Accept Klarna
payments on WHMCS
Install the free PaymentHood module for WHMCS, connect your Klarna account, and Klarna appears as a payment option at checkout. No custom gateway code, and no second integration when you add another provider later.
- SEK
- NOK
- DKK
- EUR
- GBP
- USD
- Platform
- WHMCS 7.0+
- Provider
- Klarna
- Install via
- Apps & Integrations
- Billing
- One-time & recurring
- PaymentHood fee
- None
Klarna on WHMCS at a glance
- WHMCS version
- WHMCS 7.0+
- Where you install it
- WHMCS admin → Apps & Integrations
- Coverage
-
- Sweden
- Norway
- Denmark
- Finland
- Germany
- United Kingdom
- United States
- Currencies
-
- SEK
- NOK
- DKK
- EUR
- GBP
- USD
- Billing models
- One-time checkout and recurring renewals — WHMCS generates both, and the module handles both.
- Cost
- The module is free and open source. You pay Klarna's own fees, published on their pricing page (opens in new tab). PaymentHood adds nothing on top.
Coverage, currencies and payment methods as published by Klarna, who set and update them. For the current list see Klarna's own documentation (opens in new tab).
What WHMCS customers can pay with
Each method Klarna supports appears in your WHMCS checkout. Enabling one is a PaymentHood dashboard setting — nothing changes on the WHMCS side.
Pay in instalments
The order is split into scheduled payments
Pay later
The shopper is invoiced after delivery
Pay now
Immediate payment through Klarna's checkout
Connect Klarna to WHMCS
Four steps, no code. The full walkthrough with screenshots is in the WHMCS installation guide.
Open a Klarna account
Register with Klarna and finish their onboarding. Funds settle from Klarna to your own bank account.
Add it in PaymentHood
Paste your Klarna credentials into the PaymentHood dashboard. They stay server-side and never reach your storefront.
Install the module
Download the WHMCS module and install it from Apps & Integrations in your WHMCS admin.
Enable and test
Paste your PaymentHood API key into the module settings, run a sandbox order end to end, then switch to live.
Rather than a direct Klarna module
A single-provider module works until you need a second provider. These are the parts you would otherwise build and maintain yourself.
- Webhook security
- Signed push notification, validated before an order is released
- Payment verification
- Server-side order status re-check against the Klarna API before fulfilment
- Credentials
- API username and password issued per market, held server-side in PaymentHood
- Add a second provider without touching your WHMCS checkout
- Automatic failover when Klarna is unreachable, instead of a failed order
- Idempotent charge creation, so a double-submitted order is not a double charge
- One reconciliation view across every provider you run
- Free and open source — read the module on GitHub (opens in new tab)