What the Election Moves, and What It Leaves Alone
An LLC is a state law entity, not a tax classification. The IRS treats an LLC with only one member as an entity disregarded as separate from its owner, and a multi member LLC as a partnership, unless the company files to change that. In the default state, the whole of the company's net profit is self employment income to the owners, and self employment tax runs on it at 15.3 percent, being 12.4 percent for Social Security and 2.9 percent for Medicare, applied to 92.35 percent of net profit.
Filing Form 2553 changes the classification. The company keeps its LLC name, its operating agreement and its state filings; what changes is that it files Form 1120-S, puts its working owners on payroll, and issues a Schedule K-1 rather than reporting on Schedule C. The IRS is direct about the payroll part: distributions and other payments by an S corporation to a corporate officer must be treated as wages to the extent the amounts are reasonable compensation for services rendered.
So the entire saving comes from one gap: the part of profit that is distribution rather than salary carries no employment tax. Everything on this page is about how large that gap really is once the costs it creates are counted. If what you want first is the structural comparison between an entity and an election, that is C corporation vs S corporation, and the plain description of the status is in what is an S corp.
The Payroll Tax Saving, Before Anything Else
Start with the number every calculator shows, computed at 2026 rates. Self employment tax runs on 92.35 percent of profit. Employment tax on a salary runs at 7.65 percent from the employee and 7.65 percent from the company, plus federal unemployment tax of 0.6 percent on the first $7,000 of wages, which is $42.
| Net profit | Salary set at | Self employment tax as a default LLC | Employment tax as an S corporation | Gross saving |
|---|---|---|---|---|
| $70,000 | $45,000 | $9,891 | $6,927 | $2,964 |
| $120,000 | $72,000 | $16,955 | $11,058 | $5,897 |
| $200,000 | $110,000 | $28,234 | $16,872 | $11,362 |
| $320,000 | $160,000 | $32,308 | $24,522 | $7,786 |
Two things in that table are worth pausing on. The saving is not large at $70,000. And it goes down between $200,000 and $320,000, which no calculator ever shows, for a reason covered further down. Everything in the gross saving column is still an overstatement, because two costs have not been subtracted yet.
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What the Election Costs to Run
The election creates an employer. That employer has obligations that a default LLC never had, and they recur every year for as long as the election stands.
- Payroll processing. A one employee payroll runs roughly $500 to $1,200 a year through a mainstream provider, which is the cheapest way to get Form 941 filed quarterly, Form 940 filed annually, deposits made on time and a Form W-2 issued.
- A second tax return. Form 1120-S is a corporate return with a balance sheet, a shareholder basis schedule and a Schedule K-1. Preparation typically costs $800 to $2,000 more than adding a Schedule C to a personal return.
- State employer accounts. Withholding registration and a state unemployment insurance account, with contributions on the owner's wages that commonly run a few hundred dollars a year at a new employer rate.
- Workers compensation. Required for the owner as an employee in some states, with an exemption election available in others.
Call it $1,800 to $3,500 a year all in, and use $2,400 as a working midpoint for a simple one owner business. That figure is a market estimate rather than a federal one, so replace it with your own accountant's quote before deciding. The returns themselves are described in the payroll tax returns guide and federal tax returns by entity type.
The Deduction the Salary Destroys
This is the cost that almost no calculator models, and for a business under the income threshold it is larger than the compliance cost.
Owners of sole proprietorships, partnerships and S corporations may deduct up to 20 percent of qualified business income. The catch is what counts as qualified business income once you are paying yourself a salary. The Form 8995-A instructions state that amounts received as reasonable compensation from an S corporation are not included in qualified business income. Salary is wages. Wages are not qualified business income. So every dollar you move from distribution to salary is a dollar removed from the base of a deduction worth up to 20 percent.
Work the $120,000 case. As a default LLC, qualified business income is roughly profit less the deductible half of self employment tax, about $111,500, giving a deduction near $22,300. As an S corporation paying a $72,000 salary, the company's remaining profit after salary and employer taxes is about $42,450, giving a deduction near $8,490. The deduction has fallen by about $13,800, and at a 22 percent marginal rate that is roughly $3,040 of extra income tax, wiping out more than half the $5,897 of employment tax saved.
Two conditions govern this. First, it holds while taxable income is below the section 199A threshold, which Revenue Procedure 2025-32 sets for tax years beginning in 2026 at $201,750 on a single return and $403,500 on a joint return, with the phase-in ranges topping out at $276,750 and $553,500. Second, it assumes the deduction is not otherwise limited. Above the threshold the sign flips, which the wage base section takes up.
