I have a single CSV file that I am importing invoices into Sage 300 2014  A/R.  I receive no error on import but when I analyze the sage invoice compared to the csv file there is a difference in the tax1 amount.

Eg the line total is 990.47 and the csv file has 49.53 assigned as the tax1 amount but what is in Sage is 49.52.  Sage is actually correct 5% of 990.47 is 49.52 but we need to match the tax amount to what the program we are importing from calculated which was 49.53.   When I review the mapping of fields on the import screen I see that my Tax Amount 1 field is mapped correctly to my amttax1 in my single csv the field that contains the 49.53

Invoice:  I have no tax related information being imported or mapped

Invoice details:  I only have Tax Amount 1 and Tax Amount 2 mapped

no tax related information is mapped on invoice payment schedule, invoice optional fields, or invoice detail optional fields

How do I get Sage to accept my tax # rather than calculating but leave the system defaulting to calculating for typing in invoices.