How to Start a Corporation in Ohio

Incorporating your business in Ohio is straightforward if you follow the right steps. This guide walks you through the entire process, from choosing a name to receiving your official incorporation documents. Whether you're launching a startup or formalizing an existing operation, you'll find the exact requirements, costs, and timeline here.

What You'll Need Before You Start

Before filing anything, gather these materials and information:

• A unique business name that complies with Ohio requirements (more on this below)
• Registered agent details: a person or entity authorized to receive legal documents in Ohio
• Principal place of business address in Ohio (required by law)
• Articles of Incorporation form (Form 532A, available free from the Secretary of State)
• $99 filing fee (non-refundable, required at time of submission)
• Shareholder information: at minimum, you (the incorporator) must be identified
• Director names and addresses: if you plan to name them immediately
• Registered agent written acceptance: a signed document confirming the agent agrees to serve

Step 1: Choose and Reserve Your Corporate Name

Your corporate name must meet Ohio's specific requirements. The name must include one of these words or abbreviations: "corporation", "incorporated", "company", "corp.", "corp", "inc.", or "inc". The name must be distinguishable from every other registered corporation, LLC, limited partnership, or trade name on file with the Ohio Secretary of State.

Before filing, check availability using the free Ohio Secretary of State business search tool. This search takes 30 seconds and saves you from filing a form with a name that's already taken.

Optionally, reserve your name for 180 days before filing. This costs $39 and guarantees the name will be held for you while you prepare the full incorporation. Reserve names through the Ohio Business Central portal or by mail to the Secretary of State.

Step 2: Appoint a Registered Agent

Every Ohio corporation must appoint and continuously maintain a statutory agent. This is non-negotiable. Your statutory agent can be:

• A natural person who is a resident of Ohio, OR
• A corporation, LLC, partnership, or other entity with a registered business address in Ohio

The address you list must be a street address, not a post office box. If the agent is a person, use their primary Ohio residence address. If the agent is a business entity, use their usual place of business in Ohio. The Secretary of State will reject your filing if the address is a PO box, even if it has a street address associated with it.

Your statutory agent must sign a written acceptance confirming they agree to serve. You'll need both a written appointment (signed by you, the incorporator) and the agent's acceptance on the prescribed form from the Secretary of State. Submit both documents with your Articles of Incorporation.

If your statutory agent resigns later, the resignation takes effect 30 days after filing. Changing your agent or the agent's address costs $25.

Step 3: Complete the Articles of Incorporation (Form 532A)

The Articles of Incorporation is the core filing. It's a single-page form (Form 532A) that tells the state the basic facts about your corporation. You can obtain it free from the Secretary of State website.

Fill in these required fields:

• Corporation name: Exactly as you've chosen it
• Principal place of business: Your Ohio address (this is required, not optional)
• Registered agent name and address: The person or entity appointed in Step 2
• Incorporator name and address: This is you (or whoever is filing on behalf of the corporation)
• Number of authorized shares: Optional, but common (for example, 1,000 common shares)
• Additional provisions: Any bylaws or shareholder agreements you want included (optional)

You do not need to list directors, shareholders, or officers on the Articles. This keeps the filing simple and flexible. You'll establish those roles in your corporate bylaws after incorporation.

Step 4: File the Articles of Incorporation

You have two filing methods. Filing online is faster and is the recommended approach.

Filing Online (Fastest)

Go to Ohio Business Central and create an account if you don't have one. Upload your completed Form 532A, the statutory agent's written acceptance, and your written appointment of the agent. Pay the $99 filing fee by credit card or bank account. Standard processing takes 3 to 7 business days from the date the Secretary of State receives your filing. Online filing is the fastest option.

Filing by Mail

Print and mail Form 532A along with the agent documents and a check for $99 to:

Ohio Secretary of State
Business Services Division
P.O. Box 1390
Columbus, OH 43216

Mail processing takes longer than online filing. Standard service is 3 to 7 business days from receipt.

Expedited Filing (Optional)

If you need faster processing, Ohio offers three expedited options:

• Expedite Service 1: $100 additional fee, processed within 2 business days of receipt
• Expedite Service 2: $200 additional fee, processed within 1 business day
• Expedite Service 3: $300 additional fee, processed within 4 hours if delivered in person by 1:00 p.m., or by noon the next business day

Expedited filings by mail or delivery go to P.O. Box 1390, Columbus, OH 43216. Online filing does not offer expedited options yet.

Step 5: Receive Your Certificate of Incorporation

When the Secretary of State approves your filing, they will issue a Certificate of Incorporation. If you filed online, you'll receive a digital copy via email. If you filed by mail, the certificate will arrive by mail. This document officially recognizes your corporation as a legal entity.

