Can I have the payroll and related taxes corrected if a paycheck was erroneously issued to an employee after their termination date?

I'm glad you've posted here in the Community, @jawfedorek. I'm here to ensure you'll correct your payroll and payroll taxes.

In QuickBooks Online Payroll Core, Premium, and Elite, we can fix previous payrolls by voiding, editing, or deleting a paycheck. Since this is a terminated employee and you already sent your payroll to us, we can correct your payroll and payroll taxes by voiding the paycheck. Here are the steps to follow:

1. Go to Payroll and select Employees.
2. Hit the Paycheck list page.
3. Go to the paycheck you want to correct.
4. Select Void on the dropdown arrow.

For visual reference, I've included these screenshots below. 

Once done, the system will automatically recalculate your taxes owed and make any necessary adjustments with the next payroll run.

Additionally, you can refer to this article to watch a video tutorial regarding payroll corrections in QBO: Correcting previous payrolls in QBO.

You can check out this handy material for more insights on how to view tax payments and forms already filed: See Tax Payments And Forms.

Don't hesitate to comment if you have further questions about payroll corrections in QBO. I'd be happy to assist you. Stay safe!