GST Inclusive vs Exclusive Pricing: Quick Math for Invoices
2026-05-01
Learn the difference between GST-inclusive and GST-exclusive amounts, and how to split tax from a total cleanly.
Exclusive pricing means the listed amount is before GST; you add tax to reach the customer’s payable total.
Inclusive pricing means the customer already sees a single number that contains both base and GST.
To audit a quote, you must know which convention was used—mixing them is the most common invoicing error.
Use a calculator that supports both modes so you can verify supplier quotes and your own line items quickly.