How to Start a Corporation in Indiana

If you're ready to start a business in Indiana, incorporating as a corporation is one of the most popular legal structures. A corporation is a separate legal entity that shields your personal assets from business liability, operates under its own name, and can be easier to transfer ownership of than a sole proprietorship or partnership. This guide walks you through the exact steps to incorporate in Indiana, the costs involved, and what to expect along the way.

Why Incorporate in Indiana?

Indiana offers a straightforward incorporation process with reasonable costs. The filing fee is just $95, and there's no franchise tax in Indiana. If your corporation generates profit, you'll pay the state's corporate adjusted gross income tax of 4.9%, which is a flat rate set since 2021. Indiana also has no separate state business license requirement, though you may need profession-specific licenses or local permits depending on your industry. The state's Secretary of State operates an efficient online filing system called INBiz, which means you can complete your incorporation entirely online without leaving your office or worrying about mail delays.

Before You Start: What You'll Need

Gather these items and information before you begin your incorporation. You'll be more efficient, and you won't get stuck halfway through the filing process looking for something you should have prepared earlier.

Choose and Reserve Your Corporate Name

Your corporation's name must be distinguishable from every other name already registered with the Indiana Secretary of State. "Distinguishable" means it contains different letters, numerals, or words compared to existing names in the state's records. Words like Inc., LLC, the, a, an, punctuation, capitalization, and the symbol & versus the word "and" do not make a name distinguishable, so don't count on those tricks.

Search the Indiana business database free at https://bsd.sos.in.gov/publicbusinesssearch to check if your name is available. If it is available and you want to lock it in before you file your full incorporation documents, you can reserve it for 120 days for $10 through the INBiz portal. This is optional but smart if you need time to finalize your business plan or coordinate with partners.

Identify Your Registered Agent and Office

Every corporation in Indiana must have a registered agent and a registered office. These are required by law. The registered agent is the person or company authorized to receive legal documents on behalf of your corporation. The registered office is the street address where those documents will be delivered. You cannot use a PO Box as your registered office unless it's accompanied by a rural route reference.

Your registered agent can be you (if you're an Indiana resident whose business office matches the registered office), another person who lives in Indiana, or a registered agent company. Many businesses use a professional registered agent service for convenience and privacy, though this costs extra. Your corporation may only have one registered agent at a time.

Prepare Your Corporate Structure

Decide on the following before you file: How many shares of stock will your corporation initially issue? Who are the incorporators (usually you, but can be multiple people)? Will you have a board of directors? While Indiana law allows flexibility here, having these basics planned prevents confusion later.

Step-by-Step: How to Incorporate in Indiana

Step 1: Complete the Articles of Incorporation Form

Download State Form 4159, "Articles of Incorporation, Domestic Corporation," from the Indiana Secretary of State website at https://www.in.gov/sos/business/. This is the official document that legally creates your corporation. The form asks for basic information: your corporation's name, the location of your principal office (can be anywhere, not just Indiana), the name and address of your registered agent, and the name of the incorporator (the person filing on behalf of the corporation).

You do not need to include a list of the board of directors, the corporate bylaws, or details about stock classes in the Articles. Indiana law keeps the incorporation document simple. Those details belong in your bylaws, which you'll create separately and are not filed with the state.

Step 2: File Online Through INBiz

Go to https://inbiz.in.gov/ and log in or create an account. Upload your completed Articles of Incorporation form. The INBiz system will walk you through any missing fields and calculate your filing fee. For a domestic corporation, the filing fee is exactly $95. You'll pay this fee online in the same session, so have a credit card or bank account ready.

After you submit your filing and payment, the Secretary of State processes it. Indiana does not publish a standard processing time, so your corporation is typically active as soon as your payment clears. Many incorporators see a confirmation the same day. You'll receive a filing receipt by email.

Step 3: Obtain an EIN from the IRS

An Employer Identification Number (EIN) is a federal tax ID for your corporation. You need an EIN even if you have no employees, because the IRS requires it for business tax returns and bank accounts. Apply free at https://www.irs.gov/ein. The process takes about 15 minutes, and you can receive your EIN immediately. (If you apply by mail, it takes about 4 weeks.) Alternatively, you can apply by phone or work with a tax professional.

Step 4: Open a Business Bank Account

Visit a bank and open a business checking account in your corporation's name. Bring your filing receipt from the Secretary of State, your Articles of Incorporation, your EIN letter from the IRS, and a government ID. A separate bank account is essential for tracking corporate income and expenses, and it helps you maintain the legal separation between your personal and corporate finances.

Step 5: Obtain a Sales Tax Permit (If Applicable)

If your corporation will sell tangible personal property (goods), you must register for a Registered Retail Merchant Certificate from the Indiana Department of Revenue. This costs $25. Register online at https://www.in.gov/dor/i-am-a/business-corp/business-education/register-business/. You'll collect and remit Indiana sales tax (7% state rate, plus any local taxes in your county). If you only provide services and don't sell goods, you may not need this permit, but confirm with the Department of Revenue if you're unsure.

