The S corporation election is the most common tax decision a profitable small business makes, and it is usually made on a number calculated wrongly. What follows is the calculation done properly, plus the dates and the relief route if you have already missed one.
What an S-Corp Election Actually Does
An S-corporation election does NOT change the legal structure of your entity. An LLC that elects S-corp treatment is still an LLC under state law. A C-corporation that elects S-corp treatment is still a C-corp under state law. The election only changes how the entity is TAXED at the federal level, and most states follow the federal election automatically.
The election is filed on Form 2553 with the IRS. There is no state filing required (in most states). The election applies for the tax year specified and continues until revoked or until the entity becomes ineligible (e.g., adding a non-US-resident member).
S-corp tax treatment allows the entity's profit to flow through to the owners' personal returns (like an LLC partnership), but with a critical twist: owners who work in the business must pay themselves a "reasonable salary" subject to payroll taxes (Social Security + Medicare = 15.3%). Profit above the reasonable salary is distributed as ordinary income, which is NOT subject to self-employment tax. This is where the S-corp tax savings come from.
When S-Corp Election Actually Saves Money
At a Glance
| Item | Value |
|---|---|
| Form | IRS Form 2553 |
| Cost | $0 (free) for the IRS election |
| Deadline | Within 2 months and 15 days of intended effective date |
| Late election relief | Available under Rev. Proc. 2013-30 (within 3 years and 75 days) |
| Processing | 60 days to receive CP 261 confirmation |
The S-corp election saves money when entity profit consistently exceeds a reasonable salary for the owner's work. The savings come from avoiding self-employment tax (15.3%) on the portion of profit above the reasonable salary.
Rule of thumb: S-corp election starts saving money around $50,000-$80,000 of annual net profit. Below that, the costs of running payroll (typically $500-$2,000/year) and the complexity of separating salary from distribution often outweigh the savings.
The usual shorthand, distribution times 15.3%, overstates it: self-employment tax is charged on 92.35% of net earnings, not on the whole profit line. Here is the comparison done properly, on the 2026 Social Security wage base of $184,500.
At $100,000 of profit with a $60,000 salary, a sole proprietor pays self-employment tax on $92,350, which is $11,451 of Social Security plus $2,678 of Medicare, about $14,129. The S corporation pays 15.3% on $60,000, or $9,180. The difference is roughly $4,950, and payroll service at $500 to $2,000 leaves $3,000 to $4,400 net.
At $200,000 of profit with an $80,000 salary, the sole proprietor's base is $184,700, above the cap, so Social Security is $22,878 and Medicare $5,356, about $28,234. The S corporation pays $12,240. The difference is close to $15,990 before payroll costs, which is where the election clearly earns its weight.
Above the wage base, only the 2.9% Medicare portion continues, plus the additional Medicare tax at higher incomes, so savings grow more slowly while the reasonable salary itself has to rise. Both figures ignore the income tax effects of the deduction for half of self-employment tax and of the qualified business income deduction. Treat them as the payroll tax comparison they are, and see when to actually switch for the wider decision.
Compliance monitoring
If you would rather not do this yourself, we track every deadline for your entity and file on time, in every state where you are registered. Or keep reading and file it on your own. This guide covers everything you need either way.
Who Can Elect S-Corp Treatment
The entity must be a domestic LLC or domestic corporation (US-formed). Foreign entities cannot elect S-corp treatment.
All shareholders or members must be US citizens or US resident aliens. A single non-resident alien owner makes the entity ineligible, which is a common way an election ends. Founders outside the US should read forming a US LLC without an SSN instead; the disregarded LLC route brings its own filing in Form 5472.
Maximum 100 shareholders/members. Family members can be counted as one for this purpose under certain rules.
Only one class of stock/membership interest. Voting and non-voting rights can differ within the same class, but economic rights (distribution rights, liquidation rights) must be uniform.
Permitted shareholders: individuals, certain trusts (grantor trusts, qualified subchapter S trusts, electing small business trusts), and certain estates. Partnerships, corporations, and most other entities cannot be shareholders.
