Please or to access all these features

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:
HollyBobby · 19/09/2026 22:21

YearsOfLife · 19/09/2026 09:46

Our nephew stayed here last night and is moving in with us properly today. I tried to talk to my sister yesterday but she didn’t want to discuss it, then when my nephew got home from work yesterday, she said he could pay £750 per month but he no. She told him if he is leaving then she wants him out by the end of the weekend and she wants everything gone. He came with a car full of stuff last night and my husband is going to help him to get the rest this morning as she wants him to take everything. I think she is doing it all wrong but I’m staying quiet as it’s his mum. I feel so sad for him, this isn’t right.

I’m so glad to read this. That poor boy. What must he be going through to be treated like that by his mother. Good for you, taking him in.

Needingarest · 19/09/2026 22:14

Pumpkindice · 19/09/2026 21:53

Because it's a commercial rate for a lodger, even in an expensive part of the country, and he has zero rights for that money. As evidenced by the fact that she kicked him out with two days notice. She can choose to charge that, he can choose not to pay it and go elsewhere.

Absolutely, he can chose to go elsewhere which is what he is doing, he’s always had the choice to go elsewhere. She doesn’t sound like a very nice person at all but that isn’t because she’s charging him standard lodger rates. I’m really happy to be only be asking for a small amount from our DC and so proud of what they have achieved and how they are working so hard and have saved up a significant deposit, however I still
strongly believe in the principle that should be my choice, not expected by adult DC

croydon15 · 19/09/2026 22:08

YearsOfLife · 18/09/2026 15:18

I’m busy trying to do other things and haven’t read all the posts!

His salary has just increased to £35k, he was on £30k until recently. She is increasing what she charges him by more than his net salary increase, which I think is awful.

Her partner apparently earns £42k. I’m not sure what my sister earns now but I know 5 years ago she was on the £100k boundary as she was looking to put extra in her pension to keep under that.

Edited

Oh my God your Dsis is earning £100k plus her DP wage and is trying to fleece her own son, she's a disgrace, she should be putting his rent money away and give it to him for a deposit.
I would definitely take him in and tell your Dsis what l think of her behaviour which is shocking.

croydon15 · 19/09/2026 21:58

rememberingthem · 18/09/2026 09:10

Your sister is being greedy and you absolutely should let your nephew stay with you. What sort of mother fleeces their own child?

This - your sister is bu, greedy and will ruin the relationship she has with her own son. In your case l would take my DN in and help him out, if your Dsis doesn't like it perhaps she can reflect why she is behaving like that towards her DS, families normally help their children not fleece them.

Pumpkindice · 19/09/2026 21:53

Needingarest · 19/09/2026 21:21

Charging £800 a month isn’t the issue at all, why shouldn’t she be charging him that? Although personally we ask for a fraction of that from our adult DC, but that should be our choice. Falling out with your son and sister just because he’s found a better deal is what makes her sound not very nice

Edited

Because it's a commercial rate for a lodger, even in an expensive part of the country, and he has zero rights for that money. As evidenced by the fact that she kicked him out with two days notice. She can choose to charge that, he can choose not to pay it and go elsewhere.

Somethinggg · 19/09/2026 21:50

Minglingpringle · 19/09/2026 21:03

It’s great that you like your nephew and want to have him live with you and everyone will enjoy it.

However, you ARE being disrespectful to your sister. You believe that her approach is wrong and you are going to swoop in and rectify it.

I also don’t think you’ve really talked it through with her fully and properly. You “don’t think” that her motivation is to encourage her son into full adulting. If you’re this involved in her business, you should KNOW. You should have listened to her. For the record, even though that may not be her actual motivation, it would be a very valid one in my opinion. You characterise it as sour grapes - parents trying to make sure their child doesn’t have a better life than them. I disagree. Every problem you solve for your child, you deprive them of the opportunity to grow, the opportunity to learn how to solve that problem themselves. If this is done repeatedly, it undermines their confidence and capability. Nobody develops all the skills of adulthood until they are separate from their parents and fully responsible for their own life - there are lots of things you don’t have to deal with until that actually happens. Yes, of course young people would like to have more disposable income and less responsibility. And it sounds lovely for him at your house. But what’s fun and what’s good for you aren’t always the same thing.

