Idaho Late Fee Calculator

Find the legal maximum late fee in Idaho. Based on Idaho Code §28-22-104 (legal rate of interest).

Max per month
1.5%
Annualized cap
18%
Written agreement
Required
Grace period
0 days
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Idaho Late Fee Calculator

Based on Idaho Code §28-22-104 (legal rate of interest)

Late fee owed$15.00

QuickBillMaker applies late fees automatically based on your configured policy. Set it once and stop chasing payments by hand.

How Idaho late fees work

In Idaho, late payment fees on commercial invoices are governed by Idaho Code §28-22-104 (legal rate of interest). The legal maximum is 1.5% per month (18% annualized). Legal rate is 5% above the average yield on US Treasury securities. Written commercial contracts may set higher.

The fee must be stated in a written agreement before the work is performed. Without a written rate, only the statutory default rate applies.

Idaho prompt-pay law

Idaho Prompt Payment Act (Idaho Code §67-2302) Payment due within 60 days of invoice receipt; interest at legal rate if late.

Stop calculating late fees by hand

QuickBillMaker applies your Idaho late fee rate automatically when invoices go overdue.

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