Hello @SarahBeth1130,
In QuickBooks Online, you can separate two accounts identified by class by exporting and importing them. In QuickBooks Online, there are sets of list entries you can move to separate accounts into two working companies.
That said, here's an article you can read to learn more about the guidelines you need to follow in separating your accounts: Move your lists to QuickBooks Online.
However, I'd still recommend contacting your accountant for guidance in handling your accounts and for the accuracy of your accounting books. If you haven't yet, you can use this link to find a bookkeeper near you: Business is better with a ProAdvisor.
Need help performing any tasks related to your business account and company settings, click here to access and browse all articles for QuickBooks products. This reference contains most resources with steps on how you can update your data and security management, to name a few.
Don't hesitate to post again here if you have other questions or concerns with QuickBooks tasks and navigations. I'm always around happy to help. Stay safe and have a good one!