The Net Number, and Where It Turns Positive
Now put the three pieces together for a single owner below the income threshold, with the salary set as shown and $2,400 to $2,600 of annual compliance cost.
| Net profit | Gross employment tax saving | Extra income tax from the lost deduction | Cost of running the election | Net result |
|---|---|---|---|---|
| $70,000 | $2,964 | $1,916 | $2,400 | Loss of about $1,350 |
| $120,000 | $5,897 | $3,039 | $2,400 | Gain of about $460 |
| $200,000 | $11,362 | $5,008 | $2,600 | Gain of about $3,750 |
Run the same model across a range of profits and the crossing point sits near $100,000 to $120,000 of net profit, not the $40,000 or $50,000 that circulates in forum advice. Below roughly $100,000 the election reliably costs money. Between $100,000 and $200,000 it earns a few hundred to a few thousand dollars a year, which is real but is not the transformation it gets sold as. The variables that move the crossing point most are the salary you can defend and your marginal income tax rate: a lower defensible salary raises the gain, and a higher marginal rate raises the cost of the lost deduction.
One consequence follows immediately. If your accountant quotes $3,500 a year for payroll and the corporate return, the crossing point moves up past $140,000. Price the compliance before modelling the tax.
What Happens at the Social Security Wage Base
The Social Security portion of both self employment tax and payroll tax stops at a ceiling. The IRS puts the base at $184,500 for earnings in 2026. Above it only the 2.9 percent Medicare portion continues, with an additional 0.9 percent Medicare tax on amounts above $200,000 for a single filer, $250,000 on a joint return and $125,000 for married filing separately.
That ceiling changes the whole shape of the decision. Below it, each extra dollar of distribution instead of salary saves about 15.3 cents. Above it, the same dollar saves about 2.9 cents, or 3.8 cents once the additional Medicare tax applies. This is why the gross saving in the first table drops from $11,362 at $200,000 of profit to $7,786 at $320,000: by then the default LLC has already run out of Social Security tax to avoid, while the salary is still large enough to consume most of what remains.
Then, at higher incomes, a second regime change arrives and it runs the other way. Once taxable income exceeds the threshold plus the phase-in range, the qualified business income deduction is limited to the greater of 50 percent of W-2 wages paid by the business, or 25 percent of W-2 wages plus 2.5 percent of the unadjusted basis of qualified property. A single owner LLC with no employees and no equipment pays no W-2 wages at all, so above that line its deduction is zero. The same business as an S corporation paying a $160,000 salary has $80,000 of headroom under the wage test, and on about $147,700 of remaining profit the full 20 percent deduction of roughly $29,500 survives. At a 32 percent marginal rate that is close to $9,500 of tax, on top of $7,786 of employment tax saved, against $3,000 of compliance cost.
One exception swallows a lot of readers. A specified service trade or business, which the instructions define as including health, law, accounting, actuarial science, performing arts, consulting, athletics, financial services and brokerage, is excluded from the deduction entirely once taxable income exceeds the threshold plus the phase-in range. For those businesses, above the line the deduction is gone whatever the wages are, and the comparison collapses back to employment tax alone.
Reasonable Compensation Is the Whole Variable
Every number above moves when the salary moves, which is why the salary is the one input the IRS actually polices. There is no published formula. The agency applies a facts and circumstances test and lists what it weighs: training and experience, duties and responsibilities, time and effort devoted to the business, dividend history, payments to non-shareholder employees, timing and manner of paying bonuses to key people, what comparable businesses pay for similar services, compensation agreements, and the use of a formula to determine compensation.
It also suggests a method rather than a percentage: work out how much of gross receipts comes from the shareholder's own services, as against the services of non-shareholder employees and the contribution of capital and equipment. A consultant who is the entire product should expect a salary close to what the business earns. An owner whose revenue comes largely from a crew and a fleet has a genuine argument for a smaller one.
The consequence of getting it wrong is not a rejected filing, it is a reclassification. The IRS notes that courts have found shareholder-employees are subject to employment taxes even when shareholders take distributions, dividends or other forms of compensation instead of wages. Document how you set the number, keep the comparable data you used, and revisit it when the business changes. The full treatment is in S corp reasonable salary, and how owners actually move money out is covered in how to pay yourself from your LLC.
Four Situations Where the Arithmetic Does Not Work
Profit is below roughly $100,000, or it is unpredictable. The compliance cost is fixed and the saving is proportional, so a lean year turns a modest gain into a clear loss. A business whose profit swings between $40,000 and $150,000 pays the running cost every year and collects the benefit in some of them.