Step 6: Apply for Industry-Specific Licenses

Depending on what your corporation does, you may need a professional or occupational license. Indiana issues licenses for healthcare, construction, real estate, law, accounting, and dozens of other fields. The Indiana Professional Licensing Agency manages most of these. Check its website at the Department of Revenue to see what applies to your industry. Licenses are not filed with your incorporation; they're separate applications with different requirements and fees.

Step 7: Create Corporate Bylaws

Bylaws are your internal rules for how the corporation operates: how directors are elected, when shareholders meet, how voting works, etc. Bylaws are not filed with the state, but they are essential for managing the corporation properly. You can write your own (many templates exist online) or have an attorney draft them. At minimum, establish bylaws before your first shareholders' or directors' meeting.

Step 8: Plan for Your Biennial Business Entity Report

Every two years, your corporation must file a Business Entity Report with the Indiana Secretary of State. The first report is due two years after your incorporation date, by the end of the month in which you incorporated. The report costs $32 if filed online through INBiz. Set a calendar reminder now so you don't miss this deadline. Failing to file the report can result in administrative dissolution, meaning your corporation loses its legal status without warning.

Costs and Timeline

Filing costs are minimal. The Articles of Incorporation filing fee is $95. If you reserve your name beforehand, add $10. A sales tax permit is $25 if you sell goods. An EIN is free. Professional registered agent services (optional) typically run $100 to $300 per year if you choose not to handle that role yourself.

Timeline: If you have all information ready, you can complete incorporation in a single day. File your Articles of Incorporation in the morning, get your EIN that afternoon, and open a bank account the next business day. If you reserve your name first, add 1 to 5 business days. If you need time to choose your name or coordinate with other incorporators, add whatever time that takes.

Ongoing costs: Every two years, the Business Entity Report costs $32. If you sell goods, you'll file monthly or quarterly sales tax returns (no fee, but you collect and remit tax). Industry-specific licenses vary widely in cost and renewal frequency.

Tips and Common Mistakes to Avoid

Mistake 1: Forgetting the biennial report. This is the number one trap. Your corporation is automatically dissolved if you miss the deadline, and the state doesn't send a warning. The moment you incorporate, set a calendar reminder for two years later.

Mistake 2: Using a PO Box as your registered office. Indiana requires a street address. A mailbox service address may work if it includes a rural route reference, but a pure PO Box will not. Verify your address meets the requirement before filing.

Mistake 3: Assuming you don't need a sales tax permit. If you have any doubt whether your business sells taxable goods, contact the Department of Revenue and ask. Collecting sales tax without a permit, or not collecting it when required, creates tax liability and penalties.

Mistake 4: Mixing personal and business finances. Open a business bank account immediately and use it exclusively for corporate transactions. Commingling personal and business money weakens the legal protection that incorporation provides.

Mistake 5: Neglecting bylaws. Some incorporators skip bylaws because they're not filed with the state. Don't fall into this trap. Bylaws prevent disputes and clarify decision-making. Even a one-person corporation benefits from written bylaws.

Tip 1: Use the name reservation to buy time. If you need a few weeks to finalize decisions, the $10 name reservation lets you lock in your name without committing to the full filing yet.

Tip 2: Save the Articles of Incorporation receipt. Keep your filing receipt and a certified copy of your Articles somewhere safe. You'll need them to open a bank account, apply for licenses, and prove your corporation exists.

Expected Results

After you file, you'll have a legally registered corporation that can own property, enter contracts, sue and be sued, and hire employees. You'll have personal liability protection, meaning creditors and lawsuits generally target the corporation's assets, not your personal savings or home. Your corporation's income is subject to the 4.9% corporate adjusted gross income tax in Indiana, and you'll pay income tax on any salary or distributions you take from the corporation. You can reinvest profits in the business or distribute them to shareholders.

Next Steps After Incorporation

Once your corporation is formed, your first real tasks are: draft and adopt bylaws, hold your initial directors' meeting, issue stock to shareholders, get an EIN and business bank account, and register for any required licenses. If you need help with tax planning or want guidance on how to structure ownership or compensation, consult with a CPA or tax professional. The Indiana Small Business Development Center at https://isbdc.org/ offers free or low-cost counseling on business structure and startup steps.

Disclaimer

This article provides informational guidance on the Indiana incorporation process and is not legal, tax, or accounting advice. The requirements and fees described are accurate as of the date of publication but may change. For complex situations, partnership structures, tax planning, or questions about liability protection, consult a qualified Indiana business attorney or CPA. The Secretary of State's website at https://www.in.gov/sos/business/ is the official source for incorporation rules and forms.