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Insights from the field

Practical articles on payments and billing: Stripe, webhooks, failed payments, duplicate charges and reconciliation, from an engineer who builds them.

The Card Fee a Refund Doesn’t Give Back

I tracked a $10 refund, cent by cent.

5 min read

The Life of One Subscription

A promise, three bills, one declined card, and a cancel that did not cut anyone off.

7 min read

The Price That Lived in Two Places

The page said 30 dollars. The card was charged 35. Nobody lied.

8 min read

The Life of 30 Dollars

How one ordinary price stays exactly the same, from the first keystroke to the last receipt

6 min read

What Happens After You Press Pay

It takes one second. Most of the trouble starts after that.

7 min read