Do it by

• Do it by Thu, Jan 30.
• Due 1 day later (Fri, Jan 31).
• Allow 1 day, for postal pickup.

Submission 

• Paper: Letter (8.5in x 11in)

• Employers can also submit reports online.
• Mail copies of the W-2 and 1099s, with a copy of an electronically filed KW-3 return, to:

  Withholding Tax
  Kansas Department of Revenue
  PO Box 758572
  Topeka KS  66612-1588
  

Notes

Manual

• This annual return is due on on or before January 31st of the succeeding calendar year.
• Employers must file this return even if there are no reportable wages or taxes due for the reporting period.
• Employers with 51 or more employees must file this reconciliation online.
• If the business closes during the year, then this is due within 30 days of the payment of the final wages or discontinuation of business.