Hello Kamal Kumar,
Normally for service charge reverse, it will generate the following accounting journals:
1.Dr: Purchase 100$
2.Dr: Input tax 6$
3.Cr: AP -100$
4.Cr: Output tax -6$
In this case, do you have any suggestion to generate the line4 tax account via Extended withholding tax configurations.
If possible, could you please share the related document for WTH tax configurations.
Thanks for your further suggestion!