Klarna Payments for WooCommerce


Choose the payment that you want, Pay Now, Pay Later or Slice It. No credit card numbers, no passwords, no worries.

Choose the Klarna features you want – and only the features you want – to reduce purchase stress and improve your user experience. We have several financing and direct payment options to meet your needs, and they’re all easily integrated into your existing buying journey.

Pay Now (direct payments)

Customers who want to pay in full at checkout can do it quickly and securely with a credit/debit card.Friction-free direct purchases while maximising the value for your business thanks to guaranteed payments. If they have a Klarna account they can save their details and enjoy one-click purchases from then on.

Pay later (invoice)

Try it first, pay it later. Delayed payments for customers who like low friction purchases and to pay after delivery.

Slice it (installments)

Installment, revolving and other flexible financing plans let customers pay when they can and when they want.

How to Get Started

What’s the difference between Klarna Checkout and Klarna Payments?

Klarna as your single payment provider keeps everything under one roof. You’ll have one agreement, one point of contact, one settlement file, one payout with Klarna Checkout. It only takes a single integration to deliver the full Klarna hosted checkout experience through a widget placed on your site.

Klarna Payments removes the headaches of payments, for both consumers and merchants. Complement your checkout with a Klarna hosted widget located in your existing checkout which offers payment options for customers with a smooth user experience.



  1. Upload plugin folder to to the “/wp-content/plugins/” directory.
  2. Activate the plugin through the “Plugins” menu in WordPress.
  3. Go WooCommerce Settings –> Payment Gateways and configure your Klarna Payments settings.
  4. Read more about the configuration process in the plugin documentation.


Which countries does this payment gateway support?

Klarna Payments works for merchants in Sweden, Denmark, Finland, Norway, Germany, Austria, the Netherlands, UK and United States.

Where can I find Klarna Payments for WooCommerce documentation?

For help setting up and configuring Klarna Payments for WooCommerce please refer to our documentation.

Are there any specific requirements?
  • WooCommerce 3.3.0 or newer is required.
  • PHP 5.6 or higher is required.
  • A SSL Certificate is required.

Contributors & Developers

“Klarna Payments for WooCommerce” is open source software. The following people have contributed to this plugin.



2019.09.25 – version 1.9.1

  • Fix – Added check to only add shipping to order lines if shipping is needed for the order.

2019.08.13 – version 1.9.0

  • Feature – Added support for WooCommerce Store Credit plugin.
  • Tweak – Added console logging for Authorize ajax call.
  • Tweak – Changed shipping reference logic for order data sent to Klarna. To be better compatible with future versions of Klarna Order Management plugin.
  • Fix – Limit reference field sent to Klarna to 64 characters.

2019.08.13 – version 1.8.4

  • Fix – Send address data to Klarna from checkout form on load call for US stores. Plugin rewrite caused payment method iframe not to be displayed for US stores.

2019.08.10 – version 1.8.3

  • Enhancement – We now use order data for authorization calls. This prevents issues with difference in formating of adress details between create order and authorization.
  • Enhancement – Changed the text added to the order note to “Payment rejected by Klarna” on a failed authorization calls.
  • Fix – Fixed issue with Sofort, removed a flag that was not needed to be sent with the authorization call.
  • Fix – Fixed an issue where billing_company field could softblock the checkout.
  • Fix – Get currency from the order instead of the WooCommerce default.

2019.07.31 – version 1.8.2

  • Fix – Added handling for failed authorization calls.

2019.07.30 – version 1.8.1

  • Enhancement – Improved JavaScript selectors for some elements. Should increase compatibility with custom themes.
  • Enhancement – Added a failsafe for orders not properly being placed with Klarna.
  • Fix – Fixed issue when it comes to separate sales tax for American merchants.

2019.07.23 – version 1.8.0

  • Feature – Full rewrite of the order flow. Should now be more compatible with other plugin and themes.
  • Feature – Improved debug logging.
  • Feature – Added support for a lot more locales.
  • Tweak – Updated title description for Klarna Payments settings.
  • Misc – Cleaned up JS code. Removed unused functionality.

2019.06.11 – version 1.7.0

  • Feature – Added new Klarna Add-ons page.
  • Feature – Added Klarna On-site Messaging & Klarna order management as available add-ons.

