MOTOR FUELS FLAT (FLT) FILE and EDI FILING GUIDE

This guide contains general, plain-text instructions you need to file motor fuels tax information (tax returns, information reports, and certain claims for refund (hereafter collectively referred to as tax forms ) online using Flat (FLT) File or EDI files with the CDTFA. This guide, along with the other information provided on the CDTFA Motor Fuels Online Filing web page, is designed to provide the rules, procedures, and technical requirements for the online filing of motor fuels taxes. All directions set forth in this guide and on the website must be followed for successful participation in online filing.

How to Use This Guide

Each section of this guide contains important information relevant to filing motor fuels tax forms via FLT and EDI. The Getting Started section provides important information to get started filing via FLT and EDI including important contact information. For further information for filing online with the CDTFA and for Excel templates that you can use to create a FLT file, visit our Motor Fuels Online Filing webpage.

The FLT and EDI sections provide filing specifications and other information relating to the applicable filing format. The Guidelines section provides further information relating to filing via FLT and EDI. The Certification Testing section provides the information necessary to help you complete the optional certification testing process and the Examples section provides examples of completed Excel templates.