Need to record change in filing frequency for state's sales tax, however, making the filing change affects prior year information.

I understand how important it is to change the filing frequency without affecting the previous year's information, gblightsolutions.  

If you need to change your sales tax filing frequency, you can normally do it by going to the Taxes menu and then Sales Tax Settings. However, since you've mentioned that this affects your prior year's information, I recommend reaching out to our support team. This allows them to access your account and find solutions for any potential issues.

Here's how:

1. In your QBO account, select Help (?). 
2. Choose the Search tab.
3. At the bottom of your screen, click Contact Us.  
4. Type your concern. Then click Continue. 
5. You may choose Callback, Appointment, or Chat as your way to connect with us. 
6. Kindly fill out the provided field such as your First name, Last name, Email address, and Phone number. 
7. Depending on what you choose as your way to connect with us, click Callback, Schedule an appointment, or Chat. 

You may also want to learn more about the Support hours of QuickBooks. 

I'll leave this helpful reference that can guide you in submitting your sales tax returns and payments on time, avoiding any penalties for late filing: File your sales tax return and record sales tax payments in QuickBooks Online. 

You can always inform us if you have additional information or other concerns besides changing your filing frequency. Please leave a comment in the section below so we can be notified.