Hello, Dino.
I understand how essential it is for you to import your budget with classes. We're unable to provide a specific date when this option will be available.
For the time being, you can only create a budget and manually assign it to specific classes. Click the Gear icon and select Budgeting. Then, tap Add Budget to create your budget plan.
You can also look for a third-party application that has the required capability. Go to the Apps menu or use this link to find one: QuickBooks Apps.
You can also read this article to learn more about the budget feature: Create and import budgets into QuickBooks Online.
I've also included the following resources to assist you in accessing, managing, and printing reports for future use:
I'll get back to help you if you have further questions about managing your budget data. Take care and have a nice day.
