Hi true_d01,
It's a pleasure to see you in Community. Welcome! QuickBooks Online provides the ability to un-file a sales tax return in situations such as this. I'd be happy to show you how!
Keep in mind, you'll only be able to un-file the most recent filing. If you need to un-file historical filings, you must un-file them in reverse, until you reach the desired filing. It's important that you print the associated Exception reports for tracking purposes. They'll become regular transactions for the un-filed periods.
Follow these steps to un-file sales tax;
1. Open Taxes and then Sales Tax, from the left menu
2. Select the Filings tab
3. Locate the sales tax filing you need to un-file
4. In the Action column, open the drop down menu and select Undo filing.
Please don't hesitate to contact us outside of Community, if you require additional assistance. We'd love the opportunity to work with you directly and ensure you're back on track with your Sales Tax goals as soon as possible!
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 out again if you have other questions. We'd be glad to assist!