Calculate fair partial-month rent when a tenant moves in or out mid-month. Enter the monthly rent, days occupied and days in the month.
This uses the days-in-month method (monthly rent ÷ days in month × days occupied) — the most common and tenant-fair approach. Some leases use a flat 30-day month; check your agreement.
When a tenant moves in or out part-way through a month, they pay only for the days they occupy. Daily rate = monthly rent ÷ number of days in that month. Multiply by days occupied for the prorated amount. Always put the method in the lease to avoid disputes.
Monthly rent is $1,860 and April has 30 days. Daily rate = $1,860 ÷ 30 = $62/day. A tenant moving in on April 21st occupies 10 of those 30 days, so prorated rent = $62 × 10 = $620 for their partial first month, with the full $1,860 due from May 1st onward. Using the actual-days method instead of a flat 30-day month matters most in February and in 31-day months, where the daily rate — and therefore the prorated amount — can shift by a few dollars either way.
Divide the monthly rent by the number of days in the month to get a daily rate, then multiply by the days the tenant occupies the unit.
The fairest and most common method uses the actual days in that month. Some landlords use a flat 30-day banker's month — whichever you choose, state it in the lease.
A tenant moving in after the 1st, or moving out before month-end, pays prorated rent for their partial month.
RentFlow handles partial-month rent, due dates and reminders per tenant automatically. Free to start.
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