Error while validating the invoice in R12

[Shashi_k]

Hi,

I am getting the following error message when clicked on calculate TAX in R12 payables.

Payable could not calculate TAX due to :ZX.ZX_TAX_INFO_NOT_FOUND N
TAX REGIME NT-USTAX N TAX CODE NT01.

My tax regime : NT-USTAX (user defined)
TAXCODE: NT01 (user defined)

Can anyone let me what could be the possible reason for the issue and how we can resolve it.

Regards,
Shashi.