I'm here to provide information about the amount showing in your payroll expense in QuickBooks Online, Janson.
It's possible that you processed two paychecks. Kindly verify that the payroll list you managed is not duplicated. If you have issued a paper check and it is a duplicate transaction, you can void the duplicate. If using direct deposit, I recommend reaching out to our payroll support team to have it voided. You can check our payroll support hours here: Contact Payroll Support.
On the other hand, if it's only one transaction in the Payroll list, be sure to review the Profit and Loss Report to identify any instances where an amount appears to be doubled with the same amount in that certain period of time. If there's a doubled amount, you might add the bank feed transactions, instead of matching them. In this case, you can take the necessary steps to undo the doubled entries and then proceed to match them.
Moreover, you may also want to run payroll reports in QuickBooks. It also helps you view helpful information about your business and employees.
Please comment below if you have more concerns about managing your transactions in QBO Payroll. I'm always here to help you out.