Iowa Code 490: Iowa Business Corporation Act Formation and Dissolution

The Iowa Business Corporation Act, codified at Chapter 490 of the Iowa Code, governs every stage of a corporation’s life in Iowa. Forming a corporation costs $50 to file Articles of Incorporation with the Secretary of State. Once formed, the corporation owes a biennial report every even-numbered year (due April 1, $60 online), must maintain a registered agent in Iowa, and follows statutory rules on directors, shareholders, and dissolution. What follows is what you actually need to know to form, run, or close a corporation under Chapter 490.

Forming a Corporation Under Chapter 490

What Goes in the Articles of Incorporation

The articles must include the corporation’s name, the number of shares it is authorized to issue, the street and mailing addresses of the initial registered office, the name of the initial registered agent, and the name and address of each incorporator. The filing fee to the Secretary of State is $50.¹

Name Rules

The name must include a corporate signal (“corporation,” “incorporated,” “company,” or “limited,” or the abbreviations “corp.,” “inc.,” “co.,” or “ltd.”) and must be distinguishable on the Secretary of State’s records from any active corporation, LLC, or limited partnership registered in Iowa.² The name of a dissolved corporation stays protected for five years if the corporation is reinstated during that window, so check availability before you file.

Registered Agent and Office

The corporation must continuously maintain a registered office and registered agent in Iowa. The agent can be an individual Iowa resident whose business address is the registered office, or another business entity with an office at that address.¹ The agent receives legal process and official mail. Commercial agent services typically run $100 to $300 a year.

Bylaws

Bylaws are adopted after filing, usually by the initial board at the first organizational meeting. They cover how directors are elected, when meetings occur, what officers exist, and how shares get issued. Bylaws can’t override the articles or state law, but within those limits the corporation has broad flexibility.

An EIN from the IRS is separate from Chapter 490 and handled at the federal level after the state accepts your articles.³

How the Corporation Is Governed

Board of Directors

The board manages the corporation’s business. A quorum is a majority of the fixed number of directors unless the articles or bylaws set another number, and the articles or bylaws can’t lower the quorum below one-third of the board.⁴ When a quorum is present, a majority vote of the directors at the meeting decides the question. Directors can meet by video conference, and they can act without a meeting if every director signs a written consent.¹

Officers

The board appoints officers. Chapter 490 does not require specific titles; the bylaws or a board resolution set which officers exist and what each one is authorized to do. Officers owe the same duties of care and loyalty as directors.

Shareholder Meetings and Voting

Shareholders vote on the biggest decisions: electing directors, approving mergers, amending the articles, and authorizing dissolution. The corporation must give shareholders notice of any meeting at least 10 days and no more than 60 days before the date, and a special-meeting notice must state the purpose.⁵ A quorum is a majority of the shares entitled to vote unless the articles or bylaws set otherwise.⁶

Defaults That Catch People

Two Chapter 490 defaults tend to surprise founders and minority owners.

Preemptive rights are off unless you turn them on. If the board later issues new shares, existing shareholders have no automatic right to buy a proportional slice unless the articles of incorporation opt in with language like “the corporation elects to have preemptive rights.”⁷ It’s easy to skip at formation and painful to fix once dilution is on the table.

Inspection rights exist but have gates. A shareholder can inspect basic records during regular business hours with five business days’ written notice; for accounting records and board minutes, the shareholder must show the request is in good faith and for a proper purpose.¹

Derivative Suits

When directors or officers harm the corporation and the board won’t act, a shareholder can sue on the corporation’s behalf. First the shareholder must make a written demand on the corporation and wait 90 days, unless waiting would cause irreparable injury.⁸ Skipping the demand step is the fastest way to lose the case at the pleading stage.

Director and Officer Liability Limits

Directors and officers are fiduciaries. The duty of care requires informed decisions; the duty of loyalty requires putting the corporation ahead of personal interests, with any conflicted transaction disclosed and approved by disinterested directors or shareholders.

Chapter 490 lets the articles of incorporation include a provision eliminating or limiting a director’s personal liability for money damages. That exculpation clause is standard in Iowa charters, but it has four carve-outs. A director remains personally liable for receiving a financial benefit they weren’t entitled to, intentionally harming the corporation or its shareholders, violating the statute on improper distributions, or intentionally violating criminal law. Indemnification provisions in the articles carry the same four exclusions.⁹

Ongoing Compliance

Biennial Report

For-profit corporations file a biennial report with the Secretary of State every even-numbered year. The filing window opens January 1 and closes April 1. Online filing is $60; paper filing is $45.¹⁰¹¹ The report refreshes the registered agent, registered office, and principal office address. Failing to file can lead to administrative dissolution.¹²

State Corporate Income Tax

For tax years beginning on or after January 1, 2026, Iowa’s corporate income tax rates are 5.5% on the first $100,000 of taxable income and 7.1% on income above $100,000.¹³ A statutory mechanism flattens the rate to 5.5% across all brackets once statewide net corporate income tax receipts exceed $700 million in a fiscal year. Fiscal year 2025 receipts came in at roughly $621 million, so the higher bracket still applies.¹⁴

Out-of-State Corporations Doing Business in Iowa

A corporation formed outside Iowa that transacts business here must file a Foreign Registration Statement with the Secretary of State and pay a $100 fee.¹⁰ The filing supplies the corporation’s legal name, state of incorporation, an Iowa registered agent and office, and the names and addresses of current directors and officers.

