Hi there, @Lee0409.

When you use the bank feed in QuickBooks Online, you'll be able to add or match your transactions to ensure QuickBooks Online matches what's in your real-life bank account. I'll explain more about how it works.

To clarify, did you select Add instead of Match? Duplicates occur when you add downloaded transactions that you manually entered into the program. QuickBooks will create a new entry for you using the info from your bank. To avoid this, you have to match them.

 Here's how:

1. Navigate to the Banking menu and select Banking.
2. Select the tile for the account you use for payroll.
3. Go to the For Review tab.
4. Find the payment and click it to expand the details. If there's a similar record found, click the link(s) next to each to get more info. If the match is correct, click Match to accept it. If it’s not, select Find other matches button. Otherwise, if there's no match found, click the Find Match option.
   
5. You can use filters/search to locate the payroll expense. Then, hit Save.

Once done, QuickBooks marks the transaction on your register as "C," which means cleared. When you next reconcile your bank account, they're already selected, speeding up the bank reconciliation process.

Keep me posted if you need further assistance with this process and find new discoveries along the way! I'd love to chat about it.