Welcome to Community! It's essential that you're able to add the applicable sales tax in QuickBooks Online. I'll be happy to provide more information so you can complete your QuickBooks goals with confidence!
Here's how to add sales tax agencies;
1. From the left menu, open Taxes and then Sales tax
2. Select Manage sales tax and then Add tax
3. Choose Start tracking in a new province and use the ▼ dropdown menu to select the province.
4. Add a custom tax and agency for any other taxes you collect on sales
5. Hit Add to save
If you require additional assistance, please don't hesitate to contact us.
Schedule a Callback or start a Chat: click (?) Help in the upper right in QuickBooks Online > enter "Contact support" > hit Contact Us > provide a brief summary of your situation > hit Let's Talk > choose Get a callback or Start a Chat.
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Feel free to reach back out with any other questions you may have. We'd be glad to assist!