No landlord pays us. We never send your details to a landlord, never ask for your SSN or bank login, and cite the statute behind every rule. How we make money
Sign inPlan my move-out
Split rent · worked example

A new roommate moves in mid-month

Their first month is a proration; every month after is the normal split. Keep the two separate and nobody pays for nights they weren’t there.

Dev’s first month
$455.00
Sample numbers
MonthNightsWorkingRent
Nov 202613 / 30$1,050.00 × 13 ÷ 30$455.00
Total13$455.00
Worked example

The numbers, step by step

Dev takes over a room whose share is $1,050 a month and moves in on November 18. November has 30 days, so Dev pays for 13 nights, from the 18th to the 30th inclusive. The roommate who left (or the household) covers the first 17 nights.

  1. 2026-11: 13 of 30 nights → $455.00.
  2. Total: $455.00.

Names and amounts are samples. Change any number in the calculator above and the result updates.

Keep it running

Turn this into a household: rent posts at the agreed split each month, bills split by days home, and housr works out who owes whom. Roommates join with a link and a name.

Make it a household

When this split is fair, and when it isn’t

Fair when

  • You count nights the same way for everyone, including move-in day and the last night.
  • The room’s share stays what it was. If the new person changes how the flat is used (a couple moving in, say), re-run the split from the next full month.
  • Who covers the gap before the move-in date was agreed when the previous roommate gave notice.

Not so fair when

  • If the new roommate moves in a few days early with the household’s blessing, charging them for those days is fine; charging them for days they were told they couldn’t move in is not.
  • If the lease requires the landlord to approve a new occupant, do that before the move-in date; a proration doesn’t fix an unapproved occupant. In New York, the Attorney General’s guide says a tenant “must inform the landlord of the name of any occupant within 30 days of the occupant moving into the apartment”.
  • Don’t forget the deposit: either the new roommate buys out the leaver’s share, or the household does (see the leaving scenario).

This is general information about splitting costs between yourselves, not legal advice. Your lease and your state’s law decide what you owe the landlord.

Sources

  1. New York State Attorney General, Residential Tenants’ Rights Guide. Checked 2026-10-05.
  2. Office of the Texas Attorney General, Renter’s Rights. Checked 2026-10-05.
  3. USAGov, How to file a complaint against a landlord. Checked 2026-10-05.
Split rent

A roommate is leaving mid-lease. What do they owe, or get back?

Three separate questions get tangled when someone leaves: this month’s rent, their share of the deposit, and the last bills. Answer them one by one and net them into a single payment.

Open the example Split rent

Subletting your room for the summer

A sublet is a proration across months, plus a reminder that the lease still names you. Get both right before you hand over a key.

Open the example Split rent

One deposit cheque, three roommates

Landlords often return a shared deposit as one payment. Splitting it fairly means starting from what each person paid in, then taking out deductions the right way.

Open the example