Wisconsin Tax Year 2026

Wisconsin 1099-NEC Filing Requirements, Tax Year 2026

What Wisconsin 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.

Tax Year 2026 Federal filing satisfies this state Last verified April 26, 2026
Filing method CF/SF satisfies IRS CF/SF submission covers Wisconsin.
Deadline January 31 See deadlines section for holiday rollover. See deadlines
Format accepted Not applicable Federal CF/SF filing covers this state. See format
Late-filing penalty **Late or incorrect filing:** $10 per violation for failure to file a wage statement or information return by the due date (including ext... See penalties

Filing requirements

Federal filing through the IRS Combined Federal/State Filing (CF/SF) Program satisfies Wisconsin's 1099-NEC reporting requirement for tax year 2026. No separate state submission is required when the IRS forwards the record to Wisconsin under CF/SF.

Wisconsin requires Form 1099-NEC for payments to Wisconsin residents (any work location) and to nonresidents for services performed in Wisconsin. Participation in the IRS CF/SF program (state code 55) satisfies the Wisconsin filing requirement; however, any 1099-NEC reporting Wisconsin withholding must be filed directly with DOR by January 31 along with Form WT-7. Filers of 10 or more must file electronically.

Conditional rules

Specific scenarios that change the baseline requirement above:

ConditionExplanation
Mandatory electronic filing for 10 or more 1099-NECs

Filers of 10 or more wage statements or 10 or more of any one type of information return must file electronically with DOR (Wis. Adm. Code Tax 2.04(6)(a); Wis. Stat. 71.80(20)). Failure to e-file when required incurs a $10 per-statement penalty. Hardship waiver via Form EFT-102 must be requested at least 30 days before the due date.

Direct filing recommended to avoid IRS forwarding delays

Wisconsin DOR may not receive Forms 1099 from the IRS for several months, which can delay processing of a payee's income tax return. To avoid that delay, payers can file directly with the department by January 31 instead of relying on CF/SF.

Deadlines and extensions

Filing deadline
January 31
Holiday/weekend rollover. If the deadline falls on a weekend or a federal holiday, the next business day generally applies. Check with Wisconsin for the exact observed calendar before filing.

Extensions

Late or incorrect filing: $10 per violation for failure to file a wage statement or information return by the due date (including extensions) or for filing an incorrect/incomplete return. Penalty does not apply to W-2G.

Failure to e-file when required: $10 per statement/return for filers required to file electronically (10 or more) who file on paper.

Refund delay: Wisconsin DOR may not issue an employee refund before March 1 unless both employer and employee have filed all required returns and forms.

Waivers from the e-file mandate require Form EFT-102 received at least 30 days before the filing due date demonstrating undue hardship.

Accepted format

Federal filing through the IRS Combined Federal/State Filing Program satisfies Wisconsin's 1099-NEC requirement. No separate state submission is required, so there is no state-specific file format to conform to. The IRS transmits 1099-NEC records to Wisconsin automatically after accepting the CF/SF submission.

Registration

Registration required: Yes

A 15-digit Wisconsin withholding tax account number (TAN) is required on each W-2/1099 reportable to Wisconsin. Payers who never withheld and never held a Wisconsin TAN must use the generic TAN 036888888888801; that generic TAN cannot be used to file the WT-7 reconciliation if any Wisconsin tax was withheld. EFW2/1099 Data File Transfer does not require a PIN or password (only the submitter email).

Late-filing penalties

Wisconsin penalty overview

Late or incorrect filing: $10 per violation for failure to file a wage statement or information return by the due date (including extensions) or for filing an incorrect/incomplete return. Penalty does not apply to W-2G.

Failure to e-file when required: $10 per statement/return for filers required to file electronically (10 or more) who file on paper.

Refund delay: Wisconsin DOR may not issue an employee refund before March 1 unless both employer and employee have filed all required returns and forms.

Waivers from the e-file mandate require Form EFT-102 received at least 30 days before the filing due date demonstrating undue hardship.

Frequently asked questions

Does Wisconsin require filing of 1099-NEC for tax year 2026?

