Skip to main content
  • Using a Company’s EIN (Tax ID)
  • Add an EIN to Your KYB workflow- Verify TIN with iDenfy KYB
  • Understanding TIN and EIN
  • What is a TIN?- What is an EIN?- Entities That Require an EIN
  • Entities That May Not Require an EIN
  • Why EIN Verification Matters
EIN verification is only available for businesses registered in the United States.
  • If a non-U.S. company attempts verification, the system will display:“EIN verification is available for US companies only.”

​
![](/img/guides/plugins/servlet/confluence/placeholder/error “Cannot invoke “String.indexOf(int)” because “href” is null”) Using a Company’s EIN (Tax ID)

​
Add an EIN to Your KYB workflow

When creating a custom KYB workflow, you can request an EIN in various sections:
  • Company Information
  • Sole Proprietorship Details
  • Ownership Structure
Once configured, this field will be mandatory for U.S. companies. After setup, you can create a verification session:
  • Via the dashboard
  • Through an API call

​
Verify TIN with iDenfy KYB

Direct Input by the Client - During the KYB verification process, clients can add their EIN directly in the highlighted field. ![](/img/guides/plugins/servlet/confluence/placeholder/error “Cannot invoke “String.indexOf(int)” because “href” is null”) Manual Input by You - If a company provides additional information separately, you can manually upload their EIN (with consent).
  1. Edit TIN for Individuals in the Ownership Structure
  2. Edit TIN for individuals
  3. Select the individual for whom to add TIN
LimitationEIN / TIN does not work as a standalone feature, and can not be used outside the KYB verificaiton
image-20250904-105312.png
image-20250904-120551.png

​
Understanding TIN and EIN

​
What is a TIN?

A Tax Identification Number (TIN) is a unique number used by tax authorities to identify individuals and entities for tax purposes. In the United States, there are different types of TINs based on who is paying taxes:
  • SSN (Social Security Number) – For U.S. citizens and residents who pay taxes as individuals.
  • ITIN (Individual Taxpayer Identification Number) – For non-U.S. residents who are not eligible for an SSN but still need to pay U.S. taxes.
  • EIN (Employer Identification Number) – For companies, organizations, and other entities that need to pay taxes or hire employees.

​
What is an EIN?

An Employer Identification Number (EIN) is a federal tax identification number assigned by the IRS to businesses operating in the United States. It is closely tied to the TIN and is essential for tax reporting, banking, and business operations. Key Facts:
  • Required for most businesses, especially those with employees.
  • Used by corporations, partnerships, LLCs, nonprofits, trusts, estates, and other legal entities.
  • Sole proprietors without employees may not need an EIN but are strongly encouraged to get one.

​
Entities That Require an EIN

  • All corporations and partnerships
  • LLCs with employees or multiple members
  • Sole proprietors with employees
  • Nonprofits, trusts, and estates
  • Certain other registered entities

​
Entities That May Not Require an EIN

  • Sole proprietors with no employees and not taxed as a corporation
  • LLCs without employees and not taxed as a corporation

​
Why EIN Verification Matters

An EIN is essential for businesses in the U.S. that are legally required to pay taxes. Even in cases where a Social Security Number (SSN) could be used, obtaining an EIN is highly recommended because:
  • Banking: Most U.S. banks require an EIN to open a business account.
  • Hiring: Mandatory for hiring employees.
  • Tax Filing: Required for filing business taxes.
  • Security: Separates personal and business finances for sole proprietors.
  • Growth: Simplifies future scaling and compliance.
Without an EIN, businesses may face unnecessary complications when expanding or managing operations.