Prorated Rent Calculator
Work out rent for a partial month when you move in or out mid-month. Enter the rent and the date, and compare the three common proration methods side by side. Free, instant, no sign-up.
How to calculate prorated rent
Prorated rent is the share of a month's rent you owe for the days you actually live in the unit. It comes up when a lease starts or ends partway through a month. The formula is simple:
Prorated rent = daily rate × days occupied
Count from your move-in date through the last day of the month, including the move-in day. For a move-out, count from the 1st through your last day. The only question is how the daily rate is set, and that depends on the lease.
The three proration methods
- Days in the month: rent ÷ the number of days in that month. The most common method, and the fairest. The daily rate changes from month to month.
- 365-day year: rent × 12 ÷ 365. The daily rate is the same all year, so February move-ins pay slightly more per day than with the first method.
- 30-day month: rent ÷ 30, sometimes called the banker's month. Simple to calculate, but it overcharges in 31-day months, so the total is usually capped at one month's rent.
Prorated rent examples
$1,500 monthly rent, moving in on the 20th, using days in the month:
| Month | Days occupied | Daily rate | Prorated rent |
|---|---|---|---|
| February (28 days) | 9 | $53.57 | $482.14 |
| June (30 days) | 11 | $50.00 | $550.00 |
| July (31 days) | 12 | $48.39 | $580.65 |
For landlords: prorating a new tenant
Write the proration method into the lease so there's no argument later, and decide whether late-month move-ins pay the prorated amount plus the next full month at signing. Before you hand over keys, check that the applicant can carry the full rent with the rent-to-income calculator and a free rental verification from their previous landlord. Raising rent at renewal instead? Use the rent increase calculator.
Frequently asked questions
How do you calculate prorated rent?
Find the daily rate, then multiply by the days you occupy the unit. The most common daily rate is monthly rent divided by the number of days in that month. For $1,500 rent and a move-in on June 20, that is $1,500 ÷ 30 = $50 a day for 11 days, or $550.
Does prorated rent include the move-in day?
Usually, yes. Most landlords count both the move-in day and the move-out day as days you occupy the unit, so you pay for them. This calculator counts them that way.
Which proration method is correct?
Whichever your lease says. Dividing by the actual days in the month is most common, but some leases use a 365-day year or a flat 30-day month. The difference is usually a few dollars, and more in February or 31-day months.
Do I pay prorated rent and next month’s rent at move-in?
Often, if you move in late in the month. Many landlords collect the prorated amount plus the next full month’s rent at signing when move-in falls after about the 20th, so you don’t owe two payments within a few days.
Is a landlord required to prorate rent?
It depends on the lease and local law. Many leases require a full month’s rent regardless of move-in or move-out date, and some states require proration in certain situations. Check your lease and local rules.
Screening a new tenant?
See an applicant's estimated monthly income from their actual bank deposits, with no pay stubs to chase and no credit pull. Reports are as low as $5 each.
See how it worksFigures are estimates. Your lease and local law decide how partial months are charged.