Can the field "Income Tax Type" be overridden to a blank value with spreadsheet upload, FBDI/ADFDI?

Summary:

We utilize both the FBDI and ADFDI import process to create invoices. We have several non-employee suppliers who have a mixture of reportable payments to the IRS and non-reportable payments (i.e. payment for professional services that is reportable to the IRS, but also substantiated expense reimbursements that are not reportable).

We are trying to find a way to utilize the spreadsheet import where we can override the supplier default value in the instances where payments are not reportable.

In instances where a payment is not reportable, we would like the import to be able to load the field as a blank value for the "Income Tax Type" field instead of defaulting from the supplier profile. We do not wish to remove reporting from the supplier profile, as a portion of the payments are reportable to the IRS.