Should my LLC elect S corporation status? Form 2553 deadlines, reasonable salary, real savings and North Carolina rules

An S corporation isn't a type of company; it's a way of being taxed. An LLC or corporation formed under state law files Form 2553 with the IRS to be taxed under Subchapter S. The company generally doesn't pay federal income tax; profits and losses pass through to shareholders by ownership percentage on K-1s and are reported on their personal returns.

• A corporation is a C corporation by default: profit is taxed at 21% federally, and dividends are taxed again to the shareholders. After Form 2553, it's taxed once, at the shareholder level.
• An LLC is disregarded by default if it has one member (its profit goes on your Schedule C) and a partnership if it has two or more. An LLC can file Form 2553 directly; the IRS treats it as also electing to be taxed as a corporation, so no Form 8832 is needed.
• Nothing changes legally: An LLC that elects S status is still an LLC under state law. Licenses, annual reports and the operating agreement stay the same; only the federal and state tax treatment changes.
• After the election: The company files Form 1120-S every year and issues K-1s, and owners who work in the business are paid a reasonable salary through payroll.

Many of the people who ask us about this run single-member LLCs in consulting, software, e-commerce or restaurants whose profits have started to grow, and they've heard an S corporation saves tax. Whether it does, and by how much, depends on the profit, what you should be paid, and your shareholders' status. Here's how to work it out.

The company must be a domestic corporation or LLC with no more than 100 shareholders, all of them U.S. citizen or resident individuals, estates, certain trusts or certain exempt organizations, and it can have only one class of stock. A single nonresident alien, corporation or partnership shareholder rules it out. If a shareholder later becomes a nonresident, the S election ends that day and the company becomes a C corporation.

• Domestic: Formed under the law of a U.S. state. Foreign companies can't elect.
• 100 shareholders at most: Family members (descendants of a common ancestor within six generations, plus spouses) can be treated as one shareholder.
• Who can hold shares: U.S. citizens, green card holders and other resident individuals; estates; certain trusts (such as grantor trusts, QSSTs and ESBTs); certain exempt organizations. Partnerships, corporations (including C corporations), multi-member LLCs and nonresident aliens can't. A single-member LLC owned by an eligible individual can hold shares.
• One class of stock: Every share has the same rights to distributions and liquidation proceeds. Voting differences (voting and nonvoting shares) are fine. Paying owners in some way other than pro rata can be treated as a second class of stock.
• Ineligible corporations: Banks using the reserve method, insurance companies, DISCs and a few others.

Why does a nonresident shareholder end the election?

The tax code bars nonresident aliens from owning S corporation stock, and that test applies every day, not just when Form 2553 is filed. Any of these ends the election on the day it happens, and the year is split into an S short year and a C short year:

• A shareholder moves back to China or elsewhere and no longer meets the green card or substantial presence test;
• Shares are sold or given to parents or relatives abroad, or to a foreign company;
• A foreign investor, a corporation or a partnership buys in.

After a termination, the company generally can't re-elect for 5 years without IRS consent. If the termination was inadvertent, the shares can be moved back to an eligible holder and the company can ask the IRS for inadvertent termination relief, usually through a private letter ruling with a user fee, and the outcome is up to the IRS. If you hold a green card but want to file as a nonresident under the U.S.–China tax treaty, that can also put the S election at risk, so talk to us before you file.

Description: The left column is the shareholder or company situation, the middle says whether the company can elect or keep S status, and the right column says what to watch.

Situation	Can elect / keep S status?	Watch out for
All shareholders are U.S. citizens or green card holders	Yes	Check first if a green card is given up or lapses, or before claiming treaty nonresident status
A shareholder is on H-1B or similar and meets the substantial presence test	Yes	Must be a resident every year; F-1 students generally aren't in their first 5 years
A shareholder lives in China without U.S. tax residency	No	Consider a C corporation or a partnership
A shareholder is another company or a partnership	No	Hold the shares individually, or use a C corporation
You want to give investors preferred stock	No	One class of stock only; fundraising usually means a C corporation
A shareholder plans to move back abroad	May end on the move date	Transfer the shares or restructure before the move

File Form 2553 within 2 months and 15 days after the start of the tax year you want it to apply to, or at any time in the year before. A calendar-year company that wants S status from January 1, 2027 has until March 15, 2027. If you missed it and have reasonable cause, Rev. Proc. 2013-30 generally allows a late election within 3 years and 75 days of the intended effective date.

