Calculate your partial month rent for any move-in or move-out date.
Prorated rent is a partial month's rent calculated based on the number of days you actually occupy the unit during a partial month. If you move in on the 15th of a 30-day month and your monthly rent is $1,500, your prorated rent for that month is $750 (15 days out of 30, at $50/day). Prorating ensures you only pay for the days you actually have access to the apartment.
Enter your monthly rent, the number of days in the month, and the number of days you will be occupying the unit. The calculator shows your prorated amount using the daily rate method (monthly rent divided by days in the month, multiplied by days occupied). It handles both move-in and move-out proration.
Proration most commonly applies when you move in mid-month, move out mid-month, or when your lease starts or ends on a date other than the 1st. Most landlords use the daily rate method (dividing by actual days in the month), though some use a 30-day standard month. Always confirm the proration method with your landlord before signing the lease.
Rent proration calculates a fair partial-month payment when you move in or out mid-month. The most common methods are: calendar-day method (monthly rent / days in the month x days occupied), 30-day method (monthly rent / 30 x days occupied), and banking method (monthly rent / 365 x days occupied x 12). The calendar-day method is the most equitable because it accounts for the actual number of days in the month. For a $1,500 monthly rent with a January 15 move-in: calendar-day gives $822.58 (17/31 x $1,500), while 30-day gives $800 (16/30 x $1,500). Most states do not specify which method landlords must use, so check your lease agreement. Security deposits are typically full-month amounts regardless of prorated first-month rent.