Question 1

What's the difference between Stripe Checkout and Stripe Elements?

Accepted Answer

Checkout: Pre-built hosted payment page, fastest integration (2-3 days), handles SCA/3DS automatically, no custom styling. Elements: Low-level UI components for custom checkout forms, full control over layout/branding, more integration time (1-2 weeks), requires manual SCA/3DS handling. Use Checkout for rapid MVP; use Elements for branded, custom payment flows.

Question 2

How do webhooks ensure payment security and reliability?

Accepted Answer

Webhooks are asynchronous, server-side payment confirmations independent of client-side callbacks. They're essential because clients can be interrupted (page close, network failure). Always verify webhook signatures using Stripe's public key to prevent spoofing. Webhook handlers are idempotent, process same event multiple times safely. Use webhooks as the source of truth, never client-side confirmations alone.

Question 3

What are idempotency keys and why do they matter?

Accepted Answer

Idempotency keys (unique request IDs) allow safe retry logic: if a network timeout occurs mid-request, retry with the same key and Stripe returns the cached result instead of creating duplicate charges. Format: UUID v4 or similar. Essential for robust payment systems, prevents double-charging on network failures. Include idempotency keys in all Stripe API calls that create resources.

Question 4

How does Stripe Connect work for marketplaces and why use it?

Accepted Answer

Stripe Connect lets platforms split revenue between platform and sellers: platform receives payments, then transfers funds to seller Connected Accounts. Automates payout scheduling, holds, and compliance. Alternatives (collecting seller bank details, manual payouts) are error-prone and don't scale. Use Stripe Connect for any marketplace, creator platform, or on-demand service needing seller payouts.

Question 5

What's the difference between one-time payments, subscriptions, and recurring invoices?

Accepted Answer

One-time: single charge, customer receives product/service once. Subscriptions (Stripe Billing): recurring charges at fixed intervals, auto-retry on failure (dunning), flexible prorations on plan changes. Invoicing: send invoice to customer, they pay on-demand (B2B, not automated). Use subscriptions for SaaS; use invoicing for client contracts.

Question 6

How do dunning and retry logic prevent subscription churn?

Accepted Answer

Dunning: automated payment retry when subscription renewal fails (e.g., expired card). Stripe Billing auto-retries over 3-4 days with exponential backoff. Can email customer and attempt alternative payment methods. Recovers ~40-60% of failed charges vs. ~5% manual. Configure retry schedules in Stripe Billing dashboard, more aggressive for high-value customers.

Question 7

What's the difference between Tax and Radar, and when do I use each?

Accepted Answer

Tax: automatically calculate VAT/GST/sales tax for B2C transactions (EU, UK, AU, CA rules built-in). Radar: AI/rule-based fraud detection that flags risky transactions. Both are optional but essential: Tax for GDPR/compliance (automatic VAT invoice line-items); Radar for chargeback prevention (can decline/flag before processing).

Regione	Livello base	Mid	Livello esperto
USA	$130k	$175k	$235k
UK	£85k	£115k	£155k
EU	€90k	€125k	€170k
CANADA	C$145k	C$195k	C$260k

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