Hi PujariD365,
Can you please check if below setups have done properly or not.
--- In Sales tax group form in Tax module; you have to set both sales tax code and reverse code.
--- Setup need to do in Item sales tax groups form also.
For example; if the sales tax code is TX, then reverse tax code is TX-R. Sales tax group say; V-GCC and item sales tax group say; PTAX. Now, if you want that while selecting this combination V-GCC and PTAX in PO, system should pick both TX and TX-R, then you need to set both these tax codes properly in Sales tax groups and Item sales tax groups forms.
--- In reverse sales tax code, you have to set Allow negative sales tax percentage as 'Yes'.
--- Also in reverse tax code; you have to set the value in negative (-ve). Example -5.00

--- Now in Ledger posting groups form; make sure that you have selected tax related main accounts properly. I think this you have already made as you are not getting any issue for tax calculation in PO.
I have done below setup.

Now after confirming the PO, sales tax are recorded like this (both sales tax and reverse sales tax codes) which you can fit in your PO confirmation report.

Kindly check and update.
Best regards,
Sourav Dam
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