Invoicing in Oklahoma

Built-in handling of OK sales tax (4.5% state rate) and statutory late fees.

State sales tax
4.50%
Late fee max
1.5%/mo
Metros covered
4
Written contract req.
No
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Oklahoma compliance at a glance

  • Sales tax: 4.50% state rate. State 4.5%; combined commonly 8-10%.
  • Late fees: Up to 1.5% per month. (Okla. Stat. tit. 15, §266) Default 6%/yr; contract rates up to 10%/yr without supervised licensing.
  • 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.

Oklahoma metros

Oklahoma guides