Stripe

Stripe has become the de facto standard for payment processing in the digital economy, and for German SaaS companies and online businesses, it represents the most developer-friendly option available. The platform's API is legendary in the tech community—well-documented, consistent, and powerful enough to build complex payment flows while remaining accessible for simple implementations. For subscription businesses, Stripe Billing handles the entire lifecycle: trial periods, plan changes, proration, dunning, and invoice generation. The Stripe Connect feature enables marketplace businesses to manage payouts to sellers or service providers. German businesses appreciate that Stripe supports SEPA Direct Debit alongside card payments, offering customers their preferred payment method. The integration ecosystem is vast—virtually every German accounting tool from lexoffice to sevDesk connects with Stripe, automating the reconciliation of online payments. While Stripe's fees (1.5% + €0.25 for European cards) can add up for high-volume businesses, the reliability, feature depth, and developer experience typically justify the cost for technology-driven companies.