total_tax_on_expense

"Total of tax due on tax_total_detail_expense for this tx_id, including amounts applicable on MATTER_DISC_CRED where disc_cred_category = ""Exp"". If TAX.increase_decrease = Decrease for this TAX.tx_id, this will be a negative number. If tx_id is a Tiered Tax, the value in this field should be 0. "