I cut a paper check and realized the hours from Timesheets didn't correct themselves when I updated them. I need to redo the check. Should I delete it or Void it first?

It's best to delete the check first before reissuing it. Ensure to properly record it in your QuickBooks Online (QBO) Payroll  account, Concrete Steve. To prevent any confusion or errors in your financial records. Once the check is deleted, Let's then proceed to issue a new one with the corrected information.

In QuickBooks, voiding changes the amount of the check to zero but keeps a record of the transaction in your books. Deleting on the other hand removes the transaction entirely in QB. If you haven't paid the payroll taxes yet, you still have the opportunity to adjust the amounts due based on the corrected payroll information. Be sure to document the reason for deleting the original paycheck for future reference.

Here's how to delete the paycheck:

1. Login to your QuickBooks.
2. Go to Payroll, then Employees.
3. Select the Paycheck list.
4. Choose the paycheck you'd like to delete, then select Delete.
5. Click Delete.

You can also check this article on how to print or reprint in QuickBooks Online Payroll. This helps you to decipher your paychecks and is useful for solving wage and hour disputes or tax discrepancies: Print or reprint paychecks and pay stubs.

Feel free to reach out if you have more questions about paycheck and payroll taxes. I'm always here to assist you further. Let me know if there are any other tasks you need help with; I’d be happy to lend a hand.