Any owner is a nonresident alien, an entity or an ineligible trust. Subchapter S bars them outright, and the election is simply unavailable. The eligibility gate is set out in full in C corporation vs S corporation, and founders in that position should read the foreign founder guide.
You expect to raise priced equity. One class of stock, no entity shareholders and a 100 shareholder ceiling do not fit a venture round, and section 1202 stock cannot exist inside a company taxed under subchapter S. That comparison lives in LLC vs C corporation.
You are counting on losses. Passing a loss through requires basis to absorb it, and a member whose capital is already used up receives a suspended loss instead of a deduction. A business heading into a lean stretch usually keeps more optionality by leaving the classification alone until the picture settles.
Filing Form 2553, and the Deadline That Governs It
The election is made on Form 2553, signed by an officer and consented to by every shareholder. The instructions set the window at 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 preceding tax year. For a calendar year company electing for the current year, that is 15 March.
Missing it is usually survivable. Relief for a late election is available under Revenue Procedure 2013-30 where relief is requested within 3 years and 75 days of the effective date entered on line E, with the words FILED PURSUANT TO REV. PROC. 2013-30 written across the top of the form and a reasonable cause statement attached. An LLC does not need to file Form 8832 first: the instructions confirm that an entity eligible to elect corporate treatment which files Form 2553 does not need to file Form 8832. The step by step is in the Form 2553 guide, and the separate classification election is in the Form 8832 guide.
One date to diary from day one: Form 1120-S is due by the fifteenth day of the third month after year end, which is a month earlier than the personal return most owners are used to.
When to Pull the Trigger
Form the LLC, operate in the default classification while the profit is finding its level, and file the election in the first year where three things are true at once: profit is comfortably past $100,000, you can name a defensible salary and show your working, and you have a payroll provider and an accountant quoted rather than assumed.
The reverse mistake, electing on formation day because it sounds like the sophisticated choice, costs money for as long as it takes profit to catch up, and the compliance habits it forces on a business that is not ready for them are a real distraction. Nothing about waiting is lost: the election is available in any later year, and the late relief procedure covers a fair number of the years where the deadline slipped.
Five Mistakes in the S Corp Election Decision
Mistake 1: Modelling the payroll tax saving and stopping there
The gross saving is the first of three numbers, not the answer. Subtract the compliance cost, subtract the income tax on the qualified business income deduction the salary removes, and only then compare. Businesses that skip the second subtraction typically overstate the benefit by half or more at profits under $200,000.
Mistake 2: Electing and then taking no salary
Zero salary with full distributions is the single easiest thing for an examiner to spot, because the Form 1120-S shows officer compensation of nothing next to a large distribution. The correction is a recharacterisation with interest running from the date each payment should have been withheld on. Put the salary on a payroll schedule in month one rather than reconstructing it in a year end journal entry.
Mistake 3: Assuming the election changes the state picture
The company is still an LLC on the state register, still files the same annual report, and in several states the election is not recognised for state income tax without a separate state level filing. Some states also impose their own tax on S corporations. Check the state before assuming the federal saving is the whole saving.
Mistake 4: Electing with uneven owner economics
Subchapter S requires one class of stock, which means distributions have to follow ownership percentages exactly. An LLC operating agreement that gives one member a preferred return or a disproportionate split is incompatible with the election, and a distribution made on the old terms after the election is a second class of stock waiting to be found.
Mistake 5: Electing in a year the company cannot fund the payroll
Payroll requires cash on a schedule. A business with lumpy collections that elects and then cannot make a payroll run ends up either skipping the salary, which is the mistake above, or borrowing to pay itself. Confirm the cash flow supports twelve or twenty six regular payments before filing the form.
Three Businesses That Ran the Numbers
Example one: a copywriter in Providence
Nadia Okonjo runs a solo copywriting practice through a Rhode Island LLC, netting $74,000 last year with no employees. An online calculator promised her about $3,000 a year. Her accountant quoted $1,100 for payroll and $1,600 more for the Form 1120-S, and pointed out that a $45,000 salary would cut her qualified business income deduction by roughly $8,700, adding close to $1,900 of income tax at her marginal rate. Net effect: a loss of about $1,350 a year. She stayed in the default classification and revisits it each January.
Example two: a two van HVAC business in Mesa
Kestrel Air Services clears $205,000 of profit with three employees on the books already. Because the owner's revenue depends heavily on a crew and on equipment, the defensible salary came out at $110,000 rather than the whole of profit. The gross employment tax saving was about $11,400, the lost deduction cost roughly $5,000 in income tax, and payroll plus the corporate return ran $2,600, leaving about $3,750 a year. The election went in, and the deciding factor was that payroll already existed, so the marginal compliance cost was one more employee rather than a new system.
