Importing data directly from QuickBooks Desktop to QB Online International is unavailable, anthonybutler.
You'll need to manually export the data from QBDT, and import it in QBO. The information you can export includes the following:
You can check this article for the detailed steps on how to export: https://quickbooks.intuit.com/learn-support/en-us/manage-lists/import-or-export-ms-excel-files/00/20....
Then, you can import the data in QBO with these helpful articles:
However, you can also check out Odyssey. It automatically moves your company’s financial data to QBO from QBDT. You can learn more here: https://community.intuit.com/articles/1760414.
You can go back to this post if you have additional questions.