To register a business in Indiana, you file formation documents with the Secretary of State through the state’s INBiz portal, appoint a registered agent with an Indiana street address, get a federal Employer Identification Number from the IRS, and then register for state taxes with the Indiana Department of Revenue. Depending on what you do and where you do it, professional or local licenses may follow. Online filings usually clear within a day; the tax and licensing pieces take longer.
Sole proprietors and general partnerships are the exception. They don’t file with the Secretary of State at all. Registration happens at the county recorder’s office, and if you’ll operate under any name other than your own legal name, you file an assumed business name (a DBA) with the recorder in each county where you do business.1IN.gov. Where Do I Register a Sole Proprietorship?2IN.gov. How Do I File an Assumed Business Name (DBA)? The trade-off is no liability shield: your personal assets stand behind the business’s debts and lawsuits. Most people forming a business with any real risk pick a formal entity instead, and the steps below are for them.
Choose a Business Structure
Indiana recognizes several formal entity types, each with its own statute. Your choice drives liability, taxes, and management.
- Corporation. Formed by filing Articles of Incorporation under the Indiana Business Corporation Law. Shareholders own it, a board manages it, and the corporation absorbs its own debts. Income is taxed twice by default: once at the corporate level and again when distributed as dividends.3INBiz. Business Registration – Business Entity
- S corporation. Not a separate Indiana entity type. You form a regular corporation, then elect S status with the IRS on Form 2553. Income passes through to shareholders and is taxed only on their personal returns. The corporation can’t have more than 75 shareholders and must meet other IRS criteria.3INBiz. Business Registration – Business Entity
- Limited liability company. Formed under the Indiana Business Flexibility Act. An LLC combines corporate liability protection with partnership-style tax treatment; owners are called members. If it qualifies under IRS rules, an LLC is taxed only at the member level. An operating agreement isn’t legally required, but writing one saves arguments later.4Indiana General Assembly. Indiana Code 23-18-1-1 – Citation of Article
- Limited partnership. At least one general partner runs the business and carries full liability; limited partners invest and risk only their contribution. Income passes through to the partners.
- Limited liability partnership. A general partnership that registers with the Secretary of State to shield partners from many partnership debts. Common among law and accounting firms.
- Nonprofit corporation. Filed like a regular corporation but organized for purposes other than profit. Tax-exempt status has to be obtained separately from both the IRS and the Indiana Department of Revenue.3INBiz. Business Registration – Business Entity
Federal tax treatment matters as much as state structure. A C corporation pays the flat 21 percent federal corporate income tax before shareholders pay tax on dividends. An S corporation or a qualifying LLC skips that corporate-level tax entirely. The trade-off is that S corporations face restrictions on the number and type of shareholders that C corporations don’t.
Pick and Check Your Name
Your entity name has to be distinguishable from every other name on file with the Secretary of State. Indiana Code spells this out: the name can’t be confusingly similar to any existing entity, any entity dissolved within the last 120 days, or any reserved or registered name.5Indiana General Assembly. Indiana Code 23-0.5-3-1 – Permitted Names Search the INBiz database before you commit.
The name also needs the right designator. LLCs use “LLC” or “Limited Liability Company”; corporations use “Inc.,” “Corp.,” or a similar indicator. Missing or wrong designators are among the most common reasons filings get rejected.
One boundary worth naming: registering a business name with the state only stops another Indiana entity from filing under the same name. It is not a trademark. Brand protection across state lines or online requires a separate federal trademark application through the U.S. Patent and Trademark Office.
Appoint a Registered Agent
Every formal Indiana entity must designate a registered agent with a physical street address in Indiana.6Indiana General Assembly. Indiana Code 23-0.5-4-1 – Entities Required to Designate and Maintain a Registered Agent The agent receives legal documents on behalf of the business, including lawsuits and official state notices. You can serve as your own agent, name someone else in the business, or hire a commercial service.
A commercial service runs roughly $50 to $300 a year and keeps your personal address off public records while making sure someone is available during business hours to accept service of process. If the state tries to deliver documents and your agent isn’t reachable, you can miss lawsuit deadlines or lose your entity’s good standing.
File Formation Documents
Which document you file depends on your entity type. Corporations file Articles of Incorporation, which must include the corporate name, the number of shares the corporation is authorized to issue, the registered agent’s name and street address, and the name and address of each incorporator.7Indiana General Assembly. Indiana Code 23-1-21-2 – Articles of Incorporation Contents LLCs file Articles of Organization, which cover similar ground without share information.