But anyway, as you say, that may well not be her motivation. Nevertheless, you have set yourself above her. You obviously consider yourself superior. You think your way of doing things is better. Yet you haven’t really drilled down into her reasons.

It’s not your call to say whose way is better. By all means invite him to stay with you, if you think you’d all enjoy it, but don’t set yourself up on the moral high ground. And talk to your sister properly.

It's not just that it may well not be her motivation. It can't be her motivation, because if it were then she wouldn't be trying to keep her son living at home and delaying buying his own place. That's the opposite of encouraging a child into adulting.

Additionally, OPs way of doing things is better because it means DN being able to buy a property sooner.

Pumpkindice · 19/09/2026 21:50

Minglingpringle · 19/09/2026 21:03

It’s great that you like your nephew and want to have him live with you and everyone will enjoy it.

However, you ARE being disrespectful to your sister. You believe that her approach is wrong and you are going to swoop in and rectify it.

I also don’t think you’ve really talked it through with her fully and properly. You “don’t think” that her motivation is to encourage her son into full adulting. If you’re this involved in her business, you should KNOW. You should have listened to her. For the record, even though that may not be her actual motivation, it would be a very valid one in my opinion. You characterise it as sour grapes - parents trying to make sure their child doesn’t have a better life than them. I disagree. Every problem you solve for your child, you deprive them of the opportunity to grow, the opportunity to learn how to solve that problem themselves. If this is done repeatedly, it undermines their confidence and capability. Nobody develops all the skills of adulthood until they are separate from their parents and fully responsible for their own life - there are lots of things you don’t have to deal with until that actually happens. Yes, of course young people would like to have more disposable income and less responsibility. And it sounds lovely for him at your house. But what’s fun and what’s good for you aren’t always the same thing.

But anyway, as you say, that may well not be her motivation. Nevertheless, you have set yourself above her. You obviously consider yourself superior. You think your way of doing things is better. Yet you haven’t really drilled down into her reasons.

It’s not your call to say whose way is better. By all means invite him to stay with you, if you think you’d all enjoy it, but don’t set yourself up on the moral high ground. And talk to your sister properly.

If she wants to force him to be an adult, him treating this as a commercial transaction and moving out to somewhere he gets a better deal, instead of staying for some sort of family loyalty, is a very adult way to behave.
I don't think she does care about him being an adult though, because her petty and vindictive response shows that she doesn't know how to be one herself.

Needingarest · 19/09/2026 21:21

nomas · 19/09/2026 21:14

Ripping your son off to the tune of £800 per month is not launching your son as an adult, it’s gouging him for every penny you can get from
him.

Charging £800 a month isn’t the issue at all, why shouldn’t she be charging him that? Although personally we ask for a fraction of that from our adult DC, but that should be our choice. Falling out with your son and sister just because he’s found a better deal is what makes her sound not very nice

nomas · 19/09/2026 21:14

Minglingpringle · 19/09/2026 21:03

It’s great that you like your nephew and want to have him live with you and everyone will enjoy it.

However, you ARE being disrespectful to your sister. You believe that her approach is wrong and you are going to swoop in and rectify it.

I also don’t think you’ve really talked it through with her fully and properly. You “don’t think” that her motivation is to encourage her son into full adulting. If you’re this involved in her business, you should KNOW. You should have listened to her. For the record, even though that may not be her actual motivation, it would be a very valid one in my opinion. You characterise it as sour grapes - parents trying to make sure their child doesn’t have a better life than them. I disagree. Every problem you solve for your child, you deprive them of the opportunity to grow, the opportunity to learn how to solve that problem themselves. If this is done repeatedly, it undermines their confidence and capability. Nobody develops all the skills of adulthood until they are separate from their parents and fully responsible for their own life - there are lots of things you don’t have to deal with until that actually happens. Yes, of course young people would like to have more disposable income and less responsibility. And it sounds lovely for him at your house. But what’s fun and what’s good for you aren’t always the same thing.

But anyway, as you say, that may well not be her motivation. Nevertheless, you have set yourself above her. You obviously consider yourself superior. You think your way of doing things is better. Yet you haven’t really drilled down into her reasons.