Wisconsin accepts 1099-NEC through the IRS Combined Federal/State Filing Program, so a separate state submission is generally not required when you file federally under CF/SF.

Does Wisconsin participate in the CF/SF program?

Yes. Wisconsin participates in the IRS Combined Federal/State Filing Program and accepts CF/SF submissions from the IRS for most 1099 form types.

What is the Wisconsin 1099-NEC filing deadline for tax year 2026?

The filing deadline is January 31. If the date falls on a weekend or federal holiday, the next business day generally applies.

What format does Wisconsin accept for 1099-NEC?

Because CF/SF filing satisfies Wisconsin, the IRS's standard electronic submission (FIRE/IRIS) is the operative format; no state-specific upload is required.

Do I need to file 1099-NEC with Wisconsin if I also filed federally?

Generally no. Federal filing through CF/SF satisfies Wisconsin's 1099-NEC requirement, so a separate state filing is typically not needed.

What happens if I miss the Wisconsin 1099-NEC deadline?

**Late or incorrect filing:** $10 per violation for failure to file a wage statement or information return by the due date (including extensions) or for filing an incorrect/incomplete return. See the full penalty details below for the complete schedule.

How do I register to file with Wisconsin?

A 15-digit Wisconsin withholding tax account number (TAN) is required on each W-2/1099 reportable to Wisconsin. See the registration section above for the full requirements.

Source citations

Verified from 7 primary sources
“"Payers must file certain types of 1099s with the Wisconsin Department of Revenue unless the payer participates in the Combined Federal/State Filing (CF/SF) program. However, even if you participate in the CF/SF program, you must submit 1099s with Wisconsin withholding directly to the Wisconsin Department of Revenue by January 31." “To avoid this delay, payers can file directly with the department using one of the methods listed in Section 4.””
“"Payers must file certain types of 1099s with the Wisconsin Department of Revenue unless the payer participates in the Combined Federal/State Filing (CF/SF) program. However, even if you participate in the CF/SF program, you must submit 1099s with Wisconsin withholding directly to the Wisconsin Department of Revenue by January 31." “To avoid this delay, payers can file directly with the department using one of the methods listed in Section 4.””
“If a payer participates in the combined federal/state filing program for Forms 1099, the department shall waive the requirement to file those Forms 1099 or comparable information returns electronically, unless the form reports Wisconsin withholding.”
“Forms W-2, W-2G, 1099-MISC, 1099-NEC, 1099-R, and 9b, as provided in Chart 1, must be filed with the department.”
“1099-R, 1099-MISC, 1099-NEC, 1099-K, and W-2G files in Internal Revenue Service (IRS) format as shown in IRS Publication 1220.”
Conditional: Mandatory electronic filing for 10 or more 1099-NECs
“Under s. 71.80 (20), Stats., if a person is required to file 10 or more wage statements or 10 or more of any one type of information return with the department, the person shall file the statements or the returns electronically, by means prescribed by the department.”
Conditional: Direct filing recommended to avoid IRS forwarding delays
“The department may not receive Forms 1099 from the IRS for several months, which may delay the processing of a payee's income tax return. To avoid this delay, payers can file directly with the department using one of the methods listed in Section 4 by January 31.”

Additional notes

Wisconsin requires Forms W-2, W-2G, 1099-MISC, 1099-NEC, 1099-R (and Form 9b) to be filed with the Department of Revenue for payments to Wisconsin residents (any work location) or to nonresidents for services performed in Wisconsin. Forms 1099-DIV, 1099-INT, and 1099-K are required only when Wisconsin income tax has been withheld. Wisconsin participates in the IRS Combined Federal/State Filing Program (CF/SF state code 55), and CF/SF participation satisfies the Wisconsin filing requirement — except that any 1099 reporting Wisconsin withholding must still be filed directly with DOR by January 31. Filers of 10 or more wage statements or 10 or more of any one type of information return must file electronically. The annual reconciliation Form WT-7 is required from every employer that withheld Wisconsin tax and must be filed electronically by January 31 (February 2 in 2026).

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