Hello there, @dgegeev.

Allow me to join this conversation and help you import your invoices into QuickBooks Online.

Currently, the option to import invoices into QuickBooks Online isn't available. However, you can import Invoices from text files or Excel spreadsheets directly into QuickBooks Online through a third-party application. To learn more about this app, please check out this link: QuickBooks App.

Also, I'd encourage you sharing this idea to our product Product Developers. Doing this helps them understand where we can improve and what features should be added so we can better serve you. Just click on the Gear icon and select on Send Feedback Online to send your suggestion. 

Also, you can visit our Online Blog to read the latest news and updates from QuickBooks including product improvements, company news, and leadership spotlights.

Please let me know if there's anything else you need. I'll be around to help you out. Have a great day!