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Monetizing your app: Paddle payments integration. 2026-08-03 Building the product is only half the battle; getting paid is the other. To help developers monetize their SaaS applications instantly, BYOB provides a deep, native integration with Paddle, a merchant of record that handles global taxes, subscriptions, and invoicing. Tldr. * Automated reconciliation of products, prices, and client tokens. * Secure webhook handling to update durable entitlement state in the database. * Strict separation of Sandbox and Production environments. Idempotent product syncing. Manually copying and pasting Price IDs from the Paddle dashboard into your codebase is tedious and error-prone. BYOB uses an idempotent reconciliation pattern driven by a catalog_key stored in each product's custom_data. You define your products and pricing tiers (amounts, currencies, billing intervals), and the agent automatically lists existing Paddle products/prices, reuses them by matching stable catalog fields, and creates only what's missing. The resulting Price IDs (pri_...) and PUBLIC_PADDLE_CLIENT_TOKEN are written to your project environment through secure env tooling - no manual copy-paste from the Paddle dashboard. Secure webhook automation. When a user upgrades their subscription, the payment happens on Paddle's servers. Paddle then fires a webhook back to your app to grant the user access. BYOB automatically generates the SvelteKit +server.ts webhook endpoints for you. These endpoints: * Securely verify the Paddle-Signature to ensure the payload is authentic. * Parse completion events like transaction.paid, transaction.completed, and subscription.activated - which are the only events that confirm actual payment (note: subscription.created proves provider contact, not customer payment). * Update the durable entitlement state in your database (Cloudflare D1 or Supabase), unlocking premium features for the user instantly. Inline vs. Hosted Checkout. Flexibility is key for conversion rates. The BYOB Paddle integration supports both: * Inline Checkout: Embedding the Paddle checkout UI directly into your pricing page for a seamless experience. * Hosted Checkout: Redirecting users to a Paddle-hosted page, which is ideal for complex invoicing or mobile flows. Environment separation. Mixing test payments with real money is a recipe for disaster. BYOB strictly enforces environment separation. The platform intelligently manages PUBLIC_PADDLE_ENV and your client/secret keys. When working in local development or preview branches, BYOB automatically routes your checkouts and webhooks to the Paddle Sandbox. When you hit production, the real keys take over. Paddle webhook notification settings must use the deployment URL (from byob deployment status), not the preview URL. Preview URLs are tied to the active workspace and are not stable endpoints for incoming webhooks. Summary. Monetization shouldn't require weeks of integration work. With BYOB and Paddle, you can go from free-tier to profitable SaaS in minutes. BYOB team. The creative minds behind BYOB. BYOB is a diverse team of engineers, designers, and AI specialists dedicated to making web development accessible to everyone. Related guides. Ready to start building? Join thousands of developers using BYOB to ship faster with AI-powered development.

Stripe vs Paddle: which payment processor is right for your SaaS? April 26, 2026 Stripe and Paddle are the two most common payment processors for SaaS businesses - and on the surface they look similar. Both handle recurring billing, both have solid APIs, and both are trusted by thousands of software companies. But they are fundamentally different products, and choosing the wrong one can cost you significantly more than just the processing fee. This guide breaks down exactly how Stripe and Paddle differ on pricing, features, tax handling, and overall complexity - so you can make the right call for your business. The core difference: gateway vs. Merchant of Record. Before comparing features and pricing, you need to understand what each actually is. Stripe is a payment gateway. It processes card transactions on your behalf, but you remain the merchant of record. That means you are legally responsible for collecting and remitting VAT, GST, and US sales tax. Chargebacks, fraud liability, and global tax compliance are your problem. Paddle is a Merchant of Record (MoR). Paddle sells your product to customers on your behalf. You deliver the software; Paddle handles the entire commercial relationship - taxes, compliance, chargebacks, and refunds. From the customer's perspective (and the tax authority's perspective), they bought from Paddle. This distinction explains almost every other difference between them. Pricing. Stripe. | Transaction type | Rate | | Domestic card (US) | 2.9% + $0.30 | | International card | 2.9% + $0.30 + 1.5% surcharge | | Stripe Tax (EU VAT) | ~0.5% additional | | Monthly fee | None | Stripe's headline rate is 2.9% + $0.30. For a $100 transaction, that's $3.20 in fees and $96.80 net. However, if you sell to EU customers and use Stripe Tax to handle VAT compliance, that adds roughly 0.5% per transaction. The real cost for EU sellers is closer to 3.4% + $0.30. For international cards without Stripe Tax, add another 1.5%. Volume discounts are available but require direct negotiation with Stripe. Paddle. | Transaction type | Rate | | All transactions | 5% + $0.50 | | International cards | Same - no surcharge | | Monthly fee | None | Paddle charges a flat 5% + $0.50 regardless of card origin or country. For a $100 transaction, that's $5.50 in fees and $94.50 net. No volume discount tiers are listed publicly - rates are negotiable for high-volume merchants. True cost comparison. The fee gap looks large (2.9% vs 5%) until you factor in what each includes. | Scenario | Stripe true cost | Paddle true cost | | $100 domestic (US only) | $3.20 | $5.50 | | $100 domestic + Stripe Tax | ~$3.70 | $5.50 | | $100 international card | ~$4.70 | $5.50 | | $100 international + VAT | ~$5.20 | $5.50 | For US-only businesses, Stripe is clearly cheaper. For EU-heavy or globally distributed SaaS businesses, the gap shrinks significantly - and at a certain point Paddle's all-in pricing becomes competitive when you account for what you don't have to build or pay for