Web Payment Gateway Integration Guide — A 2026 Walkthrough
How to wire a payment gateway to your website in 2026 — Stripe vs Square vs PayPal vs QuickBooks Payments, integration patterns, security, and the fees nobody mentions upfront.
Full guide publishing soon. This page reserves the topic outline; the deep guide is in production.
A practical walkthrough for adding a payment gateway to a local-business website in 2026 — which processor fits which kind of business, what the integration actually involves, and the fee schedules nobody mentions upfront.
What this guide will cover
- The four processors most local businesses actually use — Stripe, Square, PayPal, QuickBooks Payments. Per-transaction fees, monthly fees, hidden costs.
- Integration patterns — Stripe Checkout vs Payment Links vs Stripe Elements; Square’s hosted checkout; PayPal Buttons; what each looks like in practice and which fits your use case.
- PCI compliance — what you actually need to worry about — most local-business gateways handle this for you; here’s what’s still your responsibility.
- Common use cases — deposit collection, booking fees, subscription billing, invoice payments. Which gateway pattern fits each.
- Why “build your own checkout” usually doesn’t work — the engineering + PCI + chargeback-handling overhead nobody quotes.
- Migration paths — moving from PayPal to Stripe, or from PayPal to Square, in 2026 — what survives, what doesn’t.
What we do vs what we don’t
We don’t build custom payment systems or design checkout flows from scratch. We DO wire existing gateways (Stripe, Square, PayPal, QuickBooks Payments) into your website forms, booking pages, and chatbot flows. See All Integrations for the integration work — payment processors are bundled into the e-commerce category.
For complex payment architectures (marketplaces with split payments, multi-party transfers, custom subscription logic), ask Phil for a referral.