When to File Form 2553
The standard deadline is no more than 2 months and 15 days after the beginning of the tax year the election is to take effect. The instructions define the two months precisely: the period begins on the day of the month the tax year begins and ends at the close of the day before the numerically corresponding day of the second calendar month following. For a calendar year entity that is March 15, the date Form 1120-S is itself due. The election may also be filed at any time during the preceding tax year.
For a NEW entity, the 2 months and 15 days run from the date the entity began its first tax year (typically the formation date or the date business activity began, whichever is later).
Filing after the deadline normally means the election is not effective until the FOLLOWING tax year. But: Rev. Proc. 2013-30 provides a late-election relief path (covered next).
Rev. Proc. 2013-30 Late-Election Relief
If you missed the 2-months-and-15-days deadline, you may still qualify for late-election relief under IRS Revenue Procedure 2013-30. This relief applies if:
(1) The entity intended to be classified as an S-corp from the intended effective date; (2) The entity failed to file Form 2553 timely; (3) The entity has reasonable cause for the failure; (4) The entity has not filed a return inconsistent with S-corp treatment for the years in question (i.e., did not file Form 1120 as a C-corp); (5) The relief request is filed within 3 years and 75 days of the intended effective date.
How to file: complete Form 2553 normally, plus add the statement "FILED PURSUANT TO REV. PROC. 2013-30" across the top of the form. Include a written explanation of the reasonable cause for the late filing (typically: "Taxpayer's failure was due to inadvertent mistake. Taxpayer reasonably believed the election had been filed."). All shareholders must sign.
Properly prepared Rev. Proc. 2013-30 requests inside the 3 year and 75 day window are routinely granted. Outside it, the only route is a private letter ruling, whose user fee is set each January in the appendix to the year's first revenue procedure and runs into the tens of thousands of dollars before professional fees. That gap is why this window matters more than almost any other date here.
How to File Form 2553
Form 2553 is a 4-page form. Page 1 captures entity information, election effective date, and shareholder consent. Pages 2-4 are used only if certain elections (Q1 fiscal year, qualified subchapter S trust election) are made.
Filing methods: Form 2553 goes by fax or by post, with no online path. Fax is better, because it produces a dated transmission report and this form's value depends on when it arrived. Kansas City takes the eastern group at fax 855-887-7734 and Ogden the western group at 855-214-7520. Check the current split of states in the instructions rather than an old copy.
Required attachments: every shareholder/member must sign the form indicating consent to the election. Missing signatures invalidate the election. For an LLC, every member must sign.
After filing: expect a determination within about 60 days as a CP 261 acceptance letter, or 90 days longer if box Q1 was checked for a fiscal year on a business purpose. If nothing arrives within two months, or five in the Q1 case, contact the IRS rather than assume acceptance. Save the CP 261 with the EIN confirmation letter; it is the only proof the election exists.
The federal election is not the state election everywhere. Most states follow it automatically, but New York requires a separate election on Form CT-6, due on or before the fifteenth day of the third month of the tax year it applies to, and several states tax S corporations at entity level whatever the federal position. See franchise tax by state for what the entity owes regardless.
The "Reasonable Salary" Requirement
S-corp owners who work in the business must pay themselves a reasonable salary BEFORE taking distributions. The IRS audits S-corps that pay low salaries and high distributions, the IRS can reclassify distributions as wages, retroactively applying payroll tax and penalties.
How to determine a reasonable salary: look at what a comparable position pays in the same industry, geography, and at a comparable company size. The Bureau of Labor Statistics publishes wage data by occupation and metro area. Industry surveys (RMA, IBISWorld) provide additional benchmarks.
Documentation: keep a written analysis of how you arrived at the reasonable salary, including BLS data, industry surveys, time spent on different roles, and comparable salaries. This documentation defends the salary level in an IRS audit.
Practical floor: many advisers start at 30% to 40% of net profit, adjusting up for highly compensated fields and down for capital-intensive businesses where the return comes from assets rather than the owner's labour. That is a heuristic, not a rule, and no substitute for the comparability evidence above. Reasonable salary works through the benchmarking, and how to pay yourself from your LLC covers splitting salary from distribution.
