How to Form a Corporation in Indiana: The Complete 2026 Guide

Forming a corporation in Indiana means filing Articles of Incorporation with the Indiana Secretary of State through the INBiz portal, paying a $95 filing fee, naming at least one director, and keeping up two recurring obligations: the flat 4.9% corporate income tax (Form IT-20) and a $32 Business Entity Report that comes due only every other year. Indiana adds no franchise tax and no share-based tax, which keeps the ongoing cost of a C-Corp here among the lowest in the Midwest. This guide walks through every step and cost of forming an Indiana C-Corporation, with online filing available through LLC Attorney starting at $49.

C-Corp vs LLC in Indiana

Most first-time business owners in Indiana start with an LLC, and for good reason. An Indiana corporation earns its keep in narrower situations — when you intend to raise outside investment, issue stock options to employees, or eventually pursue an acquisition or public offering, all of which expect the C-Corp share structure rather than LLC membership interests.

Choose a Indiana corporation when:

• You plan to raise venture capital or institutional investment. VC firms, angels, and most institutional investors require a C-Corp structure before they write a check. Preferred stock, convertible notes, SAFEs, and board governance by class are native to corporations, not LLCs.
• You want to issue stock options to employees (ISOs). Corporations issue stock; LLCs issue membership interests. ISO and NSO option plans are available to corporations but not to LLCs.
• You expect to eventually go public or sell to a public company. Public markets operate on corporate stock mechanics.
• You are in a regulated industry where corporate structure is required or expected by licensing boards, government contracts, or institutional counterparties.

Stick with an LLC when:

• You are a small business with one or a few owners who will not need institutional investment.
• Pass-through taxation without payroll complexity is the priority.
• You do not need stock option plans or institutional investment mechanics.

Why and when to incorporate in Delaware vs your home state

Delaware is the default for startups on a venture track. Institutional investors expect it, term sheets assume it, and the Court of Chancery resolves corporate disputes faster than any general trial court. If you are raising a priced round or structuring for QSBS eligibility, incorporate in Delaware.

If you are not raising outside capital, Indiana is usually the better choice. A Delaware corporation operating in Indiana still has to register as a foreign corporation there, pay Indiana fees, and file a Delaware franchise tax return each March 1. That is duplicate overhead with no benefit for a business that will not seek institutional investment.

What's Unique About Corporations in Indiana?

Indiana stands out for keeping the cost and cadence of corporate compliance unusually light. The state charges no franchise tax and bases nothing on your share count, so authorizing a million shares costs the same as authorizing a thousand. The recurring Secretary of State filing, the Business Entity Report, comes due only every two years and runs $32, one of the lowest ongoing burdens in the country. The trade-off worth planning for is the county income tax that sits on top of the state individual rate, which matters for shareholder-employees and for any S-Corp election where income passes through to individuals.

Key Indiana-specific requirements:

• Articles of Incorporation (not "Articles of Organization" — that is the LLC filing document)
• Minimum of 1 director (Ind. Code § 23-1-33-3); no residency or shareholder requirement
• 4.9% flat corporate income tax on Indiana-source income (Form IT-20); no franchise tax, no share-based or capital tax — only the biennial $32 Business Entity Report
• Business Entity Report is biennial — due in the anniversary month every other year, not annually, which is easy to forget across the two-year gap
• Closely held corporations (50 or fewer shareholders) may dispense with a board of directors under Ind. Code § 23-1-33-1

Selecting a Name for Your Indiana Corporation

Your corporation's name must comply with Indiana naming requirements:

• Must include "Corporation," "Incorporated," "Inc.," "Corp.," or another Indiana-approved designator (Ind. Code § 23-1-23-1)
• Must be distinguishable from all existing Indiana entities in the INBiz business search
• Indiana accepts Corporation, Incorporated, Company, or Limited and their abbreviations (Corp., Inc., Co., Ltd.) as the required entity designator; the word Company may not be immediately preceded by and
• Names implying government affiliation or banking activity are restricted

Search the INBiz business search at inbiz.in.gov before filing. Your name search is not a reservation — the name can be registered by another filer while you prepare your Articles of Incorporation.

