To ensure that my clients are tracking sales tax on each sale and purchase in QuickBooks, where should I add a tax rate in QBO?

I understand the importance of being able to add a tax in QuickBooks Online (QBO), Ekaregam. 

In QBO, tracking and adding a tax for each sale and purchase can be done within the Tax menu. Kindly follow these steps: 

1. Ensure that you set up your Sales Taxes. If you already set up your sales tax, skip this part.
2. Go to the Taxes menu located in your left navigation panel.
3. At your top right corner, click Add Tax. And then choose Tax rate. 
4. Fill up the necessary details such as the Tax name, and Description. 
5. In the Tax Agency, tick the Sales and the Purchases option.
6. Fill up the necessary fields and click Save. 

Refer to this material if you want to learn how to set up your sales tax: Set up and use sales tax in QuickBooks Online.

If you want to see more details regarding the steps above, please check out this guide since this contains a lot of information that can help you further: Create new tax rates in QuickBooks Online.

In addition, you may also want to access this material since it contains how to record, adjust and delete sales tax payments in the tax center: Manage sales tax payments in QuickBooks Online.

For more concerns regarding taxes, please leave a comment below so that we can assist you.