Your LLC is a disregarded entity for federal income tax purposes if you are its only owner and you have not filed an election to be taxed as a corporation. That is the IRS default, and it applies automatically the moment the LLC is formed. No application, no approval.1Internal Revenue Service. Single Member Limited Liability Companies In practical terms, the IRS looks straight through the LLC and treats its income and expenses as yours. Your state still recognizes the LLC as a separate legal entity that shields your personal assets; the federal income tax system simply ignores it.
The Test: One Owner and No Corporate Election
Two questions decide it. How many owners does the LLC have, and have you filed Form 8832 or Form 2553 to elect corporate treatment?
Under Treasury Regulation 301.7701-3(b), a domestic LLC with one owner defaults to disregarded entity status, taxed the same as a sole proprietorship for income tax reporting. An LLC with two or more owners defaults to a partnership, which files Form 1065 and issues Schedule K-1s to each member.2Internal Revenue Service. Overview of Entity Classification Regulations3Internal Revenue Service. About Form 1065, U.S. Return of Partnership Income Either default holds until you affirmatively elect otherwise.
So if you formed a single-member LLC and never filed anything with the IRS about how it should be taxed, you have a disregarded entity. You don’t need to check a box or receive a determination letter. The classification is already in place.
What Disregarded Entity Status Actually Means on Your Return
A disregarded entity does not file its own federal income tax return. Every dollar of business income and every deductible expense goes on your personal Form 1040, reported under your Social Security Number.1Internal Revenue Service. Single Member Limited Liability Companies The schedule depends on what the business does:
- Active trade or business: Schedule C, Profit or Loss From Business.4Internal Revenue Service. About Schedule C (Form 1040)
- Rental real estate: Schedule E, unless you provide substantial services to tenants, which pushes the activity onto Schedule C.5Internal Revenue Service. Topic No. 414 Rental Income and Expenses
- Farming: Schedule F.6Internal Revenue Service. About Schedule F (Form 1040), Profit or Loss From Farming
The defining feature is that the IRS never sees a separate business return. Everything lands on your 1040.
Self-Employment Tax
Net profit on Schedule C or Schedule F is subject to self-employment tax if your net earnings from self-employment reach $400 or more for the year.7Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes) You calculate it on Schedule SE.8Internal Revenue Service. About Schedule SE (Form 1040), Self-Employment Tax The combined rate is 15.3%: 12.4% for Social Security and 2.9% for Medicare. For 2026, the Social Security portion applies only to the first $184,500 of net earnings.9Social Security Administration. Contribution and Benefit Base Earnings above that ceiling still owe the 2.9% Medicare portion, with no cap, and an additional 0.9% Medicare surtax applies to self-employment income above $200,000 for single filers or $250,000 for married filing jointly.
Rental income reported on Schedule E is generally not subject to self-employment tax.10Internal Revenue Service. 2025 Instructions for Schedule E (Form 1040) For a disregarded entity that holds rental property, that is a meaningful difference from an active business on Schedule C.
The Boundary: Disregarded for Income Tax Only
The word “disregarded” applies to federal income tax and nothing else. For employment taxes and certain excise taxes, the IRS treats your single-member LLC as a separate entity from you.1Internal Revenue Service. Single Member Limited Liability Companies That is why your LLC may need its own Employer Identification Number even though it never files its own income tax return.
Situations that require an EIN for the LLC itself:
- Paying wages to employees. The LLC, not you personally, is the employer for Form 941 and other employment tax filings.11Internal Revenue Service. Get an Employer Identification Number
- Registering for or filing excise tax activities (Forms 720, 730, 2290, and 11-C). A single-member LLC must use its own name and EIN for these.1Internal Revenue Service. Single Member Limited Liability Companies
- Setting up a qualified retirement plan such as a Solo 401(k).
- Opening a business bank account. Most banks require an EIN in the LLC’s name, and a separate account reinforces the legal separation between you and the entity.
Even after you get an EIN, you still use your SSN on Schedule C, E, or F for income tax reporting.
If You Are Married and Co-Own the LLC
A spouse counts as a second owner, which normally kicks the LLC out of disregarded entity status and into partnership territory. Two exceptions and one common trap are worth knowing.
Community property states. If you and your spouse own the LLC as community property in a community property state, the IRS will accept treating it as a disregarded entity under Revenue Procedure 2002-69. The LLC must be wholly owned by the spouses as community property, no other person can be treated as an owner for federal tax purposes, and the LLC must not be treated as a corporation. You can also choose partnership treatment instead; the revenue procedure gives you the option either way.1Internal Revenue Service. Single Member Limited Liability Companies12Internal Revenue Service. Revenue Procedure 2002-69
Qualified joint venture — but not for LLCs. Outside community property states, spouses who both materially participate in a business can elect qualified joint venture status and file two Schedule Cs instead of a partnership return. This election is not available to a business held in a state-law entity such as an LLC.13Internal Revenue Service. Election for Married Couples Unincorporated Businesses If you and your spouse formed an LLC together in a non-community-property state, you have a partnership by default and Form 1065 is required.
What Ends Disregarded Entity Status
The classification is not permanent. Two things end it.
Adding a Second Owner
The moment your single-member LLC picks up another owner, whether by sale, gift, or admission of a new member, it becomes a partnership by default. Form 1065 and K-1s begin the year of the change. The reverse also happens: if a multi-member LLC drops to one owner, the partnership terminates and the LLC becomes a disregarded entity, with tax consequences on the transition governed by Revenue Ruling 99-6.14Internal Revenue Service. Revenue Ruling 99-6
Electing Corporate Treatment
You can affirmatively elect out of disregarded entity status.
Form 8832, Entity Classification Election, tells the IRS to treat the LLC as a corporation. The LLC then files Form 1120 and pays corporate income tax at the flat 21% rate. The election cannot take effect more than 75 days before you file it or more than 12 months after.15Internal Revenue Service. About Form 8832, Entity Classification Election16Internal Revenue Service. Form 8832, Entity Classification Election The tradeoff is that corporate profits are taxed once at the entity level and again as dividends when distributed.
Form 2553, Election by a Small Business Corporation, elects S-corporation treatment. Income still passes through to your personal return, but you pay yourself a reasonable salary subject to payroll taxes, and the remaining profit flows through as a distribution not subject to self-employment tax.17Internal Revenue Service. About Form 2553, Election by a Small Business Corporation The deadline is no more than two months and 15 days after the start of the tax year you want the election to apply, or any time in the preceding tax year.18Internal Revenue Service. Instructions for Form 2553 For a calendar-year business, that is March 15. Miss it, and the election generally waits until the next year unless late-election relief applies.
Liability Protection Is Unaffected
Being disregarded for federal income tax has nothing to do with your LLC’s legal status. Your state still treats the LLC as a separate entity that shields personal assets from business debts, and that protection depends on state-law compliance: keeping business and personal funds separate, maintaining an operating agreement, adequately capitalizing the business, and filing whatever annual or biennial reports your state requires. The tax label on your 1040 changes none of that.