How can I see old Journal entries?

You can run your Journal reports to see your saved journal entries in QB Online. 

To do that, just go to Reports at the left navigation and then search for Journal. 

Hi there, varmorr.

Thanks for taking the time to visit the Community. I'd be glad to assist you with locating old Journal entries.

In addition to the steps provided above by gioreq1, you can also view Journal entries by:

1. Clicking the Create icon (+) in the top right corner.

2. Select Journal Entry.

3. Choose the icon with a counter clockwise arrow in the top left corner.

4. Click View More.

5. Here you can view Journal entries and filter for any information you need.

This article provides additional info about the Journal feature in QuickBooks Online: https://quickbooks.intuit.com/community/Help-Articles/Create-a-journal-entry/m-p/192925.

Keep up the great work and please let me know if you have any other questions.