The S corp tax savings conversation is everywhere right now, and most of it is incomplete in ways that will cost you money.
Here is what is actually happening when someone tells you to "elect S corp status and pay yourself a salary": you are splitting your business income into two buckets. The first bucket is your W-2 salary, which is subject to payroll taxes on both the employer and employee side, totaling 15.3% on the first $176,100 and 2.9% above that. The second bucket is a distribution, which passes through to your personal return and is not subject to self-employment tax at all. The gap between those two tax treatments is where the savings live. The question is whether you are capturing that gap legally, consistently, and in a way that would survive an IRS audit.
Most people are not. And the ones who aren't don't find out until it's expensive.
The S Corp Tax Savings Mechanism Is Real, But It Only Works If You Set It Up Correctly
An S corporation is a tax election, not a business entity. You file Form 2553 to make the election after forming a corporation or, in some states, converting an LLC. The election is governed by IRC § 1362(a), and once made, it causes the corporation's income, losses, deductions, and credits to pass through to shareholders and be reported on their individual returns. The corporation itself pays no federal income tax at the entity level. What it does pay, and what most people ignore, is the cost of running the structure properly.
California is a useful example of what "properly" actually costs. The state charges S corporations a 1.5% franchise tax on net income, with a minimum of $800 annually. Nobody mentions this when they are selling you the S corp idea. If your California S corp generates $500,000 in net income, you owe $7,500 to the Franchise Tax Board before you have paid a dollar of federal tax. That number is not devastating, but it is real, and it belongs in your analysis before you elect.
The election itself has timing requirements that catch people off guard. To be treated as an S corp for the current tax year, you must file Form 2553 by March 15 of that year, or within 75 days of formation if you are a new entity. Miss that window and you wait another year. The IRS does allow late elections under certain circumstances, but you need a qualifying reason and the paperwork to support it. "I didn't know about the deadline" is not a qualifying reason.
The corporate formalities requirement is the part that makes this structure more demanding than a standard LLC. You need a separate bank account, separate bookkeeping, payroll processed through a legitimate payroll system, and documented shareholder meetings. These are not suggestions. They are the factual foundation that distinguishes a real S corp from a paper election that a revenue agent will dismantle in an audit. If you are not maintaining those records, you do not have an S corp strategy. You have a tax position that hasn't been challenged yet.
The annual filing deadline for Form 1120-S is March 16, 2026 for the 2025 tax year. If you need more time, Form 7004 extends that to September 15, 2026. Filing late without an extension costs $255 per shareholder per month. For a single-shareholder S corp, that is manageable. For one with multiple investors or family members on the cap table, it adds up faster than people expect.
The Reasonable Salary Requirement Is Where Most People Destroy Their Own Strategy
The IRS knows exactly what you are trying to do with your S corp distribution. They have known since 1974, when the Tax Court first addressed the issue, and they have been auditing it aggressively ever since. The requirement is this: if you are a shareholder-employee who provides services to the corporation, you must pay yourself a reasonable salary before taking any distributions. The salary must reflect what you would pay someone else to perform your role in the open market.
"Reasonable" is deliberately undefined in the Code, which means the IRS has significant latitude to challenge your number. The factors they consider include your experience and qualifications, the duties you perform, the time you devote to the business, comparable compensation in similar businesses, and the overall financial condition of the company. If you are a physician running a medical practice through an S corp and paying yourself $60,000 while taking $400,000 in distributions, that salary will not survive scrutiny. The IRS will reclassify the distributions as wages, assess payroll taxes on the reclassified amount, add interest, and assess penalties. The savings you thought you captured will reverse, and then some.
The mistake people make is treating the salary as a number to minimize. The correct approach is to treat it as a number to defend. Document your role. Pull compensation surveys for your industry. Have your CPA or attorney sign off on the methodology. If the IRS ever asks, you want a file that shows a deliberate, defensible analysis, not a number someone chose because it sounded low enough to save money.
There is also a secondary issue that the S corp versus sole proprietorship tax savings comparison rarely addresses: the cost of payroll. When you pay yourself a salary through an S corp, you are responsible for employer payroll taxes, which means you are paying 7.65% on top of your salary as the employer, in addition to the 7.65% withheld from your wages as the employee. You also need payroll software or a payroll service, quarterly 941 filings, and annual W-2 and W-3 filings. These costs are real, and they belong in your break-even calculation. Most S corp calculators do not include them.
