S corp vs LLC in Florida: how the entity and the election fit

An LLC is a legal entity. An S corporation is a tax election.

The comparison "S corp vs LLC" mixes two different layers. A limited liability company (LLC) is, in the IRS's words, "a business structure allowed by state statute." In Florida you create it by filing with the Division of Corporations (Sunbiz), and Florida law sets the protections and duties that come with it.

An S corporation is a federal tax status under Subchapter S of the Internal Revenue Code, requested on Form 2553. A corporation, or an entity eligible to be treated as one, files that form. An LLC is eligible, so a Florida LLC can be taxed as an S corporation and still be an LLC on the state's records.

An S corporation generally pays no federal income tax at the entity level. It files Form 1120-S and issues a Schedule K-1 to each shareholder, who reports that share on a personal return. The practical question is narrower: keep the LLC's default tax treatment, or elect S status.

How the IRS taxes an LLC if you do nothing

• Single-member LLC: disregarded as separate from its owner for income tax, so an individual owner generally reports the business on their own return. For employment taxes and certain excise taxes, the LLC is still a separate entity.
• Two or more members: classified as a partnership, which files its own return and issues K-1s.

To be taxed as a corporation, an LLC uses Form 8832, described in the IRS guidance on LLCs. That election cannot take effect more than 75 days before it is filed, nor more than 12 months after. An LLC that files a timely Form 2553 does not need a separate Form 8832: the IRS treats the eligible entity as a corporation from the effective date of the S election.

Why some owners look at the S election

The conversation usually starts with self-employment tax. An individual who owns and works in an LLC taxed under the default rules generally pays self-employment tax of 15.3% on net earnings: 12.4% for social security and 2.9% for Medicare. The social security part applies up to an annual wage base, $184,500 for 2026. Schedule SE is required once net earnings reach $400.

In an S corporation, an owner who works in the business is an employee. Wages run through payroll, with social security tax of 6.2% from the employer and 6.2% from the employee, plus 1.45% Medicare on each side. Profit left after wages passes through on the K-1 and, in general terms, is not subject to self-employment tax. That difference is what draws attention to the election.

The IRS sets the limit: "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 to the corporation." Its factors include training and experience, duties, time devoted to the business and what comparable businesses pay.

The election also brings costs: quarterly Form 941, annual Form 940, Forms W-2, Florida reemployment tax reports, and a separate Form 1120-S. It interacts with other rules too; for example, the IRS states that reasonable compensation from an S corporation is not qualified business income (QBI) for the QBI deduction. No single profit level settles the question for every business.

Who can own an S corporation, and why international owners should look closely

The IRS requires that an S corporation:

• Be a domestic corporation, or a domestic entity eligible to be treated as one.
• Have no more than 100 shareholders. Under specific rules, family members can count as one.
• Have only allowable shareholders: individuals, certain trusts and estates, and certain exempt organizations. Partnerships, corporations and nonresident aliens are not allowed.
• Have one class of stock, meaning identical rights to distribution and liquidation proceeds.
• Not be an ineligible corporation, such as certain financial institutions and insurance companies.

For federal tax purposes, an individual who is not a U.S. citizen is a nonresident alien unless they meet the green card test or the substantial presence test. That is a tax definition, separate from any visa category. One nonresident alien shareholder is enough to make the company ineligible. If an S corporation later stops qualifying, for example because shares pass to a nonresident alien, the election terminates automatically that day, and a new election generally needs IRS consent for several years.

Foreign-owned LLCs have their own reporting: a U.S. single-member LLC owned by a foreign person is treated as a corporation for Form 5472 purposes, and the Form 5472 instructions set a $25,000 penalty for failing to file it when due.

What Florida adds to the picture

No personal income tax. The Florida Department of Revenue states that "Florida does not impose a personal income tax." Income passing through an LLC or S corporation to a Florida resident is not taxed again by the state at the individual level, although other states may tax it if the business or owner has connections there.

Corporate income tax. Florida's corporate income/franchise tax applies to corporations and to entities taxed federally as corporations, at 5.5% for tax years beginning on or after January 1, 2022, after a $50,000 exemption. An S corporation files a Florida corporate return only when it pays federal income tax on line 23c of Form 1120-S, which happens in limited cases such as the built-in gains tax or the excess net passive income tax. See the Department of Revenue corporate income tax page.

Reemployment tax. An LLC filing federally as an S corporation is treated as a corporation, so members who perform services are employees reported on Form RT-6. The Department of Revenue may reclassify distributions as wages when an officer who works in the business reports zero wages but receives a significant distribution.

Annual report. The S election does not change your Sunbiz filings: the company stays an LLC or a corporation on the state record. The annual report is filed between January 1 and May 1. The fee is $138.75 for an LLC and $150 for a profit corporation, with a $400 late fee after May 1. An entity that has not filed by the third Friday of September is administratively dissolved or revoked.

Deadlines for the S election

Form 2553 must be filed 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.

• Existing calendar-year company: for S status from January 1, 2027, file at any time during 2026 and no later than March 15, 2027, a Monday.
• New company: the clock starts on the first day of its first tax year. In the IRS example, a calendar-year corporation whose first tax year begins January 7 must file between January 7 and March 21. An election made before the first tax year begins is not valid.
• Signatures: an authorized officer signs, and every shareholder consents. An unsigned form is not considered timely filed.
• Late filing: a late election generally takes effect the following tax year. Relief may be available under Rev. Proc. 2013-30 when less than 3 years and 75 days have passed since the intended effective date, there was reasonable cause, and the company and all shareholders reported consistently with S status. See the Form 2553 instructions.

An S corporation then files Form 1120-S by the 15th day of the third month after its tax year ends: March 15, 2027 for calendar year 2026.

Questions worth settling before you decide

1. Who owns the company today, and who might own part of it later?
2. How much of the profit comes from the owners' own work, and how much from staff, equipment or capital?
3. What would reasonable pay for that work be, and can the business support regular payroll?
4. Are investors with different economic rights, or filings in other states or countries, on the horizon?

A licensed professional can run these questions against your actual numbers. This article is general information, not a recommendation for any reader's situation.

Frequently asked questions

Sources

General information, not tax, legal or immigration advice for your situation. Figures and dates were checked on official sources on the date shown and can change; a licensed CPA has not yet reviewed this draft. MTroncone CPA is not affiliated with the IRS or any government agency.