Hi Chris,
I have 2 tax, tax1 is active to be calculated (10% exclusive),, and tax2, its just information (2% exclusive, but not calculated to total) - (if corporate client need this).
I think I can use proforma feature.
My rules maybe like this :
if customer is corporate, in the proforma invoice there will be tax1 exclusive and row tax2 exclusive (but for tax2 not to be counted to total)
if the customer is personal, then in proforma invoice there is only tax1 exclusive only (calculated exclusive to total).
if possible I need 1 row again in each every invoice have a row for administration fee (fixed) like my thread in "Additional Charge"
And when if the condition (both personal or corporate) invoice has been paid then row at the invoice tax2 will be eliminated.
So finally there are only show subtotal, tax1, administrative cost and grand total (exclusive calculation).
Please share if you have idea/module to make this work.
Thanks