Most small business owners pick a legal structure in a rush, then spend the next decade overpaying the IRS quietly. The wrong choice between an LLC, S corporation, or C corporation can easily cost a six figure earner $8,000 to $15,000 every year in avoidable tax.

Here is the bottom line many owners never hear from their first accountant. You do not pick an entity for life. You pick a starting point, then you deliberately move between structures as your profit, payroll, and exit plans change. Treating this as a one time decision is how people turn a simple choice into a permanent tax leak.

Quick Answer

If your small business nets under $60,000 per year, a plain LLC usually keeps things simple while giving you liability protection. Between roughly $60,000 and $400,000 of consistent profit, an LLC taxed as an S corporation often delivers the best balance of self employment tax savings and flexibility, as long as you pay yourself a reasonable W 2 salary. Above that range, especially if you plan to reinvest profits or pursue outside investors, a C corporation can make sense despite double taxation. The right answer depends on your profit, how much cash you need personally, and your long term plans.

How Taxes Really Work for LLCs

An LLC, or limited liability company, is a flexible legal structure that by default is treated as a pass through entity for tax purposes. That means the IRS ignores the LLC itself and taxes the owners directly on their share of profit. A single member LLC files on Schedule C with the owner’s Form 1040. A multi member LLC usually files Form 1065 and issues Schedule K 1 to each member.

For a solo owner, every dollar of net profit from the LLC is subject to both income tax and self employment tax. Self employment tax is how you pay Social Security and Medicare on your own. In 2025 the combined rate is 15.3 percent on the first portion of income, then 2.9 percent plus potential additional Medicare tax above certain thresholds. For many new owners that extra 15.3 percent on top of income tax is the painful surprise.

Example. James leaves a W 2 job and starts a consulting LLC in California. In his first full year he nets $80,000 after expenses. As a sole proprietor, he pays income tax based on his bracket plus roughly $12,000 in self employment tax. If he had stayed W 2, his employer would have paid half of that payroll burden behind the scenes.

The clean part of a default LLC is simplicity. You do not need a standalone corporate tax return unless you have multiple members. You avoid the corporate formalities of a C corporation. You can generally distribute profit to yourself without payroll. But the tradeoff is that self employment tax hits every dollar of that net income.

To understand the legal side of partnerships inside an LLC, see IRS Publication 541, which explains how partnership-style pass through taxation works when there are multiple owners.

What Changes When You Elect S Corporation Status

An S corporation is not really a separate kind of company. It is a tax election. You can form a corporation under state law and elect S status, or you can form an LLC and have it taxed as an S corporation by filing Form 2553 with the IRS.

The key shift is how employment taxes apply. In an S corporation, profit is split into two buckets. First, reasonable W 2 wages to owner employees. Second, remaining profit that flows through as a distribution. Wages are subject to payroll tax just like any other W 2 paycheck. Distributions are not subject to self employment tax.

Example. Take James again at $80,000 of net profit. As a straight LLC, he pays self employment tax on all $80,000. If he converts his LLC to be taxed as an S corporation and pays himself a $45,000 salary, only that $45,000 is hit with payroll tax. The remaining $35,000 shows up as pass through S corporation profit not subject to the 15.3 percent self employment rate. That can save him around $5,000 to $6,000 per year, depending on his exact numbers.

This is where IRS enforcement intensity increases. The agency expects owner employees of S corporations to pay themselves reasonable compensation. You cannot set your own salary at $10,000 and take $190,000 of distributions without a strong defendable basis. IRS Publication 15 covers employment tax rules, including how wages and payroll taxes work for small employers.

An S corporation also requires a separate tax return on Form 1120 S. You must run real payroll with withholdings, quarterly filings, and year end W 2 reporting. Many owners work with a firm that can handle bookkeeping and payroll together to keep this clean.

Why Some Owners Still Choose C Corporations

C corporations pay their own income tax directly on Form 1120 at a flat corporate rate. After tax profits may be retained in the company or distributed as dividends. When those dividends hit your personal return, you pay tax again. That is the famous double taxation.

On paper, that sounds like something to avoid. In reality, a C corporation can be a powerful tool for certain business models. For example, if your company expects to raise outside capital, stock options and preferred share structures are usually built on a C corporation. If you intend to scale and sell the company, C corporation status can open the door to potential Section 1202 qualified small business stock treatment, which may allow exclusion of a portion of gain on sale if specific rules are met.