Name reservation: file a name reservation with the Indiana Secretary of State, Business Services Division, $20 fee, holding the name for 120 days. Recommended if your paperwork takes more than a few days to prepare.

Directors, Officers, and Shareholders in a Indiana Corporation

A Indiana corporation has three distinct roles:

Shareholders own the corporation. They hold stock and vote on major decisions — electing directors, approving mergers, authorizing major asset sales. Shareholders do not manage day-to-day operations.

Directors govern the corporation through a Board of Directors. They set strategic direction, authorize major transactions, and oversee management. Indiana's director requirements: Indiana requires at least one director (Ind. Code § 23-1-33-3), with the exact number fixed in the articles or bylaws and a variable range permitted. Directors need not be Indiana residents or shareholders unless the articles or bylaws say so (Ind. Code § 23-1-33-2). Indiana also lets a corporation with 50 or fewer shareholders dispense with the board entirely and have the shareholders run the company directly, an option most other states do not offer.

Officers (CEO, CFO, Secretary, etc.) manage day-to-day operations. Officers are appointed by the Board of Directors. Indiana requires whatever officers the bylaws or board specify, with the same individual permitted to hold two or more offices (Ind. Code § 23-1-36-1). A single individual may incorporate, own all the stock, sit as the only director, and hold every officer position at once, which is the normal arrangement for an Indiana one-person corporation.

Designating a Registered Agent

Every Indiana corporation must designate a Registered Agent — a person or entity with a physical Indiana street address who receives legal notices, lawsuits, and official state correspondence on behalf of your corporation.

Every Indiana corporation must continuously maintain a registered agent with a physical street address in Indiana (Ind. Code § 23-1-24-1); a P.O. box alone will not satisfy the requirement. The agent must be available during business hours to accept service of process and official mail, and the agent's name and address appear in the public INBiz record. An individual agent must reside in Indiana, while a commercial agent must be authorized to do business in the state.

If the Indiana Secretary of State, Business Services Division cannot deliver legal notices to your Registered Agent, Indiana can administratively administratively dissolve your corporation. LLC Attorney's Indiana Registered Agent service is $125/year.

Indiana Corporation Costs and Compliance

How to Form a Corporation in Indiana

If You Do It Yourself

If LLC Attorney Does It for You

1. Submit your information at llcattorney.com — corporate name, director structure, authorized shares, Registered Agent preference, fiscal year, and target formation date. No forms to find or download.
2. LLC Attorney files your Articles of Incorporation with the Indiana Secretary of State, Business Services Division, drafts your bylaws, handles your organizational meeting consent, issues your stock ledger documentation, applies for your EIN, and covers same-day filing if needed. Your Registered Agent designation and initial Business Entity Report are included.
3. Receive your approved Articles of Incorporation, bylaws, organizational consent, stock documentation, and EIN confirmation through your LLC Attorney client portal. Annual compliance reminders are included so you never miss a Online (inbiz.in.gov) deadline or annual tax payment.

S-Corp Election for Indiana Corporations — What You Need to Know

An S-Corp election is not a separate entity — it is a federal tax election made by an existing corporation. Your Indiana corporation remains a Indiana corporation; you are only changing how the IRS taxes it.

The S-Corp tax advantage: a C-Corp pays 21% federal corporate income tax on net income, and shareholders pay income tax again on dividends. An S-Corp passes income directly to shareholders' personal returns, skipping the corporate-level tax. For owner-operated businesses with consistent profitability above roughly $40,000/year, the S-Corp election typically produces material tax savings.

S-Corp payroll requirement: if you elect S-Corp status and work in the business, you must pay yourself a "reasonable salary" subject to payroll taxes. The savings come from income above that salary, which passes through without payroll tax. Skip the salary and the IRS can reclassify your distributions as wages and assess back payroll taxes plus penalties.

