We still have one more pay in 2021 but our 940 and W2s are showing in our form preview..will these be updated?

Hello, @lgp2. 

Thanks for taking the time to reach out to the Community for support. I hope you're enjoying the day so far. 

When filing with QuickBooks Online, yes, these forms will update when you begin the filing process. The information will gather from your last ran payroll. 

For additional details about this process, check out Tax payments and forms Intuit payroll submits for you.

Please let me know if you have any additional questions or concerns. Take care, and have a wonderful day ahead!