Payables Invoices - REST API - Tax amount not getting added to invoice amount

Summary

Payables Invoices - REST API - Tax amount not getting added to invoice amount

Content

In FBDI If we populate 'Y' to 'Calculate Tax During Import' and 'Add Tax To Invoice Amount' in AP_INVOICES_INTERFACE tab, when payables invoice is created with tax lines then invoice amount will get updated with tax amount.
But when i have tried creating Payables invoice with REST API, Invoice header amount is not getting updated to include Tax amount.

REST API Documentation URL - https://docs.oracle.com/en/cloud/saas/financials/20b/farfa/op-invoices-x-operations-0.html 

Please suggest if anyone has any idea