AvaTax for Communications override file format

AFC Override File Format

1. The first line of the override file contains the version number of the override file format. This is used so that AvaTax for Communications (AFC) and the AFC Manager (RLM) know how to interpret the contents of the override file. If any modifications are made to the override file format (such as adding new logic fields), this version number must be incremented and the appropriate changes be made to AFC and the AFC Manager to read the new format correctly, while still providing the ability to read previous versions of the file for backwards compatibility. If a client opens up an old version of the file and makes any modifications to it, the AFC Manager will automatically convert it and save it into the new format.
2. Consecutive lines in the override file contain the actual overrides. There are three types of overrides:
   • Sales tax rate overrides (for tax types 1 and 49 only).
   • Other tax rate overrides (for any other tax types).
   • Logic overrides.

The overrides may be contained in any order. The format for each type of override is presented in the sections below.

AFC and the AFC Manager determine what type of override is in the file by looking at the field count in the first line of the override.