The easiest way to switch plans is to use the Switch plans button in the admin center.
When a new employee joins, you’ll log into the admin area of Office 365, add the user, and that employee will have full access to Microsoft Office 365. This is a vestige of the old Microsoft Office days when work was clearly split between home and office environments.
It’s a lot easier than dealing with licenses for individual computers. Do lots of people buy personal versions and then work on their business anyway? And how do you even define “business” setting versus a “home” setting? Now that work has moved to the cloud and we can work from anywhere, all the lines have been blurred. As soon as there are two people working at your business, you’ll want to get on the business plans in order to get company email and easily manage users on your plan.
The new admin center is available to all Microsoft 365 admins, and you can opt in by selecting the Try the new admin center toggle located at the top of the Home page.
For more information, see About the new Microsoft 365 admin center.