# S corp vs LLC: When the tax election saves money Michel Myara, Co-founder & Product Designer · September 22nd 2026 *Amounts last verified on September 25th 2026* Canonical: https://looch.money/blog/s-corp-vs-llc --- ## S corp vs LLC calculator: See whether the election pays An S corp election can save a profitable single-member LLC owner money when payroll taxes on a reasonable salary are lower than self-employment tax on all the business’ profit. It doesn’t always win once you include payroll, a separate S corp return, unemployment taxes, and a smaller qualified business income deduction.
Enter your expected business profit and a salary that reflects the work you actually do. This calculator uses published 2026 rules to compare the estimated federal tax result for a single-member LLC with the result after an S corp election. The estimate includes federal taxes. If you choose a state, it also includes state unemployment tax on the salary. It doesn’t include state income tax treatment of S corporations, which varies by state. Treat the salary input as a real operating decision, not a lever to drag toward zero. The IRS requires reasonable compensation before an owner-employee takes non-wage distributions. ## What changes when an LLC elects S corp status? ![Single-member LLC owner reviewing S corp vs LLC tax estimates at a desk](https://looch.money/img/blog/s-corp-vs-llc/s-corp-vs-llc-owner-reviewing-tax-estimates.webp) An S corporation isn’t a different kind of company in this comparison. It’s a federal tax election. Your LLC stays an LLC under state law, but its federal tax treatment changes. Without the election, a single-member LLC owner generally pays self-employment tax on the business’ net earnings. With the election, an owner who works in the business becomes an employee, receives a reasonable salary, and pays payroll taxes on that salary. Remaining profit may be distributed without employment taxes after reasonable compensation has been paid. That split creates the potential S corp tax savings. It also creates payroll, employment filings, an S corporation tax return, and compensation rules that the default LLC tax treatment doesn’t have. The right question isn’t whether an S corp rate is lower. It’s whether the employment-tax reduction is large enough to cover the extra cost and complexity after accounting for income tax and the qualified business income deduction. ## How do S corp tax savings work? For 2026, self-employment tax is 15.3% on 92.35% of net earnings. That consists of 12.4% Social Security tax and 2.9% Medicare tax. The Social Security portion stops at $184,500. An S corp salary instead carries employee payroll taxes of 6.2% for Social Security and 1.45% for Medicare. The employer pays the same amounts again, with Social Security applying to wages up to $184,500. Federal unemployment tax is 0.6% on the first $7,000 of wages after the usual state credit. The comparison is therefore self-employment tax on the LLC’s net earnings versus both halves of payroll tax, unemployment tax, and income tax under the S corp structure. The salary determines how much profit remains outside payroll. Sources: [IRS Form 1040-ES](https://www.irs.gov/pub/irs-pdf/f1040es.pdf), [SSA](https://www.ssa.gov/oact/cola/cbb.html), [IRS Publication 15](https://www.irs.gov/pub/irs-pdf/p15.pdf) ## How much could an S corp save at different profits? looch ran six worked examples through the calculator above. Each assumes a single filer, no other income, 2026 federal rules, no state selected, and an owner salary set at half of profit for illustration only. That salary assumption isn’t an IRS rule. Your reasonable salary could be higher or lower depending on your work, experience, time, responsibilities, and market compensation. The estimated federal savings before running costs are: - $40,000 of profit: $2,335.84 - $60,000 of profit: $3,329.55 - $80,000 of profit: $4,021.41 - $120,000 of profit: $5,125.01 - $200,000 of profit: $7,631.47 - $300,000 of profit: $14,376.90 ![S corp vs LLC estimated federal savings across six business profit levels](https://looch.money/img/blog/s-corp-vs-llc/s-corp-vs-llc-savings-by-profit.webp) These aren’t universal savings thresholds. A business with the same profit but a different defensible salary can get a very different answer. Filing status, other income, running costs, and state treatment can also change the result. The examples do show why a blanket profit threshold is weak advice. The election can produce savings at $40,000 of profit, but the margin may be too small to justify the extra work. At higher profits, there may be more room between a reasonable salary and total profit, but only when the facts support that salary. ## What costs can erase the savings? An S corp adds costs that a basic tax comparison can miss. The business has to run payroll, make employment filings, prepare an S corporation return, and account for federal and state unemployment taxes. The calculator lets you include estimated payroll and return costs instead of treating the headline tax difference as money you automatically keep. For illustration, looch entered $2,000 a year for payroll and the S corp tax return. In the $40,000 profit example, estimated savings fall to $527.84. In the $120,000 profit example, estimated savings fall to $3,477.01. The $2,000 figure is an illustration, not a quote. Your actual cost depends on how you handle payroll and tax preparation. This is where an S corp often doesn’t make sense. If the tax reduction is small, a year of added administration can consume most of it. If a defensible salary is close to total profit, there may be little or no employment-tax advantage left. ## What counts as a reasonable salary? The IRS states: “S corporations must pay reasonable compensation to a shareholder-employee in return for services that the employee provides to the corporation before non-wage distributions may be made to the shareholder-employee.” It also says it “has the authority to reclassify payments made to shareholders from non-wage distributions (which are not subject to employment taxes) to wages (which are subject to employment taxes).” There’s no universal percentage in that standard. The factors the IRS lists include training and experience, duties and responsibilities, time and effort devoted to