Klarna has become one of the most widely used payment methods on Shopify UK due to its instalment options, high adoption among younger shoppers, and its ability to improve checkout conversion. However, Klarna also brings some of the highest payment processing fees in ecommerce. As competition increases and margins tighten, UK merchants need a way to reduce their dependency on expensive payment methods without harming conversion.
This guide explains how Klarna fees work, why they are so high, and how adding Pay-by-Bank can significantly reduce costs while maintaining a seamless customer experience.
This guide explains how Klarna fees work, why they are so high, and how adding Pay-by-Bank can significantly reduce costs while maintaining a seamless customer experience.
Klarna Shopify Fees: What UK Merchants Actually Pay
Klarna promotes convenience and improved conversion, but the tradeoff is a fee structure that is substantially higher than traditional card processing.
Klarna Merchant Fees on Shopify UK
Why Klarna Costs More
Merchants pay a premium for:
- Customer financing and credit risk
- Chargeback protection
- Fraud screening
- Access to the Klarna shopping ecosystem
- Longer settlement cycles
Klarna Fees Reduce Merchant Margins
Example: A £100 transaction using Klarna Pay in 3 incurs roughly £6.19 in fees.
For merchants with margins of 20 to 30 percent, Klarna can remove a large share of net profit. When Klarna accounts for 20 to 40 percent of checkout volume, total gateway costs rise substantially.
The Solution: Add Pay-by-Bank on Shopify
Pay-by-Bank, enabled by Open Banking, allows customers to pay directly from their bank account without using cards. It offers:
- Instant settlement
- No card fees
- No chargebacks
- Strong fraud resistance
- Faster, bank-authenticated checkout
Customer Benefits
- Biometric authentication
- No card details
- No credit checks or debt
Merchant Benefits
- Minimal payment fees
- No chargeback exposure
- Improved cash flow
- Reduced fraud
Cost Comparison: Pay-by-Bank vs Klarna vs Shopify Payments
Best-Performing Checkout Structure
Merchants do not need to remove Klarna. Instead, the strategy is to reduce Klarna usage by placing Pay-by-Bank in the primary checkout position.
Recommended checkout order:
- Pay-by-Bank
- Card payments
- Klarna
How Pay-by-Bank Works on Shopify
- Install a compatible Open Banking provider.
- Enable it through Shopify Admin.
- Add clear messaging explaining the benefits.
- Optionally provide incentives (2–5% discount, free shipping).
Because Pay-by-Bank fees are minimal, incentives remain profitable.
Example: Klarna-Heavy Store Saves Thousands
- £150,000 monthly revenue
- Klarna used on 35 percent of orders
- Average Klarna fee: 5.99 percent
Monthly Klarna cost: £3,147
Annual Klarna cost: £37,764
After shifting 25 percent of Klarna users to Pay-by-Bank:
- Pay-by-Bank fee: 0.5 percent
- New monthly cost: £596
- Annual savings: over £30,000