LLC Step Explainer · 2026-05-12

LLC Tax Classification: How LLCs Are Taxed & How to Choose (2026)

An LLC's tax classification determines how the IRS treats your business income and what forms you file each year. By default, single-member LLCs are taxed as sole proprietorships and multi-member LLCs as partnerships, but you can elect S corporation or C corporation treatment by filing Form 2553 or Form 8832. Choosing the right classification affects your self-employment tax liability, quarterly estimated payments, and ability to retain earnings. Understanding your options before you earn revenue helps you avoid costly amendments and ensures compliance from day one.

What it is

When you form an LLC, the IRS does not recognize it as a separate tax entity. Instead, the agency allows you to choose how your LLC will be classified for federal income tax purposes. Single-member LLCs default to disregarded entity status, meaning all income and expenses flow through to the owner's personal Form 1040 Schedule C as a sole proprietorship. Multi-member LLCs default to partnership taxation, filing Form 1065 and issuing Schedule K-1s to each member. These default classifications mean the LLC itself pays no federal income tax; members report their distributive share on their individual returns and pay self-employment tax on active business income.

You can override the default by filing IRS Form 8832, Entity Classification Election, to be taxed as a C corporation, or Form 2553, Election by a Small Business Corporation, to be taxed as an S corporation. C corporation taxation subjects the LLC to corporate income tax at the entity level and potential double taxation when profits are distributed as dividends. S corporation election allows pass-through taxation like the default but treats member-owners as employees for payroll purposes, which can reduce self-employment tax if you pay yourself a reasonable salary and take remaining profits as distributions. The S election requires all members to be U.S. citizens or residents, limits the number of members to 100, and mandates one class of membership interest. Each classification has trade-offs in tax rates, compliance burden, and flexibility, so many owners consult a CPA before making an election.

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State variations

California (CA): California imposes an $800 annual LLC franchise tax and a gross receipts fee ranging from $900 to $11,790 regardless of federal tax classification. Even S corporations structured as LLCs pay the 1.5% entity-level tax on net income in addition to pass-through taxation.
New York (NY): New York assesses a filing fee and annual maintenance fee based on gross income, plus the Metropolitan Commuter Transportation Mobility Tax (MCTMT) in certain counties. LLCs electing S corporation status still owe these state fees and must file form CT-6 for the fixed dollar minimum tax.
Texas (TX): Texas has no personal income tax but levies a franchise tax on LLCs with revenue exceeding $2.47 million (2026 threshold). LLCs with federal S election still pay the franchise tax, calculated at 0.375% of taxable margin for most entities or 0.75% for retail/wholesale.

Common mistakes to avoid

Filing Form 2553 without meeting S corp requirements. The IRS will reject your S election if any member is a non-resident alien, you have more than 100 members, or you issue multiple classes of equity. Verify eligibility on IRS Publication 589 before submitting Form 2553.
Electing S corp status but not running payroll. S corporations must pay member-employees reasonable W-2 wages subject to FICA. Taking only distributions without payroll triggers IRS scrutiny and potential reclassification of distributions as wages, plus penalties.
Assuming the default classification is always optimal. Default pass-through treatment subjects all active business income to the 15.3% self-employment tax. In profitable LLCs, an S election with reasonable salary can lower overall tax by applying FICA only to wages, not distributions.
Missing the Form 2553 deadline. To elect S corporation treatment effective for the current tax year, you must file Form 2553 within two months and fifteen days of the LLC's formation or by March 15 of the tax year. Late elections defer S status to the following year.
Ignoring state-level tax classification rules. Some states do not automatically honor federal S elections or impose entity-level taxes regardless of federal classification. For example, California charges LLCs an annual minimum franchise tax and a gross receipts fee independent of federal election.

Frequently asked questions

What is the default tax classification for a single-member LLC?

A single-member LLC is treated as a disregarded entity by default, meaning the IRS taxes it as a sole proprietorship. You report income and expenses on Schedule C of your personal Form 1040, and you pay self-employment tax on net profit. No separate federal tax return is required unless you elect corporate treatment.

Can I change my LLC's tax classification after formation?

Yes. You can file Form 8832 to elect C corporation treatment or Form 2553 to elect S corporation treatment at any time, subject to timing rules. However, once you change classification, you generally cannot change again for 60 months unless you obtain IRS consent or experience a more-than-50% ownership change.

Does electing S corporation status save on self-employment tax?

It can. S corporation members who work in the business must pay themselves a reasonable W-2 salary subject to FICA (15.3% combined employer/employee). Profits distributed beyond that salary are not subject to self-employment tax, potentially reducing overall tax liability if distributions exceed salary. Consult IRS Publication 15-A for reasonable compensation guidance.

When is the deadline to file Form 2553 for S corporation election?

For a new LLC, file Form 2553 within two months and fifteen days of formation to have S status apply for the current tax year. For existing entities, file by March 15 of the year you want the election to take effect. Late filings defer S treatment to the next tax year unless you qualify for IRS relief under Revenue Procedure 2013-30.

Do I need to notify my state when I elect S corporation status?

In most states, yes. Many states require a separate election or notification even if you have made a federal S election. For example, New York requires Form CT-6 and California Form 100S. Check your Secretary of State and state tax agency websites to confirm filing requirements and deadlines.

Authoritative sources

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Next step

Choosing the right tax classification is a foundational decision that shapes your annual compliance burden and tax bill. AthenAI's LLC formation guide walks you through default treatment, S election timing, and state-specific fees, so you can file with confidence and avoid mid-year surprises. If you need payroll setup for an S corporation election, Mercury Bank offers integrated business banking and payment tools that streamline W-2 processing and quarterly tax deposits. Start your formation today and lock in the tax structure that fits your growth plans.

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