Need to know
Time to Complete
- Vendor account updates can take up to 10 business days.
- Missing or incomplete documentation will cause additional delays.
Update Methods
Before you start
Please gather all required documents in electronic format.
- IRS Form W9 or IRS Form W8 BEN / IRS Form W8 BEN-E for Foreign Entities.
- Voided Check or Bank Letter verifying the routing and account numbers for your EFT Direct Deposit.
- California FTB Form 587 (2026) or FTB Form 590 (2026) for Entities based outside of CA. Visit the FTB website for more information.
What to do
- Review the Vendor Portal User Guide and visit the Vendor Access Portal to request changes, or
- Submit your changes using the Vendor Payee Information Form.
Upload supporting documentation
- Banking Information Changes: require a Voided Check or Bank Account Verification Letter issued by your financial institution.
- Vendor Name Changes: require a W-9.
- Tax ID Changes: usually require you complete a new registration under the new Tax ID.