Helping you generate a report that shows all your purchases/bills and tax is my priority, usernikhil-bargale.
You can pull up and run the Purchase by Supplier Detail report in QuickBooks Online to show all the information you need.
Let me walk you through the process:
Click Reports in the left panel and search for the Purchase by Supplier Detail.
On the report screen, click the Gear icon at the upper right corner.
Select the Tax Amount.
Tap anywhere on the report screen to refresh the page. You'll see the Bills and Tax Amount column on the report.
For your reference, you can go through the following articles below. These will provide you more details on what other tax reports you can pull up as well as other ways to customise them in QuickBooks Online: