Couple Faces Drama When Sister-In-Law Moves In With Baby And Demands Less Rent Because She’s A Stay-at-Home Mom

Living with family can be a tricky balance of compassion and fairness. This original poster (OP) found themselves in a tough spot when their partner’s sister and her family faced the threat of losing their home and asked to move in with them.

The complication? It meant a rent increase, and suddenly, the financial division became a point of tension.

OP suggested that everyone pay an equal share of the increased rent, but the sister-in-law who doesn’t work argued that she shouldn’t have to pay her portion. This disagreement led to a clash about fairness and responsibility.

Keep reading to find out how OP handled the situation and whether their request for fairness was reasonable!

Man insists on equal rent split, but is pressured to pay more for stay-at-home mom

Couple Faces Drama When Sister-In-Law Moves In With Baby And Demands Less Rent Because She’s A Stay-at-Home Mom
not the actual photo

'AITA for not helping my sister in law and her baby with rent?'

So me and my partner pay 1450 a month on rent and we split it evenly.

Its fair, and we are doing our own thing.

Recently her sister who has a husband and a 1 year old child is losing their housing

because the friend they were staying with is moving and they cant afford the rent by themselves.

They want to move in with us and since our apartment is a 1 bedroom

we would have to get a 2 bedroom apartment.

The rent will increase from 1450 to 1800 a month.

I am insisting that the 4 of us each pay 25% of the rent

but the mother of the child doesnt think its fair because she doesnt work and has a child

and her husband is the only working parent

so they want me, my partner, and her sisters husband to pay 1/3 each instead.

I told her thats not my problem and that they, as a couple,

are responsible for $900 a month between the both of them,

if she needs money, get a job.

The couple seem to think that because shes a SAHM

thats somehow my responsibility to pay for her portion of rent.

I dont have kids and im sure its stressful and costly

but I dont feel like its fair to expect anything like that of me.

TLDR; I was told its unfair of me to expect my sister in law,

who is a SAHM to pay her portion of rent, while living with us.

Edit: The response seems to be overwhelmingly one sided, will definitely make an update

once things calm down, things are discussed, and compromised made, or not made.

This situation is a classic example of how differing expectations around financial responsibility can create tension, particularly when it involves family members.

The OP’s stance seems clear and fair: splitting rent equally among four people makes sense given that everyone would be living in the apartment and benefiting from the space.

However, the issue arises when the sister-in-law (SAHM) believes that her financial contribution should be lessened due to her status as a stay-at-home parent, and the OP doesn’t agree.

The underlying emotional issue here is one of expectation and fairness. From the OP’s perspective, it’s about dividing the rent evenly because everyone is benefiting from the space equally, regardless of whether or not they work.

The SAHM feels, however, that her situation warrants a special consideration since she is not working and, by default, does not have a steady income. This brings up a larger conversation about shared responsibility and what is fair when it comes to contributing to household expenses, especially in a blended living situation.

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Psychologically, the issue seems to be tied to *role expectations* and how society views different kinds of work. A study highlighted how stay-at-home parents (particularly mothers) often feel undervalued because their work is not seen as “financially productive”.

In this case, the sister-in-law may feel that her role as a mother and homemaker should be considered valuable enough to not demand financial contributions, while others may see it as important to hold everyone in the household accountable for their share of rent.

From a fairness standpoint, the OP’s insistence that everyone should contribute equally makes logical sense. The increased rent applies to everyone in the apartment, and the additional financial burden should be shared evenly, regardless of employment status.

In fact, a report about splitting household expenses in shared living situations suggests that unless there’s an agreement beforehand or an additional financial benefit, everyone living in the space should contribute equally.

However, the emotions involved in this situation are understandable, particularly for the sister-in-law who feels that her current circumstances (being a SAHM with a child) should be taken into account.

Her desire to not contribute fully could be driven by feelings of stress, burnout, and the assumption that her situation doesn’t permit her to fully engage in financial responsibility.

It’s important to recognize that parenting and homemaking are, indeed, demanding and valuable roles, but when it comes to finances, many people in similar living situations still expect equal contributions for shared resources, as the OP does.

