CA Withholding: We keep exactly one of these forms on file for each vendor. It is your responsibility to determine which form applies to you and to complete it accurately — FMS Pay cannot provide tax advice. Most California-based vendors complete Form 590; nonresident vendors sometimes complete Form 587. If you're unsure, see our
CA-590 and CA-587 tax forms article, FTB Publication 1017, or consult your tax advisor. Withholding agent for both: FMS PAY LLC. Please contact FMS Pay for additional support, as typically out of state vendors cannot be funded in SDP.