Business Structures and Entity Registration

Why Your Business Structure Choice Matters

Before you make your first sale, open a bank account, or hire anyone, you must decide how your business is legally organized. Your choice of business structure determines who is personally responsible for debts and lawsuits, how profits are taxed, what paperwork you must file, and how much it costs to stay in compliance year after year. Choosing the wrong structure can expose your personal savings, home, and other assets to business creditors. Choosing wisely protects you and sets your business up to grow.

Four structures cover the vast majority of small businesses in the United States: sole proprietorship, general partnership, limited liability company (LLC), and S-corporation. Each is discussed below.

Sole Proprietorship

A sole proprietorship is the simplest and most common structure. One person owns and operates the business. There is no legal separation between the owner and the business — they are the same entity in the eyes of the law.

Formation: No state filing is required to exist as a sole proprietor. If you use a trade name (a name other than your own legal name), most states require you to file a "Doing Business As" (DBA) or fictitious business name registration with your county or state, usually for a modest fee.

Liability: Unlimited personal liability. If the business cannot pay a debt or loses a lawsuit, creditors can come after your personal bank accounts, vehicle, and other assets.

Taxation: All business income and expenses are reported on Schedule C of your personal Form 1040. Profits flow directly to you — this is called pass-through taxation. You also owe self-employment tax on net profit.

Ongoing compliance: Minimal. File your annual personal tax return, renew any local business licenses, and keep your DBA current if required.

General Partnership

A general partnership is formed when two or more people go into business together and share profits, losses, and management. Like a sole proprietorship, it requires no formal state filing to exist, though a written partnership agreement is strongly recommended.

Formation: No mandatory state registration in most states, but a partnership agreement should spell out each partner's contributions, profit shares, and exit terms. A DBA filing may be needed for a trade name.

Liability: Each partner has unlimited personal liability — not just for their own actions, but for the business acts of every other partner. This joint and several liability is a serious risk.

Taxation: The partnership files an informational return (Form 1065) with the IRS, but pays no entity-level tax. Each partner receives a Schedule K-1 showing their share of income or loss, which they report on their personal return. Pass-through taxation applies.

Ongoing compliance: Annual tax filings, renewal of licenses, and maintaining the partnership agreement as circumstances change.

Limited Liability Company (LLC)

The LLC is a hybrid structure created by state law. It combines the liability protection of a corporation with the flexible tax treatment and simpler management of a partnership.

Formation: You file Articles of Organization (sometimes called a Certificate of Formation) with your state's Secretary of State office and pay a filing fee. Most states also require a registered agent — a person or company with a physical in-state address who can receive legal documents on behalf of the business.

Liability: Members (owners) are generally not personally liable for business debts or lawsuits, provided they keep business and personal finances separate and follow basic formalities. This separation is sometimes called the "corporate veil."

Taxation: By default, a single-member LLC is taxed like a sole proprietorship and a multi-member LLC is taxed like a partnership — both pass-through. An LLC may elect to be taxed as an S-corporation if that is advantageous.

Ongoing compliance: Most states require LLCs to file an annual or biennial report and pay a fee to remain in good standing. Some states also impose a franchise tax on LLCs.

S-Corporation

An S-corporation is a regular corporation (formed under state law) that has made a special election with the IRS under Subchapter S of the Internal Revenue Code to be taxed as a pass-through entity.

Formation: File Articles of Incorporation with the Secretary of State, appoint a board of directors, issue stock, and adopt bylaws. Then file IRS Form 2553 to elect S-corp tax status. There are eligibility rules: the corporation can have no more than 100 shareholders, must have only one class of stock, and shareholders must generally be US citizens or residents.

Liability: Shareholders are generally protected from personal liability for business debts, similar to an LLC.

Taxation: The corporation files Form 1120-S. Profits and losses pass through to shareholders in proportion to their stock ownership, reported on Schedule K-1. Importantly, owner-employees who work in the business must pay themselves a "reasonable salary," which is subject to payroll taxes, before taking additional distributions.

Ongoing compliance: Annual state reports, corporate minutes, maintaining a board of directors, payroll tax filings, and the annual Form 1120-S. S-corps carry the highest ongoing compliance burden of the four structures.

Locating Your State's Registration Instructions

Every state's Secretary of State website is the official source for entity registration. You can typically search existing business names to check availability, download official forms (Articles of Organization, Articles of Incorporation), view current filing fees, and find your registered agent requirements. Always use the official state government website — look for a ".gov" domain — to ensure you are reading current, accurate information. Filing fees and form requirements change periodically, so verify details at the time of filing.

Accuracy and Compliance Are Non-Negotiable

Filing incorrect information on state or federal forms can delay your registration, result in fines, or in serious cases constitute fraud. Double-check every entry before submitting. Keep copies of all filed documents in a secure location. Set calendar reminders for annual report due dates so you never fall out of good standing — losing good standing can void your liability protection.