Hi there, @elingbookkeeping.

Allow me to join the thread and provide information about matching bank downloaded transactions in QuickBooks Online (QBO).

There are possible reasons why our system is unable to recognize the match in QuickBooks. These are due to the following:

• The transaction is older than 180 days.
• The dollar amount in QuickBooks is different than what cleared the bank.
• The transaction type is different in QuickBooks than at the bank. QuickBooks wants to match a check with a check and an expense with an ACH or debit/credit card swipe.
• The transaction was recorded in a different bank account.
• The transaction from the bank is a payment/ deposit of two or more open transactions in QuickBooks.

To display all the possible matched transactions, let's use the Find Match option. You can follow the steps provided by my colleague above. 

 For more information about the process of matching bank transactions, check out this article: Categorize and match online bank transactions in QuickBooks Online.

For additional resources about managing your banking transactions, you can check out the topics from this link: Find help with bank feeds and reconciling accounts for QBO.

Drop me a comment below if you have any other questions about matching transactions in QuickBooks. I'll be more than happy to help. Have a great day.