How to Choose Between an S-Corp, LLC, and C-Corp for Your US Business
Entity selection drives everything from US tax treatment to investor optics. Here's how to think through the choice for your specific situation.
Why the choice matters more than you think
Entity selection is not a checkbox. It determines federal tax treatment, state tax exposure, the way profits and losses flow through to owners, your ability to raise venture or private equity, your exposure to self-employment tax, and what happens when you bring on a co-founder or sell the business. The wrong choice isn't fatal — but re-doing it later usually costs real money.
Sole proprietorship & single-member LLC
Default for a solo founder. Pass-through taxation, simple Schedule C reporting, no separate entity return. Best for: a single owner, low profit, no near-term plans to take on investors, and no meaningful liability risk. As soon as you have significant net income, the S-corp election starts to make sense.
LLC taxed as a partnership (multi-member)
Default for two or more founders forming an LLC. Pass-through to each member's K-1. Flexible profit/loss allocation. Best for: US-only businesses with 2-4 founders, no VC plans, owner-operator service businesses, and family-owned operating companies.
S-Corporation election
S-Corp is a tax ELECTION, not a separate entity. It lets the LLC or corporation pay a smaller salary to the owner and distribute the remaining profit as a distribution not subject to self-employment tax. Savings can be substantial above ~$80K of net income. The catch: the IRS requires 'reasonable compensation' for owner-employees, S-Corps have restrictions on stock classes and ownership, and converting in or out has tax consequences. Best for: profitable operating businesses with 1-2 owners, no VC plans, and US-only operations.
C-Corporation (Delaware or another state)
Required if you plan to raise venture capital, issue preferred stock, or operate a high-growth US startup. C-Corps pay federal corporate tax (21%) on profits, with a second layer of tax on dividends or sale proceeds (the dreaded 'double taxation' — though QSBS can eliminate this on sale). Best for: venture-backed US startups, founders planning to take VC, US businesses optimizing for an eventual sale or IPO.
Decision framework
Ask four questions: (1) Are you taking VC within 24 months? If yes, C-Corp from day one. (2) Is your net income above $80K and stable? If yes, S-Corp election usually wins. (3) Are there multiple owners with different economic arrangements? If yes, LLC with a tailored operating agreement. (4) Do you have significant liability exposure? If yes, corporate veil protection matters more than tax optimization.
How TrueBookUS helps
We work with your attorney and tax counsel to model the after-tax cash flow of each scenario over a 3-5 year horizon, then implement the chosen structure with clean books, payroll setup, and state registrations from day one.
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