You have two ways to submit. Online through INBiz is the primary route; filings typically process within 24 hours and cost less than paper.3INBiz. Business Registration – Business Entity Paper filings mailed to the Business Services Division in Indianapolis take longer, sometimes several weeks depending on volume, and carry a higher fee.8Indiana Secretary of State. Business Services Division – Contact Us
Filing fees for an LLC or corporation currently run around $95 to $100, with online submissions at the lower end. A small processing surcharge is added at checkout, and fees can change, so check the INBiz fee calculator for the current amount. Once the state approves your filing you’ll receive a Certificate of Organization (for LLCs) or Certificate of Incorporation (for corporations). That certificate is your proof the entity legally exists.
Get a Federal EIN
Almost every formal entity needs an Employer Identification Number from the IRS before it can open a bank account, hire employees, or file taxes. You’ll need one if you operate as a partnership or corporation, plan to hire employees, or need to pay sales or excise taxes.9Internal Revenue Service. Get an Employer Identification Number The IRS wants you to form the entity with the state first.
Applying is free and takes about 15 minutes online at irs.gov. You get the EIN immediately when you finish. There’s no reason to pay a third-party service.
Register for Indiana State Taxes
Once you have an EIN, register with the Indiana Department of Revenue.10Indiana Department of Revenue. Business or Corporation You do this by completing the Business Tax Application (Form BT-1), which is submitted through INBiz.11Indiana Department of Revenue. Business Tax Application Checklist The single application covers multiple tax types, including state sales tax and employer withholding tax.
If you sell tangible goods or certain services, you’ll also need a Registered Retail Merchant Certificate. The fee is $25 per business location.12Indiana General Assembly. Indiana Code 6-2.5-8-1 – Registered Retail Merchants Certificate Once you’re registered, the Department of Revenue assigns you an Indiana Tax ID Number for all state tax filings.
One warning worth repeating: a business owner who collects sales tax from customers but doesn’t remit it to the state is personally liable for the unpaid amount, and intentional failure to remit is a criminal offense under Indiana law.13Indiana General Assembly. Indiana Code 35-50-2-7 – Level 6 Felony New owners get in trouble here by treating collected sales tax as operating cash. Open a separate account for it from day one.
Handle Employer Requirements If You’re Hiring
Bringing on employees triggers several obligations beyond state income tax withholding.
Workers’ compensation insurance is required for most Indiana businesses with employees. The Worker’s Compensation Board of Indiana administers the program, and going without coverage exposes you to penalties and personal liability for workplace injuries.14Worker’s Compensation Board of Indiana. Who Is Eligible
Federal unemployment tax (FUTA) applies at a standard 6.0 percent on the first $7,000 of each employee’s wages. Most employers get a 5.4 percent credit for paying state unemployment taxes on time, bringing the effective federal rate to 0.6 percent.15Internal Revenue Service. FUTA Credit Reduction You’ll also need to register with the Indiana Department of Workforce Development for state unemployment insurance.
Covered employers must also follow the federal Fair Labor Standards Act on minimum wage, overtime, recordkeeping, and posting requirements.16U.S. Department of Labor. Wages and the Fair Labor Standards Act
Get Any Licenses Your Industry or Location Requires
State-level formation doesn’t cover industry licensing. The Indiana Professional Licensing Agency oversees dozens of boards spanning accountancy, engineering, pharmacy, real estate, cosmetology, and more.17IN.gov. PLA – Professions If your business practices a regulated profession, every practitioner needs an active individual license from the relevant board.
Local permits are the next layer. Your county or city may require a general business license, a zoning permit confirming your location is approved for commercial use, or industry-specific approvals like health department sign-off for food service. Requirements vary sharply between municipalities, so call your local clerk’s office early rather than after signing a lease.
A few industries also face federal licensing on top of state and local. Businesses working with alcohol, tobacco, firearms, broadcasting, transportation, or agriculture often need permits from the relevant federal agency, such as ATF, FCC, DOT, or USDA.
Keep the Entity in Good Standing
Registration isn’t a one-time event. Indiana requires every registered business to file a Business Entity Report every two years through INBiz. Your first report is due two years after formation, and later reports are due during the anniversary month of your original filing.18INBiz. Business Entity Reports You have until the end of that month before it counts as past due.
Missing this filing has teeth. The Secretary of State will administratively dissolve an Indiana business or revoke a foreign business’s authority to operate for failure to file.18INBiz. Business Entity Reports You can reinstate, but it means extra paperwork, extra fees, and a gap during which the entity technically didn’t exist. During that gap, you can lose the liability protection you formed the entity to get.
Keep your registered agent information current too. If your agent changes address or you switch providers, update the state promptly. A lapsed registered agent is the other common trigger for administrative dissolution.19INBiz. Filing – Business Entity Set calendar reminders for your report due dates and check your agent status once a year. Small tasks, disproportionately harsh consequences if you forget them.