Portmint Lighthouse
Practical · 7 lessons · $129

How Money Moves Online

Welcome aboard

Ahoy — Pip here, your lighthouse keeper. When you buy something online, money seems to teleport: you tap a button, and a moment later the order is yours. But behind that calm screen, a whole crew of players passes your payment hand to hand, in under two seconds, across the world.

This course pulls back the curtain. We'll follow your money from the card in your pocket to the seller's bank account — meeting the processors, the fees, the safety checks, and the dispute system called a chargeback. No finance degree needed. Each stop is one plain idea, one everyday picture, then onward.

By the end you'll understand exactly what happens when you check out, where the money goes, and how to keep yours safe. Let's cast off. 🔦

  1. What a Payment Card Really Is Free previewA debit or credit card isn't money — it's a key and a promise. Learn what the numbers mean and who's really behind the plastic.
  2. The Cast of Characters 🔒Five players move every online payment — you, the merchant, two banks, and the network between them. Meet the whole crew in plain terms.
  3. What a Processor Does 🔒The payment processor is the busy translator between a store and the banks. Learn what it does in the two seconds after you click "Pay.
  4. The Checkout Journey, Step by Step 🔒Follow one $40 purchase through both phases — the two-second hold called authorization, and the slower settlement when the money truly moves.
  5. Where the Fees Go 🔒Every card sale is shaved by three small fees — interchange, assessment, and the processor's markup. See who takes what, and why.
  6. Chargebacks and Disputes 🔒A chargeback is the card system's emergency undo button. Learn how it runs backward through the crew, how it differs from a refund, and why merchants both rely on it and fear it.
  7. Staying Safe With Your Money 🔒Simple, durable habits that protect your money online — from spotting a secure checkout to choosing the safest way to pay.

What you get

  • 📚
    7 plain-English lessons, taught by Pip — no jargon, no prior tech knowledge needed.
  • A quick quiz after every lesson, so what you learn actually sticks — and your progress saves as you go.
  • 🎓
    A verifiable Portmint Certificate when you finish — reviewed by a real person, and worth listing on your résumé and LinkedIn.
  • ♾️
    Lifetime access, yours for good — learn at your own pace, revisit anytime.
  • 🐙
    Ask Pip anything as you learn — he's right here on the page.
  • 💚
    Free for Portmint employees — just sign in with your Portmint account.

Start free — unlock the rest when you're ready

The first 1 lesson is a free preview. Then $129 unlocks all 7 lessons plus the certificate — yours for good, no subscription.

Start the free preview →

🎓 Capstone — build it, share it, get certified

Finished the lessons? Prove it. Build a one-page "Checkout Map" that traces a single real online purchase from your tap to the merchant's bank, labeling every player, fee, and safety checkpoint along the way that uses what you learned here, then share it publicly and thank Portmint for the education, and email it to capstone@portmint.net. A real person on the Portmint team reviews every submission — pass, and you earn a verifiable Portmint Certificate worth listing on your résumé and LinkedIn. (Optional, but it's how a course becomes something real.)

Submit my capstone →