How Is an LLC Taxed by Default? (w/Examples) + FAQs

This article reflects federal rules and California rules as of June 2026 and covers tax year 2025 (returns filed in 2026), with 2026 changes flagged. Tax law changes — confirm current figures before you file.

Quick Answer

By default, the IRS does not tax an LLC as its own thing. A one-owner LLC is a disregarded entity taxed like a sole proprietorship on Schedule C. A multi-owner LLC is taxed as a partnership on Form 1065. Profits pass through to owners, who pay income tax plus 15.3% self-employment tax for 2025.

When you form an LLC, you create a legal shield from your state, but the IRS hands you a tax label automatically based on how many owners you have. That label decides which form you file, when it is due, and how much self-employment tax you owe on every dollar of profit — and getting it wrong can mean a missed March 15 partnership deadline and penalties.

Most new owners never realize they had a choice, because the default kicks in the moment the LLC exists. That matters now because pass-through businesses make up the vast majority of U.S. firms — over 90% of all businesses are pass-through entities, so the default rules below touch nearly everyone who starts a company.

🧾 How the IRS assigns your default tax label the day your LLC is born
💵 Worked dollar examples of self-employment tax, income tax, and the QBI deduction
📅 The exact forms and deadlines for single-member and multi-member LLCs
🏦 When electing S-corp or C-corp status saves real money — and when it backfires
⚠️ The costly mistakes that trigger IRS penalties and California’s $800 fee

What “Default Taxation” Really Means

An LLC is a state creation, not a federal tax category. When you file articles of organization with your secretary of state, you get liability protection — your personal assets stay separate from business debts. The IRS, though, has no tax box labeled “LLC.”

So the IRS uses its check-the-box rules to assign your LLC a default classification automatically. You do not sign anything. The label attaches the moment the LLC has owners, and it is based on one simple fact: how many members the LLC has.

A member is an owner of an LLC. The number of members is the single switch that flips your default. One member means the IRS treats the LLC as a disregarded entity, as if it does not exist for income tax. Two or more members means the IRS treats it as a partnership by default.

The consequence of not knowing your default is real. Many new owners assume an LLC is “its own taxpayer” and wait for a separate LLC tax bill that never comes — meanwhile their profit is piling up untaxed on their personal return, and they owe it all in April plus self-employment tax. The misconception that “the LLC pays its own taxes” is the single most common mistake first-year owners make. What you should do: confirm your member count, then match it to the correct form below before your first filing season.

The Four Ways an LLC Can Be Taxed

Every LLC lands in one of four tax treatments. Two are defaults (automatic). Two are elections (you choose them by filing a form). You should know all four so you can tell whether your automatic label is the cheapest one for you.

Default 1 — Single-Member LLC (Disregarded Entity)

A single-member LLC (SMLLC) has one owner. The IRS disregards it, meaning it ignores the LLC for income tax and treats the business as if the owner ran it directly. You report all business income and expenses on Schedule C, which attaches to your personal Form 1040.

The consequence: the LLC files no separate federal income tax return. Your net profit flows straight onto your 1040, and you pay both income tax and 15.3% self-employment tax on it for 2025. A common misconception is that an SMLLC must file its own return — it does not, unless it has employees or owes certain excise taxes, in which case it still uses its own EIN for those.

What you should do: keep a separate business bank account anyway. The IRS may disregard the LLC for tax, but commingling funds can let a court “pierce the veil” and erase your liability protection.

Default 2 — Multi-Member LLC (Partnership)

A multi-member LLC (MMLLC) has two or more owners and defaults to partnership taxation. The LLC files an informational return, Form 1065, but pays no federal income tax itself. Instead, it passes each owner’s share of profit to them on a Schedule K-1.

The consequence: each member reports their K-1 share on their own 1040 and pays income tax plus self-employment tax on it — even if the LLC kept the cash and distributed nothing. This surprises owners who reinvest profits and still get a tax bill. The misconception that “I only pay tax on what I withdraw” is false for default partnerships; you are taxed on your share of profit, not your distributions.

What you should do: deliver each K-1 by March 15 (for calendar-year LLCs) and set aside cash for the tax even on undistributed profit.

Election 1 — S Corporation (Form 2553)

An LLC can elect to be taxed as an S corporation by filing Form 2553. This does not change the LLC legally; it only changes the tax math. Owners who work in the business become employees who take a reasonable salary, and remaining profit passes through free of self-employment tax.

The consequence: you can cut self-employment tax, but you add payroll, payroll-tax filings, and a separate Form 1120-S return. A misconception is that S-corp status always saves money — below roughly $40,000–$50,000 of profit, the payroll and accounting costs often outweigh the savings. What you should do: run the numbers (see the worked example below) before electing.

