The rules
| Forms filed with the state | 1099-NEC, 1099-MISC, 1099-R, 1099-INT, 1099-DIV, 1099-OID, 1099-B, 1099-G (plus W-2/W-3 and Oklahoma Forms 500-B and 501). Form 501 instructions: report payments of $750 or more per year to residents, $750 or more of Oklahoma-source payments to nonresidents, and royalties of $10 or more. |
| Who must file | All payors making reportable Oklahoma payments (residents, or Oklahoma-source to nonresidents), including tax-exempt organizations and governments, whether or not Oklahoma tax was withheld. Files must contain Oklahoma information only. |
| Due date | 1099-NEC: January 31. All other 1099s: March 31 (OTC help center). Older Form 501 instructions cite February 28; nonresident royalty statements (1099-MISC or 500-A with Form 501) January 31. |
| How | OkTAP W-2/1099/500 Filing Center (Pub 1220 .txt, up to 200 MB). Paper 1099s, 501, 500-B, W-2 and W-3 are no longer accepted, so e-filing applies to all payors. Annual information return Form 501 for W-2/1099 uploads; Oklahoma Forms 500-B and 501 are outside CF/SF and must go through OkTAP. |
| State 1099-K threshold | None. |
| Nonresident withholding | Nonresident royalty withholding: remitters must withhold Oklahoma tax at the top individual rate on oil and gas royalties paid to nonresident royalty owners, file quarterly returns, and send annual statements (1099-MISC or Form 500-A) to owners and OTC by January 31. Pass-through entities withhold on nonresident members (Form 500-B). |
- OTC states it participates in CF/SF for 1099s except 1099-NEC, which ‘must be submitted directly to OTC’; other 1099 types may be satisfied via CF/SF.
- The $750/$10 thresholds and February 28 date come from the current Form 501 instructions PDF, which may lag the help-center dates.
Questions people ask about Oklahoma
Do I have to file 1099s directly with Oklahoma?
Yes, when Oklahoma tax was withheld on the payment. Even without withholding, Oklahoma requires a direct filing in some cases. All payors making reportable Oklahoma payments (residents, or Oklahoma-source to nonresidents), including tax-exempt organizations and governments, whether or not Oklahoma tax was withheld. Files must contain Oklahoma information only.
Which 1099 forms does Oklahoma require?
1099-NEC, 1099-MISC, 1099-R, 1099-INT, 1099-DIV, 1099-OID, 1099-B, 1099-G (plus W-2/W-3 and Oklahoma Forms 500-B and 501). Form 501 instructions: report payments of $750 or more per year to residents, $750 or more of Oklahoma-source payments to nonresidents, and royalties of $10 or more.
When are 1099s due in Oklahoma?
1099-NEC: January 31. All other 1099s: March 31 (OTC help center). Older Form 501 instructions cite February 28; nonresident royalty statements (1099-MISC or 500-A with Form 501) January 31.
How do I file 1099s with Oklahoma?
OkTAP W-2/1099/500 Filing Center (Pub 1220 .txt, up to 200 MB). Paper 1099s, 501, 500-B, W-2 and W-3 are no longer accepted, so e-filing applies to all payors. Annual information return Form 501 for W-2/1099 uploads; Oklahoma Forms 500-B and 501 are outside CF/SF and must go through OkTAP.
Does Oklahoma have its own 1099-K threshold?
None.
Does Oklahoma require withholding on payments to nonresident contractors?
Nonresident royalty withholding: remitters must withhold Oklahoma tax at the top individual rate on oil and gas royalties paid to nonresident royalty owners, file quarterly returns, and send annual statements (1099-MISC or Form 500-A) to owners and OTC by January 31. Pass-through entities withhold on nonresident members (Form 500-B).
Verified September 24, 2026 against https://oklahoma.gov/tax/helpcenter/taxdocs.html. One or more items could not be confirmed on the state site and are marked in the table; Rules change annually and most states had not yet posted 2026 specifications at the time of review; confirm before filing.
What does not change by state
TIN matching, B-Notices, backup withholding and the IRC 6721 penalty are federal. A payee in Oklahoma who gives you a name/TIN pair that does not match IRS records produces the same CP2100 line as one anywhere else, and the same 15- and 30-business-day clocks. State filing is a separate obligation layered on top.