At least you have to consult your boss. Together, you should decide if you should contact your employer's lawyers, apple legal department or both. If you do not follow the rules, put yourself and your employee at risk. I found the following quote on macOS appstore:
You can install applications on any Macs authorized for personal use
https://www.apple.com/ca/osx/apps/app-store/  Read legal ease:
You can contact apple legal.
You must log out of your work ID on your work computer and log in with your personal ID. You will download and install the software. You would log out of your personal apple ID and then log back to your company's apple ID. To get updates, you will log out, log in and log out.