It’s not your call to say whose way is better. By all means invite him to stay with you, if you think you’d all enjoy it, but don’t set yourself up on the moral high ground. And talk to your sister properly.

Ripping your son off to the tune of £800 per month is not launching your son as an adult, it’s gouging him for every penny you can get from
him.

Minglingpringle · 19/09/2026 21:03

It’s great that you like your nephew and want to have him live with you and everyone will enjoy it.

However, you ARE being disrespectful to your sister. You believe that her approach is wrong and you are going to swoop in and rectify it.

I also don’t think you’ve really talked it through with her fully and properly. You “don’t think” that her motivation is to encourage her son into full adulting. If you’re this involved in her business, you should KNOW. You should have listened to her. For the record, even though that may not be her actual motivation, it would be a very valid one in my opinion. You characterise it as sour grapes - parents trying to make sure their child doesn’t have a better life than them. I disagree. Every problem you solve for your child, you deprive them of the opportunity to grow, the opportunity to learn how to solve that problem themselves. If this is done repeatedly, it undermines their confidence and capability. Nobody develops all the skills of adulthood until they are separate from their parents and fully responsible for their own life - there are lots of things you don’t have to deal with until that actually happens. Yes, of course young people would like to have more disposable income and less responsibility. And it sounds lovely for him at your house. But what’s fun and what’s good for you aren’t always the same thing.

But anyway, as you say, that may well not be her motivation. Nevertheless, you have set yourself above her. You obviously consider yourself superior. You think your way of doing things is better. Yet you haven’t really drilled down into her reasons.

It’s not your call to say whose way is better. By all means invite him to stay with you, if you think you’d all enjoy it, but don’t set yourself up on the moral high ground. And talk to your sister properly.

Pumpkindice · 19/09/2026 21:03

It's nuts that anyone would think £800 to rent a room in a house that you have zero rights over, and zero say over, is a good deal. Even if it is cheaper than the local house shares, at least with those the landlord can't give you two days notice. She wants a commercial rent, she'll have to behave like a landlord not a brat.

AlliWantIsARoomSomewheeeere · 19/09/2026 20:47

YearsOfLife · 19/09/2026 18:32

Ignoring the goady posters, those with weird issues about helping family and those with chips on their shoulders…..

My nephew has all his stuff here now. His mum even made him go through the loft and garages and said anything left by tomorrow will be binned. Who does that with 2 days notice? Anyway, he’s got everything. My husband told him to just bring everything he might want, we can store it and he can go through it whenever he has time. He’s been setting up his room, computer, putting artwork up etc with my kids helping. We are all going to sit and relax with a well deserved takeaway and a film. It’s been a horrible time but hopefully he’ll feel settled and happy now.

Some of these posts are ridiculous. Why should a young man have to love in a crappy house share when he can live with his cousins and aunt and uncle who are happy to have him. You sound like a fab Aunty and mum.nO think you are right, some miserable people don't want anyone to have it easier than they did.

I can't fathom a mother who has a household income of over 140000 charging her son that amount when he is being responsible and saving for a house, especially as she isn't doing it to teach responsibility and keeping some aside for him

As for practically throwing him out when he decided against paying it! Gross.

Stiletosandlippie · 19/09/2026 20:36

His mum is not throwing him out. She is still setting his “keep” well below what it would cost him to live independently, and at a level he could easily save £1k a month, if he can keep his social spending to around £100-120 a week.

@FancyBiscuitsLevel I don’t know, there’s flatshares in some parts of the country for £400-£600 including bills. So I don’t know if that proposed £800 would be well below the cost for his area. She can’t spend that much on the food part of that if he’s usually out working or with his gf.

She may not have thrown him out initially but she’s pushing him out by her and her partner making him feel unwelcome by doubling the rent. It’s outrageous when landlords do that let alone your mum.

And in the end she did throw him out effectively by giving him such a tight deadline, annd even asking him to remove every single thing of his from her house in a weekend. Very odd behaviour.

Thehop · 19/09/2026 20:34

You sound like a lovely family OP he's lucky to have you

Doubledenim305 · 19/09/2026 20:30

twistytwin · 18/09/2026 08:46

Sounds like your sister is trying to make money from him, rather than you! Also sounds like she’s annoyed you’re potentially taking away her income stream.

