Table of Contents

1099 E-Filing: Wisconsin

Nina Tchistiakova Updated by Nina Tchistiakova

Due date

January 31

E-filing threshold

Must E-file if 10 or more

Filing options

Electronic filing

Forms to file

1099-R, 1099-MISC, 1099-NEC, and W-2G

Transmittal form

If the forms report Wisconsin withholding, you must also file the annual withholding reconciliation, WT-7, by January 31.

Required file name

Specifications do not specify a file name.

E-filing website




Kelly Niesen

(608) 261-2261

Michael Ude

(608) 261-5161

Submitting files

Users must process only one form type at a time for state filing because when you upload the file you must select the form type on the website.

Before filing, verify the payer’s 15-digit withholding tax number, federal employer identification number and legal name using our account look-up. The department offers preparers the opportunity to verify certain client-related data via an online data exchange program. Payroll providers can use the withholding data exchange to inform the department of a new client and verify withholding tax account numbers and filing frequency information, including new filing frequency data for the upcoming year. Files are acted on as received. Results are returned the next business day.

Filers do not need to request prior authorization for electronic filing. If there are errors or problems with your file we will send a letter indicating the error(s). If you have any questions call (608) 266-2776 or send us an email at: w2data@revenue.wi.go.

If you do not have a Wisconsin withholding number and are not required to withhold, enter 036888888888801 in the wage or information return box titled "Employer State ID Number."

Employers may request a 30-day extension for filing W-2s and 1099s with the department.

• The test files maybe transmitted through our web site at however a test file is not required.

Transfer Instructions:

  1. Locate your Form W-2, 1099, or W-2G file on your PC or network.
  2. Click the Ready To Transfer link above.
  3. Select the appropriate option from the drop-down box.
  4. Make sure "Is this a test file" is checked "No."
  5. On the "Select the File" line, click on the Browse button to locate the file on your PC or network.
  6. Click Transfer to submit your file.

Note: Only files up to 50MB can be accepted. Files larger than 50MB should be zipped or divided into two or more files.A 13-digit confirmation number will be issued when the file has been accepted. If you receive an error message, the file has not been accepted. You must correct the errors and resubmit the file.

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