How to Split Rent Fairly With Roommates

There is no single fair way to split rent; what matters is that everyone agrees before moving in. The common methods are: equal (simple, fine when rooms are similar), by room size (each roommate pays in proportion to their bedroom's square footage) and a blend, where part of the rent covers shared space equally and the rest follows room size. A 50% blend is a common middle ground because the kitchen, living room and hallways are used by everyone.

Many households also adjust for features: a private bathroom, a closet, a balcony, natural light or a parking spot. A simple way is to give that room a higher weight — enter 1.2 instead of 1, or add square feet. If a couple shares a room, they often pay that room's share plus a little more for extra use of shared space and utilities.

Write the method down in a roommate agreement. General information, not legal or tax advice.

Last reviewed 2026-10-29. General information, not legal or tax advice. Check your lease and your state and local law.