If not completing the fillable on-line version of this application, please fill out this application carefully in ink. This file is an application for employment at the City of Los Angeles.How to fill out the Employment Application - City of Los Angeles Form? 1. Gather all required personal information. 2. Fast and Secure Online Registration. Use e-Services for Business to register for your employer payroll tax account number. Los Angeles County Seal. Select the appropriate form for use. To get more information regarding a particular form, click on the title name of that form for details. State and federal law requires California employers to provide the following new hire documents to their employees at the time of hire.