Thanks for joining in on this thread, cddb.

I'd like to verify some details if you don't mind. When you say to void the original expense line, do you have these expenses added on a journal entry or other type of transactions? If you only have one downloaded transaction in the Banking section and you've match it to the expenses you've recorded in QuickBooks Online, then you're good to go.

The other way is to exclude the downloaded transaction, then manually clear the expenses in your register. This way, you're not getting any duplicates and you can easily reconcile the account later on.

To exclude, here's how:

1. Go to Transactions > Banking.
2. In the For review tab, put a check mark on the duplicate transactions.
3. Click the Exclude button.

Here's a sample screenshot for a visual reference:

After excluding these transactions, you can delete them in the Excluded section. To get an overview about the process, please check out this link: Exclude a bank transaction you downloaded into QuickBooks Online.

For clearing the expenses recoded in QuickBooks, you can follow these steps:

1. On the left panel, click Accounting > Chart of Accounts.
2. Find the bank where the transactions are posted and click the View register link.
3. Locate the transactions and under the Reconcile (indicated by a check mark) column, click on the blank field until you see the letter C. This means cleared while R means Reconciled.
4. Hit Save.

Here's a sample screenshot of what the page looks like:

When you're ready to reconcile the bank account, you can watch a video tutorial in this article: Reconcile an account in QuickBooks Online.

Please don't hesitate to leave a reply on this thread if you need more assistance regarding the steps or have additional questions. I'm here to help you out. Take care and stay safe.