LLC vs S-Corp vs C-Corp for a Miami Small Business: How to Choose

The three labels get mixed together in conversation, but they answer two different questions. LLC and corporation answer the STATE law question: what kind of legal entity do you have. S corporation and C corporation answer the FEDERAL TAX question: how does the IRS classify that entity for income tax. A Florida LLC is a legal entity registered with the Sunbiz Division of Corporations, which describes itself as the State of Florida's official business entity index and commercial activity website.^[8] The IRS then classifies that LLC one of three ways depending on ownership and any election you file. A C corporation, by contrast, is the default federal treatment of an incorporated business. An S corporation is not a separate legal entity at all: it is an election under section 1362(a) that a corporation or an entity eligible to be treated as a corporation makes on Form 2553.^[1] Getting the entity choice right is the first step in new business formation, and it drives every filing you own for the rest of the business.

A Florida LLC is created by filing Articles of Organization through the Sunbiz e-file system. The Division of Corporations processes over 3.5 million business entities filed in Florida.^[8] Once the LLC exists, the federal default is set by ownership. A single-owner LLC is disregarded, so its income lands on the owner's individual return. A multi-owner LLC defaults to a partnership. Neither default requires any IRS election. On top of that federal default sits a federal reporting layer added by the Corporate Transparency Act. Sunbiz notes: "Effective January 1, 2024, there is a Federal requirement for the Reporting of Beneficial Ownership information."^[7] That obligation is separate from state formation and separate from any S or C election you might file later. For an ongoing accounting picture that keeps every layer straight, we handle books through our small business accounting service and the compliance side through business tax return preparation.

An S corporation is a federal tax classification, not a legal entity. The IRS describes Form 2553 as the form a corporation, or other entity eligible to be treated as a corporation, files to make an election under section 1362(a) to be an S corporation.^[1] Two paths reach the S corp result. A newly incorporated business files Form 2553 directly. An LLC first elects to be treated as a corporation on Form 8832, the Entity Classification Election, and then files Form 2553 to become an S corp.^[5] In practice the IRS accepts a properly completed Form 2553 alone as a deemed election of association status for an eligible entity, so the two-form sequence is often collapsed into one filing. Effective June 18, 2019, the filing address changed for Form 2553 filers located in certain states, so the current instructions decide where the form goes.^[3] Every S election also requires an EIN, which any new entity gets on Form SS-4.^[6]

A C corporation is the federal default whenever a business is incorporated and no S election has been made. The corporation files its own federal income tax return, pays tax on its profits at the entity level, and shareholders pay tax again on any dividends. That two-layer pattern is the C corp's downside for a small business with only a founder and family drawing pay. It is also, for a specific set of situations, the point: a real corporate wrapper is what allows preferred-stock rounds of venture financing, employee equity plans that include foreign employees or entity investors, and the qualified small business stock treatment described in QSBS Section 1202 gain exclusion. Miami tech founders talking to institutional investors almost always end up in a C corp for that reason. Miami restaurateurs and single-owner service firms almost never do.

The classic case for an S election is a profitable owner-operator who is paying self-employment tax on the full profit of a single-owner LLC. Electing S status lets the owner split take-home into a reasonable salary (subject to payroll tax) and a distribution (not subject to payroll tax). The Watson case and the IRS reasonable-compensation framework in S-corp reasonable compensation draw the line for how low that salary can go. The S election is not a fit for every business. A nonresident alien owner disqualifies the whole election, which is why foreign-owned Florida LLCs almost never file Form 2553.^[1] A business that wants to raise institutional capital, issue preferred stock, or bring in an entity investor also should not elect S: those investors want a real C corporation. Losses are another consideration. An S corp shareholder can deduct losses only up to basis, tracked in a shareholder basis workpaper, described in Form 7203 shareholder basis.

Owner pay is where the three entities feel most different in practice. A single-owner LLC owner takes owner draws: no payroll, and the full net profit is subject to self-employment tax when reported on the individual return. A multi-owner LLC owner takes guaranteed payments and profit allocations, again with self-employment tax on active earnings. An S corp owner-employee runs actual payroll: the corporation issues a wage statement to the owner for a reasonable salary, withholds and pays employment taxes, and distributes the remainder as an S corp distribution reported to the shareholder. A C corp owner-employee is also on payroll, and any additional cash out arrives as a dividend that gets taxed again at the shareholder level. The payroll layer that an S election adds is not free: it takes real bookkeeping and real payroll runs, which is why our payroll services pairs with an S election rather than being an afterthought.

Whichever entity you land on, ongoing compliance is a stack, not a single filing. Every Florida entity files a Sunbiz annual report each year to stay active with the Division of Corporations.^[8] Every entity that meets the federal Corporate Transparency Act criteria files beneficial ownership information with FinCEN under the requirement effective January 1, 2024.^[7] An S corp adds a federal S corporation return on Form 1120-S^[4] and a per-shareholder reporting statement for every owner. A C corp files its own federal corporate return and issues a dividend information return when it pays dividends, as covered in Form 1099-DIV reporting thresholds. A qualified subchapter S subsidiary election is a separate filing on Form 8869 when an S corp acquires another S corp.^[9] Missing any layer of this stack costs more in remediation than the layer itself ever cost to keep current.

Start with your ownership and your capital plan, not with a tax outcome. If the owners are all US persons and the business will be self-funded or bank-financed, a Florida LLC is the default answer, with an S election added once profit clears the self-employment tax threshold that makes payroll worth running. If any owner is a nonresident alien, or if the plan is to raise institutional capital, a C corporation, usually a Delaware C corp, is the real answer, and the Florida operating entity may sit under it. Bilingual owners in Miami running professional services firms almost always land on the LLC plus S election path; foreign-owned import or e-commerce entities almost always stay on a Florida LLC without an S election and file the required cross-border returns instead. Our advisory solutions engagement scopes the choice against your real facts before you file anything at Sunbiz, and our professional services tax help page describes how that plays for the firms we most often work with.