Rent proration calculator
Enter the monthly rent and the move-in or move-out date. See the daily rate and the prorated rent by each common method, so you can use the one in your lease.
Move-in counts the move-in day through the last day of the month. Move-out counts the 1st through the move-out day. Rent is due for both end days.
| Method | Daily rate | Prorated |
|---|
The lease decides the method; some states regulate how rent is prorated. Amounts are rounded to the cent. Estimate only.
To prorate rent, find the daily rate and multiply by the days occupied. The common methods divide the monthly rent by the days in that month, by 30, or use rent × 12 ÷ 365. For $1,500 rent and a September 20 move-in, 11 days, that's $550.00 by days in the month or a 30-day month, and $542.47 by a 365-day year.
How to use the rent proration calculator
Pick move-in or move-out
Move-in counts the move-in day to the end of the month; move-out counts the 1st to the move-out day.
Enter rent and date
The monthly rent and the date the tenancy starts or ends.
Choose the method
See all three results and pick the one your lease uses.
What the rent proration calculator covers
Three methods
Days in the month, a 365-day year and a 30-day month, side by side.
Daily rate
Shown to four decimals so the math is easy to check.
Move-in total
Adds the first full month for leases that collect both at move-in.
Full-month cap
A full month is never charged more than one month's rent.
- Days in the month
- Monthly rent ÷ days in that month × days occupied
- 365-day year
- Monthly rent × 12 ÷ 365 × days occupied
- 30-day month
- Monthly rent ÷ 30 × days occupied
- Cost and privacy
- Free, no sign-up; runs in your browser
Questions about the rent proration calculator
How do you calculate prorated rent?
Work out a daily rate and multiply it by the days the tenant occupies the unit that month. The daily rate is usually the monthly rent divided by the days in that month, divided by 30, or the yearly rent divided by 365. The lease should say which.
Which proration method is correct?
The one in the lease. If the lease is silent, landlords often use the actual days in the month. Some states and local rules also address proration, so check yours.
Does the move-in day count?
Usually yes: rent is owed for the move-in day and the move-out day. The calculator counts both.
Why do the methods give different amounts?
Because the daily rate changes. In a 31-day month, rent ÷ 31 is lower than rent ÷ 30; in February it's higher. The 365-day method gives the same daily rate every month.
Is rent proration part of a home sale?
It can be. When a tenant-occupied property is sold, rent collected for the month of closing is usually prorated between seller and buyer on the settlement statement, along with any security deposits.
Guides and features for this step of the deal
Let Closingbird keep every date for you
Closingbird reads the executed contract, fills in every deadline, party and amount, and reminds each deadline owner before the date. Calendar or business days, with weekends and US federal holidays skipped.
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