Wisconsin State Income Tax Withholding

Reference Number: NFC-22-1646766842
Published: March 8, 2022
Effective: Pay Period 04, 2022

Summary

The income tax withholding for the State of Wisconsin includes the following changes:

No action on the part of the employee or the personnel office is necessary.

Tax Formula

State Abbreviation:

WI

State Tax Withholding State Code:

55

Acceptable Exemption Form:

WT-4

Basis for Withholding:

State Exemptions

Acceptable Exemption Data:

S/M, Number of Exemptions

TSP Deferred:

Yes

Special Coding:

Determine the Total Number Of Allowances field as follows:

 First Position - Enter the employee's marital status indicated on the WT-4. S = Single; M = Married.

 Second and Third Positions - Enter the number of allowances claimed. If less than 10, precede with a 0 (zero).

Additional Information:

None

Withholding Formula (Effective Pay Period 04, 2022)

  1. Subtract the nontaxable biweekly Thrift Savings Plan contribution from the gross biweekly wages.
  2. Subtract the nontaxable biweekly Federal Health Benefits Plan payment(s) (includes dental and vision insurance program and Flexible Spending Account - health care and dependent care deductions) from the amount computed in step 1.
  3. Add taxable fringe benefits (e.g., taxable life insurance) to the adjusted gross biweekly wages.
  4. Multiply the adjusted gross biweekly wages by the number of pay dates in the tax year to obtain the gross annual wages.
  5. Determine the standard deduction by applying the following guidelines and subtract this amount from the annual wages:

    If the Employee Is Single and Annual Wages Are:

    Then the Standard Deduction Is:

    Over $0 but not over $17,780

    $6,702

    Over $17,780 but not over $73,630

    $6,702 - 12% x (Annual Wage - $17,780)

    Over $73,630

    $0

    If the Employee Is Single and Annual Wages Are:

    Then the Standard Deduction Is:

    Over $0 but not over $25,727

    $9,461

    Over $25,727 but not over $73,032

    $9,461 - 20% x (Annual Wage - $25,727)

    Over $73,032

    $0
  6. Apply the following guidelines to determine the exemption allowance and subtract this amount from the results in step 5:

    Exemption Allowance = $400.00 x Number of Exemptions

  7. Apply the taxable income computed in step 6 to the following table to determine the Wisconsin tax withholding.

    If the Taxable Wages Are:

    Amount of Tax Is:

    Over $0 but not over $12,760

    3.54%

    Over $12,760 but not over $25,520

    $451.70 plus 4.65% of excess over $12,760

    Over $25,520 but not over $280,950

    $1,045.04 plus 5.30% of excess over $25,520

    Over $280,950

    $14,582.83 plus 7.65% of excess $280,950
  8. Divide the annual Wisconsin tax withholding by the number of pay dates in the tax year to obtain the biweekly Wisconsin tax withholding.

Resources

To view the updated tax formula, go to the HR and Payroll Clients page from the MyNFC drop-down menu on the National Finance Center (NFC) Home page. Select the Publications tab and select U.S. Income Tax Formulas from the Publications menu to launch the tax map. Select the desired State from the map provided for the formula.

Previous Tax Bulletin

Inquiries

For questions about NFC processing, authorized Servicing Personnel Office representatives should contact the NFC Contact Center at 1-855-NFC-4GOV (1-855-632-4468) or via the customer service portal at ServiceNow Portal for Federated Users and at ServiceNow Portal for Non-Federated Users.