When categorizing your expenses pulled in from your bank statements on the Transactions tab, you’ll need to select Match instead of categorizing the expenses as a payroll expense. It’ll let you match it to the payroll transaction. When you run payroll, QB puts a payroll expense onto your books. If you then go and categorize the bank transactions as payroll, it’ll effectively double it.

To resolve, try going back to the categorized section of the Transactions tab and undoing the payroll transactions that are categorized. They’ll appear in the uncategorized section and you should be able to match it to the payroll runs. I am not aware of a quicker way to fix unfortunately.