Ultimately, this situation hinges on communication and compromise. Both sides need to discuss the issue openly and come to a solution that feels fair to everyone involved.

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While the OP’s position is understandable and reasonable from a financial standpoint, the emotional weight for the SAHM should not be ignored.

It may help to have a deeper conversation about expectations, responsibilities, and alternative ways to divide the financial load, perhaps through other contributions (like household chores, childcare, etc.) if the sister-in-law is not able to pay her full share.

The main takeaway here is that fairness isn’t just about splitting things down the middle. It’s about addressing everyone’s emotional and practical needs in a way that fosters understanding and collaboration.

Let’s dive into the reactions from Reddit:

These users strongly advised against moving in with the family, warning about potential financial and personal struggles

Comeback_321 − She’s right, it’s not fair. They should pay $1080.

Because it’s 3 people.

And baby stuff will dominate the entire apartment except your actual dresser if you’re lucky.

NTA.

It’s not fair to expect people to subsidize her living situation bc she can’t afford it.

Humble_Pen_7216 − Do not live with them.

Your SIL is going to push hard for all your time and money. NTA

LdiJ46 − Do NOT agree to move in with them. It is a disaster in the making.

You will massively regret it if you do.

Stay put where you are and let them figure out something else.

This group emphasized the unfairness of the rent distribution and the loss of privacy, with concerns about the baby taking over the apartment and escalating entitlement

Ok_Tonight_3703 − NTA. Do not move in with them.

They want you to pay more rent so the sister can stay at home

and have the audacity to argue with you as to why you should pay more rent.

Besides the money. Do you really want to live with a baby?

Do you want to lose your privacy?

Do you want to deal with having to cover all the rent if the husband loses his job?

Do not do it.

AngeloPappas − NTA - And I would not even go for this if they agreed to split rent 50-50.

They are bringing a child who will dominate the space.

The apartment will be theirs, and your only space will be your bedroom.

Expect the living room, kitchen, and bathroom to be kid zones

where you will have limited use.

Considering the entitled attitude already,

how much worse will it get once the move happens?

They will slowly push and push until you are fully subsidizing their living expenses.

Overall this just sounds like a terrible arrangement. Don't do it.

Forced_Storm − Moving in together is a terrible idea.

If the family needs someone else to susidize their rent,

then she cannot afford to be a stay at home mom.

These commenters echoed the advice to avoid living with the family, citing the inevitable complications and discomfort that would arise from such an arrangement

chjoas3 − NTA - and do not live with them.

Tls-user − Yikes - why would you want to move into a two bedroom with a baby?

I legit would not do that if it was free

WarDog1983 − NTA - do not do this This will be such a disaster in every way

These users pointed out possible hidden motives

Scully152 − Are you SURE the friend is moving away

& just doesn't want to live with that level of entitlement anymore?

R3dmund − NTA. She can be a SAHM all you want,

but your spouse better be able to afford you and all your kids or you gotta get a job.

Queen_V_1 − Stop being used AND don't give up your peace to a crying baby.

Guess who's going to be babysitting when they want to go out for the night?

These commenters focused on the unreasonable rent proposal and the additional space and utilities required for the baby

Brains4Beauty − NTA. And they’ll never leave if you let them move in.

And eventually they’ll have financial problems and you’ll be footing the whole bill

Mammoth-Ad6145 − So she thinks 2 people should pay 1200 while 3 people pay 600?

That’s insane.

Honest_Swim7195 − Um. You need a 3 bedroom.

The kid may not need a room now, but will soon enough.

And, yes, 2 adults is at least 2/4 of the expenses, possibly more since kids take up space

and use utilities too. NTA

This situation is a classic case of family expecting a “charity discount” that essentially taxes the person with the fewest responsibilities.

While moving into a two-bedroom to help family is a generous offer, the expectation that the OP should subsidize a sister-in-law’s lifestyle just because she’s a stay-at-home mom is a massive boundary cross. It turns a helpful gesture into a long-term financial burden, proving that when it comes to rent, “family math” often fails to add up.

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Do you think the OP’s 25% per-adult demand was fair given the loss of privacy, or should they have considered a “per room” split instead? How would you handle a relative who thinks your paycheck should cover their life choices? Share your hot takes below!

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