Can you edit pay periods on past paychecks?

Hello there, contact68.

Changing the pay periods for the previous paychecks is unavailable since the payroll has already been processed. 

What we can do is void the paycheck and recreate a new one. It's a way to edit or correct the pay periods for those certain checks. Let's take note that there are limited options for pay periods that we can select when we recreate them. 

Beyond those dates, we'll need the assistance of our payroll specialist to help us get these things possible in QuickBooks Online.

Here's how  to void them:

1. Go to Workers from the left menu. 
2. Go to the Employees tab. 
3. From the list, select the employee involved. 
4. Go to the Paychecks List tab and set the date range. 
5. Select the paycheck that you want to edit.
6. Click Delete or Void at the bottom.    

I've added sample screenshots for additional reference:

In recreating the paycheck, you can refer to this article as a reference in case you need additional details on how to do it. Then, make sure to select the correct pay periods.

You can contact our specialist if the pay periods are not showing on the list.  Due to COVID-19, we have limited support and reduced our support hours. You can reach out to them  from 6 AM-6 PM PT Monday-Friday. 

I'll be here anytime if you have additional questions with the paychecks. Keep safe!