Election 2 — C Corporation (Form 8832)

An LLC can elect C-corporation tax by filing Form 8832. The LLC then pays the flat 21% corporate tax on its profit, and owners pay tax again on dividends — the famous double taxation.

The consequence: most small owners avoid this, but it can help firms that reinvest heavily or seek venture capital. The misconception that C-corp is “for big companies only” misses cases where retaining profit inside a 21% entity beats a 37% personal rate. What you should do: treat C-corp election as a strategy decision to run past a CPA, not a default to drift into.

Which Situation Applies to You?

The right section depends on your facts. Use this quick branch to jump to what fits you, then read the worked example that matches.

You own 100% of the LLC alone → you are a disregarded entity; file Schedule C; read Default 1 and the single-member example.
You own the LLC with a spouse in a community-property state → you may qualify to file as a disregarded entity (a qualified joint venture-style treatment); confirm with a pro.
You own the LLC with one or more other people → you default to a partnership; file Form 1065; read Default 2 and the multi-member example.
Your profit tops roughly $80,000 and you take a steady draw → model the S-corp election; read Election 1 and the S-corp example.
You plan to reinvest most profit or raise outside capital → explore the C-corp election with an advisor.

The reason this branch matters is that one wrong assumption — like a two-spouse LLC filing Schedule C in a non-community-property state — can mean filing the wrong return and owing late-filing penalties.

Worked Example 1 — Single-Member LLC

Meet Maria, a freelance graphic designer in Austin, Texas, who runs a single-member LLC. In tax year 2025 her LLC earns $90,000 in revenue and has $20,000 in business expenses, leaving $70,000 of net profit. Texas has no personal income tax, so we focus on the federal math.

First, self-employment tax. Only 92.35% of net profit is subject to it, so $70,000 × 0.9235 = $64,645. Her SE tax is $64,645 × 15.3% = $9,891. She deducts half of that ($4,946) as an above-the-line adjustment.

Next, income tax. Her adjusted gross income starts at $70,000 − $4,946 = $65,054. She may also take the 20% QBI deduction on her business income because her income sits well below the 2025 single-filer threshold of $197,300. After the 2025 standard deduction and QBI, her federal income tax lands near $6,000. Her total federal hit is roughly $15,900 — and the SE tax is the piece an S-corp could later shrink.

Maria’s 2025 Federal Calculation	Amount
Net profit (Schedule C)	$70,000
Self-employment tax (15.3% on 92.35%)	$9,891
Deduction for ½ SE tax	$4,946
QBI deduction (≈20% of QBI)	~$11,000
Approx. federal income tax	~$6,000
Approx. total federal tax	~$15,900

Worked Example 2 — Multi-Member LLC

David and Priya run a two-partner consulting LLC, splitting ownership 50/50. In tax year 2025 the LLC earns $200,000 of net profit. The LLC files Form 1065 and issues each partner a K-1 for $100,000.

The LLC itself pays no federal income tax. David reports his $100,000 K-1 share on his 1040. Because he actively works in the business, his share is subject to self-employment tax: $100,000 × 0.9235 = $92,350, and the 12.4% Social Security portion stops at the $176,100 wage base for 2025. His SE tax runs about $14,130.

Here is the trap: even if the LLC reinvested $60,000 and distributed only $40,000 to each partner, David still owes tax on the full $100,000 share. What he should do is keep an eye on his QBI deduction — at $100,000 of single-filer income he is under the 2025 threshold and can claim the full 20%.

David’s 2025 Partnership Outcome	Amount
K-1 share of profit	$100,000
Self-employment tax (≈)	$14,130
Taxed on distributions only?	No — taxed on full share
QBI deduction eligible?	Yes (under $197,300 in 2025)

Worked Example 3 — When the S-Corp Election Beats the Default

Jordan owns a single-member marketing LLC earning $150,000 of net profit in 2025. Under the default, all $150,000 (×92.35%) faces 15.3% self-employment tax — roughly $21,200.

If Jordan elects S-corp status, he pays himself a reasonable salary of $80,000 and takes the remaining $70,000 as a distribution. Payroll taxes apply only to the $80,000 salary (about $12,240 split between the LLC and Jordan), while the $70,000 distribution escapes self-employment tax entirely. That is roughly $9,000 in savings before subtracting payroll and extra accounting costs of around $1,500–$3,000.

