#3 is an absolutely classic example of unanticipated complexity. Tax might differ depending on individual line items on an invoice, so if you’re refunding $50 o

#3 is an absolutely classic example of unanticipated complexity. Tax might differ depending on individual line items on an invoice, so if you’re refunding $50 on a $100 invoice, how do you compute the tax payable for the invoice? If memory serves, we ended up solving this by pro-rating the tax against the refund amount, on a per-item basis. And, I think, some smart accounting. Oh and then you have the problem of when tax is becomes payable. Is it when the invoice is raised (accrual based)? or when it is paid (cash based)? And if memory serves, it depends on the size of your company. :head asplode: