Late rent fee calculator with partial payments

Check whether a late fee applies to a rent payment, including a partial payment, and how much is still due.

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How it works

The unpaid balance is the monthly rent minus what was paid within the grace period.

Days late is the later date minus the due date, in calendar days, so rent due on the 1st and paid on the 4th is 3 days late. In a leap year, the extra day counts.

The grace period counts from the due date. A fee applies only when the days late are more than the grace days. With 5 grace days, 5 days late has no fee and 6 days late gets the full fee. Some leases count grace differently.

A flat fee is the dollar amount entered, whatever was paid. A percent fee is the chosen base times the percent, divided by 100, rounded to the cent. The base is the unpaid balance or the full monthly rent, as the lease says. A percent of the full rent can surprise after a partial payment, because the fee does not shrink. This tool doesn't add a fee for each day late.

FAQ

How does a partial payment change the late fee? Enter the amount paid within the grace period. The unpaid balance is the monthly rent minus what was paid within the grace period. If the rent was paid in full within the grace period, no late fee applies. A flat fee is the dollar amount entered, whatever was paid. A percent fee uses the unpaid balance or the full monthly rent, as the lease says. A percent of the full rent can surprise after a partial payment, because the fee does not shrink.

When does the grace period end? The grace period counts from the due date. A fee applies only when the days late are more than the grace days. With 5 grace days, 5 days late has no fee and 6 days late gets the full fee. Some leases count grace differently.

Does it add a fee for each day late? No. This tool doesn't add a fee for each day late. It works out one flat or percent fee. Late-fee limits vary by location. Check your local law and your lease.

What if the tenant owes rent for several months? To total unpaid rent across several months, the back rent calculator builds a month-by-month table.