This! She wants the £800🤣

Ilovelifeverymuch · 19/09/2026 20:29

YearsOfLife · 19/09/2026 18:32

Ignoring the goady posters, those with weird issues about helping family and those with chips on their shoulders…..

My nephew has all his stuff here now. His mum even made him go through the loft and garages and said anything left by tomorrow will be binned. Who does that with 2 days notice? Anyway, he’s got everything. My husband told him to just bring everything he might want, we can store it and he can go through it whenever he has time. He’s been setting up his room, computer, putting artwork up etc with my kids helping. We are all going to sit and relax with a well deserved takeaway and a film. It’s been a horrible time but hopefully he’ll feel settled and happy now.

Are you serious? This feels a lot more than the money because she seems to be very vindictive and mean.
This could literally be the end of her relationship with her son...

Ilovelifeverymuch · 19/09/2026 20:28

YearsOfLife · 19/09/2026 18:20

I didn’t need to keep suggesting that my nephew speak properly to his mum about why she put his rent up because he was already having those conversation with her. I have encouraged both my nephew and sister to keep open communication throughout all of this.

I have talked to my nephew about how much he is saving and how much he would like have in savings before buying a property. I know these figures but you don’t need to.

I have not gone straight to offering him a cheaper option. We had many conversations about the best course of action for everyone over a number of weeks.

There is a timeframe. I have said he wants to buy a house with his girlfriend when his wage increases significantly in the next few years. If that doesn’t go to plan, he can buy without her but I am happy for him to stay longer. You don’t need to know every detail.

He has acted and been treated like an adult, at least by us, throughout. It’s ok for even adults to ask for advice and help from people who they love and trust.

He is not entitled in the slightest. He is a genuinely lovely person who I am proud of. He has dealt with losing his dad and has had many setbacks in life but has come through them all to be resilient, kind and hardworking.

You are making things up. I’m not sure what your problem is.

"He has dealt with losing his dad and has had many setbacks in life but has come through them all to be resilient, kind and hardworking."

For some reason this got me more upset about the whole situation and I think your sister is being very very short-sighted with her decision and how it will affect her relationship with her son.

I applaud you for standing job for your nephew and supporting him, many people would rather avoid conflict with your sister even though the believe and admit that she is wrong.

thepariscrimefiles · 19/09/2026 19:58

FancyBiscuitsLevel · 19/09/2026 17:45

His mum is not throwing him out. She is still setting his “keep” well below what it would cost him to live independently, and at a level he could easily save £1k a month, if he can keep his social spending to around £100-120 a week.

This young man has an inheritance and already had a pot of savings and the OP hasn’t suggested her nephew talk properly to his mum about why she’s moved the rent level, or talk about how much he’s saving a month or what his target amount is. She’s just gone straight to offering him a cheaper option and decided her sister’s motivation must be evil.

There is no timeframe on any of this, no idea of saving targets or what he is managing to save a month now. After he pays his mum now (which includes food) he has around £1500 a month, what he actually saves of that, the OP doesn’t know and doesn’t think she needs to know before offering to have him stay indefinitely and blowing up her relationship with her sister.

No one seems to think this above average earning man should be treated like an adult, this isn’t about saying “we had it tough so you should too”, but “he’s an adult with a professional job who went running to his aunt, not having a proper conversation with his mum.”

His mum is still offering to have him live with her, subsidising his lifestyle so he can save. He just thinks he should get an even better deal with his aunt. That he even asked is incredibly entitled.

You would be OK with him living with his mum and paying £800 per month but you are not OK with him living with OP and her family. You also mention his inheritance in a sneery way which he only has because his dad died. I doubt he enjoys living with his mum's new partner either.

He is obviously a really nice lad and very close to OP and her family as she is very happy to have him live with her.

His mum and her partner don't sound very nice at all.

Pumpkindice · 19/09/2026 19:46

I'm really glad you're doing this for your nephew. It sounds like your sister has thrown her toys out the pram because she wanted the benefits of market rate for a lodger, but ignoring the fact that your nephew didn't even have the rights of a lodger, let alone a house share, because it's a family dynamic where she's in charge, she's very clear it's her house. Which is why she's proving a point now - it's her house not his. Horrible thing to do.
In his case, she treated him like a lodger not family, so he made a good financial decision by finding somewhere cheaper. She wanted him to have family loyalty to her, but only one way.
Now if she's wanting an easy £800 a month she'll need to take in an actual lodger, and she'll realise that's not half as nice as having your well behaved son living at home!

