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Business finance / Prorated Rent Calculator

Prorated Rent Calculator

Rent for a partial month when a tenant moves in or out mid-month, by the daily, 30-day or 365-day method.
$

Enter a number of at least 0

Whole number, 1–31

Both the move-in and the move-out day count as days you pay for.

Your lease may name the method. Check it before you agree a number.

Rent for move-in month
$650.00
$50.00daily rate
13days charged
$0full month $1,500.00
  • Prorated rent
  • Not charged
Monthly rent$1,500.00
Daily rate · rent ÷ 30$50.00
Days charged · day 18 to day 3013
Prorated rent$650.00

The other 17 days of the month are not charged.

See breakdown

How the prorated rent calculation works

  1. Find the daily rate

    Divide the monthly rent by the days in that month. $1,500 in a 30-day month is $50 a day. Some leases use a fixed 30-day month or rent × 12 ÷ 365 instead.

  2. Count the days the tenant has the unit

    Moving in on the 18th of a 30-day month means paying for the 18th through the 30th: 13 days. Moving out on the 10th means paying for days 1 to 10.

  3. Multiply the daily rate by the days

    $50 × 13 days = $650. The result never goes above one full month's rent.

  4. Check what your lease says

    The three methods can differ by a few dollars. If the lease names a method, use that one.

Worked example. Rent is $1,500 and the tenant moves in on the 18th of a 30-day month. The daily rate is $1,500 ÷ 30 = $50, the tenant pays for 13 days, and the prorated rent is $650.

Prorated Rent FAQ

How do I calculate prorated rent?

Divide the monthly rent by the number of days in the month, then multiply by the days the tenant occupies the unit. $1,500 ÷ 30 × 13 days = $650.

How is prorated rent calculated when moving out?

Count from the 1st of the month to the move-out day, including that day, and multiply by the daily rate. Moving out on the 10th of a 30-day month at $1,500 rent costs $500.

Does the move-in day count as a rent day?

Yes, in most leases the tenant pays for the day they get the keys. This calculator counts both the move-in day and the move-out day.

Which proration method is most common?

Dividing by the actual days in the month is the most common. Some landlords use a 30-day month for simplicity, and some use rent × 12 ÷ 365 so every day of the year costs the same.

How do I prorate rent for February?

Use the 28 days (29 in a leap year) of February. Moving in on the 15th at $1,500 rent is 14 days: $1,500 ÷ 28 × 14 = $750.00. With a 30-day month it would be $700.00, and with rent × 12 ÷ 365 it would be $690.41, so the method matters most in February.

Is a landlord required to prorate rent?

Not always. Whether rent is prorated depends on the lease and on state or local rules, so check the lease first.

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