Our city recently changed the sales tax, therefore we changed the over-all, across the board, sales tax. I went to go update an invoice that I have out to a client and noticed that the sales tax has not been updated. I tried to change the sales tax but the Invoice would not let me unless I completely deleted the line item and re-entered it. This is rediculous. I have over 20 invoices out to clients and each are VERY detailed, specific to the clients order. I CAN NOT spend time re-entering EVERYTHING. 

Please advise. The tax must reflect the current tax at the time a client pays for the order, NOT the tax at the time the client orders. That's just how it works. THERE HAS TO BE A FIX FOR THIS. 

I keep finding small things like this. Your services are supposed to make life easier, NOT more difficult. I'm getting very frustrated.