I processed payroll already. I didn't notice the days were wrong. How do I fix that?

Let me help you change the incorrect payroll dates in QuickBooks, igonowroadside.

Currently, the option to edit/change a pay period of a paycheck is unavailable. As a workaround, if you manually processed the check, you can delete it and create a new one with the correct paycheck date. If you process payroll through Direct Deposit, you can still cancel it before 5:00 p.m. Pacific Standard Time, and 2 banking days before the paycheck date you accidentally entered.

To start, let's run the Paycheck List report:

1. Navigate to the Reports menu, then enter Paycheck List on the search bar.
2. Click the Funnel icon drop-down to choose a date.
3. Put a checkmark on the paychecks you need to delete, then Delete. 

Once finished, here's how to recreate them with the correct pay period:

1. Click the Payroll menu, and then select the Employees tab.
2. Pick Run payroll, then click an employee. 
3. Enter the necessary information.
4. Hit Preview payroll, then Submit payroll.

For more details on managing and processing payroll, you can refer to these resources: Delete or void paychecks.

To answer your common tax payment and form filing questions, check this article: Get answers to your payroll tax payment and filing questions.

If you need further assistance about changing payroll dates in QuickBooks, feel free to post again here. I'll be around to help you in any way I can.