13 things to agree on before you move in together

Reviewed by Sonia Abu Bakar✓, MSc Botany

By Abu Bakar Saadat6 min readPublisher: Saadat Rafiq

Last updated: 2 November 2026References

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On this page 8 sections

In short

Moving in is romantic for about a week. Then someone discovers the other one owns 14 mugs and no bin bags. Decide these 13 things now, while you still find each other's quirks cute.

At a glance

Couples who "slide" in: About two-thirds, in one national US sample
Rhoades et al. 2009: 1,050 married people; differences generally small
Money arguments: 45% of couples argue about money at least sometimes (Fidelity, 2024)
Time needed: One evening to agree, then 15 minutes a month
Checked: November 2026

Zoe and Malik have been together 18 months. His tenancy ends in March, hers in April, and "it just makes sense", they tell their friends. Nobody has mentioned that Malik goes to bed at 10:30 and Zoe watches true crime until 1. Or that Biscuit the cat has strong views about strangers. Or what happens to the deposit if it all goes wrong.

Relationship researchers have a name for this: sliding instead of deciding. Here are 13 things to actually decide before the van arrives, with a script for the awkward ones.

Decide, don't slide

1. Say out loud why you're moving in

Illustration of a couple on a park bench holding mugs, the woman gesturing as she talks about the future while the man listens, a ginger cat sitting beside her — Illustration

Is this a step towards a long future, a way to save on rent, or a trial run? All three are fine, but you both need to know which one it is. Psychologists Scott Stanley and Galena Rhoades call drifting into big relationship steps without a clear shared decision "sliding". In one national US sample they cite, about two-thirds of people living with a partner said they had slid into it rather than decided together.

Try saying: "When you picture us in two years, what does living together lead to?"

2. Know what the research actually says (it's not doom)

Illustration of a man at a table reading printed pages with raised eyebrows while his partner leans over his shoulder and points at a paragraph — Illustration

A 2009 study of 1,050 people married in the previous ten years found that those who moved in together before getting engaged reported slightly lower marital satisfaction, commitment and confidence than those who moved in after engagement or after marriage. The authors said the differences were generally small. The lesson isn't "don't move in". It's that a clear shared commitment, whatever form it takes, turns the move into a decision instead of a drift.

Money

3. Pick a money system: joint, separate, or a bit of both

Illustration of a couple at a kitchen table each dropping a folded note into the middle one of three plain glass jars of coins and notes, a ginger cat lying on the table — Illustration

Fidelity's 2024 Couples and Money study, which surveyed 1,794 US couples who live together, found that 45% argue about money at least occasionally, and more than 1 in 4 say money is their biggest relationship challenge. Choose your system before the first rent day: one shared pot, fully separate accounts, or a joint account for bills with your own money on the side. The table below compares the three.

4. Agree how to split bills: 50/50 or by income

Illustration of a couple at a table looking at a laptop together, the woman smiling and writing notes while the man explains, a ginger cat peeking out of a box behind them — Illustration

If one of you earns much more, a 50/50 split can quietly breed resentment. Some couples split shared bills in proportion to what each earns: if you earn 60% of your combined income, you pay 60% of the rent and bills. Neither way is "right". Agreeing on one is what matters.

5. Name a "talk first" spending limit

Illustration of a woman in a furniture showroom grimacing at her phone as she texts, standing next to a blue velvet armchair with a blank price tag — Illustration

Pick an amount, say £150 or $200, above which either of you checks in before spending money from the shared pot. It's not about permission. It's about no nasty surprises on the statement.

6. Check whose name is on the tenancy

Illustration of a couple laughing as they sign papers at a table while a letting agent, seen from behind, holds out a set of keys — Illustration

Who signs the lease, who paid the deposit, and what happens if one of you leaves? If only one name is on the agreement, the other person may have few rights to stay. Get the answers clear, and in writing, before anything goes wrong. In the UK, Shelter and Citizens Advice explain tenants' rights for free. In the US, try your local tenant union or legal aid office.

Home life

7. Define "clean" before you share a kitchen

Illustration of a woman in a small kitchen holding up a dirty mug in comic outrage while her partner raises both hands and laughs — Illustration

To one of you, clean means wiped surfaces. To the other, it means no cup ever left in the sink. Walk through each room together and agree the minimum standard and who owns which jobs. Our guide to splitting housework fairly walks you through it.