The reason the salary must be “reasonable” is that the IRS can reclassify a too-low salary and hit Jordan with back payroll taxes and penalties. What Jordan should do: file Form 2553 within 2 months and 15 days of the tax year start, and document how he set his salary.

Jordan’s $150,000 Profit	Default LLC	S-Corp Election
Self-employment / payroll tax	~$21,200	~$12,240
Extra costs (payroll, return)	$0	~$2,000
Net tax position	Higher	~$7,000 better

The QBI Deduction and the 2026 Change (OBBBA)

The Qualified Business Income (QBI) deduction, under Section 199A, lets pass-through owners deduct up to 20% of their business income. It applies to default LLCs because they are pass-through by nature, and it can be the single largest tax break a small LLC owner gets.

For tax year 2025, the deduction phases out for higher earners. The thresholds are $197,300 for single filers and $394,600 for joint filers, with full phase-out at $247,300 single and $494,600 joint. Below those numbers, most owners get the clean 20%.

The big news: the One Big Beautiful Bill Act (OBBBA) made the QBI deduction permanent. It was set to sunset after 2025, but it now stays in the code with no expiration. Starting in tax year 2026, OBBBA also adds a minimum $400 deduction for owners with at least $1,000 of active QBI, and widens the phase-in ranges.

Does your state follow this? Not always. Many states do not conform to Section 199A, so your QBI deduction may lower your federal tax but not your state tax. Confirm your state’s conformity before assuming the deduction helps your state bill.

The State Layer — California’s $800 Franchise Tax

Federal default rules are only half the story. States add their own taxes and fees on top, and they vary sharply. The cleanest contrast is California versus a no-income-tax state like Texas.

In California, every LLC doing business in the state owes a minimum $800 annual franchise tax to the Franchise Tax Board, regardless of profit — even a brand-new LLC with zero income. The first payment is due the 15th day of the fourth month after formation, and there is no proration for a partial year.

The consequence of skipping it is steep: penalties and interest stack up, and the FTB can suspend your LLC, stripping its right to do business. By contrast, Texas charges no personal income tax and no $800-style LLC fee, though larger Texas LLCs may owe a franchise (margin) tax once revenue clears a threshold. The misconception that “an LLC is free to run after formation” ignores these recurring state fees. What you should do: budget the $800 every year a California LLC exists, and formally dissolve it the moment you stop using it.

Forms, Deadlines, and Costs at a Glance

Knowing the form is not enough — the deadline and the penalty for missing it are what cost real money. Here is how the default treatments line up for a calendar-year LLC in tax year 2025.

Single-member LLC: files Schedule C with Form 1040 by April 15, 2026, plus Schedule SE for self-employment tax.
Multi-member LLC: files Form 1065 and issues K-1s by March 15, 2026; partners then file their 1040s by April 15.
Late Form 1065 penalty: about $245 per partner per month for 2025, which adds up fast for a small partnership.
Estimated taxes: owners generally pay quarterly estimates (April, June, September, January) to avoid underpayment penalties.
Cost to file: DIY software runs $100–$200; a CPA for a partnership return often runs $800–$2,000 depending on complexity.

For a step-by-step on the core form, see a dedicated How to Fill Out Schedule C guide, and for partnerships, a Schedule K-1 walkthrough. To weigh an election, a LLC vs. S-Corp comparison and an S-Corp election guide round out the cluster.

Mistakes to Avoid

Assuming the LLC pays its own tax — the default is pass-through, so unpaid profit lands on your personal return and you owe in April.
Missing the March 15 partnership deadline — a late Form 1065 triggers a per-partner, per-month penalty even when no tax is due.
Taxing only your distributions in a partnership — you owe tax on your full K-1 share, even on profit the LLC kept.
Skipping quarterly estimated taxes — the IRS charges underpayment penalties when you wait until April to pay it all.
Setting an unreasonably low S-corp salary — the IRS can reclassify it and assess back payroll taxes plus penalties.
Ignoring California’s $800 fee — it is owed every year the LLC exists, and unpaid amounts lead to suspension.
Commingling personal and business funds — this can pierce the liability shield, undoing the main reason you formed the LLC.
Assuming your state follows the federal QBI deduction — many do not, so your state tax may not drop.

Do’s and Don’ts

Do confirm your member count first — it sets your entire default classification and which form you file.
Do open a separate business bank account, because it protects both your liability shield and your recordkeeping.
Do set aside roughly 25–30% of profit for taxes, since no employer is withholding it for you.
Do model the S-corp election once profit clears about $80,000, where the SE-tax savings usually beat the added costs.
Do track the QBI thresholds each year, because crossing them shrinks or removes your 20% deduction.
Don’t wait for a separate LLC tax bill — under the default it never arrives, and the tax is already yours.
Don’t elect C-corp status casually, because double taxation can cost more than it saves for small owners.
Don’t forget recurring state fees, as they apply whether or not the LLC earns a dime.
Don’t distribute every dollar in a partnership without reserving for tax on the full share.
Don’t guess on a spouse-owned LLC’s status — community-property rules change the answer.

