Subscription plans, such as monthly and annual, are set by writers. Substack won't charge you any additional fees and we accept most major credit cards such as Visa, MasterCard, Discover, and American Express.
Publishing is free on Substack– no matter how many subscribers you have!
If you add paid subscriptions, we charge 10% and there is a credit card fee charged by Stripe, our payments processor.
Tip: After enabling payments and getting your first paid subscribers, you can view these fees (Stripe and Substack's) on your Stripe dashboard.