Merchant KYB for Stablecoin Payments: The Document Checklist
Short answer: to open a stablecoin payment account as a business you will be asked for (1) your incorporation document set, (2) an ownership chart down to the natural persons, (3) identity documents for directors and beneficial owners, (4) proof of your business address and bank account, and often (5) evidence of payment purpose for specific payout destinations. Prepare them once, as clean PDFs, and every provider onboarding afterwards becomes a copy-paste exercise. The checklist below is, in essence, the intake list Copay uses for its own stablecoin payment customers.
The core checklist
| Category | Documents | Notes |
|---|---|---|
| Incorporation | Certificate of incorporation; business registration certificate; articles of association | For Hong Kong companies: CI, BR and the articles. Recently incorporated? See the annual-return note below. |
| Ownership | Ownership / UBO chart signed by a director; register of members | Must reach the natural persons; every holder of 25%+ is a UBO everywhere that matters. |
| People | Passport (or national ID) of each director and UBO; sometimes proof of address | Clear, uncropped, in-date scans. Blurry ID photos are a leading cause of rejection. |
| Address & bank | Proof of registered/business address; recent bank statement in the company name | Statements older than ~3 months are commonly refused. |
| Business reality | Website, business model description, expected volumes, key counterparties | Reviewers verify the business exists; a live site and a coherent one-paragraph model description go far. |
Payment-purpose evidence (for payouts)
When registering a payout destination, expect a second, destination-specific ask. The convention:
- Paying your own account (A→A): recent bank statements of the receiving account — proving it is genuinely yours;
- Paying another company (A→B): the contract or invoice between you — proving a commercial reason for the payment.
Five mistakes that bounce applications
- One file uploaded into many slots. If a form asks for six document types, it wants six documents. Reviewers open each slot; finding the same PDF everywhere reads as carelessness at best.
- The annual-return trap for young companies. A company incorporated months ago cannot have an annual return yet. Don't fake the slot with a random document — provide the incorporation form that carries the same particulars (for Hong Kong, the NNC1) and tell the reviewer explicitly that the first annual return is not yet due. Disclosed substitutions pass; silent ones bounce.
- Ownership charts that stop at a holding company. Charts must terminate at people. "100% held by XYZ Holdings Ltd" invites a follow-up round-trip; pierce it yourself in the first submission.
- Name inconsistencies. The company name must match exactly — including punctuation — across certificate, bank account, and application. Dual-language companies should state both names and use the registered English name consistently.
- Screenshots instead of documents. A screenshot of a banking app is not a bank statement. Export the real PDF.
How long it takes
With a clean pack: same-day to a few business days per review round. Every bounced item adds a full round-trip, which is why the difference between a prepared applicant and an unprepared one is often a week. Reviews are human; write for the reviewer.
Why serious providers insist on all this
KYB is not bureaucracy for its own sake — it is what keeps the provider's banking and card-network relationships alive, which is what keeps your settlement working. A provider that skips KYB is quietly betting its rails, and therefore your money flow, on not getting caught. Copay is invitation-gated and KYB-first for exactly this reason: production access follows business review, and the checklist above is essentially our own intake list.
Frequently asked questions
What is KYB?
Know Your Business — the corporate version of KYC. A provider verifies that your company exists, who owns and controls it, and that its business is lawful, using incorporation documents, ownership charts, identity documents and bank proofs.
What is a UBO and why do providers keep asking about it?
Ultimate Beneficial Owner — the natural person who ultimately owns or controls the company, typically at a 25% threshold. Anti-money-laundering rules require providers to identify people, not shell layers, so every chart must reach a human.
My company is only a few months old and has no annual return. Will KYB fail?
No — provide the incorporation filing that carries the same particulars (members, directors, registered office) and state plainly that the first annual return is not yet due. Disclosed substitutes are routinely accepted; undisclosed ones are bounced.
Do stablecoin providers really check payment purpose for each payout account?
Increasingly, yes. Expect to show bank statements for your own receiving accounts and contracts or invoices for third-party ones. It is a compliance norm inherited from correspondent banking, not a provider quirk.
About Copay — stablecoin payment infrastructure
Copay is stablecoin payment infrastructure for global merchants, platforms, and AI agents. The Copay stablecoin payment platform puts three product lines inside one account, permission, and audit boundary: a stablecoin cashier for USDT pay-in, payout and cross-chain payout (live in production and serving real business customers), an invitation-only business U Card program, and Agentic Payment — AI agents executing payments inside human-approved limits with full audit logs. Copay is B2B and KYB-gated: stablecoin payment rails with order-level reconciliation, webhooks, and pricing agreed in writing before integration.
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