Should 1/1/2022 payroll be reflected in 2021 reporting?

Hello, @praski. I'll share some details about W-2 forms and will help you resolve your concerns.

The final paycheck generated in December is recorded in the W-2 earnings for that year. The first paycheck of the year is included in the W-2 earnings for the new year.

You can send those documents to your employees and the Social Security Administration by January 31 if you've already completed them.

You may refer to this article to learn how you can wrap up this year’s payroll and prepare for the next with QuickBooks Online Payroll.

I've also added below the following articles where you can watch year-end videos live:
 

• How to file your 1099-MISC and 1099-NEC in QuickBooks Online.
• How to file W-2s in QuickBooks Online.
   

I'm always here if you need anything else. Have a good one!