How to split costs with roommates without it getting weird

Nobody moves out over money. They move out over eight months of small arithmetic nobody said out loud.

The €4 that never came back. The fact that the person in the enormous room with the balcony pays what you pay for a box with a skylight. The flatmate who “just grabs a bit” of everyone’s milk. None of it is worth a fight on day one — which is exactly why it never gets one, and why it becomes the fight in March instead.

So: how to split things in a shared flat so that money stays boring. Which is the highest compliment money can receive.

Fair is not equal

Start here, because it’s the part most flats get wrong by default.

Dividing everything by the number of people is the easiest system and often the least fair one. Rooms are different sizes. Some have a balcony, some have the boiler. One person works from home and the heating runs all day; another is at the office and out four nights a week.

Equal splitting feels fair on move-in day and feels unfair by month four — and the person it’s unfair to usually says nothing, because they’re new, or polite, or don’t want to be the person who talks about money. That silence is where the resentment lives.

So the rule: split by what people actually use, and say the reasoning out loud, so it’s a system rather than someone’s preference.

Nobody moves out because of €4. They move out because of eight months of not mentioning it.

Rent: the argument that has a right answer

Here’s the thing almost nobody in a shared flat realises: you don’t have to argue about who pays what for their room. The Dutch system already did the maths.

Rooms in shared houses are priced by a points system — your room’s square metres, plus your share of the common spaces, plus the building’s value and energy label, all of it producing a legal maximum rent for your specific room. Which means the big room and the box room have different legal maximums, calculated by the same rules. The difference between them isn’t an opinion. It’s arithmetic.

What to do with that:

• Run the Huurprijscheck for each room. It's free, it's in English, it takes ten minutes per room. We wrote a full guide to doing it.

• Use the ratio, not just the ceiling. Even if everyone's paying under their maximum, the proportions between rooms tell you what a fair split looks like — and hands you a neutral number instead of a negotiation.

• If you're the one paying more: now you know whether you're paying more fairly or just paying more.

• If you're the one in the big room: running this yourself and proposing the adjustment is the single most respect-earning thing you can do in a flatshare. It costs you money and buys you a year of goodwill. Worth it.

Bills: pick one system and never think again

The three systems that work. Pick one, out loud, in week one:

• One payer + requests. One person's name on everything, monthly payment requests to the rest. Simplest, works brilliantly, and only fails if the payer is disorganised or the others are slow. The Dutch default, and the Dutch are right about this.

• A shared app. Splitwise or equivalent, everything logged, settle up monthly. Best for houses with irregular shared spending. The trap: an app is a ledger, and a ledger is only as good as the discipline behind it. An abandoned Splitwise is worse than no Splitwise.

• The house pot. Everyone puts €20 or €30 a month into one place; the house buys its own toilet paper, cleaning stuff, bin bags, dishwasher tablets forever. The most underrated system in shared living. It kills the entire category of small annoying purchases and the small annoying conversations attached to them.

Whichever you pick: the person who fronts the money should never have to ask twice. Chasing your flatmates for money is the fastest route to disliking your flatmates.

House stuff: the invisible category

Toilet paper, washing-up liquid, salt, oil, bin bags, that one sponge. Individually trivial, collectively the source of more household bitterness than rent ever was — because there’s no system, so it defaults to whoever notices first. And “whoever notices first” is not a system. It’s a personality tax on the most conscientious person in the house.

The pot solves it. If the pot feels like too much structure, the fallback: one person buys the house stuff, sends one request, everyone pays without discussion. Rotate monthly if you like. What matters is that it’s named, not that it’s elegant.

“Whoever notices first buys it” isn’t a system. It’s a tax on the most conscientious person in the house — and they will eventually stop paying it.

Food: the one you probably shouldn’t share

The romantic vision: a house that cooks together, one shopping trip, one bill, dinner every night like a small commune.

The reality: dietary preferences diverge, schedules diverge, effort diverges, and “we all share food” becomes “two people cook and four people eat” by week six. Shared food is the most common flatshare experiment and the most common flatshare failure.

What actually works:

• Separate food, shared staples. You buy your own; the pot covers oil, salt, spices, coffee, the things nobody wants to itemise.
• Cooking nights, opt-in. Whoever cooks, cooks; whoever eats, chips in or takes a turn. No obligation, no guilt, no rota nobody follows by November.
• The fridge shelf question, answered early and without drama: shelves per person, and yes, that’s normal, and no, it isn’t cold.

And the actual rule underneath all of it: “just grab a bit of mine” only works between people who mean it symmetrically. It never survives contact with someone who only grabs.

The conversation to have on day one

It takes fifteen minutes and prevents a year:

• What's the rent split, and why that number? The points ratio is your friend here.

• Who pays which bill, and how does everyone pay them back? Name the system. Name the day of the month.

• House stuff: pot or one buyer? Decide, don't drift.

• Food: separate, shared, or shared staples? Be honest, not aspirational.

• What happens when someone's broke? The question nobody asks, and the one that matters most. A house that has answered it in advance handles it with grace. A house that hasn't handles it with a group chat at midnight.

• When do we revisit this? "Let's check in after two months" turns every decision above from a law into a draft. It's the single line that makes the whole conversation easy to have.

Have it while everyone still likes each other. Money conversations are cheap on day one and expensive on day two hundred — which, if you’ve read our piece on Dutch flatmates, is exactly why the tikkie culture exists.

When it goes wrong

• Someone’s genuinely broke. It happens — a job ends, a payment from home is late. What a good house does: name a timeline, not a favour. “Pay me back in March” is kind and clear. Silent grace becomes a silent grudge.
• Someone’s just slow. Not malice, just chaos. Automate around them: standing orders, one payment day a month, a reminder that isn’t a confrontation.
• Someone’s freeloading. The real one. It’s never about the money — it’s about being treated as a resource. Say it plainly and early, in the “the milk thing is bothering me” register rather than the “we need to talk” register. The small version of this conversation is survivable. The big version usually isn’t.

Why we’re telling you this

Every one of these is a small thing: the €4, the milk, the balcony, the shelf. And money is the small thing that gets weird fastest — because it’s the one nobody wants to be the first to mention.

loro’s whole premise is that the small things aren’t small. We match people on how they actually live — including how they handle money, guests, mess and mornings — so the flat you join is one where the day-one conversation is easy, because you were compatible before you were flatmates.

We’re launching in the Netherlands soon.