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Swish is Sweden’s mobile payment app, connected to the customer’s bank account. Customers scan a Swish QR code and approve the payment in the Swish app. Payrails processes Swish through Adyen as the payment service provider (PSP). Open the Adyen guide below for its setup steps and request examples.

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How a Swish payment works

Swish is a QR code payment method:
  1. The customer selects Swish at checkout.
  2. Payrails redirects the customer to a Payrails-hosted page that shows the Swish QR code.
  3. The customer scans the QR code with the Swish app and approves the payment.
  4. Payrails receives the final result from the PSP and updates the payment.
Each payment is single-use: the customer confirms every payment on its own. Payrails captures Swish payments immediately, so a successful payment is final. To return funds, refund the payment.

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Supported currencies and countries

Swish supports SEK (Swedish krona) as its only presentment currency.

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Integrate Swish

The Adyen guide covers the PSP-side setup, the Payrails configuration, and the request fields Adyen requires.

Adyen

Swish via Adyen

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Check PSPs

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Ways to integrate Swish

  • Payrails SDK: the Web SDK shows Swish when your workflow returns it as a payment option, and redirects the customer to the Payrails-hosted QR code page. To control how the redirect opens, listen for the actionRequired event.
  • Payrails API: call lookup payment options, then authorize with swish as the paymentMethodCode. The Adyen guide lists the fields Adyen requires.
In both cases, confirm the final result through webhook notifications or the execution status. Don’t treat the customer’s return to your success URL as proof of payment.
Last modified on October 15, 2026