Free calculator
Signing a lease together? Enter each roommate's rent and every upfront cost to see how much cash each person needs before move-in day.
Runs in your browser. Nothing is sent or saved. Enter each roommate's monthly rent and every upfront cost, then choose whether each cost follows the rent split or is shared evenly.
| Roommate | Rent upfront | Shared costs | Own fees | Total |
|---|---|---|---|---|
| Alex | 700.00 | 770.00 | 40.00 | 1510.00 |
| Sam | 650.00 | 720.00 | 40.00 | 1410.00 |
| Jo | 550.00 | 620.00 | 40.00 | 1210.00 |
How it works: rent upfront is each person's own monthly rent times the months due upfront. Costs set to "by rent share" are split in proportion to monthly rent (evenly if no rent is entered); "evenly" costs are divided equally. The per-person fee is added to everyone.
Check the listing and lease for what is due at signing: first month's rent, sometimes last month's, the security deposit, application or admin fees, and any broker fee. Add setup costs like internet installation and shared basics.
If rooms differ in size, settle the rent split before anything else. The rent split calculator helps. Deposits and fees that scale with rent are usually split the same way.
Things everyone uses equally, like internet setup, cleaning supplies and kitchen basics, are usually split evenly. Per-person charges such as an application fee stay with each person.
Pick one roommate to pay the landlord, and have everyone send their figure to that person before the signing date so nobody is out of pocket.
Record what each person put toward the deposit. When you move out, the refund is split from those numbers, so keeping them now avoids an argument later.
Rooms different sizes? Set the rent first with the rent split calculator, and moving in mid-month, use the prorated rent calculator. Then put the house rules in writing with the free roommate bill agreement template.
Add up everything due at signing (first month's rent, any last month's rent, the security deposit, fees) plus setup costs such as internet and shared basics, then split it. The calculator above shows each person's total.
Deposits are often set as a multiple of rent, so splitting them by each person's rent share is common when rooms are priced differently. If everyone pays the same rent, both methods give the same result.
It depends on your lease and local rules. When roommates pay it, splitting it by rent share is a fair default because it is usually based on the rent.
Another roommate can cover it and be paid back on an agreed schedule. Write the amount and dates down so it doesn't get forgotten after the move.
No. Everything runs in your browser and nothing is sent or saved.
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