Pros and Cons of Default LLC Taxation

Pro — Simplicity: a single-member LLC files no separate return, which keeps tax season cheap and fast.
Pro — Pass-through saves a layer: profit is taxed once, avoiding the corporate double tax.
Pro — QBI deduction: the up-to-20% Section 199A break can meaningfully cut your federal bill.
Pro — Loss flexibility: business losses can offset other personal income, softening a rough year.
Pro — Easy to change later: you can elect S-corp or C-corp status when growth justifies it.
Con — Full self-employment tax: every dollar of profit faces the 15.3% SE tax under the default.
Con — Taxed on profit, not cash: partners owe tax even on reinvested, undistributed earnings.
Con — Quarterly estimates: you must manage and pay your own taxes four times a year.
Con — State fees: levies like California’s $800 apply regardless of profit.
Con — Less wage planning: without an election, you cannot split income into salary and distribution.

What to Do Next

Count your members and confirm your default — one owner means Schedule C, two-plus means Form 1065.
Get an EIN from the IRS if you will hire employees, open business accounts, or elect a different status.
Mark your deadlines now — March 15, 2026, for partnerships and April 15, 2026, for single-member returns.
Start quarterly estimated payments so you are not hit with an underpayment penalty next April.
Run the S-corp math if profit exceeds roughly $80,000, and file Form 2553 in time if it pays off.
Call a CPA when you have multiple owners, multi-state activity, an S- or C-corp decision, or losses you want to use — this is the point where professional help, typically $500–$2,000, pays for itself.

This article is educational and is not a substitute for advice from a licensed CPA or tax attorney about your specific situation.

Frequently Asked Questions

Does an LLC pay taxes by default? No. By default the LLC pays no federal income tax itself. Profit passes through to the owners, who report it on their personal returns and pay income tax plus self-employment tax for tax year 2025.

How is a single-member LLC taxed by default? As a disregarded entity. You report business income and expenses on Schedule C with your Form 1040, and pay 15.3% self-employment tax on net profit for 2025. The LLC files no separate income tax return.

How is a multi-member LLC taxed by default? As a partnership. The LLC files Form 1065 and issues a Schedule K-1 to each owner, who then reports their share on their own 1040. The LLC itself pays no federal income tax.

What is the self-employment tax rate for 2025? 15.3%. That is 12.4% Social Security (up to $176,100 of earnings) plus 2.9% Medicare. It applies to 92.35% of your net self-employment profit, and you deduct half of it on your return.

Do I have to file Form 1065 if my LLC made no money? Yes. A multi-member LLC must generally file Form 1065 even with zero income or a loss. Skipping it risks a penalty of about $245 per partner per month for 2025.

When is my LLC tax return due? March 15 or April 15, 2026. Multi-member (partnership) returns are due March 15, 2026, while single-member LLCs report on the personal 1040 due April 15, 2026, for calendar-year filers.

Can I change how my LLC is taxed? Yes. File Form 2553 to elect S-corp tax, or Form 8832 to elect C-corp tax. The change adjusts your tax treatment only — your LLC stays the same legal entity under state law.

Is the QBI deduction still available? Yes, permanently. The OBBBA made the 20% Section 199A QBI deduction permanent. For 2025 it phases out above $197,300 single and $394,600 joint, with a new minimum deduction starting in 2026.

Does an LLC owner pay self-employment tax on all profit? Yes, under the default. Active single-member and general-partner LLC owners pay SE tax on their full net profit for 2025. An S-corp election can shield the distribution portion from that tax.

How much is California’s LLC tax? $800 minimum per year. Every LLC doing business in California owes the $800 annual franchise tax to the Franchise Tax Board, regardless of profit, even in its first year, until it formally dissolves.

Am I taxed on money I leave in the business? Yes. Default LLC owners are taxed on their share of profit, not on what they withdraw. Reinvesting cash inside a partnership does not reduce the tax you owe on that share.

Do I need an EIN for a single-member LLC? Not always. A single-member LLC with no employees can use the owner’s Social Security number for income tax. You need an EIN to hire workers, open some bank accounts, or elect corporate status.

Word count: approximately 3,500 words. Figures reflect tax year 2025 unless a 2026 change is noted.

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