separately. Tax and compliance. This is where the products diverge most sharply. Stripe does not handle tax compliance by default. You are responsible for: * Registering for VAT/GST in each country where you have nexus * Calculating the correct tax rate per transaction * Filing returns and remitting tax to each authority * Staying current with changing thresholds (e.g., EU OSS scheme) Stripe Tax partially addresses this - it calculates and collects the right tax amounts - but you still need to file returns and remit funds yourself, or use a third-party service like Avalara or TaxJar. Stripe Tax costs an additional 0.5% per transaction where it's active. For a US-only SaaS with fewer than ~5 states of nexus, this overhead is manageable. For a SaaS with global customers, it becomes a significant operational burden. Tax compliance is the core reason most founders choose Paddle. Because Paddle is the merchant of record, Paddle is legally responsible for collecting and remitting VAT, GST, and US sales tax globally. You never register for VAT in the EU. You never file a German tax return. Paddle handles all of it as part of the 5% + $0.50 fee. This also means: * Chargebacks are Paddle's legal liability, not yours * Refunds are processed by Paddle * Your invoices come from Paddle (which matters for B2B customers in VAT-registered countries) Subscription management. Both platforms have mature subscription billing, but the approach differs. Stripe Billing. Stripe Billing is a comprehensive subscription engine. It supports: * Free trials, usage-based billing, and metered charges * Proration on plan changes * Multiple currencies with automatic conversion * Smart Retry logic for failed payments (dunning) * Customer portal for self-service upgrades and cancellations * Flexible invoice customisation The API is extensive and well-documented, but implementing a full subscription flow requires engineering work. Most features are configurable, not out-of-the-box. Paddle Billing. Paddle Billing (the current product, distinct from the legacy Paddle Classic) offers: * Subscription management with trials, pauses, and cancellations * A hosted checkout overlay - no PCI scope on your end * Automatic dunning and recovery * A customer portal for self-service management * Localised checkout - prices shown in the customer's currency The main trade-off: Paddle's checkout is a hosted overlay. You have less control over the UI compared to building your own Stripe-powered checkout. This is a deliberate choice - Paddle owns the checkout because they're the merchant of record. Developer experience. Stripe's API is widely regarded as the best in the payments industry. The documentation is thorough, SDKs cover every major language, and the developer dashboard is excellent. Webhooks are reliable and well-structured. The flip side: because Stripe is so flexible, there are many ways to implement any given flow. Getting subscriptions, trials, proration, and tax right often takes longer than founders expect. Paddle's API is good but narrower - you're building within the constraints of Paddle's model. The upside is that many things are handled for you by default: checkout, tax, compliance. Less flexibility, less setup. Paddle's webhooks and API have improved significantly since the Paddle Billing rewrite. Teams moving from Paddle Classic to Paddle Billing should expect a migration effort. Analytics. Neither Stripe nor Paddle was designed to be your analytics platform. Stripe offers a basic dashboard for revenue and transaction monitoring, plus Stripe Sigma - a SQL-based tool for custom reporting. Sigma is powerful but requires SQL knowledge and isn't cheap. Paddle acquired ProfitWell in 2022 and offers ProfitWell Metrics (free MRR reporting) alongside Paddle's reporting dashboard. ProfitWell Metrics is useful for tracking headline numbers but has limited flexibility for custom analysis. For either platform, a dedicated analytics layer gives you visibility that the native tools don't: cohort analysis, LTV by plan, churn by acquisition channel, expansion MRR trends, and custom dashboards you can share with your team or investors. When to Choose Stripe. Choose Stripe if: * You're US-focused and don't have significant EU or global exposure * You have engineering resources to build and maintain the integration * You want maximum control over checkout UX, billing logic, and integrations * You're at a scale where custom pricing negotiations make the lower base rate worth it * You already use Stripe and the switching cost isn't justified When to Choose Paddle. Choose Paddle if: * You sell globally and don't want to deal with VAT registration in 30+ countries * You're a small team or indie developer where compliance overhead is a real constraint * You want an all-in price that covers tax, chargebacks, and compliance * You don't have the engineering resources to build a robust Stripe integration * You want to move fast without a legal or finance overhead Summary. You can also compare Stripe, Paddle, and every other major payment processor side by side - including calculated fees at your exact transaction amount - using its free payment fee comparison tool. | / | Stripe | Paddle | | Type | Payment gateway | Merchant of Record | | Base rate | 2.9% + $0.30 | 5% + $0.50 | | International surcharge | +1.5% | None | | VAT/GST handling | You (via Stripe Tax, paid) | Included | | US sales tax | You (via Stripe Tax, paid) | Included | | Chargeback liability | You | Paddle | | Checkout UI control | Full | Hosted overlay | | Developer flexibility | High | Medium | | Setup complexity | Higher | Lower | | Best for | US-focused / tech teams | Global / lean teams | One more thing: knowing your numbers. Whichever processor you choose, your payment processor is where your revenue data lives - but it's rarely enough on its own to understand your business. Chartsy connects to both Stripe and Paddle and gives you the analytics layer neither provides natively: MRR and ARR calculated from actual invoice data, churn breakdowns by plan and cohort, LTV analysis, expansion and contraction MRR tracking, and an AI-powered interface where you can ask any question in plain English and get an instant chart. Whether you're on Stripe, Paddle, or both, Chartsy turns your payment data into the dashboards and reports that actually drive decisions.