June 27, 2026 · 4 min read

Roommate Rent Split: 4 Fair Methods Explained

Splitting rent sounds simple — until one bedroom is twice the size of another, or someone makes three times your salary. Here are four fair ways to divide the rent, with pros and cons for each.

1. Equal Split

Everyone pays the same amount. If your total rent is $3,000 and you have 3 roommates, each pays $1,000.

Best for: Apartments where all bedrooms are roughly equal in size, everyone shares the same bathroom situation, and incomes are similar.

Watch out: If one bedroom is much larger or has a private bathroom, an equal split can feel unfair.

2. By Room Size (Square Footage)

Calculate each person's share based on the square footage of their bedroom. The person with the bigger room pays more.

Example: Total bedrooms = 400 sq ft. Room A = 150 sq ft (37.5%), Room B = 150 sq ft (37.5%), Room C = 100 sq ft (25%). With $3,000 rent: A pays $1,125, B pays $1,125, C pays $750.

Best for: Apartments with noticeably different bedroom sizes.

3. By Income

Each roommate pays a percentage proportional to their income. If one person earns $60K and the other $40K, the higher earner pays 60% of the rent.

Best for: Couples, close friends, or situations where there's a large income gap.

Watch out: Requires transparency about income, which not everyone is comfortable with.

4. Custom / Hybrid

Mix and match. Maybe the person with the master bedroom pays 40% and the other two split 60% equally. Or the person who covers all the utilities gets a rent discount.

Best for: Any situation — the most flexible approach.

Don't Forget Utilities

Rent isn't the only shared cost. Electricity, water, gas, internet, streaming services — decide how these are split too. The most common approach is equal split for utilities, even if rent is split differently.