What Actual S Corp Tax Savings Look Like in Practice
The math is clearest when you run a specific scenario. Say your S corp generates $150,000 in net profit. You pay yourself a reasonable salary of $90,000 and take $60,000 as a distribution. Payroll taxes apply to the $90,000 salary. The $60,000 distribution passes through to your personal return and is taxed at ordinary income rates, but it is not subject to self-employment tax. At a combined employer and employee rate of 15.3%, that $60,000 exemption saves you roughly $9,180 in payroll taxes, less the cost of running payroll and filing the corporate return.
That is a real number. It is also not the whole picture. The S corp versus LLC tax savings comparison depends heavily on your state, your income level, your industry, and whether you qualify for the IRC § 199A deduction. Under the One Big Beautiful Bill Act, the 20% qualified business income deduction for pass-through entities has been made permanent. If your business qualifies, you may be able to deduct 20% of your qualified business income from your taxable income at the individual level, which is separate from and additive to the payroll tax savings from the S corp structure. A single-member LLC taxed as a sole proprietorship can also claim the § 199A deduction, which is why the comparison between structures is never as simple as the online calculators suggest.
The threshold question for whether an S corp makes sense is generally somewhere between $50,000 and $80,000 in net profit, after accounting for the cost of compliance. Below that range, the administrative burden typically exceeds the tax benefit. Above it, the math shifts meaningfully in your favor, particularly as income grows into the range where self-employment tax on the full amount would otherwise be substantial.
The Deductions That Compound Your S Corp Advantage in 2026
The salary-versus-distribution split is the headline, but it is not the only place where an S corp creates tax efficiency. The structure also positions you to run several deductions through the entity that are harder to access or less valuable in a sole proprietorship or single-member LLC.
Health insurance premiums for greater-than-2% shareholders are deductible by the S corp and must be included in the shareholder's W-2 wages, but the shareholder can then deduct them on their personal return under IRC § 162(l). The net effect is a deduction without payroll tax exposure, because health insurance premiums added to a greater-than-2% shareholder's W-2 are not subject to FICA. This is a meaningful benefit that requires correct payroll treatment to capture, and most payroll services will not set it up correctly unless you tell them exactly what you need.
HSA contributions compound this further. In 2026, the HSA contribution limit is $4,400 for self-only coverage and $8,750 for family coverage, with an additional $1,000 catch-up contribution available if you are 55 or older. If you are enrolled in a qualifying high-deductible health plan, these contributions reduce your taxable income dollar for dollar. The S corp can contribute to your HSA on your behalf, or you can contribute personally and deduct it on your return. Either way, the deduction is available, and it stacks on top of the health insurance deduction.
Retirement plan contributions are where the numbers start to look genuinely significant. As an S corp shareholder-employee, you can establish a Solo 401(k) and contribute up to $23,500 in employee deferrals in 2026, plus a 25% employer contribution based on your W-2 compensation. On a $90,000 salary, that employer contribution can be as high as $22,500, bringing your total retirement contribution to $46,000 before catch-up provisions. That $46,000 reduces your taxable income at the individual level. It does not reduce payroll taxes, because the contributions are made after wages are paid, but the income tax savings at your marginal rate are substantial.
Starting in 2026, the Section 163(j) interest expense limitation reverts to an EBITDA-based calculation rather than EBIT, which means depreciation and amortization are added back before the 30% cap is applied. For S corps carrying business debt, this change increases the amount of interest expense that is currently deductible. If your business has financed equipment, real estate, or other assets, this is worth revisiting with your tax advisor before the 2026 return is filed.
The point is not that any one of these deductions is transformative on its own. The point is that an S corp, structured correctly, creates a framework where each of these tools is accessible and legally defensible. A sole proprietorship with the same income does not give you the same architecture. Neither does an LLC that hasn't made the election. The structure is what makes the strategy possible. But the structure alone is not the strategy.
Related reading
- How to Avoid 40% Tax
- What Is the 5-Year Rule for S Corp?
- How Do I Know If My LLC Is an S Corp or Sole Proprietorship?
- Is It Better to Be an S Corp or a Sole Proprietor?
- Work with an S-Corp attorney
S corp structure is only as valuable as the legal foundation underneath it, and that is exactly where Delina works.
If you are ready to evaluate whether your current structure is actually capturing the tax savings it should be, or whether what you have is a tax position waiting to be challenged, book a paid intake with Delina. This is not a free call. It is a focused, strategic session with an attorney who has read everything above and has specific opinions about your situation.
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