Example. Maria launches a tech product company and plans to keep profits inside the business to fund growth. In years one through three, she only pulls a modest salary of $90,000. The corporation earns $300,000 in profit that it leaves in the company to build inventory and hire engineers. In that phase, she may prefer a C corporation so the business pays tax at the corporate rate and she defers personal tax on undistributed profits.

The tradeoff shows up when the company starts paying big dividends. If the C corporation distributes $200,000 of after tax profit to Maria, she will see that amount taxed again as qualified dividends on her 1040. IRS Publication 542 provides detailed guidance on corporate taxation, including C corporation rules, distributions, and retained earnings.

Comparing Tax Impact at Three Profit Levels

To make the decision concrete, consider a single owner business in California with no other employees and no significant deductions beyond normal operating costs. Look at three profit levels after expenses.

Profit Around $50,000

At this level, simplicity often beats small incremental savings. A default LLC taxed on Schedule C may result in, say, 22 percent federal income tax plus self employment tax. An S corporation could shave some payroll tax if you paid a salary of maybe $30,000 and took $20,000 as distributions, but the added payroll and compliance overhead can eat a large chunk of those savings.

Profit Around $150,000

Here, the S corporation strategy usually becomes compelling. Suppose your net is $150,000. As an LLC, you owe self employment tax on the full amount. As an S corporation, if you pay yourself an $80,000 salary and take $70,000 in distributions, only the salary portion is hit with payroll taxes. The savings on the $70,000 not subject to 15.3 percent self employment tax can exceed $10,000, even after payroll service costs.

Profit Above $500,000

At higher profit levels, the conversation shifts. An S corporation still helps reduce payroll taxes relative to a straight LLC, but other issues emerge. If you plan to sell the business, raise capital, or keep large amounts of cash inside the entity, a C corporation may reduce personal year to year taxes despite double taxation at distribution time. The decision becomes more about long term strategy than annual savings.

Red Flag Alert. Common Entity Mistakes That Trigger IRS Pain

One of the fastest ways to attract unwelcome attention is to exploit an S corporation election without respecting payroll rules. The IRS has specifically warned about owner employees paying themselves unreasonably low wages to dodge employment tax. If audited, the agency can reclassify distributions as wages and assess back payroll tax plus penalties and interest.

Another frequent problem is using a C corporation just because someone said it is more professional. For a solo consultant or local service business that wants to take almost all profit out each year, the C corporation structure can create more tax, not less, especially once qualified dividend income stacks on top of salary.

Documentation matters. If you are an S corporation owner, keep board minutes or simple internal memos explaining how you arrived at your compensation level. Reference factors such as industry norms, time spent, your role, and what you would have to pay someone else to do your job. When in doubt, lean toward a salary you can defend in front of an IRS agent instead of chasing the absolute lowest number.

How Your Personal Goals Should Drive This Choice

The right entity answer changes when your personal objectives change. Ask three questions before you lock in anything.

How Much Cash Do You Need From the Business?

If you need almost every dollar of profit to cover personal living costs, the more complex C corporation dynamics usually do not help. You will pull out the money as wages and dividends anyway, so double taxation erodes benefits. In that case, a well structured S corporation or even a straightforward LLC can align better with reality.

Are You Building a Lifestyle Practice or a Scalable Company?

A freelance designer who wants to maintain a lean practice with $200,000 of profit has very different needs than a founder intending to raise millions and hire a large team. The first person might win by keeping an LLC taxed as an S corporation, focusing on self employment tax savings and clean pass through reporting. The second should think hard about C corporation implications, equity terms, and long range stock planning from day one.

Do You Expect to Sell the Business?

Entity choice has big implications at exit. Selling shares of a C corporation that qualifies as Section 1202 stock can create powerful exclusions on gain if you held the stock long enough and meet the requirements. Selling an S corporation often involves asset sales that push more tax to the seller, depending on deal structure.

Because these scenarios are complex, many owners work with advisors who focus specifically on business owners rather than generic individual tax prep. Those firms can align entity structure, payroll, and exit strategy over a multi year plan, not just during spring filing.

KDA Case Study. S Corporation Pivot for a Solo Consultant

A California based marketing consultant, earning fluctuating income on 1099 forms, came to KDA after three years of filing as a sole proprietor. In the year before we met her, she reported $165,000 of net Schedule C profit. Her preparer had not mentioned any entity planning. Between federal and California income tax plus self employment tax, she paid over $55,000 to the IRS and state.

We reworked her structure by forming an LLC and electing S corporation status effective at the start of the next tax year. We set her on a $90,000 W 2 salary, aligned with compensation surveys for senior marketing roles in her region, and treated the remaining $75,000 of expected profit as S corporation distributions.

