Rent split calculator
Split Rent Based on Income Calculator
Split rent and utilities proportionally from each roommate's income.
Split result
The table shows each roommate share. Add other costs if you want rent plus utilities instead of rent alone.
| Person | Basis | Share |
| Roommate A | $4,000.00 | $1,080.00 |
| Roommate B | $6,000.00 | $1,620.00 |
How this calculator works
Income-based splitting divides rent and entered shared costs in proportion to each roommate income. The table shows the monthly share for each person so the agreement can be checked before anyone pays.
When to use this page
Use it when roommates have different incomes, different room values, parking arrangements, private bathrooms, or shared utilities that need to be discussed before signing or renewing a lease.
Choosing a fair split method
Income-based rent splitting can help when roommates agree that ability to pay should matter more than identical shares. It works best when everyone is comfortable using income as the basis.
Utilities and shared costs
Rent and utilities do not always need the same split. Some households split rent by room value but split internet, electricity, water, or supplies equally. Put only the shared costs you want included into the calculator.
What this result does not include
This does not decide legal responsibility under the lease, damage deposits, late fees, household chores, variable utility usage, or what happens if one roommate cannot pay.
Worked examples
Different incomes
$2,400 rent plus $300 utilities split between $4,000 and $6,000 monthly incomes gives the higher-income roommate a larger share.
When income-based split helps
If one roommate earns much less but both want the same apartment, an income-based split can make the rent conversation more explicit before the lease is signed.