2019.06.03 – version 1.6.5

  • Tweak – Improved logging for debugging purpose.
  • Tweak – Added support for Swedish locale for Finish stores.
  • Tweak – No longer tries to send company name on a B2C purchase.

2019.02.06 – version 1.6.4

  • Tweak – Removed validation of required fields in the Payment method area. Caused an issue with Authorize.net payment gateway.
  • Tweak – Removed the disable on the Place order button since it is no longer needed to catch invalid fields.
  • Tweak – Changed JS library endpoint.
  • Tweak – Added extended description to the payment method title to clarify what it does.

2018.11.27 – version 1.6.3

  • Feature – Added setting to hide “What is Klarna?” link.
  • Tweak – Added filter wc_kp_remove_postcode_spaces to enable removing whitespace from postcode posted to Klarna.
  • Tweak – Removed update order on visibility change.
  • Tweak – Default customer type to b2c if setting is not saved in db.
  • Tweak – Plugin WordPress 5.0 compatible.
  • Fix – Added support for additional required fields (other than Woo standard) on checkout. Prevents Klarna iframe from showing before all fields are entered.
  • Fix – Narrowed search for checkout field changes. Prevents some themes from entering infinite loop that loads the Klarna iframe.
  • Fix – Made payment method title editable again.
  • Fix – Add round to fees sent to Klarna.

2018.10.19 – version 1.6.2

  • Enhancement – Changed so all payment methods have the same ID in frontend as in the factory gateway. Adds support for payment gateway based fees and similar plugins.
  • Fix – Fixed no tax being applied to negative fee.

2018.09.25 – version 1.6.1

  • Fix – Fixed 409 error caused by missing Organization name field.
  • Fix – Better support for Switzerland.

2018.09.20 – version 1.6.0

  • Feature – Added support for B2B purchases.
  • Feature – Added support Switzerland.

2018.08.30 – version 1.5.4

  • Tweak – Added Payment method name settings field.
  • Tweak – Added filter wc_klarna_payments_default_checkout_fields. Makes it possible to select which checkout fields should be used when sending customer data via javascript to Klarna.
  • Tweak – Logging improvments.

2018.08.17 – version 1.5.3

  • Tweak – Added filter kp_wc_api_request_args to be able to override order data sent to Klarna.
  • Tweak – Added filter wc_klarna_payments_available_payment_categories to be able to override wich payment methods that should be available.
  • Tweak – Logging improvements in klarna_payments_session_ajax_update function if request fails.
  • Tweak – Added button for hiding Klarna banner in WP admin. Stays hidden for 6 days and then reappears again (if plugin still is in test mode).
  • Fix – KP payment method not available on Order pay page (to avoid compatibility issues with Realex payment plugin).

2018.07.23 – version 1.5.2

  • Tweak – Add max width to payment method icons.
  • Enhancement – Added Klarna LEAP functionality (URL’s for new customer signup & onboarding).
  • Fix – Added fallback image for 404 on payment gateway icon URL.

2018.06.21 – version 1.5.1

  • Tweak – Payment gateway icons now fetched from Klarnas CDN.

2018.06.08 – version 1.5.0

  • Feature – Switches to Klarnas new /payments endpoint. Displays each Klarna payment method as its own payment option in checkout.
  • Feature – Added support for wp_add_privacy_policy_content (for GDPR compliance). More info: https://core.trac.wordpress.org/attachment/ticket/43473/PRIVACY-POLICY-CONTENT-HOOK.md.
  • Tweak – Switches to $product->get_name() for Klara order line name.
  • Tweak – Adds Klarna dashboard banners and settings page sidebar.
  • Tweak – Added PHP version and Krokedil to user agent.
  • Tweak – Only log messages if enabled in settings.
  • Tweak – Added logging of error response in Klarna create & update session.
  • Tweak – Added function to hide iframes when not needed.
  • Tweak – Added action klarna_payments_template to template. Action used in plugin to maybe create or update session.
  • Fix – Changes the check in set_klarna_country(). No longer uses is_checkout(). Just check for customer country if WC_Customer exist.

2018.01.29 – version 1.4.2

  • Fix – Cleans up translation strings.
  • Enhancement – process_payment method refactoring.

2018.01.25 – version 1.4.1

  • Fix – Fixes WC 3.3 notices.
  • Tweak – Stores Klarna order transaction ID as soon as possible.
  • Tweak – Adds “can’t edit order” admin note.


  • Initial release.