In the first year of the new setup, she landed slightly above projections at $180,000 of net income before salary. Payroll taxes applied only to her $90,000 wages. The $90,000 of distributions flowed through free of self employment tax. After paying for payroll services and the incremental cost of the S corporation return, her net savings on employment taxes alone were just over $11,000 compared with staying a straight LLC sole proprietor. Her total fee to KDA for structuring, ongoing advisory, and filings was about $3,800, giving her a first year after tax ROI near three to one.

Ready to see how we can help you? Explore more success stories on our case studies page to discover proven strategies that have saved our clients thousands in taxes.

Will This Trigger an Audit?

Used correctly, none of these entity options is inherently risky. The audit risk comes from mismatches between your paperwork and reality. An S corporation that shows owners working full time yet reporting salaries far below norms will stand out. A C corporation with no real business activity but large losses year after year can raise questions about whether it is a legitimate enterprise or a hobby.

To stay off the radar, make sure your bookkeeping is clean, your payroll numbers are reasonable, and you file every required return on time. If you change entity status, such as moving from LLC to S corporation, keep copies of your Form 2553 acceptance letter and any state level elections with your permanent records. According to the IRS, good documentation and consistent reporting are among the strongest audit shields a business owner can have.

Fast Tax Fact. Federal vs California Layers

For California owners, entity choice also interacts with state specific rules. For example, LLCs owe an annual LLC fee based on gross receipts once they cross certain thresholds, plus an $800 minimum tax. S corporations pay a 1.5 percent California tax on net income with their own minimum tax. C corporations face the standard corporate tax rate.

That means a structure that looks optimal at the federal level can shift once you layer in California. A $300,000 profit business might still want an S corporation for federal self employment tax savings, but the combined effect of the 1.5 percent California S corporation tax, payroll costs, and LLC gross receipts fees must be modeled together. A detailed pro forma can show whether you are actually ahead after all state and federal costs.

This information is current as of 7/13/2026. Tax laws change frequently. Verify updates with the IRS or California Franchise Tax Board if you are reading this in a later year.

What If Your Income Jumps or Drops Suddenly?

Life does not follow clean, predictable profit curves. A business that nets $70,000 one year can spike to $250,000 the next because of a big contract, then fall back toward $120,000. Your entity strategy should flex with those swings.

If your income jumps well above the level you planned for when you set your S corporation salary, revisit that salary. You may need to increase it midyear to stay aligned with the reasonable compensation standard. If profit collapses below expectations, you might scale back wages to avoid paying more payroll tax than necessary, always staying within a defendable range.

For C corporations experiencing volatility, the decision is usually about how much profit to retain versus distribute. In a down year, you may choose to keep earnings inside the company to rebuild reserves and delay dividends until your personal bracket is more favorable.

How to Decide Between LLC, S Corporation, and C Corporation

Instead of treating this as a one time fork in the road, approach it with three stages.

Stage One. Early Years Under $75,000 of Profit

In the starting phase, focus on liability protection and bookkeeping discipline. A basic LLC is often enough. Get your separate bank account, track every expense, and build habits. At this level, the incremental savings from an S corporation may not justify the complexity unless your profit stabilizes higher quickly.

Stage Two. Scaling Years Between $75,000 and $400,000 of Profit

Once your net profit sits comfortably above $75,000 for more than a year or two, an S corporation deserves serious attention. The potential self employment tax savings can fund retirement contributions, better insurance, or reinvestment in the business. The catch is that you must be willing to run payroll correctly and maintain clean records.

Stage Three. High Growth or Exit Focused Years

At higher income levels or when investors enter the picture, revisit whether a C corporation suits your goals. This is especially relevant for tech, manufacturing, or any business where equity plays a central role. Planning around potential stock sale treatment, stock options, and exit scenarios becomes as important as shaving this year’s tax bill.

Key Takeaway

There is no universal right answer between LLC, S corporation, and C corporation. There is only a right answer for this phase of your business, given your profit, cash needs, and long term plans. The biggest mistake is staying in the wrong structure out of inertia while thousands leak out each year in avoidable tax.

Book Your Tax Strategy Session

If you are unsure whether your current entity setup is quietly costing you five figures a year in extra tax, it is time to run the numbers properly. Book a personalized consultation with our strategy team and we will map out which structure fits your profit level, risk tolerance, and growth plans, with concrete dollar comparisons. Click here to book your consultation now.

The IRS is not hiding these choices. Most owners simply were never shown how to compare them in real dollars.