Release 20.05.19
Support document lines with negative total
Document lines with negative total are now supported for tax calculation.
SAP let use some sales documents with negative totals, by setting the quantity to a negative value, the unit price as a positive value, and the total as negative.
Avatax now calculates taxes over that lines, and returns the tax calculated as negative.
You can mix negative and positive document lines in a single document without issues: