Prorated Rent Calculator
Calculate partial month rent due for mid-month move-ins or move-outs. Compare exact calendar days, banker 30-day conventions, and annual 365-day lease standards.
Covers exactly 16 occupied days in September at $66.67/day.
From September 15 through September 30 (inclusive). Next full rent payment is due on the 1st of the following month.
How Landlords & Property Managers Prorate Rent
When entering into a lease contract mid-month, you should never be billed for days prior to receiving physical access. Here are the three recognized calculation standards across US real estate:
Daily rate is adjusted dynamically based on whether the move occurs in a 28, 29, 30, or 31-day month. This is the legal gold standard.
Every month is assumed to have exactly 30 days. In 31-day months (January, July, August), this method yields a higher daily rate than exact days.
Annualizes the lease (Monthly × 12) and divides by 365.25. Common in institutional corporate leases and commercial retail properties.
Frequently Asked Questions About Prorated Rent
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