Setting Up the Tax Details
Tax Details (TXD) is used to enter the additional tax details that are required by the automatic tax calculation facility, for each tax code. See Understanding the Automatic Tax Calculation Facility.
The tax codes available are the analysis codes that have been setup for the Tax Analysis Dimension, identified in Ledger Setup (LES).
The tax code that applies to a transaction is entered in this analysis dimension field in Ledger Entry (LEN) and is used to trigger the tax calculations. See also Which Analysis Codes are Required? in the Financials User Guide / Help.