Payments engineering,
explained plainly

No fluff. Real write-ups from the people building PayLoop and the developers using it.

Blog post  — SaaS embedded payments growth forecast
Strategy

Why Every SaaS Platform Will Embed Payments by 2028

The redirect-to-checkout model made sense when SaaS was young. The economics forcing the shift to embedded are now too significant to ignore.

April 15, 2026  ·  9 min read
Blog post  — Payment fee waterfall diagram
Revenue

The Hidden Revenue in Payment Processing Fees

You're facilitating payments. Someone is making money on that spread. It doesn't have to be your processor.

April 8, 2026  ·  10 min read
Blog post
Engineering

Why your SaaS subscription churn is higher than your dunning reports show

Card decline rates have a hidden layer most billing tools don't surface. Here's what the data actually looks like and what to do about it.

April 18, 2026  ·  8 min read
Blog post
Compliance

PCI DSS 4.0 for SaaS founders: what actually changed and what you need to do

The 4.0 update has 64 new requirements. Most of them don't apply to you. A practical breakdown of what does.

April 9, 2026  ·  11 min read
Blog post  — PCI scope reduction diagram
Compliance

PCI Compliance Without Slowing Down Your Engineering Team

The scope problem is the real problem. Here's how to shrink it before it becomes a quarterly tax on your engineering bandwidth.

March 28, 2026  ·  11 min read
Blog post  — Infrastructure team structure and automation stack
Engineering

How We Process $2B Annually With a 12-Person Infrastructure Team

Team size doesn't determine transaction capacity. Architecture does. A walkthrough of the routing, settlement, and reconciliation systems that make it work.

March 20, 2026  ·  12 min read
Blog post
Product

Split payments for marketplace SaaS: the architecture decisions that trip people up

Moving money between multiple parties sounds simple until you hit the edge cases. We document the ones we see most often.

March 31, 2026  ·  9 min read
Blog post  — Subscription billing state machine
Engineering

Subscription Billing Edge Cases That Break Most Payment Systems

Proration math, mid-cycle upgrades, dunning cascades, failed card recovery — here's where most billing engines fall apart and why.

March 12, 2026  ·  10 min read
Blog post  — Multi-currency transaction flow diagram
Engineering

The Multi-Currency Problem Nobody Solves Well

Supporting 180 currencies sounds like a configuration option. The FX latency, settlement mismatches, and reporting gaps are considerably messier.

March 5, 2026  ·  9 min read
Blog post  — Marketplace split payment architecture diagram
Architecture

Split Payments for Marketplaces — Architecture Decisions That Matter

The decisions you make before you build determine whether your payment layer scales or becomes a maintenance problem two years later.

February 24, 2026  ·  10 min read
Blog post  — Payment migration timeline phases
Operations

Why Payment Migration Projects Take Twice as Long as Expected

Token portability, subscription state migration, and historical data gaps — the three categories of problems that every migration surfaces.

February 14, 2026  ·  11 min read