LLC Meaning: Limited Liability Company Definition & IRS Taxes

LLC Ownership Rules and Eligible Members

Most states do not restrict ownership and permit single-member LLCs with only one owner. There is no maximum number of members. Because state rules vary, check with your state for local regulations on forming and running an LLC, as federal IRS publications do not govern state formation or state taxes.

• Permitted LLC members in most states: Individuals, corporations, other LLCs, and foreign entities.
• Businesses that generally cannot be LLCs: Banks, state-chartered banking entities with FDIC-insured deposits, and insurance companies.
• Special rules apply to foreign LLCs and nonprofit organizations that are organized as LLCs or that own LLCs.

• IRS: Limited liability company (LLC)
• IRS: Single member limited liability companies

How the IRS Classifies and Taxes an LLC by Default

The IRS does not have a standalone federal tax classification called an LLC. Under Treasury Regulations section 301.7701-3, the IRS classifies an LLC as a disregarded entity, a partnership, or a corporation depending on its member count and tax elections.

If an LLC has only one member and does not elect corporate taxation, the IRS treats it as an entity disregarded as separate from its owner for federal income tax purposes. It does not file a separate federal income tax return. An individual owner reports LLC income, deductions, gains, losses, and credits on Form 1040 or 1040-SR using Schedule C (Profit or Loss from Business), Schedule E (Supplemental Income and Loss), or Schedule F (Profit or Loss from Farming). If owned by a corporation or partnership, the single-member LLC is reported on the parent owner's return as a division.

A domestic LLC with two or more members is classified by default as a partnership and must file Form 1065 (U.S. Return of Partnership Income), unless it neither receives gross income nor pays or incurs any amount treated as a deduction or credit for federal tax purposes. Each member receives a Schedule K-1 (Form 1065) showing their pro-rata share of partnership items.

In IRS Statistics of Income for Tax Year 2023, partnerships filed over 4.5 million returns representing more than 30.2 million partners, with LLCs accounting for 72.7% of all U.S. partnerships and limited partnerships representing 9.7%. By our calculation from the IRS Statistics of Income Partnership Statistics for Tax Year 2023, the overall partnership pool averages about 6.7 partners per return.

• IRS: SOI tax stats
• IRS: S corporations

Special Tax Rules for Married Couples Who Own an LLC

Under Revenue Procedure 2002-69, a married couple can choose to treat their jointly owned LLC as either a disregarded entity or a partnership if three requirements are met. The LLC must be wholly owned by the husband and wife as community property under the laws of a U.S. state, foreign country, or U.S. possession, no other person can be considered an owner for federal tax purposes, and the entity cannot be treated as a corporation under Regulations section 301.7701-2. Changing their reporting position later is treated as a conversion of the entity.

The nine community property states recognized in IRS guidance are Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, and Wisconsin.

If a married couple owns an LLC in any of the other 41 non-community property states, the LLC must file as a partnership on Form 1065. Because an LLC is a state law entity, the IRS prohibits married LLC owners from electing qualified joint venture status.

• IRS: Single member limited liability companies
• IRS: Entities

Self-Employment, Employment, Excise Taxes, and Form W-9 TIN Rules

An individual owner of a single-member disregarded LLC is not an employee of the LLC. If the LLC operates a trade or business, the owner is subject to self-employment tax (Social Security and Medicare) on net earnings figured on Schedule C and Schedule SE (Form 1040 or 1040-SR). You must file an income tax return if net earnings from self-employment are $400 or more, using Form 1040-ES for quarterly estimated payments. April 15, 2027 is the deadline to file and pay Form 1040 taxes, with an extension available to October 15 to file.

Members of a partnership LLC are also self-employed when performing services for the partnership. General members pay self-employment tax on their distributive share of ordinary business income plus guaranteed payments. Qualifying limited partners do not pay self-employment tax on their distributive share of partnership income, but do pay it on guaranteed payments for services rendered.

Under final regulations (T.D. 9356) issued in August 2007, a single-member disregarded LLC is treated as a separate entity (a corporation) for employment taxes on wages paid after January 1, 2009, and for certain excise taxes accruing on or after January 1, 2008. However, the individual owner is still considered the employer for employment tax exceptions based on family relationship or religious affiliation, and is subject to backup withholding under section 3406.

For all federal income tax reporting, including Form W-9 (Request for Taxpayer Identification Number and Certification), a single-member disregarded LLC must provide the owner's Social Security Number (SSN) or the owner's EIN, never the LLC's own EIN. A single-member disregarded LLC without employees or excise tax liabilities does not need a federal EIN, though it can apply for one on Form SS-4 for banking, state tax laws, employees, excise taxes, or corporate elections. Multi-member LLCs always require a separate EIN.

• Employment tax forms filed under the single-member LLC's own name and EIN: Form 941, Form 940 (FUTA), Form 943, Form 944, and Forms W-2 and W-3.
• Excise tax forms filed under the single-member LLC's own name and EIN: Form 637 (Registration), Form 720, Form 730, Form 2290, Form 11-C, and Form 8849.

• IRS: Single member limited liability companies
• IRS: Limited liability company (LLC)

Electing Corporate Status and Changing Ownership

To be taxed as a C corporation, an LLC files Form 8832 (Entity Classification Election) and then files Form 1120 every year, whether it has taxable income or not, unless exempt under section 501. C corporations have no flow-through items to Form 1040. They pay corporate tax on taxable income, and distributions to members are taxed again to the extent of corporate earnings and profits (double taxation). A copy of Form 8832 must be attached to each direct and indirect owner's tax return for the election year.

