Test Credentials

In order to try out the smoothest user experience when paying with Klarna, please request a test account by clicking below:

Get a test account.

Purchases completed in the test environment are not processed by our production system and will not result in proper invoices or any fees collected on invoices.

Note: You may not transfer any real personal data to us during testing.


Depending on which product you have integrated, we offer a few different triggers:


Klarna Checkout test triggers

In our playground (test) environment, you can use any valid address to make a test purchase. You can trigger different behaviour depending on your need. The following options are available:

Desired behaviourConsumer email address pattern
Only present pre-paid optionsexample-email+red@example.com

For example, you could use john.doe+red@abcstore.com as the customer's email address to trigger a checkout that only offers pre-paid payment methods such as card.

Klarna Payments test triggers

The default response from our test environment is positive. You can use various email addresses to trigger different (stateless) behaviour depending on your need. The following options are available:

Desired behaviourConsumer email address pattern
New sign up..“+require_signup@”..
Returning customerany email

Show form: False
(only when prescreen is enabled)

Approved: False..“+denied@"..

.."+pend-{status}-{time delay}@"..

  • {status} the expected status after the time delay
    • Options are: accept or reject
  • {time delay} the time delay before the decision is made of {status}
    • Must be in two digit number format in the range 00-99


For example, you could use john.doe+require_signup@abcstore.com as the customer's email address to trigger Klarna's new customer sign up dialogue within the widget


More information

  • Request API trial account credentials to authenticate to Klarna's playground
  • Go to the Environments page to find information about how to reach Klarna's playground interfaces


Test credit card

Credit card number: 4111 1111 1111 1111
CVV: 123
Exp: 12/16 (Or any other valid date in the future)