Prorated Rent Calculator

Exact mid-month rent, both methods compared.

The numbers
Calculation method

Use whichever your lease specifies. Most leases use actual days.

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Related tools: Rent Receipt · Late Rent Notice · Condition Report

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This free calculator is informational, not legal or financial advice — proration terms are set by your lease. See our Privacy Policy and Terms of Use.

Questions people ask

What is prorated rent?
Prorated rent is a partial month's rent charged when a tenant moves in or out mid-month, so they pay only for the days they actually occupy the unit.
How do you calculate prorated rent?
Divide the monthly rent by the number of days to get a daily rate, then multiply by the days occupied. Actual-days method: rent ÷ days in that month × days occupied. 30-day method: rent ÷ 30 × days occupied.
Is a landlord required to prorate rent?
Generally it depends on the lease — most states don't mandate proration, but leases commonly provide for it and it's standard practice for mid-month moves.
Which method should I use?
Whichever your lease specifies. Most leases use actual days in the month; some use a 30-day (banker's) month for consistency. The calculator shows both so you can see the difference.
Does prorated rent include the move-in day?
Yes — the move-in day is customarily counted as an occupied day, since the tenant has possession from that day.