Hey there, @baysalr.
 

Glad to have you here in the Community. Once on the History by Account screen, you'll see a breakdown first by year. To see specific months within a given year, hit the Dropdown arrow. Only months that were reconciled using the Reconciliation tool in QuickBooks Online will appear in this report. If you imported from QuickBooks Desktop or manually reconciled transactions in the register, those won't appear in this report. You can find the Statement Ending Date under the first column on this report.You can also specify the date range using the Report period box. I've included a screenshot below to outline how you can find this information.

If you'd like to learn more about viewing reconciliation history, I recommend: How do I view, print, or export a reconciliation report?

If you have any other questions, use the Reply button below. I'll be here for you. Have a great day!