Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hello Chris Grainger,
Thank you for reaching out in Microsoft Q&A forum.
I understand the concern about being charged for a Family plan when you only have one computer and want the most cost effective option.
Microsoft 365 Family is not the cheapest choice for a one computer household, because it is designed for up to six people and is priced higher than single user plans. For one person using one computer, Microsoft 365 Personal is usually the better fit because it includes the full desktop apps and costs less than Family. If desktop apps are not needed and you only want storage and web apps, Microsoft 365 Basic is the lowest priced option, but it does not include the installed Word, Excel, or PowerPoint apps.
In short, for one computer with desktop apps, Microsoft 365 Personal is typically the cheapest suitable option, while Family only makes sense if multiple people will use it.
Your references: Compare all Microsoft 365 products
Hope this helps