Setting a salary means running payroll: Form 941 quarterly and Form 940 annually, EFTPS enrolment, and a W-2 in January. That load is the real cost of the election, and payroll for small business covers the setup.
Three Elections in Practice
The three below are composites. The federal dates, rates and thresholds are real; the business facts are illustrative.
Example 1: Northgate Physio elects at the right size
A physiotherapy clinic in Minneapolis taxed as a partnership between two owners clears $240,000 of profit, split evenly. On election, each owner goes on a $75,000 salary benchmarked against clinical pay in the metro area and documented with published wage data and an hours split between treatment and management. Combined payroll tax falls from roughly $33,900 to $22,950, a saving of about $10,950, against payroll service and extra return preparation of perhaps $2,600. Worth making, and worth making with a documented salary rather than a guessed one.
Example 2: Wren and Ash Studio elects too early
A single-member design LLC with $58,000 of profit files Form 2553 after reading that S corporations save tax. A reasonable salary is around $45,000, leaving $13,000 of distribution. The payroll tax saving on that is under $2,000, and payroll service, extra bookkeeping and Form 1120-S preparation cost more. The election also added a March 15 deadline the owner never had, on a return charged at $260 per shareholder per month when late. Below roughly $50,000 to $80,000 of profit the arithmetic usually fails. See what is an S corporation and LLC taxes.
Example 3: Copperfield Freight files two years late
A three-member logistics LLC intended to be an S corporation from January 1, 2024. The accountant who was to file Form 2553 left, nobody noticed, and the omission surfaces in 2026. The members had filed consistently: no Form 1120 as a C corporation, and returns treating the business as intended. That is the fact pattern Rev. Proc. 2013-30 was written for. They file Form 2553 with January 1, 2024 on line E, write FILED PURSUANT TO REV. PROC. 2013-30 across the top, attach a reasonable cause statement, and collect all three signatures. Inside 3 years and 75 days of the line E date the relief is available; a year later it would not have been.
Common Form 2553 Mistakes
Five failures account for most invalid, late or regretted elections.
Mistake 1: Filing late without asking for relief
What happens. The form arrives after the 2 month 15 day date with no reference to the revenue procedure. Why it fails. A late election without a relief request takes effect for the following tax year. Consequence. A full year of the old treatment, with self-employment tax on the whole profit and no way to unwind it. Prevention. Write FILED PURSUANT TO REV. PROC. 2013-30 across the top, attach the reasonable cause statement, and file inside 3 years and 75 days of the line E date.
Mistake 2: Sending the form without every consent
What happens. One member is travelling and the form goes in with three signatures out of four. Why it fails. Every shareholder or member must consent; an incomplete consent block invalidates the election. Consequence. An election you believe is in place and is not, found when the CP 261 never arrives. Prevention. Collect every signature before filing.
Mistake 3: Taking distributions and paying no salary
What happens. The owner works full time and the return shows no officer compensation. Why it fails. An owner performing services must be paid a reasonable salary before distributions. Consequence. Distributions recharacterised as wages across open years, Social Security and Medicare on the recharacterised amount, deposit penalties, and interest from each original due date. Prevention. Set the salary in the month the election takes effect and keep the analysis behind it.
Mistake 4: Not realising the election creates a new return
What happens. The election is accepted and no Form 1120-S is filed, because the owner is used to reporting on a personal return. Why it fails. An S corporation files its own return by March 15 and issues K-1s. Consequence. $260 per shareholder per month up to 12 months for returns required to be filed in 2027, with no tax due required. Prevention. Diarise March 15 the day the CP 261 arrives. Federal returns by entity type covers what changes.
Mistake 5: Admitting a shareholder who ends the election
What happens. A new investor joins who is a non-resident alien, a partnership or a corporation. Why it fails. Shareholders are limited to individuals who are US citizens or residents, certain trusts and certain estates, with a single class of interest. Consequence. The election terminates, the entity becomes a C corporation from that date, and generally cannot re-elect for five years without IRS consent. Prevention. Restrict transfers in the operating or shareholder agreement. C corporation versus S corporation covers the aftermath.
