One of the most common misunderstandings about LLCs is that “LLC” describes how a business is taxed.
It does not.
An LLC is a legal entity formed under state law. For federal tax purposes, the same LLC may be treated in several different ways depending on its ownership and elections.
The important concept is simple:
Legal entity and federal tax classification are two different questions.
LLC Is a Legal Entity, Not a Tax Classification
An LLC is created under state law.
Federal tax law then separately determines how the entity is classified for tax purposes.
Treasury Regulations §§301.7701-1 through 301.7701-3 establish the federal entity-classification framework.
A domestic business entity that is not automatically classified as a corporation generally may qualify as an eligible entity.
If no election is made, the default federal classification generally depends on the number of owners.
A domestic eligible entity with two or more members is generally classified as a partnership.
A domestic eligible entity with a single owner is generally disregarded as an entity separate from its owner.
An eligible entity may also elect to be classified as an association taxable as a corporation.
S corporation status adds another layer: an eligible corporation that satisfies the requirements of IRC §1361 may elect S corporation treatment under IRC §1362.
As a result, seeing “LLC” at the end of a company’s legal name tells us very little about how the company actually files its federal income tax return.
The legal consequences of forming an LLC—including liability protection and other state-law matters—depend on applicable state law and the taxpayer’s circumstances. Those legal considerations should be addressed separately from the federal tax classification analysis.
Disregarded Entity
A domestic eligible entity with one owner is generally disregarded as an entity separate from its owner unless it elects corporate classification.
“Disregarded” does not mean that the business or its activities disappear for tax purposes.
Instead, for federal income-tax purposes, the entity’s activities generally become activities of its owner.
That owner does not have to be an individual.
For example, a single-member LLC may be owned by:
- an individual;
- a partnership;
- a C corporation;
- an S corporation; or
- another eligible owner.
If a corporation owns a disregarded LLC, the LLC’s tax items generally become part of the corporate owner’s federal tax reporting.
A disregarded subsidiary therefore does not normally file a separate federal income-tax return merely because it is an LLC. Its activities may instead be reflected directly on its owner’s return.
This is why “single-member LLC” does not automatically mean “Schedule C.”
There are also important exceptions. A disregarded entity can be treated as separate from its owner for certain federal tax purposes, including specified employment and excise taxes. Special information-reporting rules also apply to certain foreign-owned U.S. disregarded entities.
Sole Proprietorship
A sole proprietorship and a disregarded entity are related concepts, but they are not the same thing.
An individual can operate a sole proprietorship without forming an LLC.
Alternatively, an individual may own a single-member LLC that is disregarded for federal income-tax purposes. When the individual conducts a trade or business through that LLC, the federal income-tax reporting may resemble that of a business conducted directly by the individual.
Business income and deductions are commonly reported on the individual’s Form 1040, often through Schedule C when appropriate for the activity.
Net earnings from self-employment may also be subject to self-employment tax under IRC §§1401 and 1402.
The distinction is therefore important:
Sole proprietorship describes an individual-owned business. Disregarded entity describes a federal entity-classification result.
They frequently overlap, but they are not synonyms.
Partnership
A domestic LLC with two or more members is generally classified as a partnership for federal tax purposes unless it elects corporate treatment.
Partnership taxation offers substantial flexibility in structuring the economic relationship among owners.
For example, partnership tax rules can accommodate economic arrangements and allocations that would not generally be available in an S corporation.
That flexibility can be valuable.
It can also create substantial complexity.
Partnership taxation is governed principally by Subchapter K of the Internal Revenue Code. Contributions, distributions, liabilities, basis, allocations and changes in ownership can all create tax consequences that are not obvious from the LLC’s financial statements.
Allocations among partners are also subject to IRC §704 and the applicable Treasury Regulations; partners cannot simply allocate taxable items in any manner they choose.
A partnership can therefore provide considerable flexibility—but it can also be designed into unnecessary complexity.
More flexibility does not automatically mean a better tax structure.
A partnership generally files Form 1065 and provides Schedule K-1 information to its partners.
S Corporation
An LLC eligible for corporate classification may also be able to elect S corporation status if it satisfies the requirements of IRC §1361.
Compared with partnership taxation, an S corporation operates within substantially narrower boundaries.
Federal tax law restricts:
- who may be a shareholder;
- the number of shareholders; and
- the corporation’s classes of stock.
An S corporation generally cannot create the same customized economic allocations that may be possible in a partnership. Income and loss generally follow stock ownership rather than negotiated special allocations.
Compensation rules also matter when a shareholder performs services for the corporation. A shareholder-employee cannot simply characterize all business earnings as distributions while disregarding reasonable compensation requirements.
The restrictions also make the basic structure more defined.