A Form 8832 election cannot take effect more than 75 days before the filing date or more than 12 months after the filing date. Once an LLC elects to change its classification, it generally cannot elect to change again during the 60 months after the effective date (an initial election effective on the date of formation does not count toward this 60-month rule).

To be taxed as an S corporation, a qualifying LLC files Form 2553 signed by all shareholders. Under Regulations section 301.7701-3(c)(1)(v)(C), timely filing Form 2553 automatically deems the LLC to have elected corporate classification without needing to file Form 8832 first. An S corporation passes income, losses, deductions, and credits through to shareholders on Schedule K-1 (Form 1120-S) and Schedule E of Form 1040, remaining liable at the entity level only for tax on certain built-in gains and passive income. S corporations required to file 10 or more returns of any type in a calendar year must e-file Form 1120-S.

When an LLC without a corporate election drops to one member, it converts to a disregarded entity. When a single-member disregarded LLC adds a member, it converts to a partnership. Electing to change classification triggers deemed asset transactions under IRS Publication 3402:

• S corporation eligibility: Domestic entity, no more than 100 shareholders (individuals, certain trusts, and estates only, no partnerships, corporations, or non-resident aliens), one class of stock, and not an ineligible financial institution, insurance company, or DISC.
• Partnership to corporation: Partnership contributes all assets and liabilities to the corporation for stock, then immediately liquidates by distributing the stock to partners.
• Corporation to partnership: Corporation distributes all assets and liabilities to shareholders in liquidation, who immediately contribute them to a new partnership.
• Corporation to disregarded entity: Corporation distributes all assets and liabilities to its single owner in liquidation.
• Disregarded entity to corporation: Owner contributes all assets and liabilities to the corporation in exchange for stock.

• IRS: S corporations
• IRS: Publication 3402 (03/2020), Taxation of Limited Liability Companies

Worked Examples: How LLC Taxes Work in Real Scenarios

These three worked scenarios adapted from IRS Publication 3402 and Revenue Ruling 99-5 show how the rules work in practice.

Scenario 1: Single-member LLC with employees. Irene is the sole owner of a domestic disregarded LLC that employs Kent, Patricia, and Tex. The LLC must get an EIN via Form SS-4, withhold income and FICA taxes, pay FUTA taxes, and file Form 941, Form 940, and Forms W-2 under the LLC's own name and EIN. Irene is not an employee of the LLC. She reports business net profit on her Form 1040 Schedule C, figures self-employment tax on Schedule SE, and puts her personal SSN on any Form W-9.

Scenario 2: Adding a partner by selling 50% of an existing LLC (Deemed Asset Sale). Bart, an unrelated person, pays Alain $5,000 personally for a 50% interest in Alain's disregarded LLC, and Alain keeps the cash outside the business. The LLC converts to a partnership. Under Revenue Ruling 99-5, Bart is treated as buying 50% of each LLC asset directly from Alain, followed by both contributing their 50% shares to a new partnership. Alain must recognize taxable gain or loss on the deemed sale of 50% of the assets.

Scenario 3: Adding a partner who contributes cash into the LLC (Tax-Free Conversion). Charles, an unrelated person, contributes $10,000 cash directly into Danielle's disregarded LLC for a 50% interest, and the LLC uses all $10,000 in its business. Under Revenue Ruling 99-5, Danielle is treated as contributing the existing LLC assets and Charles is treated as contributing $10,000 cash to a new partnership. Neither recognizes gain or loss from the conversion.

• IRS: Publication 3402 (03/2020), Taxation of Limited Liability Companies
• IRS: Limited liability company (LLC)

Checklist: Federal Tax Setup and Filing Plan for Your LLC

Use this 5-step compliance checklist written by our team to keep your LLC's federal tax reporting accurate.

• Step 1: Confirm state formation and member count. File articles of organization and check whether you have one owner, married co-owners in one of the 9 community property states, or multiple members.
• Step 2: Choose your tax classification. Keep your default pass-through status, or file Form 8832 (C corporation) or Form 2553 (S corporation) within the 75-day prior / 12-month future effective window.
• Step 3: Get an EIN on Form SS-4 if required. Apply if you have two or more members, hire employees, owe federal excise taxes, elect corporate status, or need one for banking or state law.
• Step 4: Put the right TIN on Form W-9. Individual owners of single-member disregarded LLCs must use their personal SSN or owner EIN on Form W-9, never the LLC's EIN.
• Step 5: File annual returns and quarterly estimates. File Schedule C and Schedule SE with Form 1040 (plus Form 1040-ES quarterly payments), Form 1065 with Schedule K-1s for partnerships, Form 1120 for C corporations, or Form 1120-S with Schedule K-1s for S corporations.

• IRS: S corporations
• IRS: Single member limited liability companies

Flat-Price Tax Filing and Bookkeeping for Your LLC

Aldro is the cheapest way to get your business taxes done: $399 flat, with bookkeeping at $20 a month. The flat price covers everything tax for the year (every federal and state or provincial business return: Schedule C, 1065, 1120-S, 1120 and state returns, T2 and T1 with T2125 in Canada), multi-state returns at the same price, and the owner's personal return when the business income needs it. Extensions and quarterly estimate reminders are included, 1099-NEC slips are included, and city and local business returns and state franchise tax reports are included.

• IRS: LLC filing as a corporation or partnership
• IRS: Limited liability company (LLC)