PayPal allows payment through credit cards, bank accounts, buyer credit, or PayPal account balances. You can use PayPal as a payment provider for customer checkout and processing for your Shopify store.
Depending on your store's location, you might be able to use PayPal to pay your Shopify bills. For more information, see Billing FAQs.
PayPal is one of Shopify’s default payment providers. As soon as you open a store, you're given a PayPal Express Checkout account with the email you used to sign up for your Shopify store. Before you can collect payments for orders made with PayPal, you need to set up your PayPal account.
You're charged third-party transaction fees each time a customer makes a purchase using this payment method, unless you also activate Shopify Payments. With Shopify payments enabled, you aren't charged third-party transaction fees on orders.