How to Start a C Corporation

Decide Whether a C Corporation Fits Your Plans

A C corporation suits a business that plans to raise outside investment, issue employee stock options, or eventually go public, since it allows unlimited shareholders and multiple classes of stock. It is not the simplest or cheapest structure to maintain: it requires bylaws, a board of directors, and more formal recordkeeping than an LLC or sole proprietorship typically needs. If your business won't raise outside capital or issue complex equity, an LLC often serves the same liability protection with less ongoing paperwork.

Choose and Check Your Name

Your corporation's name must meet your state's naming rules, generally including a designator like "Inc." or "Corporation," and must be distinguishable from other registered entities in that state. Search your state's business entity database before filing, since a name conflict is a common reason a filing is rejected after you've already paid the fee. If you plan to build a brand around the name, also search the USPTO's trademark database separately, since state approval doesn't check for trademark conflicts.

Appoint a Registered Agent

Every state requires a corporation to maintain a registered agent, an individual or company with a physical address in that state, available to accept legal notices and official state mail on the corporation's behalf. You can serve as your own registered agent if you have a qualifying address, or pay a registered agent service, commonly billed annually.

File Articles of Incorporation

File Articles of Incorporation with your state's Secretary of State or equivalent agency. This document typically asks for the corporation's name, registered agent, number of authorized shares, and incorporator information. Filing fees vary significantly by state, generally from around $35 to $500, similar to the range seen for LLC formation fees. Some states offer online filing with fast confirmation; others take longer or offer expedited processing for an extra fee.

Adopt Bylaws

Bylaws are the corporation's internal rulebook: they set out how directors are elected, how meetings are called and conducted, and officers' roles and authority. Bylaws aren't typically filed with the state, but banks and investors commonly expect to see them, and they're one of the documents that separates a corporation's formalities from a simpler LLC's typically lighter-weight operating agreement.

Hold an Organizational Meeting

After filing, the initial directors (or incorporator, if directors haven't been named yet) hold an organizational meeting to adopt the bylaws, appoint officers, authorize issuing stock, and handle other startup business like opening a bank account and adopting a stock certificate form. Keep minutes of this meeting as part of the corporation's permanent records, since courts and investors look at this kind of documentation when evaluating whether a corporation has been run as a genuinely separate entity.

Issue Stock to Founders

Issue shares to the founders in exchange for cash, property, or services, documented with a stock purchase agreement and recorded in a stock ledger. How many shares to authorize and issue, and at what price, affects future fundraising and equity splits, so this is worth planning carefully, including with legal or tax advice, before finalizing it.

Get an EIN and Register for Taxes

Apply for a free Employer Identification Number directly from the IRS once the state approves your Articles of Incorporation. From there, register with your state for any required state corporate income tax, sales tax if you sell taxable goods or services, and employer registrations if you'll have employees.

Understand C Corporation Taxation

A C corporation pays a flat 21% federal corporate income tax on its profits. If the corporation distributes profits to shareholders as dividends, those dividends are taxed again on the shareholders' personal returns, a structure commonly called double taxation. This differs from an LLC or S corporation, where profits generally pass through to the owners' personal returns without a separate entity-level tax. Many startups accept double taxation as a tradeoff for the C corporation's flexibility in raising capital, while a smaller business with no investment plans often finds an LLC's pass-through taxation more favorable.

Plan for Ongoing Corporate Formalities

A C corporation typically must hold an annual shareholder meeting and an annual board meeting, keep minutes, and file an annual report with the state, with requirements and fees varying by state. Treat these as ongoing obligations from day one, not optional formalities, since neglecting them can undermine the very liability protection the corporate structure is meant to provide.

Double Taxation Isn't Always the Deciding Factor

A C corporation's 21% flat tax rate can actually be lower than an individual's marginal tax rate on pass-through income in some cases, even accounting for a second layer of tax on distributed dividends, particularly if the corporation retains earnings rather than distributing them. Run the numbers for your specific situation with a tax professional rather than assuming double taxation always makes a C corporation the worse choice.

An LLC Can Elect C Corporation Tax Treatment Too

If you want C corporation taxation without the full corporate governance structure, an LLC can elect to be taxed as a corporation using IRS Form 8832, without converting its state-level legal structure. This is a narrower option than forming a corporation outright and comes with its own tradeoffs worth discussing with a tax professional.

Stock Issuance Decisions Are Hard to Undo Cleanly

How you split equity among founders at formation sets a precedent that's often difficult and sometimes costly to unwind later, especially once outside investors are involved. Get legal input on your cap table and vesting terms before issuing stock, not after a disagreement arises.

Corporate Formalities Protect Your Liability Shield

Failing to hold required meetings, keep minutes, or maintain separate finances is one of the more common ways a court can disregard a corporation's liability protection in litigation. Build a simple annual compliance calendar from the start rather than treating these as optional.

This Is Not Legal or Tax Advice

Which structure, tax election, and equity split fit your specific business depends on your fundraising plans, number of founders, and expected profitability. Talk to a tax professional and a startup attorney before finalizing your corporation's formation documents and stock issuance.