Free tool for property managers and leasing teams · No sign-up

Prorated rent, calculated in seconds

Enter the rent and the move-in or move-out date. See the amount due by all three proration methods, add pet rent or parking, and print the breakdown for your renter.

Prorated rent calculator

Your prorated rent, live

Change any field and the result updates instantly.

Your numbers

Use the method your lease names.

$
$
Pet rent, parking, storage or utilities billed monthly. Leave at 0 if none.
Prorate for a
Most apartment leases use actual days in the month.
Prorated rent due
$677.42
14 days (December 18 to December 31) at $48.39 a day.

Prorated rent$677.42
Total due at move-in$677.42
Same dates, all three methods
Actual days in the month$677.42
30-day month$700.00
Yearly (365 days)$690.41

How it works

How to calculate prorated rent

Prorated rent is the share of a month's rent a renter owes for the days they actually live in the unit. You find a daily rate, then multiply it by the number of days occupied.

For a move-in, the days run from the move-in date to the last day of that month, counting both days. For a move-out, they run from the 1st of the month to the move-out date.

There are three common ways to set the daily rate. Your lease should say which one applies; if it doesn't, the actual-days method is the most widely used.

The three methods

Same move-in, three answers

Example: $1,500 a month, move-in on December 18, so the renter owes 14 days of December.

MethodDaily rateFormulaProrated rent
Actual days in the month$48.39$1,500 ÷ 31$677.42
30-day month$50.00$1,500 ÷ 30$700.00
Yearly (365 days)$49.32$1,500 × 12 ÷ 365$690.41

In a 30-day month like November, the actual-days and 30-day methods give the same answer. The difference shows up in 31-day months and in February.

Good practice

Avoid move-in disputes

Name the method in the lease

State which daily-rate method you use, so the number on the move-in statement matches what the renter signed.

Use one method for everyone

Apply the same method to every renter and every unit. Consistency is fairer and easier to defend.

Show the math

Give the renter the breakdown: days, daily rate and total. Printed or copied from this tool, it answers the question before it's asked.

Questions

Common questions

How do you calculate prorated rent?

Divide the monthly rent by the number of days in the month (or by 30, or multiply by 12 and divide by 365, depending on your lease) to get a daily rate. Multiply the daily rate by the number of days the renter occupies the unit that month.

Do you count the move-in day?

Yes. The renter has the unit on the move-in day, so it is normally charged. A move-in on the 18th of a 31-day month is 14 days.

Which proration method is most common?

The actual-days method (monthly rent divided by the days in that month) is the most common for apartments. Some leases use a 30-day month or a 365-day year; follow whatever your lease says.

Should the renter also pay next month's rent at move-in?

Many properties collect the prorated amount plus the next full month when a renter moves in late in the month, so the first full rent payment isn't due a few days after move-in. Tick the option in the calculator to include it.

Are prorated amounts set by law?

Rules vary by state and city, and some places require proration in specific cases. This calculator does the arithmetic only; check your lease and local law for what applies to you.

Before the move-in

Fill the unit before you need to prorate it

Renters lease with whoever answers first. LeaseUp Bulldog texts every new rental lead, qualifies the renter and books the tour. From $199 a month.