How Does Klarna Make Money if It Is Free for Shoppers?

So how does klarna make money if it charges consumers nothing? Merchant fees on every transaction are the primary source. Interest on financing, late fees, interchange, and advertising fill the rest. Merchants pay because Klarna drives measurable sales lift.

What Klarna Is and How the Transaction Works

Klarna is a Swedish financial technology company founded in Stockholm in 2005. It secured a Swedish banking license in 2017, expanded to more than 45 countries, and listed on the New York Stock Exchange in September 2025 under the ticker KLAR, as reported by Al Jazeera.

As of 2026, the platform serves over 150 million consumers and partners with more than 500,000 retailers.

The basic transaction flow works as follows. A customer selects Klarna at checkout. Klarna runs a soft credit check, which does not affect the customer's credit score, and approves the transaction in seconds.

Klarna then pays the merchant the full purchase amount immediately. The customer repays Klarna directly, on the schedule they chose at checkout. Klarna absorbs any default risk, not the merchant.

Three payment options are available. Pay in 30 gives customers a month to pay in full. Pay in 4 splits the total into four equal payments made every two weeks. Both are interest-free.

A third option, long-term financing over 6 to 36 months, does carry interest and is typically used for higher-value purchases.

How Does Klarna Make Money?

Klarna's revenue comes from six streams. Merchant fees generate the largest share by a significant margin, with the remaining streams adding meaningful but secondary income.

How Klarna Makes Money from Merchants

Merchant fees accounted for 57 percent of Klarna's 2024 revenue. Every time a customer checks out using Klarna, the merchant pays a flat transaction fee of $0.30 plus a variable percentage of the sale.

For the Pay in 30 and Pay in 4 options, that percentage runs up to 5.99 percent. For the long-term financing option, it is up to 3.29 percent.

These rates are higher than standard credit card processing fees, which typically range from 1.5 to 3 percent.

Merchants accept the difference because Klarna has demonstrated measurable sales impact: retailers using the service report average order values rising 20 to 30 percent and conversion rates improving by up to 44 percent, according to CNBC's analysis of buy now, pay later adoption among major retailers.

For most e-commerce businesses, that lift more than covers the additional fee.

In practice, the merchants most likely to integrate Klarna are those with mid-to-high average order values, such as apparel, electronics, and home goods retailers, where giving customers a payment option reduces purchase hesitation.

Interest on Consumer Financing

Long-term financing, available for purchases paid over 6 to 36 months, carries an annual percentage rate of up to 19.99 percent. The actual rate varies based on the customer's credit profile. This stream contributed 24 percent of 2024 revenue.

It is worth noting that the two most popular payment options, Pay in 4 and Pay in 30, generate no interest income at all. Klarna deliberately structured those options as interest-free to encourage broad consumer adoption, which in turn grows the merchant-fee base.

Consumer Fees

Consumer fees, including late payments and card subscriptions, made up 12 percent of 2024 revenue. Late fees apply when a customer misses a payment deadline on an interest-free plan. The fee amount is tiered by order value rather than applied as a flat charge.

Klarna also charges a monthly fee for the Klarna Card in certain markets, typically $3.99 per month after the first year. A subscription service called Klarna Plus, offering cashback and other benefits, adds another recurring consumer revenue line.

Klarna has stated publicly that it aims to limit reliance on late fees as a revenue driver, partly to maintain its reputation relative to traditional credit products.

Interchange Fees

The Klarna Card, available as a physical card and a virtual card usable via Apple Pay or Google Pay, earns interchange income every time a customer swipes.

Interchange rates typically run 1 to 3 percent per transaction. This functions similarly to how traditional card networks generate revenue on card usage.

The card's existence solves a structural gap in the BNPL model. Without it, Klarna's buy-now-pay-later feature only works at merchants that have formally integrated Klarna at checkout.

The card extends the same deferred-payment functionality to any retailer that accepts a standard card payment.

Advertising and Brand Partnerships

Klarna's shopping app generates advertising revenue through sponsored product placements, affiliate commissions, and programmatic ads built on its transaction and browsing data. This stream contributed approximately $180 million, or 6 percent of 2024 revenue.

The advertising business is structurally straightforward. Klarna has a large, purchase-intent audience, and merchants can pay for visibility within that audience. The same retailers already paying transaction fees can pay again for prominent placement in the shopping feed.

This double monetization of the same merchant relationship is a relatively recent addition to the model and continues to grow.

Banking Services

Klarna holds a Swedish banking license and offers savings accounts, checking accounts, debit cards, and international transfers, primarily in European markets.

Revenue from banking comes through the interest rate differential between what Klarna earns on lending and what it pays on deposits, foreign exchange fees, and debit card transaction income.

Banking is not broken out as a separate line in Klarna's published financials as of 2026, so the precise contribution is not publicly confirmed. It is an expanding part of the business rather than a current primary driver.

Klarna Revenue Mix (2024)

Source: Klarna 2024 annual financial results.

Financial Performance

Klarna posted total revenue of $2.81 billion in 2024, a 24 percent increase from 2023, according to TechCrunch's reporting on the company's IPO filing.

Gross merchandise volume reached $105 billion, up 14 percent year over year. For the first half of 2025, revenue came in at $1.52 billion, up 21 percent from the same period in 2024.

Profitability has been a more complicated story. Klarna recorded a net loss of $244 million in 2023. In 2024, it reported net income of $21 million, its first annual profit since 2019.

The turnaround was driven by a reduction in credit losses, tighter cost management, and growing revenue across all streams.

Credit loss management is central to the model's sustainability. Klarna pays merchants upfront and collects from consumers, so any default falls on Klarna's balance sheet.

A significant rise in delinquencies would compress margins quickly. The 2023-to-2024 improvement in credit losses was a meaningful factor in reaching profitability.

Conclusion

Klarna's model inverts traditional credit: consumers pay little or nothing, and merchants cover the cost in exchange for higher sales.

Merchant fees dominate income, with interest, consumer fees, interchange, and advertising adding the rest. The business turned its first annual profit in five years in 2024.

Frequently Asked Questions

Does Klarna charge consumers interest?

Only on the long-term financing option, which runs 6 to 36 months at up to 19.99 percent APR. Pay in 4 and Pay in 30 carry no interest.

How does Klarna make money from merchant fees specifically?

Merchant fees made up 57 percent of Klarna's 2024 revenue, making them the single largest income source by a wide margin.

Is Klarna profitable?

Yes. Klarna reported net income of $21 million for the full year 2024, its first annual profit since 2019. It had reported a $244 million net loss in 2023.

How does the Klarna Card generate revenue?

Through interchange fees of roughly 1 to 3 percent per transaction, plus monthly subscription fees in select markets and foreign transaction fees.

Why do merchants pay Klarna's fees if they are higher than credit card rates?

Because Klarna demonstrably increases sales. Retailers using the service have reported order value increases of 20 to 30 percent and conversion rate improvements of up to 44 percent, which typically outweighs the higher processing cost.