• All shareholders sign: An officer signs Form 2553, and every shareholder at the time of filing signs a consent (both spouses for shares held jointly).
• When a new company's year starts: The first tax year starts on the earliest of the date the company has shareholders, acquires assets or begins doing business. A company that starts business on November 7, 2026 and wants S status from day one has until January 21, 2027.
• How to file: Mail it to the IRS service center for your state, or fax it as the instructions describe. The IRS usually replies within about 60 days. Keep the acceptance letter; banks, immigration attorneys and future buyers will ask for it.
• Filing late: Use Form 2553 under Rev. Proc. 2013-30, write "FILED PURSUANT TO REV. PROC. 2013-30" at the top, attach a reasonable cause statement, and have the relevant shareholders sign. The company must have intended to be an S corporation and simply failed to file on time, and the request must come within 3 years and 75 days.
• Past 3 years and 75 days: If the company and every shareholder have filed consistently as an S corporation, at least 6 months have passed since the first Form 1120-S was filed, and the IRS hasn't raised a problem, relief may still be available; otherwise it generally takes a private letter ruling with a fee.

Description: Left to right in time order, showing the earliest filing date, the deadline and the late-relief window.

When	What happens
Any time in 2026	You can file early, effective January 1, 2027
2027-01-01	S status begins; start paying the owner through payroll
2027-03-15	Last day to file Form 2553 (2 months and 15 days); also the due date of the 2026 Form 1120-S
Around May 2027	The IRS usually replies within about 60 days
Mid-March 2030	End of the Rev. Proc. 2013-30 relief window (3 years and 75 days from the effective date)

A shareholder who works in the S corporation must be paid a reasonable salary through payroll, with payroll taxes withheld and paid, before taking the rest of the profit as distributions. The IRS has no formula; the question is what your work would be worth in the market. If the salary is too low or there isn't one, the IRS can reclassify distributions as wages and assess payroll tax, penalties and interest.

• Setting a reasonable salary: Look at your training and experience, your duties and hours, what similar jobs pay in your industry and area, and how much of the company's income comes from your own work. When the income mostly comes from your personal services (consulting, design, healthcare, contract software), the salary usually needs to be a larger share of profit.
• Running payroll: Real payroll on a fixed schedule, withholding federal and state income tax plus Social Security and Medicare. Form 941 every quarter, Form 940 and W-2s every year; in North Carolina, register for NC-5 withholding and NCUI unemployment insurance (see yclcpa.com/payroll).
• The payroll tax: 7.65% from the employee and 7.65% from the company, 15.3% in total. Social Security applies up to $184,500 in 2026, Medicare has no cap, and high earners owe an extra 0.9% Medicare tax.
• Health insurance: For a shareholder who owns more than 2%, company-paid health insurance is added to W-2 wages (generally without Social Security and Medicare tax) and can be deducted on the personal return.
• Retirement plans: Solo 401(k) and similar contributions are based on W-2 wages, so a very low salary also limits what you can save.
• Distributions: After salary, profit can be distributed without payroll tax, but strictly pro rata by shares; one owner can't take more than their share.

The savings depend on the gap between profit and a reasonable salary. The bigger the gap, the more you save. But an S corporation adds payroll, Form 1120-S and state costs, and your salary doesn't count as qualified business income, which shrinks the 20% QBI deduction. If there isn't much profit left after a reasonable salary, it usually isn't worth it.

Example (hypothetical numbers, to show the method): A single filer with no other income, using 2026 federal brackets and the $16,100 standard deduction, in a business that isn't a specified service trade or business, so the 20% QBI deduction applies. The left side is a single-member LLC taxed as a sole proprietorship; the right side is the same profit with an S election and the salary shown. Only federal income tax plus Social Security and Medicare are counted, not state tax. The S corporation's extra costs (payroll service, Form 1120-S and NC CD-401S preparation, the $200 NC minimum franchise tax, unemployment taxes) are assumed at $2,500 a year.

