The Renter's Ledger
Combine flat and daily charges to see the possible total and compare it with your monthly rent.
Enter your numbers
Estimated late fee
$400.00
This equals 16.7% of the monthly rent entered. Check the lease for grace periods and caps.
Change any input and calculate again to compare another scenario.
Check your lease
A late fee can combine a one-time charge with a daily amount. Enter both charges and the number of late days to see the total fee and its percentage of monthly rent. This is a math tool, not a determination that a fee is permitted or enforceable in your location.
Need help finding the relevant clause? Review it with LeaseGuard.Total late fee = flat fee + daily fee x chargeable late days.
This is a planning estimate based on the numbers you enter. The lease, timing rules, and local requirements may affect the real amount or deadline.
Change an input and calculate again to compare another scenario.
After 10 chargeable days, the arithmetic total is $400.
On $2,400 rent, a $400 fee equals about 16.7% of one month's rent.
Multiply the daily charge by the number of chargeable days, then add any one-time late fee.
It may. Enter only the days for which the lease says the daily fee accrues, after considering the written grace period.
This calculator does not make that determination. Late-fee limits, grace periods, and lease requirements vary by jurisdiction.
Last reviewed August 8, 2026 · This calculator provides an informational estimate and is not legal, financial, tax, or housing advice.
