Prorated Rent Calculator
Calculate exactly how much rent a tenant owes for a partial month. Works for both move-in and move-out dates.
| Full monthly rent | $1,500.00 |
| Days in May 2026 | 31 days |
| Daily rate | $1,500.00 / 31 = $48.39 |
| Days from May 15 to May 31 | 17 days |
| Prorated rent owed | $48.39 x 17 = $822.58 |
How to Calculate Prorated Rent
Prorated rent is the amount a tenant pays when they don't occupy the unit for a full calendar month. This typically happens during move-in or move-out. The standard method is to divide the monthly rent by the number of days in that month, then multiply by the number of days the tenant will occupy the unit.
The formula: (Monthly Rent / Days in Month) x Days Occupied = Prorated Rent
For example, if monthly rent is $1,500 and a tenant moves in on January 15th: $1,500 / 31 days = $48.39/day. From the 15th through the 31st is 17 days. So the prorated rent is $48.39 x 17 = $822.58.
Some landlords use a 30-day month for simplicity, but the most accurate and legally defensible method uses the actual number of days in the calendar month. This calculator uses the actual days method and accounts for leap years.
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