---
title: KYB Documents
description: Document requirements for business KYB verification — formation docs, ownership proof, UBO identification, and proof of address.
navigation:
  order: 10
---

## Summary

KYB (Know Your Business) verification requires document-level proof beyond the core business fields BlindPay collects at customer creation. You must submit corporate formation documents, an ownership structure document identifying all UBOs, proof of business address, and government ID plus proof of residence for each UBO. Companies in higher-risk sectors may face enhanced due diligence.

## Required business fields

The core business and tax fields collected during customer creation (legal name, tax ID, formation date, registered address, website, UBOs) are documented in [Customers — Required fields](/docs/essentials/customers#required-fields). This page covers only the supporting **documents** KYB uniquely requires.

::c-alert{icon="circle-info"}
`tax_id` must contain the beneficiary's local tax ID based on their country of residence (e.g. CPF for Brazil). For **US residents**, this field must always be the **SSN**.
::

## Corporate formation documents

- **Articles of Organization** (or local equivalent) — full document required (all pages).
- **Certificate of Incorporation** (or equivalent) — full document required (all pages).

::c-alert{icon="triangle-exclamation"}
**Important**: Submitting only the first page is not sufficient. All pages of each document must be included.
::

## Ownership structure documentation

A **Share Register** or an official legal document clearly showing the full Beneficial Ownership structure is required. This document must clearly identify:

- All shareholders
- Ownership percentages
- Ultimate Beneficial Owners (UBOs), including indirect ownership where applicable

::c-alert{icon="circle-info"}
**Note**: BlindPay may request an ownership chart if the structure is complex.
::

## Proof of business address

Accepted documents include a utility bill, lease agreement, or bank statement. The document must:

- Be dated within the last **90 days**
- Clearly display the company's **legal entity name** and **registered address**
- Be complete and fully visible

For the full list of accepted documents and submission guidelines, see the [Proof of Address](/knowledge-base/guides/proof-of-address) guide.

## UBO documentation

For each Ultimate Beneficial Owner (UBO), BlindPay requires government-issued identification and proof of residence.

### Government-issued identification

One of the following is accepted: Driver's License, National ID, Residence Permit, or Passport.

Requirements:

- Within its official validity period and not issued more than **10 years** prior to submission
- Clear, complete, and fully visible
- All four corners visible where applicable
- Information must match the ownership documentation provided

### Proof of residence

- Dated within the last **90 days**
- Clearly shows the UBO's **full name** and **residential address**
- Issued by a recognized institution (e.g., utility bill, bank statement, or official government correspondence)

## Virtual Account additional information

Virtual Account requests undergo a separate evaluation with their own documentation. See the [Virtual Accounts](/knowledge-base/guides/virtual-account-best-practices) guide for industry type, nature of business, purpose of account, and source of funds/wealth requirements.

## Enhanced due diligence sectors

::c-alert{icon="triangle-exclamation" variant="warning"}
**Enhanced due diligence**: Additional documentation may be requested for companies operating in the sectors listed below.
::

| Sector | Examples |
| --- | --- |
| **Banking & Lending** | Banks, credit unions, and lending institutions |
| **Securities & Trading** | Securities brokers, forex dealers, and trading platforms |
| **Money Services** | Money services businesses (MSBs) and remittance companies |
| **Fintech** | Payments, digital wallets, and acquirers |
| **Currency Exchange** | Currency exchange houses |
| **Digital Assets** | Cryptocurrency exchanges, virtual asset custodians, ICOs, STOs, token fundraising activities |
| **DeFi** | DeFi platforms, staking and lending protocols |
| **High-Value Goods** | Jewelry, art, antiques, luxury cars, yachts, or aircraft dealers |
| **Real Estate** | Real estate developers and real estate transactions |
| **Natural Resources** | Oil, gas, and mining companies (including rare minerals) |
| **Regulated Industries** | Chemicals and pharmaceuticals (dual-use), private security companies |
| **Non-Profits** | NGOs, charities, and foundations |
| **High-Risk Jurisdictions** | Companies operating in FATF high-risk jurisdictions and offshore companies (e.g., Cayman Islands, Panama, Monaco, among others) |

## Related

- [Customers](/docs/essentials/customers) · [Virtual Accounts](/knowledge-base/guides/virtual-account-best-practices)
- [Proof of Address](/knowledge-base/guides/proof-of-address) · [Source of Funds & Source of Wealth](/knowledge-base/guides/source-of-funds)

::c-support
::