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BAS labels explained: G1, 1A, 1B and the rest

The short answer

On a BAS (business activity statement), G1 is your total sales, 1A is the GST (goods and services tax) in those sales, and 1B is the GST in what you bought for the business. Simpler BAS, the default for small businesses, asks for only those three.

On this page
  1. What goes at G1, and does it include GST?
  2. What goes at 1A and 1B?
  3. So what do I end up paying?
  4. How do I know if I am on Simpler BAS?
  5. What are G2 and G3?
  6. Do I have to fill in G10 and G11?
  7. What counts as a capital purchase?
  8. What are W1 and W2?
  9. What is T7 on my activity statement?