Hello debholmes2,
Welcome to the QuickBooks Community! It's a great place to find answers to your general QuickBooks Online questions and also to find solutions for situations you're running into while using the program. I'd be happy to get you started with some troubleshooting and point you in the right direction for taking care of message and undo the tax filing.
Given that you have the option to undo the sales tax filing, it sounds like you're using QuickBooks Online Accountant to work with your clients. That's awesome, and it's also good that you've taken the step to verify that there aren't any payments against the sales tax filing. Since you're not seeing anything there, I have some troubleshooting steps you can try to ensure that there aren't any temporary Internet files or other Internet-based issues causing problems for the program.
After each step, try undoing the filing again to see if it works. If you reach the end of the list and you're still getting that error message about payments being applied against the tax filing, our support team outside of the QuickBooks Community can help.
For the next step, shifting to support beyond the Community is important because our agents have tools that can try the unfiling process from the back end, which means collecting account details. Keeping those secure and private is vital, so please use one of the following options to connect with support.
Schedule a Callback or Chat: click (?)Help in the upper right > type and enter "Contact support" into the QB Assistant > click Contact Us > explain your situation > click Let's Talk > choose Get a callback or Start a Chat. Support is available from Monday to Friday between 9 a.m. and 8 p.m. ET.
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Once you've connected with support, you can share details about your situation as well as the steps you've tried already so that everyone is on the same page. We've got your back!
