Prorated Rent Calculator
Moving in or out mid-month? Enter the monthly rent and the date, and get the prorated amount instantly, with the math shown so you can explain it to your tenant.
Prorated rent
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How prorated rent works
Prorated rent is rent for part of a month. You work out a daily rate from the monthly rent, then multiply it by the number of days the tenant actually occupies the unit. The calculator counts the move-in date and the move-out date as days the tenant pays for.
There are three common ways to calculate the daily rate, and they give slightly different answers:
| Method | Daily rate | Best for |
|---|---|---|
| Actual days in month | Rent ÷ days in that month (28–31) | Most common; easiest to explain to tenants |
| 365-day year | Rent × 12 ÷ 365 | Consistent daily rate all year |
| 30-day month | Rent ÷ 30 | Simple math; some leases specify it |
Example
Rent is $1,500 and the tenant moves in on September 20. September has 30 days, so the daily rate is $1,500 ÷ 30 = $50. The tenant occupies the unit for 11 days (the 20th through the 30th), so the prorated rent is 11 × $50 = $550.
Tips for landlords
- Write the method into your lease. Saying which method you use avoids disputes at move-in and move-out.
- Decide on the first full month. Many landlords collect the prorated amount plus the first full month at move-in. If the move-in is late in the month, some collect the prorated amount with the next month's rent instead.
- Give a receipt. Send a rent receipt that shows the partial-month calculation so there's no confusion later.
- Line up the due date. Prorating lets every tenant pay on the same day, which makes reminders and tracking much simpler.
Frequently asked questions
Is a landlord required to prorate rent?+
Generally not, unless your state, local law or lease requires it. Most landlords prorate the first month anyway because it's fair and keeps the due date consistent. For move-outs, a tenant who gives proper notice usually owes rent through the end of the notice period.
Which proration method is most accurate?+
The actual-days method is the most accurate for a specific month and the one most tenants expect. The 365-day method gives the same daily rate all year, which some landlords prefer for consistency.
Do you count the move-in day?+
Yes. The tenant has possession on the move-in day, so it's normally counted as a paid day. This calculator includes both the move-in day and the move-out day.
Related resources
Let Ping send the reminders for you
Ping emails your tenants before rent is due, on the due date, and follows up automatically if it's late. Free while we're in early access.