"Total of tax due on tax_total_detail_fees for this tx_id. Total includes tax applicable on all MATTER_DISC_CRED.discount_percent and disc_cred_amount for this tx_id where MATTER_DISC_CRED.disc_cred_category = ""Fee"". 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. "