It's nice to see you in this thread, @sgwaltney. I'll share some details about importing QuickBooks Desktop (QBDT) data into your QuickBooks Online (QBO) company.

Yes, you're right. You can import QBDT files in your free trial version of QBO and utilize the new features that our program offers. Know that you'll have to ensure that your free trial or subscription is active. This way, you can get your data in and out of the program anytime. 

Also, please be aware that once your free trial or subscription expires, you can only view your files for a year. That said, you won't have the option to get them out of QuickBooks since you only have the read/view only access. However, you can still re-subscribe to your subscription to access your company files.

In addition, here's an article to help you successfully import your files to your QBO free trial: Move your QuickBooks Desktop file to QuickBooks Online.

I've also got you this article to give you an overview about QBO: Getting Started in QuickBooks Online.

@sgwaltney, I'm happy you've decided to try QuickBooks Online with your business. If you have any additional QuickBooks-related concerns or need help performing specific tasks, know you can always get back to me anytime. Don't hesitate to click the Reply button below. Take care, and have a nice day!