View the Employer Withholding Tool. This tool must be used by all employers who are withholding Walker income tax to register, file W2 and WW-3s, and pay withholding 941/501 payments, as well as to print monthly and/or quarterly vouchers or to pay electronically.
NOTE: Do not electronically file WW-3 until W-2s are uploaded.
The website includes links for both 2025 and 2026 withholding. Please make sure you are entering your payment information into the correct year.
Walker WW-3 forms with required copies of form(s) W-2 for tax year 2025 are due February 28, 2026. Click here to print and view a blank WW-3 form.