Example three: a product design studio in Madison
Lathe and Line clears about $320,000 through a Wisconsin LLC with two owners and $180,000 of equipment. At that income the owners are past the section 199A threshold, and with modest W-2 wages the default classification was leaving most of the deduction on the table. Electing subchapter S and running $160,000 of owner salaries preserved roughly $29,500 of deduction that the wage test would otherwise have cut, worth close to $9,500 at their marginal rate, on top of about $7,800 of employment tax. Against $3,000 of compliance cost that is the strongest case on this page, and it has almost nothing to do with self employment tax.
What Getting This Wrong Costs: The Penalty in Dollars
Three numbers are worth carrying.
The first is the underpaid salary. An owner taking $180,000 of distributions and a $30,000 salary who is examined and settles at a $110,000 reasonable salary has $80,000 of recharacterised wages. Employment tax on that at 15.3 percent is $12,240 for one year, before interest and before any accuracy related penalty, and the examination will not usually stop at one year.
The second is the late return. Revenue Procedure 2025-32 sets the amount used to compute the section 6699 penalty for a late Form 1120-S at $260 per shareholder per month for returns required to be filed in 2027. A two shareholder company filing six months late owes $3,120 on a return that may report no tax at all, and the earlier due date is what catches people in the first year.
The third is the election nobody needed. A business at $70,000 of profit that elects and stays there for four years is out roughly $5,400 in net cost, plus the time spent on quarterly filings, for a decision that felt like tax planning. That is the quiet version of this mistake, and it is far more common than the audit.
Where to Read Next
If the election is the right answer, the filing itself is in the Form 2553 guide and the salary question in S corp reasonable salary. If you want the structural comparison rather than the arithmetic, read C corporation vs S corporation, and if outside investment is on the table, LLC vs C corporation explains why the election gets in the way. For the default position the election departs from, see the LLC taxes guide and the single member LLC guide. If nothing is formed yet, start at LLC vs sole proprietorship, and if there is more than one owner, LP vs LLP vs LLC covers the forms available before any election is on the table.
LLC vs S Corp Election FAQ
At what profit does the S corp election start to pay for itself?
For a one owner business setting a salary at roughly 60 percent of profit and paying market rates for payroll and a Form 1120-S, the net gain crosses zero somewhere around $100,000 to $120,000 of net profit. Below that the payroll cost and the lost qualified business income deduction eat the whole self employment tax saving. The exact crossing point moves with your salary, your marginal rate and what your accountant charges.
Why do online S corp calculators show a much bigger saving?
Because most of them compare self employment tax against payroll tax and stop there. They leave out the running cost of payroll and a second tax return, and they leave out the qualified business income deduction. The Form 8995-A instructions state that amounts received as reasonable compensation from an S corporation are not included in qualified business income, so every dollar of salary is a dollar removed from a deduction worth up to 20 percent.
Does the saving keep growing as profit grows?
No, and this is the part that surprises people. The Social Security portion of self employment tax stops at the wage base, which the SSA sets at $184,500 for earnings in 2026. Above that, each extra dollar of profit carries only the 2.9 percent Medicare portion, plus 0.9 percent above $200,000 for a single filer, so the marginal saving falls from about 15 cents on the dollar to about 3.
What is a reasonable salary for an S corporation owner?
There is no formula. The IRS says distributions and other payments by an S corporation to a corporate officer must be treated as wages to the extent the amounts are reasonable compensation for services rendered, and it lists factors including training and experience, duties and responsibilities, time and effort devoted to the business, and what comparable businesses pay for similar services.
If I decide in June, can the election still cover this year?
Sometimes. The ordinary window closes 2 months and 15 days after the tax year begins, which is 15 March for a calendar year business, so a June decision is already late for the current year. Two options remain: ask for relief under Revenue Procedure 2013-30 with a reasonable cause statement, or elect for the following year and spend the rest of this one setting up payroll properly. The second is often the better outcome anyway.
Do I have to give up my LLC to elect S corporation treatment?
No. The election changes federal tax classification, not state law status. The company stays an LLC on the state register, keeps its operating agreement and files the same annual report. What changes is that it files Form 1120-S, runs payroll for its working owners, and issues a Schedule K-1 instead of reporting on Schedule C.
What if my business is a consulting or professional practice?
Then check where your taxable income sits before assuming the wage lever helps you. A specified service trade or business, which includes health, law, accounting, consulting, athletics and financial services, is excluded from the qualified business income deduction entirely once taxable income exceeds the threshold plus the phase-in range. Above that line the deduction is gone either way, and the comparison collapses back to payroll tax alone.
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