Post-Retirement
Questions and answers
Tax tables are set into law by the United States Congress and administered by the IRS. Each year, the new tables are posted on the IRS website in IRS Publication 15 and Notice 1036. We are required by law to update your Federal income tax withholding based on the new monthly periodic tax tables and formulas. OPM withholds the required federal taxes according to your marital status and exemptions (dependents) elected. You can change your tax withholding amount at any time. It is a good idea to check the amount of your Federal and State tax withholding each year.
Select this link to view the IRS Publication 15. If you are looking at the specific tax tables you want to search for the Single or Married Monthly Payroll Period tables.