To sign up for Square’s online payroll service in Wisconsin, you must be registered with the Wisconsin Department of Revenue and Department of Workforce Development so we can pay and file your state taxes.

Agency Tax ID Tax ID Format
Wisconsin Department of Revenue Wisconsin Department of Revenue Tax Number 036 XXXXXXXXXX XX
Wisconsin Department of Workforce Development Wisconsin Department of Workforce Development UI Account Number XXXXXX-XXX-X (10 digits)

Wisconsin New Employer Registration

Wisconsin Department of Revenue

  1. Register online with the Department of Revenue by selecting Register Qualified WI Business.
  2. It generally will take a few business days for you to receive your tax number.
  3. For more information, visit the Department of Revenue website.

Wisconsin Department of Workforce Development

  1. Register online with the Department of Workforce Development (DWD) by clicking New Employer Registration.
  2. Upon successfully completing online registration, you will receive your DWD UI Account Number.
  3. If you have issues with registration or cannot locate your DWD UI Account Number after registering, call: 608-261-6700

Wisconsin Employer Tax Rate

  1. The default tax rate for new employers is 3.25%.
  2. This is the total of your Basic Tax Rate and Solvency Rate.
  3. You can locate this online by logging into your DWD account.
  4. To confirm your tax rate, call: 608-261-6700

Find Your Wisconsin Tax ID Numbers and Rates

Department of Revenue Tax Number

  1. Look up your Department of Revenue Tax Number online by selecting “Look up account number and filing frequency.”
  2. Locate your Department of Revenue Tax Number on any previously filed quarterly tax return (WT-6).
  3. Call the Department of Revenue: 608-266-2776

DWD UI Account Number

  1. Log in to your DWD account.
  2. Locate your DWD UI account number on any previously filed quarterly report (Form UCT-101-E).
  3. Call the DWD: 608-261-6700

Wisconsin Employer Tax Rate

  1. Log in to your DWD account to locate your Employer Tax Rate online.
  2. This is the total of your Basic Tax Rate and Solvency Rate.
  3. To confirm your tax rate, call: 608-261-6700

You are responsible for ensuring Square Payroll has the correct tax ID numbers and tax rates for your business. Please contact us if you need to update either of your tax ID numbers or your UI rate.

Wisconsin Payroll Tax Details

Agency Name Frequency
Department of Revenue Withholding Tax Deposit Report (WT-6) Per Pay Run
Employer’s Annual Reconciliation of Wisconsin Income Tax Withheld from Wages (WT-7) Annually
Wage and Tax Statement (W-2) Annually
Department of Workforce Development Unemployment Insurance Tax Payment Quarterly
Quarterly Contribution Report (UCT-101) Quarterly
Quarterly Wage Report (UC-7823) Quarterly
New Hire Reporting Center New Hire Report (WT-4) Per New Employee

Learn how to locate or obtain an EIN.

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