Legal entities are organizations the law treats as their own “person,” separate from the people who own or run them. That separation is what lets a business sign contracts, own property, borrow money, and sue or be sued in its own name, without pulling the owners’ personal assets into every transaction. The type of entity you choose shapes how much personal protection you get, how you are taxed, and how much paperwork you carry year after year.
What the Separation Actually Does for You
When you form a legal entity, you create something the law recognizes as distinct from you. A contract signed on behalf of your LLC belongs to the LLC. A debt the corporation takes on is the corporation’s debt. Property the entity buys is titled in the entity’s name.
That separation runs in both directions. The entity’s creditors generally cannot reach your personal bank account, and your personal creditors generally cannot seize the entity’s assets. The two financial lives stay apart, at least in theory. How well the wall holds depends on the entity type and how carefully you maintain it after formation.
Three practical consequences follow from that separate status:
- Limited liability. If the business is sued or cannot pay its debts, creditors can go after the entity’s assets but not your personal savings or home. Your exposure is capped at what you invested.
- Perpetual existence. A properly formed entity can outlive its founders. Corporations and LLCs continue when ownership changes hands, members leave, or directors are replaced. Contracts, property, and obligations survive the transition.
- Capacity to act in its own name. The entity opens its own bank accounts, applies for its own credit, holds its own leases, and hires its own employees. In a dispute, it sues or gets sued as itself.
The Common Types
Corporation
A corporation is the most structured option. Shareholders own it, a board of directors governs it, and officers run day-to-day operations. Shareholders are shielded from personal liability for corporate debts. The layered governance makes corporations well-suited to businesses that plan to raise outside capital or eventually go public.
The tradeoff is rigidity. Corporations have to hold annual shareholder and board meetings, keep detailed minutes, and follow set procedures for major decisions. Smaller businesses often find the administrative overhead heavier than they want, which is part of why LLCs have taken over.
Limited Liability Company
An LLC combines the liability protection of a corporation with the operational flexibility of a partnership. Owners, called members, are not personally responsible for the company’s debts. Unlike a corporation, an LLC does not need a board, annual meetings, or the same formality.
LLCs are also flexible on taxes. A single-member LLC is a disregarded entity by default, so profits and losses flow directly onto the owner’s personal return. A multi-member LLC is taxed as a partnership by default. Either can instead elect corporate taxation by filing Form 8832 with the IRS.1Internal Revenue Service. Limited Liability Company (LLC)
Partnership
Partnerships come in several forms, and the liability rules differ sharply between them.
In a general partnership, every partner is personally liable for all partnership debts. If the business cannot pay, creditors can come after any partner’s personal assets. There is no shield. General partnerships form automatically when two or more people go into business together, even without a written agreement, which catches some people off guard.
A limited partnership splits the owners. General partners manage the business and carry full personal liability. Limited partners contribute capital, share in profits, and are liable only up to what they invested, provided they stay out of management. This structure shows up often in real estate and investment ventures where passive investors want returns without unlimited risk.
Sole Proprietorship
A sole proprietorship is not a separate legal entity at all. There is no legal line between the business and the person running it.2Internal Revenue Service. Sole Proprietorships Every business debt is your personal debt. Every lawsuit against the business is a lawsuit against you.
Starting one takes no filing. You just begin doing business. The simplicity costs you every bit of personal asset protection, and plenty of owners operate as sole proprietors without realizing it, simply because they never formed an LLC or corporation.
Nonprofit Corporation
A nonprofit corporation is formed for purposes other than generating profit for owners. No part of its income can be distributed to directors or officers. Nonprofits still get limited liability and perpetual existence, like for-profit corporations.
Forming a nonprofit under state law does not by itself make the organization tax-exempt. To qualify for federal exemption under Section 501(c)(3), the organization has to apply to the IRS and show it is organized and operated exclusively for charitable, educational, religious, scientific, or other exempt purposes. It also cannot distribute earnings to private individuals and faces strict limits on political activity.3Internal Revenue Service. Exemption Requirements – 501(c)(3) Organizations
When the Liability Shield Breaks
Limited liability is not bulletproof. Courts can “pierce the corporate veil” and hold owners personally responsible when the separation between owner and entity is more fiction than reality. This happens more often than most business owners expect, and the triggers are ordinary.
The fastest way to lose the shield is to treat the business bank account as your personal checking account. Paying your mortgage from the company account, depositing business revenue into a personal account, or running household expenses through a corporate card all count as commingling funds. Once a court sees that pattern, the argument that you and the entity are separate falls apart.
Courts also look at undercapitalization (so little funding that the entity could never realistically cover its obligations), ignored formalities (no annual meetings, no minutes, no documented decisions), personal use of business assets, and asset stripping when litigation looms. No single factor automatically destroys protection. Courts weigh the total picture. The pattern is consistent: owners who run the entity as a genuine separate business keep their shield; owners who use it as a convenient label do not.
