Architecting Multi-Tenant Billing Engines: A Database Schema Guide

<p>If your SaaS charges customers and also plugs into those customers' billing stack, you do not have one billing problem. You have two.</p> <p>You need to bill your own customer

<p>Multi-tenancy is the decision that quietly shapes your entire SaaS backend. Get it right and you scale smoothly to thousands of accounts. Get it wrong and you're rewriting your

<p>Building a B2B SaaS platform for transport companies, I faced a critical architectural decision: separate database per tenant or shared database with logical isolation?</p>

<p>When I built <a href="https://github.com/rmbell09-lang/billingwatch" rel="noopener noreferrer">BillingWatch</a>, I designed it for a single Stripe account. Then people started

<p><strong>Most billing code has the same bug hiding in it</strong>: it stores the account balance as a number and mutates it — balance += amount. It works fine, right up until a

<p><strong>Subtitle: How to model a secure, escrow-based marketplace for emerging economies using Prisma and PostgreSQL.<br /> Schema.</strong></p> <p>In my previous article on