How to set up SellStein Payments

SellStein Payments lets you take cards directly through us instead of plugging in a third-party processor. Same dashboard, same checkout, lower effective rate at scale, and one underwriting team you can call.

Where to start

Open Settings → Payments → SellStein Payments and click Apply. The form lives at /sp/apply. If you already have a SellStein account, your business name, address, and country are pre-filled. You finish the rest in about eight minutes.

What you need ready

• A government ID for the business owner (passport, driver's licence, or national ID. Front and back if it's a card)
• Your business registration document (LLC certificate, GmbH Handelsregister extract, sole-trader equivalent, etc.)
• A bank account in the business's name where payouts will land. IBAN for EU, routing + account for US, sort code + account for UK
• A clear idea of your average ticket size, monthly volume, and what you sell. Don't guess. Pull last quarter's numbers from your current processor

Sandbox vs live

Every account starts in sandbox. You can run test cards (4111 1111 1111 1111, any future expiry, any CVC) immediately. Real money flips on after underwriting clears. Usually 1-2 business days for low-risk merchants, up to 5 days if we need extra documents for higher-risk verticals (supplements, vapes, CBD, etc.).

What slows things down

The two things that send applications back for more info: a registered business address that doesn't match the bank statement, and a vague website description. Be specific. "Sells handmade leather wallets to consumers in DE/AT/CH, average order €85" is approved fast. "Online shop" is not.

After you're approved

You'll get an email with your live MID, and the processor switches over inside the dashboard. Existing checkout flows pick it up automatically. No code changes. Your payout schedule defaults to T+2; we can move you to T+1 or T+0 once we have 30 days of clean processing history.