Hi,
You are requested to check following configuration :
1. You have created different Withholding Tax Codes for Surcharge and Ecess.
2. Whether you have configured Portray Dependencies Between Withholding Tax Types and in that you have given dependency number of main withholding tax code in Surcharge and Ecess.
3. In the Withholding Tax codes created you have given posting indicator as 1 (Standard posting: Bank/vendor/customer line item reduced) instead of 2 (Offsetting entry to G/L account ("grossing up")).
If you have done above then, do following configuration :
1. Create only one Withholding Tax Code.
2. Give With/tax rate as 30.90.
3. Remove dependencies from Portray Dependencies Between Withholding Tax Types.
In case of any further clarification required please feel free to revert.
Regards,
Tejas