Print and keep multiple copies. You'll need it to open a business bank account, apply for an Employer Identification Number (EIN), and prove your legal status to vendors and partners.

Step 6: Obtain an EIN and Open a Business Bank Account

Your new corporation is now a separate legal entity, but it needs a tax identification number. Apply for an Employer Identification Number (EIN) through the federal IRS, even if you have no employees. This is free and takes about 15 minutes online at IRS.gov. Your EIN is used for tax filings, employee payroll, and business banking.

Once you have your EIN and Certificate of Incorporation, open a business bank account in your corporation's name. Keep corporate and personal funds separate. This protects your personal liability shield, which is the main reason to incorporate.

Step 7: File Required Tax Registrations

Depending on what you sell, you may need a sales tax vendor's license. Every Ohio retailer selling taxable goods or services must obtain a vendor's license before making taxable sales. The application fee is $50 and you apply through the Ohio Department of Taxation. If you don't sell tangible goods or taxable services, you may not need this.

Ohio does not have a corporate income tax. Instead, corporations pay the Commercial Activity Tax (CAT) on gross receipts if they exceed $6 million in annual Ohio taxable gross receipts (for 2025 and later; the threshold was $3 million in 2024 and lower before that). The CAT rate is 0.26% of taxable gross receipts. CAT returns are filed quarterly. You'll register for CAT on the Ohio Department of Taxation website if your gross receipts exceed the threshold.

Tips for a Smooth Incorporation

• File online through Ohio Business Central: It's the fastest method and you get an instant confirmation number.
• Use a unique, descriptive name: Avoid names that are too similar to competitors or generic terms. Your name is part of your brand.
• Choose your statutory agent carefully: This person or entity receives all official legal documents on behalf of your corporation. Make sure they are reliable and will notify you of any documents received.
• Don't list bylaws in the Articles: Keep the Articles simple. Write bylaws separately and adopt them by board resolution after incorporation. This gives you flexibility to amend them later.
• Get a federal EIN before opening a bank account: Banks now require this for all new business entities.
• Consult a CPA or accountant about the CAT: If your gross receipts are close to $6 million, understand whether you owe CAT. It's a state-specific tax many business owners overlook.
• Keep corporate formalities: Hold annual director meetings, keep minutes, and maintain separate accounting. The corporate shield is only protected if you treat the corporation as a real entity.

Common Mistakes to Avoid

• Forgetting the statutory agent's acceptance: Both the agent's written acceptance and your written appointment must be included with your filing. Missing either one delays approval.
• Using a PO box for the agent's address: The Secretary of State rejects this. Use a street address.
• Choosing a name that's too similar to an existing name: Check the business search carefully. "Too similar" is subjective, but the Secretary of State will flag obvious conflicts.
• Not obtaining an EIN: You need this to hire employees, open a business bank account, and file federal taxes. Don't skip it.
• Mixing personal and corporate finances: Commingling money defeats the purpose of incorporating. Keep accounts separate.
• Neglecting to register for CAT if required: If your gross receipts exceed $6 million, you owe CAT. Failing to register can result in penalties.

Expected Timeline and Results

The incorporation process typically takes 3 to 7 business days using standard online filing. Expedited options reduce this to same-day or next-day approval. Once approved, you will receive:

• A Certificate of Incorporation issued by the Ohio Secretary of State
• Confirmation that your corporation is legally registered and can conduct business
• The ability to open a business bank account in your corporation's name
• Liability protection, separating your personal assets from corporate debts (limited by piercing-the-veil circumstances)
• The right to issue stock to shareholders and establish a formal management structure

You will not receive an annual renewal requirement, as Ohio does not require annual or biennial reports for for-profit corporations. Once incorporated, your corporation continues indefinitely until you voluntarily dissolve it.

Next Steps After Incorporation

Incorporation is the foundation, but your business still needs ongoing setup:

• Draft bylaws and hold an organizational meeting to elect directors and issue stock
• Apply for a federal EIN if you haven't already
• Register for state sales tax if you sell tangible goods or taxable services
• Obtain any industry-specific licenses (health permits, professional licenses, etc.)
• Register for CAT if your gross receipts will exceed $6 million
• Consider consulting an attorney or CPA about tax structure and ongoing compliance

If you need help with any of these steps, contact the Ohio Secretary of State for incorporation questions or an attorney for legal and tax advice specific to your situation.

Disclaimer

This article is informational only and is not legal, tax, or financial advice. Corporation laws and tax rules are complex and change frequently. Before filing, consult a qualified attorney or CPA, especially if your situation involves multiple shareholders, significant assets, or complex ownership structures. The exact requirements and costs presented here were verified as of September 2026 and may change. Always confirm current fees and requirements with the Ohio Secretary of State before filing.