Description: Each row is a profit level and an assumed reasonable salary, showing sole-proprietor self-employment tax, S corporation payroll tax, the change in income tax, and the net annual saving after extra costs.

Profit before owner's salary	Assumed reasonable salary	Sole proprietor SE tax	S corp payroll tax (both halves)	Social Security and Medicare saved	Extra income tax (smaller QBI, etc.)	Net saving per year (after $2,500 of costs)
$40,000	$32,000	$5,652	$4,896	$756	$418	About −$2,162 (not worth it)
$100,000	$50,000	$14,130	$7,650	$6,480	$2,062	About $1,918
$200,000	$90,000	$28,234	$13,770	$14,464	$4,936	About $7,028

How the numbers work:

1. Sole proprietor SE tax = profit × 92.35% × 15.3% (the Social Security part stops at $184,500). For $100,000: $100,000 × 92.35% × 15.3% = $14,130.
2. S corporation payroll tax = reasonable salary × 15.3% (half from you, half from the company). For a $50,000 salary: $7,650.
3. Why income tax goes up: A sole proprietor deducts half of SE tax, and QBI is based on the whole profit. In an S corporation, QBI is only the K-1 profit, not your salary. In the $100,000 case the QBI deduction falls from about $15,367 to about $9,235, adding about $2,062 of income tax.
4. Net saving = Social Security and Medicare saved − extra income tax − extra costs.

Three things to take from the table:

• Around $40,000 of profit doesn't pay: The salary takes most of the profit, and the tax saved doesn't cover the extra costs.
• Savings grow with profit, but not forever: Social Security has a wage base, so above it the S corporation saves only the 2.9% Medicare piece.
• Don't squeeze the salary to save tax: The salaries in the table are assumptions. Yours has to fit your role and the market; setting it low is a bet that the IRS won't look.

An S corporation files Form 1120-S every year. For a calendar-year company it's due March 15 (the 2026 return is due March 15, 2027), extendable 6 months to September 15 with Form 7004, and every shareholder gets a K-1 by the same date. Shareholders report from the K-1, and attach Form 7203 to figure basis if they claim a loss, receive a distribution, sell shares or are repaid a loan.

• Late filing penalty: A late Form 1120-S is penalized per shareholder, per month. For returns due in 2027 it's $260 per shareholder per month, up to 12 months. Two shareholders and three months late is $1,560, even if the company owes no tax.
• The K-1: Schedule K-1 (Form 1120-S) shows ordinary business income, interest, dividends, capital gains, section 179 deductions, distributions and more. For how to read it and what to do when it's late, see yclcpa.com/k1.
• What shareholder basis is: Your tax investment in the company. It starts with the cash and property you put in, goes up with income passed through to you, and goes down with distributions, losses and nondeductible expenses. Money you lend the company directly gives you separate debt basis; a bank loan you guarantee doesn't.
• When basis runs out: Losses above basis aren't deductible yet and carry forward. Distributions above basis are taxed as capital gain. "Distributions aren't taxed" is only true while you have basis.
• Form 7203: Tracks stock and debt basis year by year. The company doesn't track your basis for you; the shareholder (or your CPA) maintains it every year.

The One, Big, Beautiful Bill, signed July 4, 2025, made the 20% QBI deduction permanent instead of letting it expire after 2025. The rate stays at 20% (the House version proposed 23%, which wasn't enacted). The phase-in range is wider, and starting in 2026 there's a new $400 minimum deduction.

• Permanent: Section 199A was scheduled to end after 2025. It no longer has an end date.
• Thresholds and phase-in (2026): Below $201,750 of taxable income ($403,500 married filing jointly), you generally get 20% of qualified profit. Above that, specified service businesses (consulting, health, law, accounting, financial services and others) phase out, and other businesses become subject to the wage and property limits. The phase-in range widened from $50,000 / $100,000 to $75,000 / $150,000, so in 2026 it's fully phased in at $276,750 ($553,500 joint).
• The new minimum: From 2026, if you have at least $1,000 of QBI from businesses you materially participate in, the deduction is at least $400. Both amounts are indexed for inflation after 2026.
• What it means for an S corporation: Your salary isn't QBI. At higher incomes, above the threshold, the W-2 wages the company pays also support the wage limit. So the salary decision should weigh payroll tax and QBI together.