Eligibility requirements:

• 100 or fewer shareholders
• All shareholders must be U.S. citizens or permanent residents
• Only one class of stock (identical distribution and liquidation rights)
• No institutional shareholders, partnerships, or non-resident alien shareholders

Indiana treatment of S-Corps: Indiana automatically recognizes a valid federal S-Corp election, so there is no separate state election form to file. An Indiana S-Corporation files the informational Form IT-20S, and income passes through to shareholders, who report it on their Indiana individual returns at the state individual rate (2.95% in 2026, declining to 2.9% in 2027) plus their county income tax. Indiana also offers a pass-through entity tax (PTET) election on the IT-20S, which lets the corporation pay the tax at the entity level to work around the federal SALT deduction cap, a calculation worth running with a CPA.

Filing deadline: IRS Form 2553 must be filed within 75 days of formation, or by March 15 of the tax year for which you want the election effective. Late elections are sometimes accepted with a written explanation of reasonable cause.

When Should You Consult an Attorney for Your Indiana Corporation?

LLC Attorney provides on-demand attorney consultations for a flat rate per 30-minute session — no retainer required. Corporation formation benefits from attorney guidance more than most entity types because of share structure, bylaw complexity, and S-Corp election timing. Common scenarios:

• Multiple founders or investors: share structure decisions made at formation (authorized shares, classes, par value) affect every future financing round and exit. A misstructured cap table is expensive to unwind.
• S-Corp election analysis: whether to elect depends on projected net income, payroll requirements, and state-level S-Corp recognition. The payroll requirement catches founders off guard.
• High-liability industry: regulated industries may have specific corporate structure requirements from licensing boards or insurance carriers.
• Raising capital: if you plan to raise institutional capital, your share structure, option pool, and Delaware vs. home-state decision should be reviewed before you file.
• Indiana-specific wrinkles: Indiana may have corporate law provisions a generic national template does not cover correctly.

What You Actually Get When You Incorporate in Indiana with LLC Attorney

An Indiana corporation that exists only as a state filing is only half-built. The INBiz submission creates the legal entity, but it does not produce the bylaws, board consents, or stock ledger that actually let the corporation hold a bank account, take on a shareholder, or survive due diligence. A "$0 filing" that stops at the state form leaves all of that undone — and in Indiana, where the next state touchpoint may be two years away, those gaps tend to surface at the worst possible moment.

Included with LLC Attorney corporation formation, starting at $95:

• Same-day or 24-hour Indiana filing at no markup on the state fee. Most services charge extra to expedite.
• Attorney-drafted bylaws, initial board consent, and organizational minutes — customized, not auto-generated templates.
• Initial stock issuance and cap-table setup, so your ownership is documented correctly from day one.
• Federal EIN, obtained for you.
• Indiana Registered Agent service at $125/year, included to keep you in good standing.
• S-Corp election guidance when pass-through tax treatment is the right call for your situation.
• Access to attorney-trained Business Success Advisors at no charge, plus optional flat-fee attorney consultations (no retainer).

Because Indiana's recurring costs are low, the real value is getting the formation documents right the first time — bylaws, organizational consents, a stock ledger, and a calendar built around the every-other-year report so the long gap never catches you off guard.

Starting Your Indiana Corporation with LLC Attorney

Indiana's corporate formation requirements are straightforward but have a few wrinkles — the biennial report cadence, the county income tax layered on shareholder income, and whether a PTET or S-Corp election makes sense for your owners. Getting your directors, share structure, bylaws, and initial compliance filings right at formation prevents expensive corrections later.

The service handles Indiana corporation formation starting at $49. Same-day filing is available at no markup on state fees. On-demand attorney consultations in 30-minute increments — no retainer — cover bylaws drafting, S-Corp election analysis, Indiana PTET versus S-Corp analysis and county-tax planning for shareholder-employees, and annual tax planning. See our full pricing for all service tiers.

Frequently Asked Questions

How long does it take to form a corporation in Indiana?

