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Federal, State and Territorial Income Tax Withholding Formulas

You may use Employee Express to change your federal and state tax withholding. For more information, please visit our Employee Express section.

For information on federal tax withholding visit the IRS website.

Refer to the Payroll Announcements page to review the most recent FPPS UG memos regarding Tax Changes.

Click on the state or territory below to find web sites for your state revenue or tax department. Implementation dates of tax formula changes may be found in Message of the Day, please contact your HR Representative. There are no tax formulas for Nevada, Wyoming, South Dakota, Tennessee, Texas, Washington, Alaska, or New Hampshire. To find your state's numeric code visit

Employees can access and/or make the following personnel-payroll changes through Employee Express (if your agency participates in the program):

  • Access Leave and Earnings Statements
  • Direct Deposit, Allotments
  • Federal Tax Withholding
  • State Tax Withholding (Exemptions). Cannot move states
  • Electing Health Benefits during Open Season or Qualifying Life Events
  • Thrift Savings contributions and Catch Up contributions; includes “Start, Change, or Stop” elections
  • Election of Health Saving Allotment
  • Access W-2 and Corrected W-2s if appropriate
  • Federal Employees Benefit Statement
  • View and print Combined Federal Campaign pledge cards for prior years

To find out more about Employee Express check out the Employee Express area of this website.

For additional assistance, contact your Human Resources Office (HR), Servicing Personnel Office (SPO), or your agency’s Servicing Center.

You may also view the Customer Support Center’s page for contact information by service offering:

Customer Support Center

Fax: 303-969-5463

Hours of Operation: 8:00 a.m. - 7:30 p.m. ET / 6 a.m. - 5:30 p.m. MT


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