, to make yourself more financially comfortable than you already are. Honestly, she's robbing her own son. This is why she's angry: No rent money = No more treats for her. £175, would be enough.

Please take your nephew in and lower the rent right down, then save it for him.

Redpaisley · 19/09/2026 02:23

whistlesandbells · 18/09/2026 19:20

Sorry. I wouldn’t get involved in this. There’s missing information - tho context is missing of your nephew’s salary and your sister’s financial position. I think £800 is a lot but perhaps it isn’t and perhaps by this stage he should be splitting the bills with the two other adults in the house. Perhaps he doesn’t save enough to make moving out into his own home feasible any time soon because he spends. Why is he offering to pay you less than he pays his mother now? At what point is a parent permitted to say to an adult, 24, you work full time so you have to pay your way?

Staying out of it is simplest.

Every question you raised is already answered by op.

JustSayyNo · 19/09/2026 02:07

PollyBell · 19/09/2026 01:58

£800 a month? Sure he should cover his own personal bills but feeding and housing a child i take as my responsibility for having them

Depends if the 800 covers personal expenses too? I mean, mine have just rolled over with the family phone plan as it's cheaper, while at home they remain on our medical insurance, there are pet costs for pets they wanted and I didn't as adults, gym memberships, streaming services I wouldn't have if they didn't want them. Some of these things come off my credit card because they don't have one (which is a good thing). So the amount they pay might look high but it's actually not and none of it is just 'rent'. They live home for free.

rainingsnoring · 19/09/2026 02:00

RetiredFromExplaining · 19/09/2026 00:37

I'm saying that young people are refusing to live independently even into their late 20s when they can actually afford it, and that is having a negative effect on society. And we as the older generation are prolonging entitlement, arrogance and dependence by letting them do so.

It's pretty clear that you have a huge chip on your about this topic, with your ageist comment about young people's entitlement and arrogance. You should really do some self reflection on why you feel like this.

As I have already said twice, the cost of housing is many multiples of what it was when you were young 30 years ago. Many young people are living with their parents longer in order to save up for a home of their own. Many parents understand this and want to help their DC in a much tougher world than they grew up in. Older generations were much more fortunate. Apart from this, there is a very clear trend of multi generational living amongst lower earners, what was previously called 'the working class'. I've seen this happen in the UK in the last 10 years or so. In addition, you seem to have a lack of awareness of other cultures, where it is entirely normal to have 3 or even 4 generations living together under one roof to help and support each other. Are we dismissing all these people from other cultures and countries as entitled and arrogant and spongers too?

PollyBell · 19/09/2026 01:58

JustSayyNo · 19/09/2026 01:45

If they're covering their expenses there'd be nothing to keep for yourself as it would all be going on bills.

£800 a month? Sure he should cover his own personal bills but feeding and housing a child i take as my responsibility for having them

JustSayyNo · 19/09/2026 01:45

PollyBell · 19/09/2026 01:43

If i felt the need to teach my child to be an adult ii would give them 2 options save a certain amount themselves or give it to me and i would save it for them

There is no reaon to charge them and keep the money yourself

If they're covering their expenses there'd be nothing to keep for yourself as it would all be going on bills.

PollyBell · 19/09/2026 01:43

If i felt the need to teach my child to be an adult ii would give them 2 options save a certain amount themselves or give it to me and i would save it for them

There is no reaon to charge them and keep the money yourself