How to add Klarna and Clearpay to your website
Klarna and Clearpay is buy-now-pay-later options offered through your existing payment provider, used by businesses selling higher-ticket services or products where cost is the objection. Here's how to put it on your own website, which embed option to pick, and what goes wrong.
Quick answer
Get the code from your payment provider's dashboard — Stripe, Square and most gateways enable Klarna and Clearpay as payment methods rather than requiring separate integration. For most people the right choice is the enable in your gateway — switch the method on in Stripe or Square; it then appears at checkout automatically. Paste it into a code or embed block on your site — not a plain text field — then place it beside your main call to action and test the whole flow on a phone before relying on it.
Klarna and Clearpay: which option to use
| Option | What it does |
|---|---|
| Enable in your gateway | Switch the method on in Stripe or Square; it then appears at checkout automatically. |
| On-site messaging | Provider-supplied badges showing 'from £X/month' near your price, which is where most of the conversion effect comes from. |
| Payment-link support | Payment links can include these methods, so you do not need a full store. |
Step-by-step
- 1
Find the code or link in your account
Klarna and Clearpay keeps this in your payment provider's dashboard — Stripe, Square and most gateways enable Klarna and Clearpay as payment methods rather than requiring separate integration. Copy what you need before touching your website — most of the time people lose is spent hunting for the snippet, not installing it.
- 2
Pick the right option for the job
The table above is the decision. Enable in your gateway: Switch the method on in Stripe or Square; it then appears at checkout automatically. On-site messaging: Provider-supplied badges showing 'from £X/month' near your price, which is where most of the conversion effect comes from. Choosing before you paste saves rebuilding the section later.
- 3
Paste it into a code or embed block
This needs an HTML, code or embed block — not a plain text field, where the code will simply appear as text on your page. On Adviita, ask the AI editor to add an embed section and drop the code in. On WordPress use a Custom HTML block, on Squarespace a Code block (Business plan or above), and on Wix an Embed HTML element.
- 4
Put it where the decision happens
Getting paid should take the customer as few taps as possible — every extra step is money left on the table. A widget three scrolls down does a fraction of the work of the same widget beside your main call to action. Decide what the page is for, then place it at the point the visitor is deciding.
- 5
Check it on an actual phone
Most visitors to a small business website arrive on a phone, and embeds are where mobile layouts break. Open your live site on your own phone and confirm it loads, fits the screen without sideways scrolling, and does not push your contact button out of view. Third-party embeds are also the most common cause of a slow page, so if it noticeably delays loading, consider a plain link instead.
- 6
Test it end to end before you rely on it
Run through the whole flow yourself as a customer would — make a small real payment — and confirm what should happen actually happens. Broken embeds fail silently, and the first person to notice is usually a customer who has already given up.
Tips & best practices
- ▸You get paid in full upfront; the provider carries the credit risk. The cost is a higher transaction fee, so check it against your margin.
- ▸Availability varies by country and by what you sell — some categories are excluded outright.
- ▸Financial promotions are regulated. Be careful how you advertise instalments, and use the provider's approved messaging rather than writing your own claims.
- ▸Re-test the embed after any change to your site, your plan, or the connected account — third-party widgets break quietly and nothing tells you.
Common questions
Do I need a separate account for Klarna or Clearpay?
+−
Usually not. Both are available as payment methods within Stripe, Square and most mainstream gateways — you enable them in your dashboard and they appear at checkout. Separate direct integration exists but is unnecessary for most small businesses.
Is buy-now-pay-later worth offering?
+−
It helps most where price is the main objection and the amount is substantial — a course, a package of sessions, a higher-ticket product. The lift comes largely from showing the instalment price next to your headline price, not just from having it at checkout. Weigh it against the higher fee.
Do I need a developer to add Klarna and Clearpay to my site?
+−
No. Every option here is copy and paste into a code or embed block, which every mainstream website builder provides. The only genuine blocker is a builder or plan that does not allow custom code at all — Squarespace, for instance, requires a Business plan or above for code blocks.
Will adding Klarna and Clearpay slow down my website?
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Any third-party embed has some cost, because it loads code from another company's servers. One is usually unnoticeable; four or five on the same page is where small business sites become visibly slow. If page speed matters to you, prefer a plain link over a script wherever the option exists, and keep embeds to the pages that genuinely need them.