Outlined below are Shopify requirements in order to sell subscriptions on your store.
Eligibility requirements
To use subscriptions, you must be using one of the following gateways as your payment gateway:
Customers can also use accelerated checkouts such as Shop Pay, Apple Pay, Google Pay, or PayPal to purchase subscriptions.
Customers can't use local payment methods such as Klarna, mollie iDEAL, and Sofort to purchase subscriptions.
For up-to-date official Shopify documentation on this topic, click here.