I need to reverse a voided paycheck.

Welcome to the Community, @dc46hodges.

I'm here to provide clarification on undoing a voided paycheck. QuickBooks Online (QBO) is currently unable to offer a way to automatically reinstate a voided transaction. What we can do is to open and view the information of the transaction then manually re-enter it. 

Here's how:

1. Look and open the voided transaction.
2. Choose More at the bottom of the page and select Audit History.
3. Click Show All to view all of the original details and any edits made for the transaction.
4. Take note of all the necessary information to re-enter the transaction.
5. Re-enter the paycheck.

I've added this article that can guide you on how to create a paycheck in QuickBooks Online: Learn more in Creating a Paychecks.

Don't hesitate to click the Reply button for further assistance. I'd be more than happy to help you out. Keep healthy and safe.

I got to the voided check and opened the transaction. There is no "More" at the bottom of the page or a way to get to "audit history". This is the payroll check for Nov 1 - 15. In the mean time I have also somehow duplicated the payroll for 10/15-10/30 but did not submit this. Please advise me how to fix the payroll for November and get rid of this extra check for 10/30.  Thank You, Shirley

Welcome to the Community, Shirley21.

You can access your audit log by using the Gear (⚙️) icon, then selecting Audit log.

Once you've accessed it, your Filter panel can be used to narrow the search results and find what you're looking for.

Voided paychecks will also still show up in your payroll check list and reports.
 

As for October's duplicated paycheck, you can delete it since it's invalid. Doing so will prevent its unprocessed direct deposit from occurring.
 

Here's how:
1. In the left menu bar, go to Payroll or Workers, then Employees.
2. Open your Paycheck List under Run Payroll.
3. Enter a custom date range if necessary.
4. Choose which paycheck(s) you want to delete.
5. Click Delete.
6. Tick the checkbox to confirm deletion.
7. Select Delete Paycheck.
 

You'll be able to find many helpful resources about using your audit log and QuickBooks Online Payroll subscription in our help article archives.
 

I'll be here to assist if there's any additional questions. Have a fantastic day!