Which drop down box for PAYG and gstin expenses

Hi Adrian-Minders, 

Thank you for reaching out on this. 

PAYG isn't something you can assign in expenses. The way it gets captured is by having payroll journals posted to your QBO with the W1 and W2 tax codes. Once you turned on the payroll function, those 2 tax codes would get activated. 

Similar to PAYG, you need to turn on GST in the GST tab. Please note that once you turn on GST, you can't turn it off. After you turn on GST you would be able to see a GST column with drop selection option in your transactions. 

I found a few related articles for your reference:

• GST Settings Overview
  • https://quickbooks.intuit.com/community/GST-and-BAS/GST-Settings-Overview/m-p/262747#M35
• Where do W1 and W2 amounts come from on the BAS report?
  • ​​​​​​​https://quickbooks.intuit.com/community/GST-and-BAS/Where-do-W1-and-W2-amounts-come-from-on-the-BAS-report/m-p/262611​​​​​​​

Please let us know if you have any questions. Thank you.