Oklahoma Late Fee Calculator
Based on Okla. Stat. tit. 15 §266 (legal rate of interest)
QuickBillMaker applies late fees automatically based on your configured policy. Set it once and stop chasing payments by hand.
How Oklahoma late fees work
In Oklahoma, late payment fees on commercial invoices are governed by Okla. Stat. tit. 15 §266 (legal rate of interest). The legal maximum is 1.5% per month (18% annualized). Legal rate 6% per year; written contracts may set higher (no statutory cap on commercial).
The fee must be stated in a written agreement before the work is performed. Without a written rate, only the statutory default rate applies.
Oklahoma prompt-pay law
Oklahoma Prompt Payment Act (Okla. Stat. tit. 62 §41.4a for state; tit. 61 §221 for construction) State: 45 days from invoice. Construction subs paid within 10 days of GC receiving payment; 1.5% per month interest.
Stop calculating late fees by hand
QuickBillMaker applies your Oklahoma late fee rate automatically when invoices go overdue.
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