Accept a Klarna payment

A Checkout Session must satisfy all of the following conditions to support Klarna payments:

• Prices for all line items must be in the same currency. If you have line items in different currencies, create separate Checkout Sessions for each currency.

Use this guide to learn how to enable Klarna—it shows the differences between accepting a card payment and using Klarna.

Enable Klarna as a payment method

When creating a new Checkout Session, you need to:

1. Add klarna to the list of payment_method_types
2. Make sure all your line_items use the same currency.

Stripe::Checkout::Session.create({
  mode: 'payment',
  payment_method_types: ['card'],
  payment_method_types: ['card', 'klarna'],
  line_items: [{
    price_data: {
      currency: 'usd',
      # To accept `klarna`, all line items must have currency: eur, dkk, gbp, nok, sek, usd, czk, ron, aud, nzd, cad, pln, chf
      currency: 'eur',
      product_data: {
        name: 'T-shirt',
      },
      unit_amount: 2000,
    },
    quantity: 1,
  }],
  success_url: 'https://example.com/success',
  cancel_url: 'https://example.com/cancel',
})

Fulfill your orders

After accepting a payment, learn how to fulfill orders.

When testing your Checkout integration, select Klarna as the payment method and click the Pay button. In test mode, you can then simulate different outcomes within Klarna’s redirect.

Below, we have specially selected test data for the currently supported customer countries. In test mode, Klarna approves or denies a transaction based on the supplied email address.

For production testing, you can use an amount of 3500 in your local currency to test all Klarna payment options besides Financing. For example, if you want to test “Pay in 3” in Italy, you can use a transaction of 35.00 EUR.

Two-step authentication

Any six digit number is a valid two-step authentication code. Use 999999 for authentication to fail.

Repayment method

Inside the Klarna flow, you can use the following test values to try various repayment types:

Learn more about Klarna disputes and refunds.