This is educational content, not tax, legal, or financial advice. Tax law and contribution limits change annually and your filing status, state, and other income all change the answer. Consult a CPA or a licensed advisor before acting on any number here.
Sole proprietor vs LLC vs S corp: the short answer
A sole proprietorship costs $0 to start, an LLC adds liability protection for less than $300 to register in most cases, and an S corp election paying a $60,000 salary saves about $4,950 a year in payroll tax at $100,000 of profit, for freelancers pricing from 150,000+ Bureau of Labor Statistics wage records across 391 US metro areas.
Liability, tax, and paperwork separate the three. A sole proprietorship and a single-member LLC pay the same federal tax by default; an S corporation is a tax election rather than a separate kind of business, and it changes how the owner gets paid. The table shows what each structure costs in tax as profit grows.
Self-employment and payroll tax by structure and income
Self-employment or payroll tax by business structure, at an illustrative $60,000 S corp salary (2026)
| Net profit | Difference |
|---|---|
| $60,000 | S corp costs $50 more |
| $80,000 | $2,124 less with S corp |
| $100,000 | $4,950 less with S corp |
WhatShouldICharge calculation: self-employment tax at 15.3% of 92.35% of profit, with the Social Security portion capped at $184,500 in 2026; S corp payroll tax at 15.3% of salary, with the rest of profit taken as distributions. Excludes income tax effects and the cost of payroll service, bookkeeping, and an extra tax return. The salary is illustrative: a reasonable salary follows market pay for the work, and at an $80,000 salary the saving at $100,000 of profit falls to $1,890.
See what payroll and tax-prep costs do to your margin in the profit margin calculator
The S corp difference comes from how the owner is paid. A sole proprietor or single-member LLC owes self-employment tax on nearly all profit, while an S corp owner pays payroll tax on a salary and takes the rest as distributions. At $100,000 of profit and a $60,000 salary, that's $9,180 of payroll tax against $14,130 of self-employment tax.
The salary can't be set low to chase the saving. The IRS requires S corporation officers to receive reasonable compensation before non-wage distributions, according to IRS guidance on S corporation compensation. At low profit the salary absorbs nearly everything and the saving disappears, as the $60,000 row shows. Tax is one of four differences, and liability comes before it.
Liability protection: what an LLC shields
An LLC protects an owner's personal assets such as a car, house, and savings in most instances, while a sole proprietor can be held personally liable for the business's debts and obligations, according to the SBA's guide to choosing a business structure. A single-member LLC gives 1 owner that protection for less than $300 in most cases.
The shield has limits. Personal guarantees on loans or leases can still reach personal assets, and an owner can still be sued personally over their own professional errors, which is why professional liability insurance stays on the overhead list even inside an LLC. Mixing business and personal money weakens the separation, so an LLC needs its own bank account.
For a freelance designer, writer, or consultant with modest client exposure, the practical risk is a contract dispute or an unpaid bill. For work that touches client systems, money, or health, the exposure is larger. Setup cost and paperwork are the price of that protection.
Setup cost and paperwork for each structure
A sole proprietorship needs no state registration when the owner does business under their legal name, while an LLC or corporation registers in each state where it does business, for a total cost below $300 in most cases, according to the SBA's business registration guide.
An S corporation adds a federal step on top of state formation. A corporation or eligible LLC elects S corp status on Form 2553, signed by all shareholders, and must have no more than 100 shareholders and one class of stock, according to the IRS S corporation page.
Ongoing paperwork separates the structures more than setup does. A sole proprietor files Schedule C with a personal return. An S corporation runs payroll for its owner and files its own Form 1120-S every year, and those running costs are why the tax table's savings aren't the whole answer.
At what income an S corp election starts to pay
An S corp election starts to pay once the payroll tax it saves exceeds the cost of running payroll and a separate return. At a $60,000 salary, the gross saving is $2,124 at $80,000 of profit and $4,950 at $100,000, before those running costs. At an $80,000 salary, the saving at $100,000 of profit falls to $1,890.
The salary moves the break-even more than profit does. A higher reasonable salary shrinks the saving at every profit level, and the IRS considers training, duties, time devoted to the business, and what comparable businesses pay when judging what's reasonable. A freelancer whose market salary is close to total profit has little left to take as distributions.
Work the math with real numbers before electing: expected profit, a defensible salary, and quoted annual costs for payroll and tax preparation. The profit margin calculator shows the business side, the page on how the floor rate works shows how tax enters the rate, and structure is one line in what freelancing actually costs. A CPA should confirm the salary before any election.
You have the formula. Now run your numbers.
Run the same math on your own figures with the Profit Margin Calculator.
Profit Margin CalculatorWhat business structure means for the clients who hire you
Clients paying a freelancer withhold no tax and pay $0 in employer payroll tax whatever the structure, according to IRS guidance on independent contractors. A client contracting with an LLC signs with a business entity rather than an individual, and an LLC name on a proposal reads as an established business.
Structure doesn't change what a client should pay. A freelance rate carries tax, benefits, and overhead whether a sole proprietor or an S corporation bills it, including the kind of benefits that make up 30.0% of private-industry compensation.
The costs of the structure itself are what freelancers miss when they choose one.
What nobody tells you about choosing a business structure
An LLC's real cost is the annual upkeep, not the filing fee. State reports and fees continue every 12 months the LLC exists, and a lapsed filing can cost the good standing that an LLC formed for less than $300 was meant to protect.
An S corp election is hard to unwind cleanly. Revoking it changes how the owner is paid mid-stream and limits when the election can be made again, so it belongs after a year of steady profit rather than in the first month of freelancing.
The third is expecting structure to fix pricing. A structure moves a few thousand dollars of tax, while a rate that's $20 an hour too low costs $22,000 a year across 1,100 billable hours. The questions below cover what freelancers ask most about structure.
Frequently asked questions
Is it better to have an LLC or a sole proprietor?
An LLC is better when liability protection matters, since it shields personal assets from most business debts for less than $300 to register in most cases. A sole proprietorship is simpler and costs $0 to start, and both pay the same federal tax by default.
What is the biggest disadvantage of an LLC?
Ongoing state fees and filings with no federal tax saving by default. A single-member LLC pays the same 15.3% self-employment tax as a sole proprietor unless it elects S corporation status.
At what income is an LLC worth it?
An LLC's value comes from liability protection, not income, because it pays the same federal tax as a sole proprietorship by default. The S corp election is the income decision: at a $60,000 salary it saves $2,124 in payroll tax at $80,000 of profit and $4,950 at $100,000, before running costs.
What type of business is best for sole proprietorship?
Low-risk service work with modest client exposure, such as writing, design, or consulting, where a sole proprietorship's $0 setup and simple Schedule C filing outweigh the lack of liability protection.
What are the disadvantages of being a sole proprietor?
Personal liability for business debts and obligations, according to the SBA, and self-employment tax of 15.3% on 92.35% of all profit, with no option to split income into a salary and distributions.
Smith Shah
Builder of WhatShouldICharge · SEO & Growth Leader
Smith Shah is Group Head of SEO, Content & Growth at Schbang, one of India's largest independent digital agencies. He built and leads a 30-member team spanning SEO, content strategy, CRO, analytics, and experimentation — driving organic growth for brands including UltraTech Cement, Swiggy, Motorola, Jio Business, and Tata Communications. He teaches pricing, SEO, and growth strategy at institutions including MastersUnion, KC College, HubSpot Academy, and upGrad. WhatShouldICharge is built from 7 years of watching freelancers and agencies undercharge because they lacked the data to price with confidence.
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