To create stock group with service tax details, enable the option for stock group items in F11: Features > Statutory & Taxation.
To create stock group
1. Go to Gateway of Tally > Inventory Info. > Stock Groups > Create.
2. Enter the Name for the group.
3. Select the category in the field Under.
4. Set the option Should quantities of items be added to Yes, if required.
5. Enable Set/alter service tax details?. The Service Category Creation (Secondary) screen appears.
Note: You can also view all the service tax details such as applicable from, category and others.
Creating Stock Item with Service Tax Details