For many businesses with eligible shareholders and straightforward ownership arrangements, the choice between partnership and S corporation taxation therefore involves a tradeoff between flexibility, complexity, compensation rules and other tax considerations.
An S corporation generally files Form 1120-S and provides Schedule K-1 information to its shareholders.
S corporation treatment is not automatically “better” than partnership taxation. It is a different federal tax structure with different rules and limitations.
C Corporation
An LLC may also elect to be treated as an association taxable as a corporation. Unless an S corporation election applies, the entity is generally subject to the federal income-tax rules applicable to a C corporation.
A C corporation is a separate federal income-taxpayer.
It earns income, claims deductions and pays federal income tax on its taxable income.
Under current federal law, IRC §11 generally imposes a 21% tax on corporate taxable income.
Unlike the individual income-tax system, the federal corporate income tax does not currently use multiple graduated ordinary-income tax brackets. The statutory rate under §11 is generally 21% of taxable income.
This structure comes with an important consideration.
A C corporation may face two levels of income tax.
First, the corporation may pay corporate income tax on its earnings.
Second, when after-tax earnings are distributed to shareholders as dividends, the shareholders may also recognize taxable dividend income.
This is commonly referred to as double taxation.
That does not mean every dollar earned by every C corporation is necessarily taxed twice. The actual consequences depend on compensation, deductible expenses, distributions, shareholder circumstances and other facts.
Nevertheless, the potential for taxation at both the corporate and shareholder levels is an important feature of C corporation taxation.
A C corporation generally files Form 1120.
One LLC, Several Federal Tax Results
The same type of state-law entity can therefore lead to very different federal tax results.
| Structure | Typical Federal Treatment | Typical Federal Filing |
|---|---|---|
| Single-member LLC owned by an individual | Disregarded entity; activity reported by owner | Form 1040 with applicable schedule |
| Single-member LLC owned by another entity | Disregarded entity; activity generally reported by owner | Owner’s applicable federal return |
| Individual operating business directly | Sole proprietorship | Form 1040, commonly Schedule C |
| Multi-member LLC | Partnership by default | Form 1065 |
| LLC with valid S election | S corporation | Form 1120-S |
| LLC electing corporate treatment without S status | C corporation | Form 1120 |
These are general rules. Particular owners, activities, elections and special tax provisions can change the filing requirements.
Flexibility Is Not Always Better
The federal classifications available to an LLC have very different characteristics.
A partnership generally provides substantial flexibility in structuring the economic relationship among owners, but that flexibility can create significant tax complexity.
An S corporation provides less flexibility and imposes more restrictions on ownership and economic rights.
A C corporation is a separate taxpayer with a comparatively straightforward basic income-tax structure, but corporate earnings can potentially be taxed at both the corporate and shareholder levels.
A disregarded entity can provide relatively simple federal income-tax reporting in appropriate circumstances, but its tax consequences ultimately depend on who owns it and what activities it conducts.
There is no universally “best” LLC tax classification.
Choosing the Appropriate Classification
Tax classification should not be selected solely from a rule of thumb such as:
“Once the business makes $X, elect S corporation status.”
The appropriate classification depends on the business and its owners.
Relevant considerations can include the ownership structure, the nature and profitability of the business, owner compensation, desired economic arrangements, state and local taxation, future ownership changes, and the owners’ longer-term plans.
The appropriate classification may also change as a business develops.
That is one of the principal advantages of understanding an LLC correctly:
The LLC is the legal structure. Its federal tax classification is a separate tax decision.
Legal Authorities
The principal authorities underlying this article include:
- Treas. Reg. §301.7701-1 — classification of organizations for federal tax purposes.
- Treas. Reg. §301.7701-2 — definitions and federal tax treatment of business entities, including disregarded entities.
- Treas. Reg. §301.7701-3 — default classifications and classification elections for eligible entities.
- IRC §11 — federal corporate income tax.
- IRC §§1401 and 1402 — self-employment tax and net earnings from self-employment.
- IRC §§701–777 (Subchapter K) — taxation of partners and partnerships.
- IRC §704 and applicable Treasury Regulations — determination and allocation of partners’ distributive shares.
- IRC §1361 — requirements for S corporation status.
- IRC §1362 — S corporation elections and termination rules.
Forms 8832, 2553, 1065, 1120-S, 1120, Schedule C and Schedule SE and their instructions provide administrative filing procedures. They do not replace the Internal Revenue Code and Treasury Regulations as the principal substantive authorities for the rules discussed above.
T&Y CPA provides tax compliance and advisory services for individuals and businesses, including entity classification, S corporation taxation, partnership taxation and international tax matters. This article provides general information only and is not a substitute for advice based on a taxpayer’s particular facts and circumstances.
