How to split rent and bills with roommates
Money is the number-one thing roommates fall out over. It's also almost entirely avoidable. Agree on how you'll split rent before anyone moves in, write it down, and most of the drama never happens.
Three fair ways to split rent
- Equal split. Total rent divided by the number of people. It's the simplest option and works fine when the bedrooms are roughly the same size.
- By room size / features. If one room is way bigger, has a private bathroom, or is the only one with a closet, weight the rent toward it. What usually works is agreeing on rough percentages everyone thinks are fair before you sign anything.
- By what each room is worth to the person in it. Sometimes the small room is fine for someone on a tight budget, and the big room matters more to someone who works from home. Talk it through.
Handling utilities
There are really only two setups that stay clean:
- One person's name, everyone e-transfers. One roommate holds the hydro/internet account and the others send their share each month. Simple, but that person eats the risk if someone doesn't pay. Only do this with people you trust.
- Split accounts. Put different bills in different names (e.g. one person on hydro, another on internet) so the load and the risk are shared.
Either way, decide up front whether utilities get split equally or by usage. Then use a shared note or a bill-splitting app so nobody's chasing receipts in March over a December power bill.
Deposits and the move-out
Keep a record of who paid what for the damage deposit so it comes back to the right people at the end. Photograph the place on move-in day. And settle the awkward question early: if someone leaves before the lease ends, who finds and approves the replacement, and who covers rent in the gap?
Put it in writing
A one-page roommate agreement covering rent shares, utilities, the deposit, chores, guests, and the move-out plan prevents nearly every money fight. Nobody's saying you don't trust each other. It's just the thing everyone's glad exists later. Before you even get to this point, vet for compatibility with our 15 roommate questions, and see how to find a roommate who's actually a good financial fit.
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Frequently asked questions
How should roommates split rent fairly when rooms are different sizes?
Weight the rent toward the bigger or better room (more space, private bathroom, more light). Agree on rough percentages everyone considers fair before signing, rather than defaulting to an equal split that leaves someone resentful.
How do you split utilities with roommates?
Either put accounts in one person's name with others e-transferring their share, or split different bills across different names to share the risk. Decide up front whether to divide equally or by usage, and track it in a shared note or app.
Should roommates have a written agreement?
Yes. A one-page agreement covering rent shares, utilities, the deposit, chores, guests, and what happens if someone moves out early prevents the large majority of roommate money disputes.