Hello, @SteveRay01.

I can share a few steps about your scenario. After placing a checkmark for This tax is collected on purchases option, the next step would be to enter the rate in the Purchase rate field if required. Then place a checkmark for Purchase tax is reclaimable option if it is required. Then click Next to finish the setup.

Then click OK.

You can also follow the steps through this video on how to track sales tax: Tracking sales tax.

I've also added these articles for your future references about Sales GST/VAT in QuickBooks:

• How do I set up sales GST/VAT rates and use them on forms? (International QBO)
• Applying Sales Tax to Transactions and Sales Forms
• Manage a tax rate change

Let me know if you have additional questions about adding sales tax on bills. I'm always here to help you hand in hand.