Ocerra has inbuilt calculator to quickly add the correct total, net and tax amounts if it is missing from the invoice.

See how to calculate net amount here.

Here's an example of missing net and tax amounts on the header level, we only have the total amount extracted from the document:

  • To calculate the missing net and tax amounts, click on the "refresh" icon next to the GST field
  • A drop-down menu with available tax codes in your system will be presented
  • Select the relevant tax code - if you have more than one lines on the invoice: Ocerra will ask you: 

"You have more than one line on this invoice. Do you want to combine into a single line?"


  • Click Cancel and Save the document.
  • Ensure you have the correct tax code selected on the line level
  • Ensure GST inclusive check box is ticked if invoice lines are inclusive GST