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How to Change Your Tax Withholding

You are the only one who can update your tax withholding. No one at UCSD, including Payroll staff, has access.


  1. Go to UCSD's UCPath page
  2. Click UCPath employee log-in
  3. Click University of California, San Diego
  4. Choose whether you want to sign in via business systems Single Sign-On (SSO) or Active Directory
  5. Enter your credentials and click Login
  6. Click Employee Actions along the left side
  7. Click Income and Taxes
    1. Federal Withholding (W-4) or
    2. CA State W-4 (DE-4)


More information

  • The 2020 Form W-4 is different from previous forms. Withholding allowances no longer exist. Instead, use the worksheets that are part of Form W-4, above. 
  • You are the only person who can update your tax withholding information.
  • UCSD employees are not permitted to help you with calculating withholding information.
  • Do not submit forms W-4 or DE 4 to your department or UCSD Core Central Payroll department (formerly called the Payroll Division) because they can't update your withholding. 
If you have questions, please go to UCSD Services and Support, choose Payroll, Academic Personnel & HR,and then Get help and order services. You’ll then be able to log in and submit your questions.
Note: This page has a friendly link that's easy to remember: