A typical invoice may contain: The word invoice (or tax invoice);  A unique reference number); The buyer (i.e. the issuer) should treat the invoice as an account payable and the seller should treat it as an account receivable.

Note: If you are setting up your invoice account to reference identical as per the set up in your accounting software, please click on the below topic links for MYOB or Xero to learn more on the integration set up for invoice account codes. 

Click here to learn more on setting up the MYOB Integration or here for Xero Integration