State guidesEIN National Filing
Applying for an EIN in Ohio
The application, your business details, and the state registrations to check.
GUIDES FOR YOUR BUSINESSREAD & REFERENCE
Before you start, gather your entity and responsible party information. This guide separates the federal EIN application from state registrations and other business paperwork.
Why Choose Ohio for Your Business?
Business Advantages
- 7th largest state economy ($788 billion GDP)
- No state capital stock tax or franchise tax
- Within 600 miles of 60% of U.S. population
- 21 Fortune 500 company headquarters
Economic Environment
- Manufacturing leader with advanced capabilities
- Major logistics and distribution hub
- Skilled workforce from excellent universities
- Low cost of doing business
Ohio Economic Highlights
21
Fortune 500 Companies
$788B
Annual GDP
5.7M
Workforce
7th
Largest State Economy
Ohio EIN Requirements
Mandatory EIN Requirements
All Ohio businesses in these categories must obtain an EIN:
- •Corporations (C-Corp and S-Corp)
- •Partnerships and Multi-member LLCs
- •Any business with employees
- •Single-member LLCs (highly recommended)
- •Nonprofit organizations
- •Trusts and estates
Ohio-Specific Considerations
- OH Business Tax Registration: Ohio requires registration with OH Department of Taxation using your federal EIN
- Commercial Activity Tax (CAT): For 2025 and later, the annual exclusion is $6 million in Ohio taxable gross receipts. Check current Ohio CAT rules for registration and exceptions.
- Sales Tax: Ohio vendors need EIN for sales tax permit with OH Department of Taxation