General Invoice Settings
1) Click on ‘ Settings ‘ in the top-right corner of your screen
2) Click on ‘ Preferences ‘
3) Click on ‘ Invoice ‘ tab
4) Next to ‘ Tax ‘ select if you wish to collect ‘ Tax Per Invoice ‘ or ‘ Tax Per Product ‘
5) Enter Estimate Start Number and Invoice Start Number
6) Under ‘ Invoice Template Options ‘ you can choose what to include in the invoice template
7) Click on ‘ Apply ‘, to save settings