How Each Entity Is Taxed
The entity type you pick determines how the IRS taxes your business income, and the differences are large.
A standard corporation (a C-corporation) pays federal income tax on its profits at the corporate level at a flat 21 percent rate. When it distributes those after-tax profits as dividends, shareholders pay personal income tax on the dividends again. This double taxation is the most commonly cited drawback of the corporate form. On a million dollars in profit, the combined federal bite can approach 40 percent for high-income shareholders.
LLCs, partnerships, and S-corporations avoid double taxation through pass-through treatment. The entity itself does not pay federal income tax. Profits and losses flow through to the owners’ personal returns, where they are taxed once at individual rates.1Internal Revenue Service. Limited Liability Company (LLC) Members of a multi-member LLC each report their share of income even if the money stays in the business and is never distributed.
Corporations and LLCs that meet the requirements can also elect S-corporation status by filing Form 2553. To qualify, the business must be a domestic entity with no more than 100 shareholders (all U.S. citizens or residents) and only one class of stock. The election is popular because it provides pass-through taxation while letting owners who work in the business split income between salary (subject to payroll taxes) and distributions (not subject to payroll taxes). The IRS requires the salary portion to be reasonable for the work performed.
How to Form One
Formation happens at the state level, almost always through the Secretary of State.
Start by picking a name that is not already registered in your state. Most states let you search the business name database online and reserve a name briefly while you prepare documents.
Next, file the formation document. Corporations file Articles of Incorporation. LLCs file Articles of Organization (sometimes called a Certificate of Organization or Certificate of Formation). The filing usually asks for the entity’s name, its purpose, the name and address of a registered agent, and the names of initial directors or members. State filing fees for LLCs generally run from about $50 to $500.
Every LLC and corporation has to designate a registered agent in each state where it does business. The agent receives lawsuits and official notices on the entity’s behalf, needs a physical street address in the state, and has to be available during business hours. You can be your own agent, but many owners hire a commercial service rather than tie themselves to a fixed location.
Once the entity is on file with the state, apply to the IRS for a federal Employer Identification Number. An EIN works like a Social Security number for the business. You need one to open a business bank account, hire employees, and file entity tax returns. The application is free and takes minutes online, but your entity has to be registered with the state first.4Internal Revenue Service. Get an Employer Identification Number
Finally, put the internal rules in writing. Corporations adopt bylaws covering meetings, voting, and officer appointments. LLCs create operating agreements that spell out each member’s ownership percentage, voting rights, profit-sharing, and what happens if a member wants to leave or sell their interest.5U.S. Small Business Administration. Basic Information About Operating Agreements Not every state requires an operating agreement, but skipping one is a mistake. Without a written agreement, disputes default to the state’s LLC statute, which may not match what the owners actually intended. A written agreement is also evidence that you treat the entity as a real separate business if your liability protection is ever challenged.
Keeping the Entity Alive After Formation
Forming an entity is not a one-time event. Most states require LLCs and corporations to file annual or biennial reports confirming that the entity’s basic information is current. Fees range from nothing in some states to several hundred dollars in others. Miss the filings and the entity drops out of good standing; let the delinquency ride and the state can administratively dissolve the business. Reinstatement is usually possible but involves back fees and penalties you would rather avoid.
Staying in good standing also means maintaining a registered agent at all times, keeping licenses and permits current, filing entity tax returns on schedule, and holding whatever meetings your governing documents require. Corporations that skip annual board meetings or fail to record minutes hand ammunition to anyone trying to pierce the veil later.
Operating in More Than One State
If your business operates in states beyond the one where it was formed, you may need to register as a “foreign” entity in each additional state. The process, called foreign qualification, usually involves filing a certificate of authority and paying a fee. What counts as “doing business” varies, but keeping a physical office, having employees, or conducting ongoing transactions in the state typically triggers the requirement. Isolated transactions usually do not. Failing to register where required can bring fines, loss of access to that state’s courts to enforce contracts, and back fees when you catch up.
Federal Beneficial Ownership Reporting
The Corporate Transparency Act originally required most domestic companies to report their beneficial owners to the Financial Crimes Enforcement Network. In March 2025, FinCEN issued an interim final rule that exempts all entities created in the United States from beneficial ownership reporting.6FinCEN. Beneficial Ownership Information Reporting Reporting is now limited to foreign entities registered to do business in a U.S. state or tribal jurisdiction.7FinCEN. FinCEN Removes Beneficial Ownership Reporting Requirements for U.S. Companies and U.S. Persons If you are forming a domestic LLC or corporation, FinCEN beneficial ownership reporting is not currently required.