So that’s not exactly how it works, if you decide to purchase a Premium plan, you’ll be required to select a plan that covers all your Members (All members of your Organisation if you decide to upgrade your Org, or all members of your Team if you prefer to upgrade just one Team). But it is not possible to purchase 5 seats and have other members running under the free version. Note that with Premium Org Guests are free, so you only need to pay for users sharing your Organization email domain. If you haven’t yet, I’d recommend checking out this article from our Guide: How to Upgrade & Manage Billing Options in Asana | Product guide • Asana Product Guide. And for more tailored advice, I’d recommend reaching out directly to our Sales Team who will be able to take a look at your account and advise you with the best option for you and your team. Hope this helps!