EIN TAX ID
MASTER GUIDE
A comprehensive resource for global business. Learn how to obtain and use your US Tax ID without the headache.

Understand the EIN Purpose
An Employer Identification Number (EIN) is essential for any new business. You need it to hire employees, open a US business bank account (like Mercury or Relay), and file your federal tax returns. Think of it as a Social Security Number for your business.
Why do I need an EIN?Who Needs an EIN?
Whether you are a Sole Proprietor, a Corporation, or an LLC (even a single-member LLC), you generally require an EIN. Partnerships and Non-profit organizations must also obtain one to operate legally in the US.
Check My EligibilityGather Required Information
Before you apply, have these ready: Your Business Legal Name, Physical Business Address, Entity Type, and the details of the 'Responsible Party'. If you don't have an SSN or ITIN, don't worry—special rules apply for international founders.
View Documentation ListChoose Your Application Method
Online application is the fastest for those with an SSN/ITIN. However, for international founders, we recommend the 'Fax Form SS-4' or 'Mail' methods. If you are outside the US, a telephone application is also an option.
Start Application ProcessUsage & Compliance
Once issued, use your EIN for employer responsibilities and business tax filings. Remember to avoid using personal info where your EIN should be used. Ensure you follow address change rules to keep the IRS updated.
Learn Compliance RulesWhere EIN is Used
- • US Federal Taxes & Filings
- • Opening US Business Bank Accounts
- • Business License Applications
- • Professional Vendor Applications
Non-Resident Support
Global founders often struggle with the IRS. Our partner specializes in securing EINs for non-residents without requiring an SSN, making your US entry seamless.
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EIN Tax ID?
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