Indiana corporate filings submitted online through INBiz are typically processed the same business day, which is why Indiana offers no separate paid expedited tier. Paper Articles of Incorporation mailed to the Secretary of State take roughly 2 to 3 weeks. Filing online is the recommended route in every case. LLC Attorney files your Indiana Articles of Incorporation electronically so the corporation is on record as fast as the state allows.

What is the difference between a C-Corp and an S-Corp in Indiana?

A C-Corp and an S-Corp are the same Indiana corporation — the difference is federal tax treatment only. A C-Corp pays corporate income tax at the entity level (21% federal rate), and shareholders pay personal income tax again on dividends. An S-Corp elects pass-through taxation — income flows to shareholders' personal returns without corporate-level tax. The election is made with the IRS via Form 2553 and has no impact on your Indiana formation documents. Because Indiana follows the federal S election automatically, the decision is driven by federal payroll-versus-distribution math, not by any Indiana-specific filing.

Can a single person form a corporation in Indiana?

Yes. One person can form and operate an Indiana corporation, serving as the sole shareholder, the only director, and every officer simultaneously, since Indiana permits one or more directors and allows one person to hold multiple offices (Ind. Code § 23-1-36-1). You still need to keep up corporate formalities to protect the liability shield: adopt bylaws, document organizational and annual consents, issue stock to yourself, and keep corporate funds strictly separate from personal accounts.

What taxes does a Indiana corporation have to pay?

An Indiana C-Corporation pays a flat 4.9% state adjusted gross income tax on the share of income apportioned to Indiana, reported on Form IT-20 and due the 15th day of the fourth month after fiscal year-end. Indiana has no corporate franchise tax and no tax based on authorized shares or capital, so the only recurring state charge beyond income tax is the $32 Business Entity Report every two years. At the federal level the corporation pays the 21% corporate income tax unless it elects S-Corp treatment, in which case income passes through to shareholders.

What is the Business Entity Report and when is it due?

Indiana corporations file a Business Entity Report every two years rather than annually. The report is due by the last day of the corporation's anniversary month, with the first one landing in the second year after incorporation. The fee is $32 filed online through INBiz or $50 on paper. The report confirms the corporation's principal office, registered agent, and the names of its officers and directors. Continued failure to file leads the Secretary of State to administratively dissolve the corporation, after which it must be reinstated before it can transact business.

Does a Indiana corporation need bylaws?

Indiana does not require corporations to file bylaws with the Secretary of State. However, bylaws are a legal requirement for corporate governance — they define how your board operates, how shareholder meetings work, how officers are appointed, and how major decisions are made. A corporation without bylaws is technically non-compliant and lacks the foundational document that governs all major corporate decisions. Every bank, investor, and serious counterparty will request your bylaws.

What happens if I miss the annual tax deadline?

Indiana has no franchise tax to fall behind on, but two other lapses carry consequences. Late or unpaid corporate income tax (Form IT-20) accrues interest and penalties assessed by the Department of Revenue. Separately, failing to file the biennial Business Entity Report leads the Secretary of State to administratively dissolve the corporation; once dissolved it cannot lawfully carry on business and must file the delinquent report plus a reinstatement application through INBiz to be restored.

Can I change my Indiana corporation to an LLC later?

Yes. Indiana permits a corporation to convert into an LLC by filing Articles of Entity Conversion with the Secretary of State through INBiz, along with the new entity's organizational document. The conversion is generally a taxable event for federal purposes and can trigger gain recognition at both the corporate and shareholder level, so model the tax consequences with a CPA before filing; for some companies a dissolution and re-formation is cleaner depending on assets and basis.

What happens if my Registered Agent cannot be reached?

If Indiana is unable to deliver legal notices to your Registered Agent, the state can administratively administratively dissolve your corporation. This can happen without direct notice to you. A professional Registered Agent service ensures a qualified person is available during business hours at a physical Indiana address to receive any legal documents on your behalf.

Learn More About Indiana

• Indiana LLC Formation
• Indiana Registered Agent
• Indiana EIN Number
• Indiana Holding Company