# Link for Financial Connections: Support for businesses

## What is Link in my Financial Connections authentication flow?
Link is Stripe's fast checkout solution, but it also enables your customers to authenticate faster on [Financial Connections](http://stripe.com/financial-connections) by allowing them to reuse bank account details they've previously saved to Link. Customers who save their account to Link at any of the hundreds of thousands of businesses using Link will be able to seamlessly share their account details the next time they use Financial Connections resulting in higher conversion, lower latency, and increased reliability. For your customers, saving and reusing their bank accounts is optional.
This works across Financial Connections use cases. Whether you’re leveraging Financial Connections to facilitate ACH payments, payouts or using it to access your customers’ bank data.
## Does Link impact my pricing?
There’s no change to pricing. Link is an optimization to the existing Financial Connections integration, enabling you to benefit from increased conversion without added fees.
## How will Link impact my conversion rate and overall customer experience?
Link improves conversion by providing a familiar, streamlined experience for returning Link users, who can easily reuse their saved bank account details. Past experiments have shown that Link in the Financial Connections experience is conversion-positive.
Returning customers who have saved their bank account details with Link across the Stripe ecosystem can go through a more streamlined authentication flow, making it faster and easier to connect their accounts. These customers convert at a higher rate when connecting their accounts than customers who aren't using Link.
Customers without a Link account can choose to create one in the **Financial Connections** authentication flow. Saving or reusing a bank account is always optional. Choosing not to save an account doesn't affect conversion, the ability to make payments, or access to data.
## How do I leverage Link with Financial Connections?
To benefit from a streamlined authentication for more customers, make sure you’re [passing email addresses](https://stripe.com/docs/financial-connections#get-started) in the Customer object—we use the email to check if they have saved their account with Link before. This enables us to dynamically present the returning customer with the opportunity to login to Link at the beginning of the flow.