Previous Year Federal Income Tax Calculation - Biweekly Payroll Period

Effective January, 2011

To determine the amount of wages subject to federal tax, you must first add any taxable fringe benefits and taxable employer-paid deductions to your gross pay amount. You can then subtract $142.31 from the total biweekly taxable gross pay for each withholding allowance claimed.

Also, if you participate in tax deferred retirement (MSRS, Faculty Retirement Plan, 457 Plan, or Optional Retirement 403b Plan), before-tax Parking, Metro Pass, Employee Insurance Benefits, or Medical or Dependent Care Benefit Reimbursement deductions programs, subtract those amounts from biweekly gross pay as well. The remainder is subject to withholding tax at the rate in the appropriate biweekly table below.

Percentage Method – Value of One Withholding Allowance

In 2011, the value of one withholding allowance for a Biweekly Payroll Period is $142.31.  The "Making Work Pay" credit expires on December 31, 2010.  As a result, the income tax withholding tables for 2011 are not adjusted for the Making Work Pay credit. 

The 2011 withholding adjustment for nonresident aliens is $80.80 for biweekly tax calculation purposes only.  This amount is added to the wage calculation solely for the purpose of calculating income tax withholding on the wages.  Note that nonresident alien students from India are not subject to this procedure.

Single Person (including Head of Household)

Married Person