the business, and what comparable businesses pay for similar services. That means a salary equal to half of profit is only a worked-example input here. It isn’t a safe harbor, a target, or an IRS formula. A full-time consultant doing all the revenue-producing work may need a different salary from an owner whose employees perform most operations. At $120,000 of profit, looch’s calculator shows how strongly salary changes the answer: - A $40,000 salary produces estimated savings of $8,795.73. - A $60,000 salary produces estimated savings of $5,125.01. - An $80,000 salary produces estimated savings of $1,454.29. - A $100,000 salary costs $2,216.43 more than staying an LLC. ![S corp vs LLC savings at three reasonable salary assumptions](https://looch.money/img/blog/s-corp-vs-llc/s-corp-vs-llc-savings-by-reasonable-salary.webp) The point: A lower salary can make a calculator show more savings, but the salary still has to match the work. Never choose a salary lower than the work justifies to manufacture a better result. Source: [IRS S corporation compensation guidance](https://www.irs.gov/businesses/small-businesses-self-employed/s-corporation-compensation-and-medical-insurance-issues) ## Why does the QBI deduction shrink under an S corp? Many simple S corp calculators compare employment taxes and stop there. That can overstate the benefit because an S corp salary changes the qualified business income deduction. The deduction can be up to 20% of qualified business income. Federal law excludes reasonable compensation paid to the owner from qualified business income. As a result, the owner’s S corp salary doesn’t generate the deduction, and the deduction may be smaller than it is under the default LLC treatment. Limits begin above taxable income of $201,750 for a single filer and $403,500 for married filing jointly. At $120,000 of profit and a $60,000 salary, looch’s worked comparison looks like this: For the LLC, self-employment tax is $16,955.46, federal income tax is $11,506.32, the qualified business income deduction is $19,084.45, and total estimated tax is $28,461.78. For the S corp, payroll taxes on the salary are $9,180.00 for both halves, federal unemployment tax is $42.00, federal income tax is $14,114.77, the qualified business income deduction is $11,073.60, and total estimated tax is $23,336.77. ![S corp vs LLC tax breakdown at $120,000 of business profit](https://looch.money/img/blog/s-corp-vs-llc/s-corp-vs-llc-tax-breakdown-at-120000-profit.webp) Income tax goes up in this example because the qualified business income deduction shrinks. The overall saving comes from payroll taxes on the $60,000 salary being far below self-employment tax on all $120,000 of profit. Sources: [26 U.S.C. 199A](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title26-section199A&num=0&edition=prelim), [IRS Rev. Proc. 2025-32](https://www.irs.gov/pub/irs-drop/rp-25-32.pdf) ## When is an S corp not worth it? An S corp election may not be worth it when profit is inconsistent, a reasonable salary consumes most of the profit, or payroll and return costs absorb the estimated tax reduction. It can also be a poor fit when the owner wants the least administrative overhead possible. The election turns the working owner into an employee for federal tax purposes, which means payroll and employment-tax responsibilities continue even when the tax difference is modest. State treatment is another reason not to rely on a federal result alone. This calculator estimates federal taxes and, when you choose a state, state unemployment tax on the salary. It doesn’t include state income tax treatment of S corporations. The LLC vs S corp decision should therefore be made on the net result, not the largest savings number on the page. Use a salary you can support, include running costs, and look at the qualified business income deduction rather than employment taxes alone. ## How and when do you make an S corp election? An eligible business makes the S corp election with Form 2553. IRS instructions say to file “No more than 2 months and 15 days after the beginning of the tax year the election is to take effect, or At any time during the tax year preceding the tax year it is to take effect.” Timing depends on when you want the election to begin. Don’t assume that forming an LLC automatically makes it an S corporation, and don’t start treating distributions as outside payroll before the election and compensation setup are handled correctly. If the election changes what you expect to owe during the year, revisit your [estimated tax payments](/blog/estimated-tax-payments) rather than waiting until the return is prepared. Source: [Instructions for Form 2553](https://www.irs.gov/instructions/i2553) ## How looch helps with an S corp election [looch Start](/start) includes an S corporation election at no cost, any time, in the app, for an LLC or a corporation. In the first year, it’s due within 75 days of formation. After that, it’s due by March 15th, and looch usually files the form for you. The calculator gives an estimate from published 2026 rules, and a tax professional can confirm how the election applies to your specific situation. ## S corp vs LLC FAQ ### Is an S corp a different type of company from an LLC? No. In this context, an S corp is a federal tax election, not a new state-law entity. The LLC stays an LLC after making the election. ### At what profit does an S corp start saving money? There’s no universal profit threshold. The answer depends heavily on reasonable salary, running costs, filing status, other income, the qualified business income deduction, and state treatment. ### Can I set my S corp salary at half of profit? Only if that salary is reasonable for the services you provide. Half of profit is the assumption looch used in several worked examples, not an IRS rule or safe harbor. ### Does an S corp eliminate self-employment tax? The working owner receives wages subject to employee and employer payroll taxes. The potential saving comes from non-wage profit remaining after reasonable compensation, not from making employment taxes disappear. ### What form elects S corp status? An eligible LLC or corporation uses Form 2553. The filing window depends on the tax year in which the election should take effect, so check the current IRS instructions before filing.