TL;DR: Your business entity structure directly determines how much you pay in self-employment tax, how you pay yourself, and what deductions you can take. An LLC taxed as a sole proprietorship pays 15.3% self-employment tax on all net income. An S-Corp splits income between salary and distributions, potentially saving thousands per year. LUCA helps business owners evaluate whether their current structure still fits their financial picture, and coordinates with CPAs to make sure the transition is handled correctly.
Most small business owners pick their entity structure when they first register their business. They choose an LLC because their attorney recommended it, or because they read online that it was the safest option, and then they never revisit the decision.
That initial choice might have been the right one at the time. But as your revenue grows, your tax situation changes, and what made sense at $50,000 in annual profit might be costing you real money at $150,000.
According to the SBA, there are over 36 million small businesses in the United States, and the vast majority are structured as sole proprietorships or single-member LLCs. Many of them are paying more in taxes than they need to, simply because they haven't re-evaluated their entity type as the business has grown.
First, an important clarification: an LLC and an S-Corp aren't an either/or decision. An LLC is a legal structure. An S-Corp is a tax classification. You can be an LLC that elects to be taxed as an S-Corp, which is actually the most common path for small businesses that make the switch.
Here is where the difference shows up in your wallet:
Default LLC (taxed as a sole proprietorship)
All of your net business income flows to your personal tax return on Schedule C. You pay self-employment tax of 15.3% on every dollar of that income. That 15.3% covers both the employer and employee portions of Social Security (12.4%) and Medicare (2.9%). For the 2026 tax year, the Social Security portion applies to the first $184,500 in earnings.
LLC with S-Corp tax election
You pay yourself a "reasonable salary" through payroll and take the remaining profit as distributions. Payroll taxes (that same 15.3%) only apply to your salary. The distributions are not subject to self-employment tax. The savings come from every dollar you can legitimately classify as a distribution instead of salary.
The math depends on your net income and what qualifies as a reasonable salary, but here are some general benchmarks:
At $75,000 in net profit, with a reasonable salary of $50,000, an S-Corp election saves roughly $3,000 to $3,500 per year in self-employment taxes. After factoring in the additional cost of payroll processing and a more complex tax return, the net savings are slim, but still positive.
At $150,000 in net profit, the savings jump to roughly $8,000 to $10,000 per year after compliance costs. Over five years, that's $40,000 or more.
At $250,000, annual savings can reach $13,000 or higher. At this level, the compliance burden becomes negligible relative to the tax benefit.
The general rule of thumb: S-Corp election starts making financial sense when your net profit consistently exceeds $40,000 to $50,000 after paying yourself a reasonable salary.
This is where a lot of business owners get into trouble. The IRS requires S-Corp owners who perform services for the business to pay themselves a salary that reflects fair market value for the work they do. You cannot pay yourself $20,000 and take $180,000 in distributions just to avoid payroll taxes.
Courts have upheld salary ranges from roughly 35% to 60% of net income depending on the industry, the owner's role, and the profitability of the business. The IRS looks at factors like what comparable businesses pay for similar roles, how much time the owner spends working in the business, and the company's revenue and profit history.
Getting this wrong carries real penalties. If the IRS reclassifies your distributions as wages, you will owe back payroll taxes plus interest and potential penalties. This is one of the most commonly audited areas for S-Corporations.
"Setting reasonable compensation is one of those areas where the savings are real, but so are the risks if it's done incorrectly," says LUCA's advisory team. "It needs to be based on actual data, not a guess."
The Qualified Business Income (QBI) deduction, made permanent under the One Big Beautiful Bill Act signed in 2025, allows eligible pass-through business owners to deduct up to 20% of their qualified business income from their taxable income.
Both LLCs and S-Corps can claim this deduction, but it works slightly differently for each. For an S-Corp, the QBI deduction is calculated on your net income after subtracting your salary. Since your W-2 wages are not QBI-eligible income, a higher salary means a lower QBI deduction.
This creates a balancing act. Paying yourself less increases your QBI deduction but also increases IRS scrutiny on reasonable compensation. Getting the ratio right requires running the numbers specific to your situation, not using a generic formula.
Not every business should be an S-Corp. Here are a few signals that it is worth evaluating:
On the other hand, the added compliance costs and complexity may not be worth it if your income fluctuates significantly, if you are in the early stages of your business, or if your net profit is still under $40,000.
The decision also has implications for payroll setup, bookkeeping requirements, and your overall financial reporting structure, so it is not a change to make in isolation.
If you decide an S-Corp election makes sense, you file IRS Form 2553. The deadline is generally March 15 of the tax year you want the election to take effect, or within 75 days of forming your LLC. Late elections are sometimes accepted with reasonable cause.
Before filing, you should:
This is one of those areas where the conversation with your accountant before making the switch is just as important as the switch itself. The ROI of working with an accountant is clearest in moments like these, where the right advice prevents a costly mistake.
Your business is different today than it was when you filed your articles of organization. Your revenue is different. Your expenses are different. Your goals are different.
Revisiting your entity structure is not something most business owners think to do on their own. But it is one of the highest-impact conversations you can have with your financial team, especially if you are in the $75,000 to $300,000 net income range where the savings are most meaningful.
If you are not sure whether your current structure is still the best fit, that is exactly the kind of question LUCA's team can help you work through. As always, feel free to reach out.
Can I switch from an LLC to an S-Corp without forming a new business?
Yes. An LLC can elect S-Corp tax treatment by filing IRS Form 2553. You keep your LLC as the legal entity but change how it is taxed. You do not need to dissolve your LLC or create a new corporation. The election changes your tax classification, not your legal structure.
How much do I need to be making before an S-Corp election saves me money?
The general threshold is $40,000 to $50,000 in net profit after paying yourself a reasonable salary. Below that, the additional costs of payroll processing and a more complex tax return can eat into or eliminate the savings. At $75,000 and above, the math starts to favor the S-Corp election for most business owners.
What happens if I set my S-Corp salary too low?
The IRS can reclassify your distributions as wages, which means you would owe back payroll taxes plus interest and penalties. Courts have upheld salary levels between roughly 35% and 60% of net income depending on the circumstances. Working with an accountant to set a defensible salary based on industry data is the best way to avoid this risk.
Does my state recognize the S-Corp election?
Most states conform to the federal S-Corp election, but not all. Some states have their own filing requirements, additional taxes, or franchise fees for S-Corps. This is an area where state-specific advice from your CPA matters, especially if you operate in multiple states.
Should I make the switch myself or work with an accountant?
You can technically file Form 2553 on your own, but the decision to elect S-Corp status involves tax projections, reasonable compensation analysis, payroll setup, and state-specific considerations. The cost of getting it wrong, whether through an IRS audit or missed savings, almost always exceeds the cost of professional guidance. LUCA's team regularly helps business owners evaluate and execute this transition as part of a broader financial operations strategy.
