How do I increase G1 to make adjustment of amount of GST owing to ATO when lodging BAS. My account has advised I need to increase G1?

Hi g.porter,

The G1 amount is summed up from the total GST of all Sales transactions that have GST as part of the transaction. If you are missing some of the G1 amount, you will have to find the transactions that are missing and include GST into them, or recreate the missing transactions to 'increase' the G1 number. 

Bonny