Thank you for visiting the QuickBooks Community. I'll be sharing details on how incorrect 941 works in QuickBooks. Then, ensure you'll be routed to the right support team to make sure you'll be able to change the address on your payroll form.
As soon as you discover an error or incorrect details on a previously filed Form 941, you'll have to file an amendment form using the 941-X to make any corrections. Meanwhile, you can only use the form 941-X to correct any of the following:
Wages, tips, and other compensation
Income tax withheld from wages, tips, and other compensation
Taxable social security wages
Taxable Medicare wages and tips
Taxable wages and tips subject to Additional Medicare withholding
Credits to COBRA premium assistance payments
Since you'll just want to change the address on a filed 941, I suggest contacting the IRS. They can check to verify the complete information you entered in the form and have the tools to make any changes from there.
Lastly, you may refer to this article to view various details on how lines on different pages in 941 work in QuickBooks: How QuickBooks populates Form 941.
I'm only a few clicks away if you need assistance with your other tax forms. It's always my pleasure to help you out again.