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Tax Deduction Codes, Descriptions, and Rates

Payroll is required to deduct all federal and state income taxes from employee taxable earnings each pay period.

  • Registered degree-seeking students, working part-time are only subject to Federal and California State withholding taxes.
  • Federal and California State withholding tax rates are determined by the information provided by the employee on their federal and regional tax withholding cards. To change your federal and state withholding allowances, refer to refer to How to: Declare or Change Withholding Allowances.
  • Additional local taxes may apply for employees working outside of California. Please refer to your payslip for withholding details.
2026
Tax Deduction CodeDescriptionTax Rate

FIT Withheld 

Federal Income Tax

Federal Tax Withholding Card

Medicare Employee Withheld

Medicare

1.45% on wages earned; Additional 0.9% on wages earned in excess of $200,000 

Social Security Employee Withheld

Social Security

6.2% on first $184,500 wages earned

SDI Employee Withheld

CA Short-Term Disability

1.3% on wages earned

VPDI Employee Withheld

Voluntary Short-Term Disability

0.75% on wages earned

SIT Withheld

State Income Tax

Regional Tax Withholding Card

2025
Tax Deduction CodeDescriptionTax Rate
Fed WithholdingFederal Income TaxW-4 Rate
Fed MED/EEMedicare1.45%
Addl MedAdditional Medicare Tax0.9% on wages earned in excess of $200,000
Fed OASDI/EESocial Security6.2% on first $176,100 wages earned
CA State Dis/EECA Short-Term Disability1.2% on wages earned
CA Vol Dis/EEVoluntary Short-Term Disability0.9% on wages earned
CA WithholdingState Income TaxDE-4 Rate
Last Updated: Jun 29, 2026

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