How to Incorporate a Corporation in Iowa

Filing fee: $50 (Articles of Incorporation, filed online via Fast Track Filing)

Processing time: Typically 3–5 business days for standard online filing; expedited options may be available

State agency: Iowa Secretary of State — Fast Track Filing System (sos.iowa.gov)

Annual report due: Biennial report due April 1 in odd-numbered years; $45 filing fee

State tax rate: Iowa corporate income tax: graduated rates up to 8.4% (as of 2024); no franchise tax for standard corporations

To incorporate a corporation in Iowa, you file Articles of Incorporation with the Iowa Secretary of State through the Fast Track Filing System and pay the $50 state fee. You'll also need a registered agent with an Iowa address, an Employer Identification Number (EIN) from the IRS, and corporate bylaws before you open for business.

Step 1: Choose and reserve your corporate name

Your corporate name must be distinguishable from any other business name already on file with the Iowa Secretary of State. It must include a corporate designator — "Corporation," "Incorporated," "Company," or an abbreviation like "Corp.," "Inc.," or "Co."

Search the Iowa Secretary of State's business name database before you file. If your preferred name is available but you're not ready to file, you can reserve it for 120 days by filing a Name Reservation with the Secretary of State for a small fee.

Step 2: Appoint a registered agent

Every Iowa corporation must have a registered agent — a person or business with a physical Iowa street address who is available during business hours to receive legal documents and official state notices on your behalf.

You can serve as your own registered agent if you have an Iowa address, but many business owners use a registered agent service to keep their personal address off public records and make sure nothing gets missed.

Step 3: File your Articles of Incorporation

File your Articles of Incorporation online through the Iowa Secretary of State's Fast Track Filing System. The state filing fee is $50. Your Articles must include your corporate name, the number of authorized shares, your registered agent's name and address, and the name and address of each incorporator.

Standard online filings typically process in 3–5 business days. Iowa does not require you to publish a notice of incorporation in a newspaper, which keeps the process straightforward compared to some other states.

Step 4: Get an EIN from the IRS

After the state approves your Articles, apply for an Employer Identification Number (EIN) from the IRS. An EIN is your corporation's federal tax ID — you'll need it to open a business bank account, hire employees, and file federal tax returns. The IRS issues EINs at no cost through its online application at irs.gov/ein.

The Iowa Secretary of State does not issue or require an EIN as part of the incorporation process — that step is handled entirely by the IRS.

Step 5: Write your bylaws and issue shares

Iowa does not require you to file corporate bylaws with the state, but you do need them. Bylaws govern how your corporation runs — they cover director and officer roles, meeting procedures, voting rules, and how shares are issued. Keep a signed copy in your corporate records.

Issue shares to your initial shareholders as authorized in your Articles of Incorporation. Hold your organizational meeting to formally adopt the bylaws, elect directors, and appoint officers. Document everything in your corporate minutes — this is the paper trail that shows your corporation is operating as a separate legal entity.

Step 6: Handle ongoing compliance

Iowa corporations file a biennial report with the Secretary of State every 2 years, due April 1 in odd-numbered years. The filing fee is $45. Missing the deadline can put your corporation's good standing at risk, and the state can administratively dissolve a corporation that falls out of compliance.

You'll also need to register with the Iowa Department of Revenue for state tax purposes and check whether your business requires local licenses or permits. A tax professional can help you figure out which Iowa tax registrations apply to your specific business.

Types of Iowa corporations

Most Iowa corporations are formed as C Corporations by default. The type that matters most to you depends on your tax goals and ownership structure.

• C Corporation: the default structure after filing Articles of Incorporation. Profits are taxed at the corporate level, and shareholders pay tax again on dividends. C Corps can have unlimited shareholders and multiple share classes, which makes them the standard choice for businesses planning to raise outside investment.

• S Corporation: a federal tax election, not a separate state filing. To elect S Corp status, file IRS Form 2553 with the IRS within 2 months and 15 days of the start of the tax year you want the election to take effect. All shareholders must sign Form 2553. S Corps pass income and losses through to shareholders' personal returns, avoiding the double taxation of a C Corp — but they're limited to 100 shareholders, all of whom must be U.S. citizens or residents.

• Professional Corporation (PC): required for licensed professionals in Iowa — things like doctors, attorneys, and accountants — who want the liability protection of a corporate structure. Iowa law governs which professions qualify.

• Nonprofit Corporation: formed for charitable, educational, or religious purposes. Nonprofits can apply for federal 501(c)(3) tax-exempt status after incorporating with the state, but the state filing process is separate from the IRS application.