The Penalty Exposure the Election Creates
Form 2553 has no fee and no penalty of its own. It adds obligations that carry their own charges, and a business that elects without planning for them can end up worse off than before.
The return. Form 1120-S is due March 15 and costs $260 per shareholder for each month or part month it is late, capped at 12 months, for returns required to be filed in 2027. A three-shareholder company two months late owes $1,560 with no tax due. The same company a full year late reaches $9,360.
The payroll. Late deposits cost 2% at one to five days, 5% at six to fifteen, 10% beyond fifteen, and 15% once still unpaid more than ten days after IRS notice. On a $9,000 monthly deposit: $180, $450, $900, $1,350.
The salary itself. Where distributions are recharacterised as wages, the assessment is Social Security and Medicare on the recharacterised amount plus deposit penalties and interest. On $120,000 recharacterised across two years the payroll tax alone is roughly $18,360 before penalties. The comparison that matters is the saving, net of payroll and the extra return, against the cost of an election administered badly.
How File.Business Handles S-Corp Elections
File.Business prepares and files Form 2553 for newly-formed LLCs and corporations as part of formation, and as a standalone service for existing entities. We confirm eligibility (US citizens/residents only, single class of stock, ≤100 shareholders), prepare the form with correct effective date and shareholder consent, fax to the correct IRS service center for your principal state of business, and deliver the CP 261 confirmation letter to your document vault.
For late elections: we prepare the Rev. Proc. 2013-30 relief request with the reasonable-cause statement, coordinate shareholder signatures, and handle the IRS correspondence. Standalone S-corp election service: $149 flat (includes follow-up if the IRS requests additional documentation).
Frequently Asked Questions
When is the Form 2553 deadline?
2 months and 15 days from the beginning of the tax year. For calendar-year entities: March 15. For new entities: 2 months and 15 days from the date the first tax year began.
Can I file Form 2553 late?
Yes, under Rev. Proc. 2013-30, late-election relief is available within 3 years and 75 days of the intended effective date, provided you had reasonable cause for the late filing and have not filed inconsistent returns.
How much can S-corp election save me in taxes?
Approximately $4,000-$15,000 per year for entities with $80,000-$200,000 of net profit. Below $50,000 of profit, S-corp election typically does not save enough to justify the payroll complexity and cost.
Do I need to pay myself a salary if I elect S-corp?
Yes. The IRS requires S-corp owners who work in the business to pay themselves a "reasonable salary" subject to payroll taxes BEFORE taking distributions. Low salary + high distribution is a primary IRS audit trigger.
Can a foreign person own an S-corp?
No. All S-corp shareholders/members must be US citizens or US resident aliens. A single non-resident alien shareholder makes the entity ineligible and automatically converts it to C-corp treatment.
Can a single-member LLC elect S-corp treatment?
Yes. SMLLCs commonly elect S-corp treatment when net profit is high enough to justify the payroll complexity. Form 2553 is the only form required (no Form 8832 needed for SMLLCs).
Does my state automatically follow the federal S-corp election?
Most states follow the federal treatment automatically. New York is the clearest exception: a federal S corporation must file Form CT-6 to be treated as a New York S corporation. Several states also impose an entity-level tax on S corporations whatever the federal position, so check your state before assuming the federal election finished the job.
File.Business handles federal compliance for you
From EIN to Form 5472, federal filings stack up fast. File.Business pairs your entity with the right federal filings on a single calendar, with deadline tracking, automatic preparation, and CPA partnership for income tax returns.
This guide is written from the official sources below. Fees, forms, and deadlines change; confirm the current requirement with the agency before you file.
Disclosure. File.Business is a private filing service, not a government agency and not a law firm. We prepare and submit filings at your direction, and nothing on this page is legal or tax advice. Filing fees, deadlines, and statutory references are current as of the last-updated date shown above and can change. Confirm current requirements with the relevant state agency before you file.
