What is my tax classification and what does it mean?

Your tax classification is how the IRS taxes your business, and it can differ from what you formed under state law. Unless you elect otherwise, an LLC with one owner is disregarded and reported on the owner's return, an LLC with two or more members is a partnership, and a corporation is a C corporation until it files Form 2553 to be an S corporation.

Last reviewed September 23, 2026 · Tax year 2026 · Federal and Florida

Florida law decides what you formed. An LLC is formed when its articles of organization take effect, a corporation when its articles of incorporation are filed unless they set a different effective date. Federal tax law decides how the business is taxed, in one of four classifications.

The four classifications

• Disregarded entity. A business with one owner that is not a corporation. The IRS treats it the same way as a sole proprietorship, and an individual owner reports it on Schedule C, E or F with Form 1040.
• Partnership. A business with two or more owners that is not a corporation. It files Form 1065 and pays no income tax itself; the partners are taxed on the profit.
• C corporation. It files Form 1120 and pays its own federal tax, 21% of taxable income.
• S corporation. A corporation, or an LLC taxed as one, that has elected on Form 2553. It files Form 1120-S and generally pays no federal income tax; shareholders report its income.

When each return is due is in Federal income tax deadlines for businesses.

The defaults

A business incorporated under a state statute is a corporation for federal tax, and a C corporation unless it makes an S election.

An LLC that files nothing is a partnership if it has two or more members and disregarded if it has one. A disregarded LLC is still treated as a corporation for employment taxes on any employees it has; the owner is not its employee and pays self-employment tax instead.

Changing it with Form 8832

An LLC that wants to be taxed as a corporation, or to change its classification, files Form 8832, signed by every owner or by an authorized officer, manager or member. The effective date can be no more than 75 days before the filing date and no more than 12 months after it.

After a change, the entity cannot change by election again for 60 months from the effective date, unless the IRS permits it after more than 50% of the ownership passes to new owners. A new entity's election effective on the day it was formed does not count as a change.

Becoming an S corporation with Form 2553

A domestic corporation qualifies if it has no more than 100 shareholders, all individuals (or estates, certain trusts and certain exempt organizations), none a nonresident alien, and one class of stock, and is not an ineligible corporation such as certain banks and insurance companies. Every shareholder must consent.

The election is due during the year before, or by the 15th day of the third month of the year it covers. For a calendar-year business that wants S status for 2027, that is Monday, March 15, 2027. An election filed later generally counts for the following year, unless the IRS grants late election relief for reasonable cause.

An LLC does not also file Form 8832; a timely Form 2553 counts as its election to be taxed as a corporation. Once an S election is terminated or revoked, the corporation cannot elect again before its fifth tax year after the first year the termination took effect, unless the IRS consents.

Where to check yours

Your last federal return shows it: Schedule C, E or F, Form 1065, Form 1120-S or Form 1120. An accepted election also leaves a notice, CP261 for Form 2553 and CP277 for Form 8832.

Florida

Florida has no personal income tax, and its corporate income tax does not reach proprietorships, partnerships or LLCs taxed as partnerships. A disregarded single-member LLC files no separate Florida return; if a corporation owns it, its income goes on the corporation's Florida return. A C corporation, including an LLC taxed as one, files a Florida corporate income tax return. An S corporation is taxed by Florida only on amounts taxed federally under IRC § 1374 or § 1375, built-in gains and excess passive investment income, and files a Florida return only in a year it pays that federal tax.

Sources

1. Treas. Reg. § 301.7701-2, business entities; definitions
2. Treas. Reg. § 301.7701-3, classification of entities that are not corporations
3. IRC § 1361, S corporation defined
4. IRC § 1362, election; revocation; termination
5. IRC § 1363, effect of election on S corporation
6. IRC § 1366, pass-thru of S corporation items to shareholders
7. IRC § 701, partners, not partnership, subject to tax
8. IRC § 11, tax imposed on corporations
9. IRS, Limited liability company (LLC)
10. IRS, Form 8832, Entity Classification Election, with instructions (PDF)
11. IRS, Instructions for Schedule C (Form 1040)
12. IRS, Instructions for Form 2553
13. IRS, Understanding your CP261 notice (S corporation election accepted)
14. IRS, Understanding your CP277 notice (Form 8832 election accepted)
15. Florida Statutes § 605.0201, formation of limited liability company
16. Florida Statutes § 607.0203, incorporation
17. Florida Constitution, art. VII, § 5 (no tax on the income of natural persons)
18. Florida Statutes § 220.02, legislative intent
19. Florida Statutes § 220.03, definitions
20. Florida Statutes § 220.13, adjusted federal income and taxable income defined
21. Florida Department of Revenue, Corporate Income Tax

This article is general educational information, not tax, legal, or accounting advice, and does not create a client relationship. Tax law changes and depends on your specific facts. Information is current as of September 23, 2026 for tax year 2026; verify before acting. Consult a qualified CPA, EA, or attorney about your situation.

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