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Learn more about Sofort and its payment workflow.

Sofort (Klarna) is one of the most popular online payment method available in Germany and Austria. As with other redirect payment methods, when the customer selects their bank or specifies a BIC, they are redirected to their bank payment site to make the payment. Once the authentication and payment is done, they can be redirected back to your online shop.

Available in Supported currencies Redirect Refund Partial refund Reversal Chargeback Recurring Payout
Germany, Austria, Belgium, Italy, Spain, Netherlands EUR tick tick tick tick tick tick tick


  • Payment security: The customer authenticates on their bank site, so there is no confidential data shared between the merchant and the customer.
  • Increased customer confidence: The Sofort/Klarna brand is recognized and trusted by customers, especially those in Western Europe.
  • Supported by all banks in Austria and Germany

Payment workflow

The following diagram explains workflow for Sofort payments.

Sofort workflow

Step 1: Create an Sofort payment type resource. A resource ID is generated in the response and is used in the workflow to complete the payment.

Step 2: Make a charge transaction with the Sofort resource that you created.

Step 3: Forward the customer to the redirectUrl that is displayed in the charge response.

Step 4: Once the customer makes the payment on their bank portal, redirect the customer to the returnURL specified in the initial charge call.

Step 5: After the transaction, display the result to the customer in the front end of the online shop.

Integration options

Quickly integrate with Unzer without any programming knowledge

Use pre-built, configurable all-in-one pages with your own mix of payment methods

Use pre-built forms and quickly integrate with minimum work on the client side

Integrate with Unzer using your own payment form