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Payment Integrations

We build secure, PCI-compliant payment gateways capable of handling global currencies, complex tax logic, and recurring billing.

Answer summary

BuildDigital integrates Stripe, Stripe Connect, Paddle, Lemon Squeezy, and PayPal into custom checkout flows, subscription engines, and marketplace payouts — with idempotent webhook handlers, automated dunning, and global tax compliance (Stripe Tax, Paddle Tax). Every payment integration is PCI DSS SAQ-A compliant by design (no card data touches our servers) and reconciled against provider truth on scheduled jobs.

The Lifeline of Your Business

A flawed payment integration results in lost revenue, frustrated customers, and devastating compliance fines. We engineer frictionless checkout experiences that maximize conversion rates while strictly adhering to global financial regulations.

Financial Engineering Capabilities

We go far beyond basic "Buy Now" buttons, building complex financial architectures.

  • ✓Stripe Ecosystem Mastery: We implement custom Stripe Elements, Stripe Connect for multi-vendor marketplaces (routing payouts automatically), and Stripe Billing for metered SaaS usage.
  • ✓Global Tax & Compliance: Integrating automated tax calculation APIs (TaxJar, Stripe Tax) to dynamically handle global VAT, GST, and state taxes based on IP routing.
  • ✓Idempotency & Webhooks: We engineer asynchronous webhook processors with strict idempotency keys, guaranteeing that a user is never double-charged, even under severe network instability.

Frequently Asked Questions

Which payment processor should I integrate?

Stripe is our default for most products — best-in-class API, global reach, mature docs. Paddle or Lemon Squeezy for digital products where you want them to act as merchant of record and handle global VAT/sales tax. PayPal as a secondary option for consumer checkout where users demand it. For marketplaces, Stripe Connect is nearly unavoidable.

How do you handle Stripe webhook reliability?

Every webhook handler is idempotent (checks event ID before processing), signed-verified, and writes to an events table before mutating business state. Failed events retry with exponential backoff and page us on repeated failure. A nightly reconciliation job compares our subscription state against Stripe's source of truth.

Are your payment integrations PCI DSS compliant?

Yes — SAQ-A compliant by design. Card data never touches our servers; we use Stripe Elements or Checkout so the card fields are hosted by Stripe. Tokenized customer references are what we store. This keeps compliance scope minimal and audit costs low.

Ready to build your payment integrations?

Backed by 3+ years of proven delivery, we deliver clean code, modern UI UX design, and on-time market-ready solutions. Let's discuss your custom enterprise architecture today.

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