Payment processing is one of the most consequential infrastructure decisions for a SaaS or e-commerce business. The wrong choice costs you in fees, developer time, and capabilities you do not discover you need until you need them. Here is what matters.
The fundamental difference between the three
Stripe is a payment infrastructure company. It handles payments and provides tools to build subscription billing, marketplace payments, fraud prevention, and financial operations around those payments.
PayPal is a payment network with consumer brand recognition. People trust the PayPal button because they know what it is. Its developer tooling is an afterthought compared to Stripe.
Paddle is a merchant of record service. When you use Paddle, Paddle is legally the seller of record for your products. This matters primarily for tax compliance: Paddle handles VAT, GST, and sales tax globally. You collect revenue from Paddle, which handles all the tax complexity.
These three are not equivalent options competing on the same terms. They serve different primary needs.
Stripe: who it is for
Stripe is the default choice for technical SaaS founders building a product where payment infrastructure is core to the product. Its API is the best in the payments industry. Documentation is excellent. The capabilities are extensive.
Stripe handles subscription billing, usage-based billing, one-time payments, invoices, international payments in 135+ currencies, and a checkout UI that converts well. Stripe Radar provides machine learning-based fraud detection. Stripe Tax handles automatic tax calculation in most jurisdictions (though not acting as merchant of record, which matters).
The fees: 2.9% + 30 cents per transaction for standard card payments. International cards and currency conversion add to this.
Use Stripe if: You are building a SaaS product and need a subscription billing system you can customize. You have engineers who can implement a proper Stripe integration. You need detailed programmatic control over payment flows.
Stripe's limitations: You are still responsible for tax compliance in jurisdictions where you operate. Stripe Tax helps calculate and collect taxes, but understanding what you owe and where is still your problem. For a global SaaS without a tax advisor, this is genuinely complex.
PayPal: who it is for
PayPal's main advantage is brand recognition. Some customers, particularly in certain demographics and geographies, trust PayPal and are more likely to complete a purchase when it is available.
PayPal's developer experience is poor compared to Stripe. The API is less coherent, the documentation is harder to navigate, and building custom payment flows is more effort.
PayPal fees are 3.49% + 49 cents for standard card payments through PayPal Checkout (higher than Stripe). For PayPal-to-PayPal transactions, the fee structure differs.
Use PayPal if: Your customer base explicitly prefers PayPal, or you sell in markets where PayPal is more trusted than card payments. Many e-commerce businesses offer PayPal as a secondary payment option alongside Stripe, which captures the PayPal trust factor without making it the primary integration.
PayPal's limitations: Developer experience is significantly worse than Stripe. If you are building a product where payment flow is core to the user experience, PayPal is a frustrating foundation.
Paddle: who it is for
Paddle is the right choice when global tax compliance is the primary concern. If you are selling SaaS to customers across the US, EU, UK, Australia, Canada, and other markets, you face a complex web of VAT, GST, and sales tax obligations. Getting this wrong creates legal liability.
As merchant of record, Paddle takes on that liability. They collect taxes, remit them to the appropriate authorities, and handle the compliance work. You pay a fee (5% + 50 cents per transaction for the standard plan) that is higher than Stripe, but you buy significant compliance peace of mind.
Paddle also handles refunds, chargebacks, and payment disputes as merchant of record. This reduces your operational burden.
Use Paddle if: You are a SaaS company selling globally and you want tax compliance handled for you without building an internal tax operations function. You are willing to pay slightly higher fees in exchange for not having to think about VAT.
Paddle's limitations: You give up some control. Paddle is the seller, so customizing the checkout experience is more constrained. If you need very custom payment flows, Paddle may frustrate you.
The common patterns
Early-stage SaaS, US-focused: Stripe. Start with Stripe Billing for subscriptions. Add Stripe Tax when you start selling in tax-sensitive jurisdictions.
Global SaaS that does not want to think about taxes: Paddle from the start.
E-commerce with broad demographics: Stripe as primary + PayPal as an option.
Marketplace payments: Stripe Connect is purpose-built for this. No real competitors at the same capability level.
High-ticket B2B SaaS with invoicing: Stripe Invoicing handles this well. Paddle also works for invoice-based billing.
What founders underestimate
Implementation time for subscriptions. Stripe's subscription billing is powerful but takes real engineering time to implement correctly. Handling subscription states (active, past due, cancelled, trialing), payment method updates, proration, and plan changes is not trivial. Budget at least two to three weeks of engineering time to do it properly.
Chargeback handling. Every payment processor has chargebacks. Stripe provides tools. Paddle handles them. PayPal has its own dispute resolution. How your processor handles chargebacks affects your fraud rate and your operational workload. Read the policies before you launch.
Enterprise customers and invoices. Enterprise customers often want to pay by invoice rather than by card. Stripe Invoicing and Paddle both handle this. Make sure your processor supports your customer's preferred payment method.
Technical implementation
Our custom software development team integrates all three of these processors regularly. Stripe integrations are the most common and the most complex when subscription logic is involved. Get in touch to discuss payment integration as part of a broader product build, or if you are migrating from one processor to another and need to handle the transition cleanly.