Business · 5 min read · Updated November 10, 2026

Choosing a business entity: sole proprietor, LLC, S corp or C corp

Illustrative examples, education not advice.

In plain words

Every business has a legal form, whether you choose one or not. The form affects three things:

Liability: whether your personal home and savings are exposed to business debts and lawsuits.
Taxes: whether the business pays its own tax or passes profit to you.
Paperwork and flexibility: how much admin you take on, and how easily you can add partners or sell.

Note that legal form and tax treatment are separate. An LLC is a legal form under state law. For federal tax, an LLC can be taxed as a sole proprietorship, a partnership, an S corporation or a C corporation.

The main choices

	Sole proprietor	LLC (default tax)	S corporation	C corporation
Liability protection	None	Generally yes	Generally yes	Generally yes
Who pays income tax	You, on all profit	Owners, on their share	Owners, on their share	The company (21%), then owners on dividends
Self-employment tax	On all net earnings	On most active owners’ earnings	Only on owner salary	Only on salary
Owner pay	Draws	Draws or guaranteed payments	Reasonable salary plus distributions	Salary and dividends
Owners allowed	One	Any number	Up to 100, US individuals and certain trusts, one class of stock	Any
Paperwork	Lowest	Low to moderate	Moderate, payroll required	Highest

The 2026 tax details that matter

Self-employment tax is 15.3% on net earnings up to the Social Security wage base of $184,500 for 2026, plus 2.9% Medicare above that, and an extra 0.9% Medicare tax on high earners.
The qualified business income (QBI) deduction lets many owners of pass-through businesses deduct up to 20% of their qualified business income. The 2025 tax law made it permanent. For 2026, limits start to phase in above taxable income of $201,750 (single) or $403,500 (married filing jointly).
C corporations pay a flat 21% federal rate. Owners may pay tax again on dividends. Stock in certain C corporations can qualify for a large capital gains exclusion when sold, under rules the 2025 law expanded for stock issued after July 4, 2025.

How it helps real people

Protects family wealth. Liability protection can keep a business lawsuit away from your house, if you keep business and personal affairs separate.
Can lower taxes. An S corporation, for example, can reduce self-employment tax once profits are high enough.
Prepares for growth. Adding partners, investors or a buy-sell agreement is easier with the right structure.
Makes succession possible. Entities with clear ownership interests are easier to pass on or sell.

A worked example

Illustrative. Tara, 41, is fictional and runs a bookkeeping practice as a sole proprietor. Net profit is $160,000.

As a sole proprietor or single-member LLC: self-employment tax applies to nearly all net earnings, roughly $22,600 (illustrative).
As an LLC taxed as an S corp: she pays herself a reasonable salary of, say, $95,000, with payroll tax of about $14,500 split between her and the company. The remaining profit passes through without self-employment tax. Payroll, an extra tax return and state fees might cost $2,000 to $4,000 a year.

Her estimated saving is several thousand dollars a year after costs. But a lower salary also means lower Social Security credits and less room for salary-based retirement contributions. Her accountant runs the numbers for her state before she elects.

These numbers are illustrative only and not a tax calculation.

Who it’s for

Sole proprietor: testing an idea, low risk, low profit.
LLC: most small businesses that want liability protection and flexibility.
S corp election: steady profits well above a reasonable salary for the owner’s role.
C corp: businesses planning to raise outside investment, reinvest heavily, or seek a future sale where special stock rules may apply.

Who it’s not for

An S corp is often not worth it at low profit, because payroll and filing costs can wipe out the savings.
A C corp may not suit a small business that pays out most profit to owners, because of possible double tax.
An LLC alone does not protect you from your own negligence or from loans you personally guarantee.

Risks and trade-offs

Reasonable salary rules. The IRS expects S corp owners who work in the business to take a fair wage. Too low a salary can draw scrutiny.
State taxes and fees vary a lot and can change the math.
Switching later can have tax costs, especially out of a C corporation.
Liability shields can be pierced if you mix personal and business money.
QBI limits depend on income, wages paid and the type of business.

Common mistakes

Choosing by what a friend did. The right answer depends on your profit, state and goals.
Mixing accounts. Use a separate business bank account and card.
Electing S corp too early or setting an unrealistically low salary.
No operating or shareholder agreement for businesses with more than one owner.
Forgetting insurance. An entity limits some liability; it does not replace business insurance.

FAQs

Can I change my entity later?

Usually yes, though some changes have tax consequences. An LLC can often elect S corp tax status without forming a new company.

Does an LLC protect me from everything?

No. It generally protects you from business debts and claims against the company, not from your own professional mistakes or debts you personally guaranteed.

When does an S corp make sense?

Often when profit is comfortably above what a reasonable salary for your role would be. A tax professional can estimate the break-even point for your state.

Does entity choice affect life insurance planning?

Yes. It shapes how buy-sell agreements, key person cover and executive bonus plans are set up and taxed.

Your next step

Take the Wealth Strategy Score (/score/) to see how your business structure fits with your personal plan.

Education, not advice. Examples are illustrative. VeraLife.ai is not a registered investment adviser, broker-dealer or insurance agency.