Oklahoma 1099-NEC Filing Requirements, Tax Year 2026
What Oklahoma requires from businesses filing 1099-NEC (Nonemployee compensation) for tax year 2026: deadline, accepted format, CF/SF treatment, registration, and penalties, backed by primary-source citations.
Filing requirements
Oklahoma requires direct filing of 1099-NEC with the state for tax year 2026. Federal filing through the IRS Combined Federal/State Filing (CF/SF) Program does not, on its own, satisfy the Oklahoma requirement for 1099-NEC; a separate state submission is required.
Form 1099-NEC must be filed directly with the Oklahoma Tax Commission through OkTAP — it is not part of the IRS Combined Federal/State Filing program. Upload an IRS Publication 1220 text file via the OkTAP W-2/1099/500 Filing Center. Paper is not accepted. Due January 31.
Conditional rules
Specific scenarios that change the baseline requirement above:
| Condition | Explanation |
|---|---|
| 1099-NEC cannot be filed via the Combined Federal/State Filing program |
Unlike all other 1099 series forms, Form 1099-NEC is not eligible for the IRS Combined Federal/State Filing (CF/SF) program in Oklahoma. Payers must upload 1099-NEC files directly to the Oklahoma Tax Commission through OkTAP using the IRS Publication 1220 layout. Opting into CF/SF for 1099-NEC does not satisfy the Oklahoma filing requirement. |
| Direct filing required when box 1 amount is $750 or more |
Per OK Form 501 (Annual Information Return) Rev 2025 instructions: "Persons making payments to professional individuals should report them when they amount to $750 or more in the calendar year." Combined with OK's exclusion of 1099-NEC from the CF/SF program ("1099-NEC is not part of CF/SF program and must be submitted directly to OTC"), 1099-NEC must be filed directly to the Oklahoma Tax Commission via OkTAP whenever box 1 amount is $750 or more — regardless of whether OK income tax was withheld. |
Deadlines and extensions
Accepted format
Fire
Filed directly with the OTC via OkTAP's W-2/1099/500 Filing Center. Upload format is the IRS Publication 1220 text file (T/A/B/C/K/F records, 750 chars per record, ≤ 200 MB, no encryption). 1099-NEC is **not** eligible for CF/SF and cannot be routed through the IRS.
Filing portal: OkTAP — Oklahoma Taxpayer Access Point (https://oktap.tax.ok.gov/), W-2/1099/500 Filing Center
Transmittal form required: Form 501 (Annual Information Return) — used to summarize Form 500-B filings; OK does not require a separate 1099 transmittal beyond the Pub 1220 'A' / 'C' / 'K' header records embedded in the OkTAP upload
E-file threshold: 1 or more forms must be e-filed.
Registration
Registration required: Yes
Late-filing penalties
Oklahoma penalty overview
Paper prohibition. Paper copies of Forms 1099, 501, 500-B, W-2, and W-3 are not accepted; all returns must be submitted electronically through OkTAP.
Late annual reconciliation penalty. Failure to provide an annual reconciliation within 30 days of the due date may result in a penalty up to $1,000 (68 O.S. § 2385.3(D)). The OTC FAQ applies the same $1,000 / 30-day cap to W-2/W-3 filings.
1099-NEC. Must be filed directly with OTC via OkTAP; 1099-NEC is not eligible for the IRS Combined Federal/State Filing program.
Frequently asked questions
Does Oklahoma require filing of 1099-NEC for tax year 2026?
Does Oklahoma participate in the CF/SF program?
What is the Oklahoma 1099-NEC filing deadline for tax year 2026?
What format does Oklahoma accept for 1099-NEC?
Do I need to file 1099-NEC with Oklahoma if I also filed federally?
What happens if I miss the Oklahoma 1099-NEC deadline?
How do I register to file with Oklahoma?
Source citations
“Participate in the IRS Combined Federal/State filing (CF/SF) program. [1099 ONLY with exception to 1099-NEC.”
“What is the filing deadline for 1099s? 1099-R March 31 1099-INT March 31 1099-DIV March 31 1099-OID March 31 1099-B March 31 1099-G March 31 1099-MISC March 31 1099-NEC January 31”
“Verify your records are in the correct order. File must contain "T" transmitter record, "A" payer record, at least one "B" payee record, "C" end of payer record, at least one "K" state total record, and "F" end of transmission record. Each record must be 750 characters.”
“OK Form 501 Annual Information Return (Rev 2025) instructions: "...should report the following payments when these payments amount to $750 or more in the calendar year: interest, rent, dividends, annuities, gambling winnings, or other fixed or determinable or periodical gains, profits or income." "Professional Payments — Persons making payments to professional individuals should report them when they amount to $750 or more..." "NOTE: Do Not File Form 501 for any 1099 forms electronically filed with the Internal Revenue Service (IRS) if you participate in the Combined Federal/State Filing (CF/SF) Program."”
“[1099 ONLY with exception to 1099-NEC. 1099-NEC is not part of CF/SF program and must be submitted directly to OTC.]”
Additional notes
Oklahoma requires all 1099 reporting to be submitted electronically via OkTAP — paper 1099s are no longer accepted. Filers can satisfy most 1099 obligations either by (a) participating in the IRS Combined Federal/State Filing (CF/SF) program (state code 40), which forwards 1099-MISC, 1099-DIV, 1099-INT, 1099-R, 1099-B, 1099-G, and 1099-OID to Oklahoma automatically, or (b) uploading an IRS Publication 1220-format text file directly through the OkTAP W-2/1099/500 Filing Center. Form 1099-NEC is not part of the CF/SF program and must always be filed directly with the OTC via OkTAP. 1099-NEC is due January 31; all other 1099 forms are due March 31.
Scope: Original 1099 filings with no Oklahoma state income tax withheld. State agencies revise rules without notice; verify with the Oklahoma state agency directly before you file.
This page is general information only, not legal, tax, or accounting advice. You are solely responsible for verifying your filing obligations with the state agency or a qualified tax professional.
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