North Carolina follows the federal S election; there's no separate state election, and a federal termination ends NC status at the same time. NC S corporations file Form CD-401S, due April 15 (a month after the federal return), and pay franchise tax. Shareholders pay NC income tax at the individual rate (3.99% in 2026). The company can also elect each year to pay NC tax for all shareholders at the entity level (a "Taxed S Corporation"), which makes that state tax a business deduction federally.

• CD-401S: Due the 15th day of the 4th month after year-end, April 15 for a calendar-year company. With a federal extension, check "Federal Extension" on the CD-401S to get the automatic state extension.
• Franchise tax: The base is net worth (total assets without reduction for accumulated depreciation, minus liabilities). An S corporation pays $200 on the first $1,000,000 and $1.50 per $1,000 above that, with a $200 minimum. An LLC that elected S status pays it too.
• Shareholders' NC tax: The NC individual rate is 3.99% for 2026 and drops to 3.49% for 2027–2029 under the state budget signed in July 2026 (S.L. 2026-41).
• Out-of-state shareholders: The company files Form NC-NA for each nonresident shareholder (the shareholder's agreement to file and pay NC tax), or can file a composite return for nonresident shareholders.
• The PTE election (Taxed S Corporation): Made each year on a timely filed CD-401S (including extensions), and it can't be revoked after the due date. The company pays NC tax at the individual rate for all shareholders, and shareholders deduct that income on their own NC returns so it isn't taxed twice.
• Is the PTE election worth it? The federal SALT deduction cap is $40,400 for 2026 and phases back toward $10,000 once MAGI passes $505,000. State tax paid by the entity isn't subject to that cap. Owners with high income, or who take the standard deduction, usually come out ahead; owners whose state taxes already fit under the cap and who itemize gain less. Run the numbers each year before filing.

An S election often costs more than it saves when profit is modest, when you expect losses or need loan-funded basis to deduct them, when an owner is foreign or plans to move abroad, when you plan to raise venture money, when owners don't split money pro rata, or when you operate somewhere that doesn't recognize S status, such as New York City.

• Modest profit: If little is left after a reasonable salary, the savings don't cover the extra costs (see Figure 3).
• Expected losses funded by loans: S corporation shareholders don't get basis for the company's bank debt; partners in a partnership can include their share of partnership liabilities in basis, which makes losses easier to use. Real estate generally doesn't belong in an S corporation: distributing appreciated property to a shareholder is taxed at fair market value, so it's hard to get out later.
• Foreign owners, or owners moving abroad: Nonresidents can't be shareholders, and moving abroad can end the election. Consider a C corporation (see yclcpa.com/ccorp) or a partnership.
• Fundraising: Venture investors usually want preferred stock and invest through funds (partnerships) or corporations, none of which an S corporation allows. The section 1202 small business stock exclusion also requires a C corporation.
• Owners who don't split money pro rata: A partnership can agree to special allocations; an S corporation's distributions must follow share ownership, day by day.
• Places that don't recognize S status: New York City doesn't recognize S corporations, which pay the NYC General Corporation Tax; New York State requires a separate Form CT-6 election. If you do business in other states, check their rules first.

Start with the profit, what you do in the business and every shareholder's status, then decide whether and when to elect. The common situations are below.

• Situation A: A single-member LLC with steady profit above about $80,000, and you do the work. Work out a reasonable salary and the net saving; if it pays, file Form 2553 within 2 months and 15 days of the year you want and start payroll.
• Situation B: It's past March 15 and you want S status for this year. With reasonable cause, file late under Rev. Proc. 2013-30; otherwise start next year by filing before year-end or by the next March 15.
• Situation C: You elected S status but never ran payroll. Set up a reasonable salary and run payroll from now on; whether to adjust earlier years depends on the amounts and the risk.
• Situation D: A shareholder lives in China, or plans to move back. The company can't elect, or the shares need to be dealt with before the move. Use a C corporation or partnership, or have eligible U.S. shareholders hold the stock.
• Situation E: You're a C corporation thinking of switching to S. You can file Form 2553, but selling assets that had already appreciated at conversion within 5 years triggers corporate-level built-in gains tax, and leftover C corporation earnings plus too much passive income can cause trouble. Review first.