Prorated rent is a partial month’s charge that bills a resident only for the days they occupy the unit when moving in or out mid-cycle. It’s a fair, transparent way to handle move-ins that don’t start on your normal billing date.

Divide monthly rent by the number of days in the month to get a daily rate, then multiply by the number of billable days. If the period spans two months, calculate each month’s daily rate separately and add the totals. The calculator handles this automatically.

Set your normal “Bill On” day (e.g., the 15th). The calculator counts from the move-in date through the day before the next billing cycle, even when that cycle lands mid-month.

Daily rates are based on the actual length of each month. If the proration window crosses into a new month, the tool recomputes that month’s daily rate and sums everything correctly—including February 29 in leap years.

If a month doesn’t include the 31st, most leases treat the last calendar day as the cycle boundary. The calculator automatically uses the final valid day for that month.

Best practice is to include proration language and the initial prorated amount in the lease or move-in ledger so expectations are clear and disputes are reduced.

Yes. Residents commonly request proration when moving in after your billing date or moving out before the end of a cycle. Always follow your lease and local/state laws.

Yes. Use the resident’s last day of occupancy and your “Bill On” day—the tool computes the portion owed based on actual days occupied through the cycle boundary.

Proration typically applies to base rent. Deposits and one-time fees (e.g., admin, pet, parking) are separate per your lease and local rules—keep them as distinct line items on the ledger.

Requirements vary by jurisdiction. Many leases permit or specify proration, but local ordinances may affect how you apply it. When in doubt, follow your lease language and local guidance.