Wisconsin Compliance and Regulatory Resources

Paychex helps simplify HR compliance with resources like our enhanced HR library and automated compliance notifications for Wisconsin businesses. Explore requirements like minimum wage, workers’ comp, and more.

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State Tax Rates and Limits

State Supplemental Withholding Rate*
3.54% or $4.65% or 5.30% or 7.65%
2026 WI Withholding Tables

State Unemployment Taxable Wage Base Limit
$14,000

State Unemployment Rate Range for Employers
0.0% to 12.0% (rate can vary by small/large firms)

State Unemployment New Employer Rate
New Employer 3.05% to 3.25%; Construction 2.50% to 2.70%

State Hourly Minimum Wage
$7.25 (Special rules apply to minimum wage standards for this state. Refer to state laws.)

State Minimum Wage for Tipped Employees
$2.33 (Special rules apply to minimum wage standards for this state. Refer to state laws.)
WI wage and hour information

State Tax ID Registration

Withholding and State Unemployment Insurance (SUI) Registration

All Taxpay® clients are required to have an active Wisconsin Withholding and Unemployment Insurance (SUI)Tax account numbers to file electronically with Wisconsin Department of Revenue and Department of Workforce Development.

Register a New Business

Visit the One Stop Business Portal.
In the Continue Creating My Business box, click Need a WAMs ID? and create an online account.
Sign into One Stop Business Portal and complete the steps for the registration for both Tax types.
- Register for a Withholding Tax Account and Unemployment Insurance (UI) Tax account.
Your new Tax IDs may arrive at different times.
- Withholding Tax ID:
  - Allow up to two days to receive the Withholding Tax ID via email.
  - Account Number format:036-XXXXXXXXXX-XX(15Digits)
- SUI Tax ID:
  - Available immediately after completing the registration.
  - Account Number format:XXXXXX-000-X(10Digits)
Enter your new account number in your Paychex Flex® account and email your registration confirmation documents to your Paychex Service Professional.
- Refer to Updating Tax IDs for instructions on how to update the information in the application.

Finding an Existing ID

If you have a Wisconsin Tax IDs but aren’t sure what it is, you should be able to find it on:

One Stop Business Portal account.
Any correspondence from the Wisconsin Department of Revenue and Department of Workforce Development.
Previously filed returns.

Additional Resources

Workplace Safety

OSHA
Wisconsin is under federal OSHA jurisdiction that covers most private-sector workers within the state. State and local government workers are not covered by federal OSHA. Additional information available

Workers' Compensation

Coverage is mandatory for employers with three (3) or more employees or one (1) or more employees to whom you have paid combined gross wages of $500 or more in any calendar year.