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Corrected - Tax Changes Implemented Pay Period (PP) 2023-22 and PP 2023-23 ND


DATE: November 2, 2023
TO: FPPS User Group Representatives
FROM: Christine Zertuche-Rocha, Chief, Payroll Operations Division

SUBJECT:  Corrected - Tax Changes Implemented Pay Period (PP) 2023-22 and PP 2023-23 ND

(Correction is in bold and underlined)

Please share this information with all impacted employees. The following tax change will be implemented in PP 2023-23 for clients listed in the table below*.  For all other clients, the changes were implemented in PP 2023-22. As a result, employees may see a change in their tax withholdings. As a reminder, tax changes are not retroactive to employees’ withholding.

State Tax

  • North Dakota Income Tax Withholding:
    • The state income tax withholding formula has changed effective January 1, 2023.
    • The tax tables for all filing statuses have changed.
    • Different tax tables apply based on the Federal Form W-4 Employee’s Withholding Certificate:
      • Pre-2020 Form W-4
      • Post-2020 Form W-4
    • Datamart Query: Tax State = 38

You may execute Datamart queries to identify employees in affected state taxing areas. For Combined File Ad-Hoc query/analysis of applicable States:  add STE Tax State 1 = (State Code above) or STE Tax State 2 = (State Code above) to the filter or prompt lines.

The Interior Business Center (IBC) Payroll website is updated frequently; you may view the state tax formulas here:

*These clients are:

American Battle Monuments Commission               

National Aeronautics and Space Administration       

Arctic Research Commission

National Archives and Records Administration

Barry Goldwater Scholarship Foundation

National Labor Relations Board

Chemical Safety and Hazard Investigation Board

National Mediation Board

Consumer Product Safety Commission

National Science Foundation

Council of the Inspectors General on Integrity and Efficiency

National Transportation Safety Board

D.C. Courts

Nuclear Regulatory Commission

Environmental Protection Agency

Office of Navajo/Hopi Relocation

Equal Employment Opportunity Commission

Pension Benefit Guaranty Corporation

Export Import Bank of the U.S.

Privacy and Civil Liberties Oversight Board

Federal Energy Regulatory Commission

Public Defender Service for D.C.

Federal Housing Finance Agency

Public Interest Declassification Board

Federal Retirement Thrift Investment Board

Securities and Exchange Commission

Federal Trade Commission

Social Security Administration

Institute of Museum and Library Services        

U.S. International Development Finance Corporation

International Boundary and Water Commission                

U.S. International Trade Commission 

JFK Center for the Performing Arts               

U.S. Tax Court 


U.S. Trade and Development Agency

If there are any questions, please call the IBC Customer Support Center at 1-866-367-1272 or by email at