How to apply hold on EDI Order based on Tax while importing

My Client is in US. Orders are created via EDI .

Tax is applied automatically on certain orders during order import and created in Booked status. So the tax goes un-noticed until Invoice is created.

Client wants to apply hold on the EDI orders that contain Tax on sales orders as they do not want to apply tax on EDI transactions.

So expectation is When EDI orders are created, if Order contains Tax, Hold should be automatically applied so that order is created in ''Entered'' status.

Please guide if anyone has worked on any such requirement.