New Vendor Setup Request
To set up a new vendor, please:
- Complete W-9 Form
Vendor must fill out and sign the W-9. - Submit Documentation
Upload the W-9 to the LMC Business Services SharePoint Site. - Out-of-State Vendors
If the vendor is outside California:- Submit the Out-of-State Vendor Form.
- Review the 2025 Tax Withholding Notice
California requires 7% withholding on payments over $1,500 for services performed in-state. Vendors may submit Form 590 to claim exemption.