A curated starting point if you're building or auditing a payments stack and don't know where to begin.
The Payments Stack Reading List: Compliance, Gateways & Checkout, in One Place
A curated roundup of our deep-dive guides on payment gateways, compliance, and checkout — organized by the order you'd actually need them in.
If you're new to building a payments stack — or auditing one you inherited — it's easy to end up reading about compliance before you've even picked a gateway, or optimizing checkout copy before fixing a broken retry flow. Here's a roundup of our guides, organized in the order we'd actually recommend working through them.
011. Start with gateway selection
Your choice of gateway determines your integration model, which in turn determines how much PCI scope you're carrying. Compare options head-to-head before committing:
- Stripe vs Razorpay: A Real Comparison for Indian Ecommerce Brands
- Razorpay vs Cashfree vs PayU: Which Indian Payment Gateway is Actually Better?
- Paddle vs Stripe for SaaS: When the Merchant of Record Model Makes Sense
022. Scope your compliance work
Once you know your integration model, figure out what you actually owe in terms of PCI compliance — this varies a lot depending on whether you're using a hosted checkout, an embedded iframe, or handling card data directly:
033. Fix checkout before you optimize marketing
Cart abandonment averages around 70% globally, and a meaningful share of that is checkout friction, not product-market fit. This is usually higher-leverage to fix than acquisition spend:
044. Handle recurring billing separately
If you run subscriptions, recurring billing has its own failure modes — involuntary churn from failed card renewals, mandate approval friction on UPI AutoPay — that deserve a dedicated pass rather than being bolted onto general checkout work:
- Why Subscribers Leave Even When They Don't Want To — And How to Fix It
- UPI AutoPay for Subscriptions: Complete Setup Guide for Indian SaaS & D2C
055. Don't forget cross-border, if it applies
If any part of your customer base pays from outside your home market, cross-border fees and settlement mechanics deserve their own line item in your gateway evaluation:
That's the full stack, roughly in the order most teams actually need it.
Frequently asked questions
Gateway comparison first (to understand what your integration model will look like), then the PCI DSS guide (to scope compliance work based on that integration model), then checkout optimization, then recurring billing if you run subscriptions.