Doing business without registering has bite. An unregistered foreign corporation cannot maintain a lawsuit in any Iowa court until it registers, and the state can impose a civil penalty of up to $1,000, collected by the Attorney General.¹⁵ Contracts stay valid and the corporation can defend suits filed against it, but losing the ability to sue is a serious disadvantage.

Professional Corporations Are a Different Chapter

Chapter 490 does not govern licensed professionals who want to incorporate. Doctors, lawyers, accountants, and similar professions incorporate under Chapter 496C, the Professional Corporation Act. Every incorporator and shareholder must hold a license in the profession the corporation practices; if a shareholder loses their license, the corporation must immediately buy back their shares. All directors and officers (except assistant officers) must also be licensed, and shares can transfer only to other licensed individuals or back to the corporation.¹⁶

Closing a Corporation

Voluntary Dissolution

Voluntary dissolution is a two-step vote: the board recommends dissolution, then the shareholders approve it. The corporation then files Articles of Dissolution with the Secretary of State for a $5 fee. The articles state the corporation’s name, the date dissolution was authorized, and that shareholder approval was obtained as required.¹⁰¹⁷

Winding Up and Creditor Claims

The corporation keeps existing after filing so it can settle debts, collect receivables, and distribute what remains. It should give known creditors written notice describing what a claim needs to include, where to send it, and a submission deadline of at least 120 days. A known creditor who misses that deadline is barred, and a creditor whose claim is rejected has 90 days to sue or lose the right to collect.¹⁸

For unknown claims, the corporation can publish a notice of dissolution. Any claim not brought within three years after publication is permanently barred.¹⁹ Publishing is worth doing even if no unknown creditors seem likely, because it starts the three-year clock.

Administrative Dissolution and Reinstatement

The Secretary of State can administratively dissolve a corporation that fails to file its biennial report or maintain a registered agent. The corporation can apply for reinstatement at any time after the effective date of dissolution by stating that the grounds have been eliminated. If more than five years have passed, the applicant must also show the corporate name still meets Iowa’s naming rules, because name protection expires at five years.²⁰

Judicial Dissolution

A court can order dissolution in extreme cases: shareholder deadlock that has stopped the corporation from functioning, illegal or oppressive conduct by those in control, or waste of corporate assets. Courts treat it as a last resort and may appoint a custodian or receiver to run the corporation temporarily before ordering it wound down. In some minority-oppression or deadlock cases, a court-ordered buyout of the oppressed shareholder’s interest is an alternative to dissolving the corporation.

Mergers, acquisitions, and appraisal rights for dissenting shareholders are governed by their own set of Chapter 490 procedures, with strict statutory deadlines for the demand and valuation process.¹ If you’re heading into that kind of transaction, work from the statute and get counsel before the notice goes out.

1
Iowa Legislature. Iowa Code Chapter 490 – Business Corporations
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Iowa Legislature. Iowa Code 490.401 – Corporate Name
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Internal Revenue Service. Get an Employer Identification Number
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Iowa Legislature. Iowa Code 490.824 – Quorum and Voting
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Iowa Legislature. Iowa Code 490.705 – Notice of Meeting
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Iowa Legislature. Iowa Code 490.725 – Quorum and Voting Requirements for Voting Groups
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Iowa Legislature. Iowa Code 490.630 – Shareholders Preemptive Rights
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Iowa Legislature. Iowa Code 490.742 – Demand
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Iowa Legislature. Iowa Code 490.202 – Articles of Incorporation
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Iowa Secretary of State. Business Entity Forms and Fees
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Fast Track Filing Resource Center. How Do I File a Biennial Report?
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Iowa Secretary of State. Business FAQs
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Department of Revenue. Iowa Corporate Income Tax Rates
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Iowa Department of Revenue. Order 2025-02 Certifying Iowa Corporate Income Tax Rates
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Iowa Legislature. Iowa Code 504.1502 – Consequences of Transacting Business Without Authority
16
Iowa Legislature. Iowa Code Chapter 496C – Professional Corporations
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Iowa Legislature. Iowa Code 490.1403 – Articles of Dissolution
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Iowa Legislature. Iowa Code 490.1406 – Known Claims Against Dissolved Corporation
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Iowa Legislature. Iowa Code 490.1407 – Other Claims Against Dissolved Corporation
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Iowa Legislature. Iowa Code 490.1422 – Reinstatement Following Administrative Dissolution