What Is an S-Corp Election and Should Your Business Make One?

An S-Corp is not a type of business entity -- it is a federal tax election. You file IRS Form 2553 to have your existing LLC or corporation taxed under Subchapter S of the Internal Revenue Code. The main payoff is avoiding self-employment tax on business profits that exceed a reasonable salary, which can save a profitable small business $5,000 to $20,000 or more per year in FICA taxes.

What an S-Corp Actually Is

Most people talk about S-Corps as if they are a type of company you form at the state level. They are not. You form an LLC or a corporation with your state. Then, separately, you ask the IRS to tax that entity under Subchapter S by filing Form 2553.

This distinction matters because it means an LLC and an S-Corp are not competing options. A single-member LLC taxed as a sole proprietorship can elect S-Corp status and keep its LLC legal protections while changing only how it is taxed at the federal level. A C-corporation can likewise elect S status to avoid double taxation, provided it meets the eligibility requirements.

The savings come from splitting your business income into two buckets: salary and distributions. Only the salary portion is subject to FICA taxes (Social Security at 12.4% and Medicare at 2.9%, totaling 15.3% on the first $168,600 of wages in 2024, with the 2.9% Medicare portion continuing on all wages above that).

Distributions -- the remaining profit you take out after paying yourself a salary -- are not subject to FICA. You still owe income tax on them, but you skip the 15.3% self-employment tax.

A concrete example: Your consulting LLC earns $130,000 in net profit. As a sole proprietor, you pay self-employment tax on the entire $130,000: roughly $18,400 in combined Social Security and Medicare taxes (after the 50% deduction adjustment).

With an S-Corp election, you pay yourself a reasonable salary of $70,000. FICA on the salary: approximately $10,710. The remaining $60,000 flows to you as a distribution with no FICA. Your annual FICA savings: roughly $7,700. Over five years, that is $38,500 back in your pocket -- real money that would otherwise go to payroll taxes.

The IRS knows about this tax advantage, and it watches for abuse. If you earn $200,000 through your S-Corp and pay yourself a salary of $20,000, the IRS will reclassify your distributions as wages and assess back taxes, penalties, and interest.

The IRS has not published a specific formula, but Fact Sheet 2008-25 lists the factors it considers:

• Training, experience, and duties
• Time and effort devoted to the business
• What comparable businesses pay for similar services
• Compensation history and dividend history
• Whether a formula exists for setting compensation

A marketing consultant earning $150,000 through an S-Corp cannot set a salary of $30,000 when the market rate for that work is $80,000-$100,000. The salary must reflect what you would pay someone else to do your job. Getting this number right is one of the primary reasons S-Corp owners hire a CPA.

Eligibility Requirements

Not every business can make the S-Corp election.

• A domestic corporation (or an entity eligible to be treated as one, including an LLC that elects corporate treatment)
• Limited to 100 shareholders (spouses and their estates count as one shareholder)
• Owned only by individuals, certain trusts, and estates -- no partnerships, no corporations, no non-resident aliens
• Structured with a single class of stock (differences in voting rights are permitted, but all shares must have identical rights to distributions and liquidation proceeds)
• Not an ineligible corporation type (banks using the reserve method, insurance companies)

If you are raising venture capital, the S-Corp election is usually a non-starter. VCs typically want preferred stock with different economic rights, which violates the one-class-of-stock rule. They also often invest through fund entities (partnerships or LLCs), which cannot be S-Corp shareholders.

For calendar-year businesses, Form 2553 must be filed by March 15 to take effect for the current tax year. More precisely, the deadline is two months and 15 days after the beginning of the tax year.

For newly formed entities, the deadline is two months and 15 days after the date of formation or the date the entity first has shareholders, assets, or begins conducting business -- whichever comes first. If you incorporate on September 10, your deadline for a current-year election is November 24.

You can also file Form 2553 at any time during the prior tax year to have the election take effect at the start of the following year.

Late Election Relief

Missed the deadline? You may still qualify for relief. Revenue Procedure 2013-30 (expanded by Revenue Procedure 2022-19) provides a simplified process for requesting a late S-Corp election without the expense of a private letter ruling.

