Prorated rent calculator
Enter the monthly rent and the move-in or move-out date. You get the prorated rent three ways, side by side, so you can pick the method your lease uses. Free, no sign-up.
How each method works
- Actual days in the month. Daily rent is the monthly rent divided by the number of days in that month (28, 29, 30 or 31). Rent for a part month is the daily rent times the days the tenant has the home. The daily rent changes from month to month, but a full month always adds up to exactly one month of rent.
- 30-day month. Daily rent is the monthly rent divided by 30 in every month. It is easy to do by hand, but in a 31-day month a tenant who moves in on the 1st would owe more than one month, so this page never shows more than the monthly rent.
- 365-day year. Daily rent is the monthly rent times 12, divided by 365. It gives the same daily rent all year, and a part month is that daily rent times the days.
Which days are counted
This calculator counts both end days. For a move-in, it counts the move-in day through the last day of that month. For a move-out, it counts the 1st through the move-out day. It assumes rent is due on the 1st and is charged for a part month at either end of the lease. If your lease counts days differently, for example it does not charge for the move-out day, change the date by one day.
Which method should you use?
Use the method your lease says. Some states and leases name a method, and many leases are silent. If the lease is silent, pick one method, write it into the lease and use it the same way for every tenant. Your state or city may have its own rule, so read your local landlord-tenant law.
Questions
How do you calculate prorated rent?
Divide the monthly rent by the number of days in the month (or by 30, or use the monthly rent times 12 divided by 365), then multiply by the number of days the tenant has the home. For example, rent of $1,500 and a move-in on June 16 gives 15 days of 30, so $750.00 by actual days.
Does the calculator handle leap years?
Yes. By actual days, February has 29 days in a leap year such as 2028, so the daily rent is the monthly rent divided by 29. The 365-day method uses 365 days in every year.
Is the move-out day counted?
This calculator counts it, so a move-out on the 10th is 10 days of rent. If your lease says the tenant is out by noon and you do not charge for that day, use the day before.
No statute is cited: proration is a matter of the lease and local law. This is general information, not legal advice.