https://help.tallysolutions.com/docs/te9rel64/Tax_India/Getting_Started/Configuring_Service_Tax_Masters.htm

Configuring Service Tax Masters

The application migrates all the service categories that are used in the previous version and also it retains all the  tax detail configurations that are configured in the service ledger and party ledger, thereby the user can directly start recording the transactions.

Note: If applicable, reverse charge has to be activated.

To set reverse charge

1. Go to F11 (Features) > F3 (Statutory and Taxation) .

2. Enable Set/ alter service tax details .

3. Select Yes against the option Is Reverse Charge Applicable ?

4. Press Ctrl+A .