Welcome to the County of Los Angeles Vendor Direct Deposit Portal where vendors and payees can submit their Direct Deposit Authorization Form online. Participation in the Direct Deposit program requires completion of the Direct Deposit.Authorization form on the reverse side. This document will create a form for employees to fill out to create, cancel, or change their direct deposit. Filling out the Direct Deposit Authorization Form is straightforward. For Direct Deposit please attach a voided check or savings account statement showing your account number. Direct Deposit Authorization.