Also for those saying that he should move into a regular house share and carry on saving for a property, have a look at the price of them now and tell me if you could meaningfully save... They're not a 'cheap' option any more, they're the only option for most single people as studio and one bed flats typically require a two income household (yes, even in the north!)

SylvanMoon · 19/09/2026 19:24

YearsOfLife · 19/09/2026 18:32

Ignoring the goady posters, those with weird issues about helping family and those with chips on their shoulders…..

My nephew has all his stuff here now. His mum even made him go through the loft and garages and said anything left by tomorrow will be binned. Who does that with 2 days notice? Anyway, he’s got everything. My husband told him to just bring everything he might want, we can store it and he can go through it whenever he has time. He’s been setting up his room, computer, putting artwork up etc with my kids helping. We are all going to sit and relax with a well deserved takeaway and a film. It’s been a horrible time but hopefully he’ll feel settled and happy now.

I think you and your entire family are lovely to be able to not only just do this for your nephew, but to do it so graciously and generously. I'm sure he appreciates that in his life right now. I can't imagine how a young person would feel having his mother basically throw him out of her house. I do hope that their relationship eventually can heal and perhaps your relationship with your sister can heal too, but I can't see this happening any time soon. Enjoy your relaxed evening.

ReadingSoManyThreads · 19/09/2026 19:07

I'm really glad to hear he is moving in with you, although shocking way for his mother to treat him at the end. I'm glad he has you and your wonderful family to be there for him and support him. He sounds like a wonderful young man. I don't know if your sister has always had a nasty streak or if it's her partner bringing it out of her, but regardless, it's very sad for your nephew that she has treated him with such contempt.

You are a truly wonderful aunt to him, and I've no doubt that in years to come, he'll think of you more as a mother than aunt xxx

Sxwer · 19/09/2026 18:53

OP, your sister is a truly nasty piece of work which you are seeing very clearly, perhaps for the first time.

In a fit of pure viciousness she has told him to remove every trace of himself from his home or she will bin it?
Wow!

MN is often a parallel universe to me, because that IS as ugly and as nasty as it gets.

I hope for her that he moves on successfully in his life and he neither forgives nor forgets this.

She is an absolute disgrace and it screams covert narcissism.

I have 4 young adults here up to the mid 20's and I have never heard the likes of this.

It's what I have come to learn though on MN, the ugly reality when parents put a partner first.

He lost his father and this is what he has been left with? A disgrace.

However unlucky that poor lad is to have lost a dad and have an awful example like that for a mother, he is truly blessed in you, your husband and family.

The long term impact of your kindness and generosity will be something he will carry for ever.

Keep your sister away from your family, she has shown herself to be pure poison, and not someone you should want around you all.

I mean this kindly because you are a very nice woman, but be very careful of her.

The stress she has inflicted on her son is so awful.

That she could do this to her own child means she is truly toxic, and just because you haven't realised that before now, doesn't mean its not true.

Don't force him to be in contact with her.
Respect that he may not feel safe around her and want distance.

Hard to believe he will not have seen this side to her before.

HewasH2O · 19/09/2026 18:37

Does he have everything like his passport, birth certificate, GCSE, A level & degree certificates? I'm team you & nephew

independentfriend · 19/09/2026 18:34

Hope you enjoy having your nephew with you over the next few years and that over time the family relationships with your sister are ok. Do you have a Christmas plan?

YearsOfLife · 19/09/2026 18:32

Ignoring the goady posters, those with weird issues about helping family and those with chips on their shoulders…..

My nephew has all his stuff here now. His mum even made him go through the loft and garages and said anything left by tomorrow will be binned. Who does that with 2 days notice? Anyway, he’s got everything. My husband told him to just bring everything he might want, we can store it and he can go through it whenever he has time. He’s been setting up his room, computer, putting artwork up etc with my kids helping. We are all going to sit and relax with a well deserved takeaway and a film. It’s been a horrible time but hopefully he’ll feel settled and happy now.

OP posts: