PSD2 Explained: What European Digital Businesses Need to Know
Understanding PSD2 and Its Impact on Digital Commerce
The European payments landscape has undergone significant transformation over the past few years, and one regulation continues to shape how digital businesses process payments across Europe: PSD2.
Whether you operate a SaaS platform, digital subscription service, software company, online marketplace, or ecommerce business, understanding PSD2 is essential for maintaining compliance, reducing payment friction, and maximizing customer conversions.
In this guide, we’ll explain what PSD2 is, how it affects online businesses, and what companies need to do to stay compliant while optimizing the customer payment experience.
Whether you operate a SaaS platform, digital subscription service, software company, online marketplace, or ecommerce business, understanding PSD2 is essential for maintaining compliance, reducing payment friction, and maximizing customer conversions.
In this guide, we’ll explain what PSD2 is, how it affects online businesses, and what companies need to do to stay compliant while optimizing the customer payment experience.
What Is PSD2?

PSD2, or the Second Payment Services Directive, is a European Union regulation designed to modernize payment services, increase competition, enhance consumer protection, and improve payment security across the European Economic Area (EEA).
According to the European Commission’s PSD2 framework, PSD2 introduced several changes to the payments ecosystem, including:
- Stronger authentication requirements for online transactions
- Greater transparency in payment processing
- Increased consumer protection
- Open banking initiatives that allow third-party providers to access banking data with customer consent
- Enhanced security standards for digital payments
The regulation applies to businesses accepting payments from customers within the EEA, regardless of where the merchant is located.
For businesses selling internationally, PSD2 is just one aspect of broader cross-border commerce requirements. Companies must also consider localization, taxation, and regional payment preferences when expanding globally.
What Is Strong Customer Authentication (SCA)?
One of the most significant aspects of PSD2 is Strong Customer Authentication (SCA).
The European Banking Authority provides detailed guidance on SCA requirements. SCA requires customers to verify their identity using at least two of the following authentication factors:
The European Banking Authority provides detailed guidance on SCA requirements. SCA requires customers to verify their identity using at least two of the following authentication factors:
Something They Know
- Password
- PIN code
Something They Have
- Mobile phone
- Security token
- Banking application
Something They Are
- Fingerprint
- Facial recognition
- Voice recognition
The goal is to reduce online payment fraud and increase consumer trust in digital transactions.
For many online businesses, SCA is most commonly implemented through 3D Secure 2 (3DS2), which allows additional authentication when necessary while minimizing disruption to the checkout experience.
Businesses operating subscription models should also understand how authentication requirements impact recurring billing and renewal workflows.
For many online businesses, SCA is most commonly implemented through 3D Secure 2 (3DS2), which allows additional authentication when necessary while minimizing disruption to the checkout experience.
Businesses operating subscription models should also understand how authentication requirements impact recurring billing and renewal workflows.
Which Transactions Are Subject to PSD2?
PSD2 generally applies to electronic payments initiated by customers within the European Economic Area.
Examples include:
Examples include:
- SaaS subscriptions
- Software purchases
- Digital downloads
- Ecommerce transactions
- Online service payments
- Mobile app purchases processed outside app stores
However, not every transaction requires additional authentication.
Several exemptions may apply, including:
Several exemptions may apply, including:
- Low-value transactions
- Recurring subscription payments
-
Merchant-initiated transactions
- Trusted beneficiaries
- Low-risk transactions supported by fraud analysis
These exemptions help businesses balance security and conversion rates.
How PSD2 Impacts Digital Businesses
1. Checkout Experience
Additional authentication steps can create friction if not implemented correctly.
Businesses that rely on outdated payment flows may experience:
Businesses that rely on outdated payment flows may experience:
- Increased cart abandonment
-
Lower authorization rates
-
Reduced customer satisfaction
Modern payment solutions use intelligent authentication and exemption management to minimize disruption while remaining compliant.
2. Subscription Billing
Subscription-based businesses face unique PSD2 challenges.
While the initial subscription payment often requires SCA, subsequent recurring charges may qualify for exemptions under certain conditions.
Proper subscription payment management is essential to avoid unnecessary payment failures and involuntary churn.
While the initial subscription payment often requires SCA, subsequent recurring charges may qualify for exemptions under certain conditions.
Proper subscription payment management is essential to avoid unnecessary payment failures and involuntary churn.
3. International Expansion
Companies selling across Europe must ensure that payment processes meet local regulatory requirements.
PSD2 compliance becomes increasingly complex when operating across multiple countries, payment methods, and currencies.
Businesses expanding internationally need payment infrastructure capable of managing regional compliancet requirements automatically.
These layers are not visible to the end user, but they directly shape checkout performance, operational cost, and expansion speed.
At scale, checkout becomes less a product surface and more a global commerce architecture problem.
PSD2 compliance becomes increasingly complex when operating across multiple countries, payment methods, and currencies.
Businesses expanding internationally need payment infrastructure capable of managing regional compliancet requirements automatically.
These layers are not visible to the end user, but they directly shape checkout performance, operational cost, and expansion speed.
At scale, checkout becomes less a product surface and more a global commerce architecture problem.
4. Fraud Prevention
PSD2 has significantly improved payment security throughout Europe.
By combining Strong Customer Authentication with advanced fraud monitoring tools, businesses can reduce chargebacks and fraudulent transactions while maintaining a smooth customer experience.
By combining Strong Customer Authentication with advanced fraud monitoring tools, businesses can reduce chargebacks and fraudulent transactions while maintaining a smooth customer experience.
Common PSD2 Challenges for Digital Merchants

Despite its benefits, PSD2 can create operational complexity.
Many businesses struggle with:
Many businesses struggle with:
- Understanding evolving regulatory requirements
- Managing authentication flows across multiple payment providers
- Maintaining high conversion rates
- Handling recurring subscription payments
- Optimizing authorization rates
- Managing compliance across different European markets
As payment regulations continue to evolve, maintaining compliance often requires dedicated expertise and ongoing monitoring.
Why PSD2 Becomes More Complex at Scale
For companies operating in a single market, PSD2 is manageable. But as businesses expand across Europe, complexity increases exponentially.