Rent split calculator
Split Rent Based on Income Calculator
Split visible rent and optional shared costs between two people in proportion to their entered incomes.
Total shared monthly cost
The displayed person amounts are rounded to cents and always reconcile exactly to the displayed total.
| Person | Monthly income | Percentage | Amount |
| Person A | $4,000.00 | 40.00% | $960.00 |
| Person B | $6,000.00 | 60.00% | $1,440.00 |
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 two people agree to allocate shared monthly costs in proportion to their incomes.
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 with no added shared costs split between $4,000 and $6,000 monthly incomes assigns 40% to Person A and 60% to Person B.
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.