The requirements for relief:

• The entity intended to be treated as an S-Corp from the requested effective date
• The only reason it did not qualify was the late filing
• The entity and all shareholders reported their income consistently with S-Corp status for all affected years
• The request is made within 3 years and 75 days of the intended effective date

If you fall outside that window, you can still request a private letter ruling from the IRS, but those cost $3,500 or more in filing fees alone, plus professional fees. A CPA or tax attorney experienced with entity elections can assess which path makes sense.

When the S-Corp Election Makes Sense

The break-even point where S-Corp tax savings outweigh the extra costs depends on your net income after paying yourself a reasonable salary. As a rough threshold, most CPAs recommend considering the election once your net business income consistently exceeds $40,000 to $50,000 above what you would pay yourself as a reasonable salary.

Below that level, the FICA savings may not justify the added compliance costs: running payroll, filing a separate corporate tax return (Form 1120-S), and the additional accounting fees.

Situations where S-Corp election typically pays off:

• Solo consultants, freelancers, or agency owners netting over $80,000-$100,000 annually
• Professional practices (accountants, attorneys, physicians in states that allow it)
• Established small businesses with stable, predictable income
• Buyers acquiring an existing profitable business who want to restructure its tax treatment

• Low or unpredictable income. If you are just starting out and earning $40,000, the compliance costs eat into any savings.
• Venture-backed startups. The single class of stock requirement and shareholder restrictions conflict with typical VC deal structures.
• Businesses with plans for flexible ownership. If you want to bring in corporate investors, foreign partners, or create multiple classes of equity, S-Corp status limits your options.
• Real estate holding companies. Losses from rental real estate are generally passive, and the S-Corp structure adds complexity without clear self-employment tax benefits (rental income is not subject to self-employment tax even in a sole proprietorship).

S-Corp vs. LLC: They Are Not Mutually Exclusive

The most common misconception is that you must choose between an LLC and an S-Corp. In practice, the most popular structure for small businesses is an LLC that has elected S-Corp tax treatment. You get the liability protection and operational flexibility of the LLC at the state level, combined with the FICA tax savings of Subchapter S at the federal level.

The sequence: form your LLC with the state, then file Form 2553 with the IRS. Your LLC operating agreement stays in place. Your state treats you as an LLC. The IRS treats you as an S-Corp for income tax purposes only.

Electing S-Corp status adds real administrative overhead compared to a simple sole proprietorship or single-member LLC.

• Payroll. You must run payroll for yourself (and any other shareholder-employees), which means withholding income taxes, paying employer and employee FICA, filing quarterly payroll tax returns (Form 941), and annual W-2s and W-3s.
• Separate tax return. The S-Corp files Form 1120-S, due March 15 (or the 15th day of the third month after the fiscal year ends). Late filing carries a penalty of $220 per shareholder per month, up to 12 months.
• Schedule K-1. The S-Corp issues a K-1 to each shareholder showing their share of income, deductions, and credits. You report this on your personal return.
• Shareholder basis tracking. Each shareholder must track their tax basis in the S-Corp, which affects the deductibility of losses and the tax treatment of distributions.
  Technical detail

  IRC Section 1366 governs the pass-through of S-Corp income and loss items to shareholders. IRC Section 1367 provides the rules for adjusting shareholder basis. Losses are deductible only to the extent of the shareholder's basis.
• Reasonable compensation documentation. Keep records supporting your salary level -- job descriptions, industry compensation surveys, comparable salary data.

State Treatment Varies

Not every state follows the federal S-Corp election. Some states impose their own taxes or requirements on S-Corps:

• California charges a 1.5% tax on S-Corp net income (minimum $800 franchise tax).
• New York City does not recognize the S election and taxes S-Corps as C-Corps for city tax purposes.
• New Hampshire taxes S-Corp income at the state business profits tax rate.
• Tennessee (prior to 2021) taxed S-Corp distributions as income under the Hall Tax.

Some states require a separate state-level S election filing in addition to the federal Form 2553. Check with a CPA familiar with your state's rules before assuming your federal election carries over.