Tax ID Validation at Checkout
Building a mental model for Stripe payments

Building a mental model for Stripe payments

2/19/2026

What this post added

This post introduces a mental model for understanding Stripe payments by framing the PaymentIntent lifecycle as a state machine. It details the key stages from checkout and tokenization to authorization, capture, and settlement. It also highlights the critical role of webhooks in synchronizing systems with asynchronous payment state changes.

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