8. Sort out sleep: bedtimes, alarms and snoring

Illustration of a bedroom at night, a man asleep in an eye mask while his partner lies beside him with headphones on, watching a dim tablet, a ginger cat curled on the blanket — Illustration

A night owl and an early bird can share a bed happily if they agree on lights, phone brightness, alarms and the snooze button. Decide now what happens when one of you can't sleep: headphones, the sofa, or a white-noise machine.

9. Agree guest rules

Illustration of a man opening the front door to two friends holding wine bottles and holding up his phone, while his partner in pyjamas on the sofa gives him a look — Illustration

How much notice do you need before friends come over? Can a sibling stay for a week? What about an ex who's "just a friend"? Decide a default ("text by lunchtime for evening guests") so neither of you comes home to a surprise dinner party.

10. Give each of you a space of your own

Illustration of a woman curled in an armchair with a book in a lamp-lit corner while, through a doorway, her partner plays guitar in the next room — Illustration

Even in a small flat, have a corner, a desk or a chair that is only yours, plus some regular time alone. Wanting your own space isn't rejection. It's how two people stay two people under one roof.

11. Make a plan for pets, plants and possessions

Illustration of a couple laughing on two mismatched sofas with a tower of mugs on the coffee table and a ginger cat sitting on a stack of boxes behind them — Illustration

Whose cat, whose sofa, whose 14 mugs? Agree what comes with you, what gets sold, and who pays the vet. A cat like Biscuit will need a slow introduction to his new territory.

The grown-up bits

12. Hold a monthly "house meeting"

Illustration of a couple laughing over mugs of tea at a small kitchen table with a sheet of paper between them, a ginger cat sitting on a stool and a calendar on the wall — Illustration

Fifteen minutes, once a month: bills, chores, anything that's been bugging you. Small issues raised early stay small. Ten months of silent resentment about the bins do not. If a talk does turn into a row, our fight rules for happy couples help you keep it fair.

13. Agree the "if it ends" plan while you love each other

Illustration of a couple sitting close on a patchwork sofa, the woman resting her head on the man's shoulder as he writes on a notepad, a ginger cat asleep under the coffee table — Illustration

Nobody wants to discuss this, which is exactly why you should do it now, kindly: who stays, who goes, how you split shared things and the deposit, and how much notice each of you gets. Agreeing it calmly at the start can make you both feel safer, not less romantic.

Try saying: "I'm not planning to need this. I just want us both to feel safe."

Joint, separate or both? Three money systems compared

System	How it works	Suits couples who	Watch out for
All joint	Both incomes go into one account that pays for everything	Earn and spend in similar ways, and want full openness	Arguments over each other's personal spending
All separate	Each keeps their own account and you split each shared bill	Value independence, or are still early on	Endless "you owe me" sums, and nobody owning the big picture
Yours, mine and ours	A joint account for rent and bills, topped up by each of you; the rest stays personal	Want shared bills sorted but some money of their own	Agreeing what counts as "shared" (takeaways? the cat?)

Quick check: are you ready for moving day?

We both know why we're moving in and what it means for us.
We've picked a money system and a way to split bills.
We know whose name is on the tenancy and what happens to the deposit.
We've agreed what "clean" means and who does which jobs.
We've booked our first monthly house meeting.

Five ticks: book the van. Three or fewer: spend one evening on steps 1, 3 and 6 first.

Moving in shouldn't mean losing control. If a partner takes your keys, money or phone, decides who you can see, or frightens you, that isn't a flatmate problem. UK: National Domestic Abuse Helpline, 0808 2000 247 (free, 24 hours). US: National Domestic Violence Hotline, 1-800-799-7233. In an emergency, call 999 (UK) or 911 (US).

Questions readers ask

What should we agree on before moving in together?

Why you are moving in, how you will handle money and bills, whose name is on the tenancy, what clean means and who does which jobs, sleep and guest rules, and a calm plan for what happens if you split up.

Is it bad to move in together before getting engaged?

Not necessarily. A 2009 study of 1,050 married people found those who lived together before engagement reported slightly lower marriage quality, but the differences were small. Researchers suggest the bigger issue is sliding into it without a shared decision.

Should couples split bills 50/50 or by income?

Either can be fair. If your incomes are similar, 50/50 is simple. If one of you earns much more, splitting shared bills in proportion to income often feels fairer. What matters is agreeing on one method before the first rent day.

How do we talk about what happens if we break up?

Do it early and calmly, while things are good. Agree who would stay, how you would split shared things and the deposit, and how much notice each of you gets. Write it down and keep it with your tenancy papers.

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