Required Fields for a Tax Calculation Using the
Simple Order API

Use these fields to perform a tax calculation.
billTo_city
billTo_country
billTo_postalCode
billTo_state
item_#_unitPrice
merchantReferenceCode
taxService_nexus
If you include this field, do not include the
taxInformation.noNexus
field.
taxService_noNexus
If you include this field, do not include the
taxInformation.Nexus
field.
taxService
Set to
true
.