Attestation
In most cases, a control person can attest to the ownership structure directly during the KYB flow — no separate ownership documents are needed. This is the fastest path to onboarding.When documents are required
If attestation is not available or additional verification is needed, ownership documents must be submitted. These documents should:- Be dated and signed by a verified control person, lawyer, or third-party CPA
- Account for 100% of ownership
- Clearly identify the entity
- Include supporting documentation for any subsidiary entities
Capitalization tables from well-known equity management platforms (e.g. Carta, AngelList, Securitize) do not require a signature.
Accepted documents by entity type
Sole Proprietorship
Sole Proprietorship
- Business license
- Trade name registration
- Schedule C tax filing
Partnership
Partnership
- Partnership agreement
- Certificate of partnership
- DBA registration
- K-1 forms
- Schedule of partners
Corporation
Corporation
- Articles of incorporation
- Stock certificates
- Shareholder ledger
- Capitalization table
- Shareholders’ agreement
- Board minutes
- SEC filings (if applicable)
LLC
LLC
- Articles of organization
- Operating agreement
- Membership certificates
- Membership ledger
- K-1 forms
- IRS 147(c) EIN verification letter
Nonprofit / Foundation
Nonprofit / Foundation
- Articles of incorporation
- Bylaws
- Board minutes
- IRS determination letter
- Annual reports
DAO
DAO
- Membership agreements
- Voting records
- White papers
- Governance frameworks
Trust
Trust
- Trust deed
- Certificate of trust
- Notarized trustee affidavit
Cooperative
Cooperative
- Articles of incorporation
- Membership agreements
- Membership ledger
- Meeting minutes
- Share certificates
Alternative documentation
When standard documents are not available, the following may be accepted:- Ownership org chart
- Signed attestation letter from a legal professional
- Capitalization table with appropriate signatures