How to split rent fairly between roommates

Splitting rent evenly sounds fair until one roommate is paying the same for the room with no closet and the shared wall to the street. The fair version takes ten minutes and saves months of quiet resentment.

Start with the room, not the headcount

Rooms are rarely equal. Size matters, but so do the things people actually feel every day. Think about a private bathroom, natural light, a closet, street noise, and who gets the parking spot. Write down what each room has before anyone talks about numbers.

Give each room a weight

Give every room a score out of 10 and add them up. Each person pays their score divided by the total, times the rent. Say the rent is $3,000 and the three rooms score 8, 6.5, and 5.5. The total is 20, so the shares are 40 percent, 32.5 percent, and 27.5 percent. That is $1,200, $975, and $825.

Do not argue about the scores one at a time. Have everyone score all three rooms privately, then average them. It keeps the person who wants the big room from quietly lowballing it.

Split the shared stuff evenly

Utilities, internet, and shared supplies usually go evenly. The exception is something only some people use, like a parking spot or a window unit. Put that cost on the people who use it.

Decide who fronts it

Someone is on the lease, or has the account that pays the landlord. That person fronts the whole amount every month and waits for everyone else. This is where friendships get strained. Agree on one due date and one way to pay before move-in.

If you would rather not chase anyone, Splice charges each roommate their share from a saved card on the day you pick and pays you back. Everyone sees their exact amount first and can pause before a charge. You can also try our rent split calculator to work out the shares.

Revisit it once a year

Rooms change. Someone gets a home office, a roommate moves out, the rent goes up. Put a yearly reminder on the calendar to run the numbers again.