How a single-member LLC is taxed: Schedule C, self-employment tax, and estimated payments

The default rule: a disregarded entity

The IRS page on single member limited liability companies states the starting point in one sentence: for income tax purposes, an LLC with only one member is treated as an entity disregarded as separate from its owner. The same page adds that the owner is responsible for the income tax reporting. In plain terms, the IRS looks through the company. The business's income and expenses are reported as if the owner earned and paid them directly, on the owner's own federal return, and the LLC does not file a separate federal income tax return of its own.

Two things this does not mean. First, it does not weaken the state-law liability separation that formation creates. Tax classification and liability protection are different questions answered by different rules, and the IRS page is only describing the tax side. Second, it does not mean the LLC is invisible to every tax. The same IRS page says the LLC is treated as a separate entity for employment tax and certain excise taxes, which is covered in a later section.

The default only applies while the LLC has one member. When a second member joins, the IRS Limited Liability Company page says a domestic LLC with at least two members is classified as a partnership for federal income tax purposes, again unless it files Form 8832 to be taxed as a corporation. Our single-member vs. multi-member guide covers what changes at that point.

Which schedule the business income goes on

For an individual owner, the IRS single-member page says the LLC's activities should be reflected on the owner's federal tax return, generally on Schedule C, Schedule E, or Schedule F, depending on the activity. The IRS Self-Employed Individuals Tax Center describes Schedule C as the schedule for income or loss from a business you operated or a profession you practiced as a sole proprietor. An LLC owner running a consulting practice, a repair business, or an online shop would typically use Schedule C. Rental activity is generally reported on Schedule E, and farming on Schedule F, according to the same IRS page.

If the owner of the LLC is itself a corporation or a partnership, the picture changes: the IRS page says the LLC's activities then appear as a division of that owner rather than on an individual's schedules. This guide is written for the more common case of an individual owner.

The practical consequence is that the net profit, not the money you take out, is what gets reported. If the business earns $60,000 more than it spends in a year, the $60,000 is the figure that flows to your return, whether you leave it in the business account or move it to your personal account. Moving money between your business account and your personal account is not a taxable event by itself. The profit is taxed when it is earned.

• Schedule C: income or loss from a business you operate as a sole proprietor, which is how a disregarded LLC with an individual owner is generally reported.
• Schedule E: generally used for rental real estate and similar activity.
• Schedule F: generally used for farming.
• No separate federal income tax return for the LLC itself while it stays disregarded.

Self-employment tax: the part that surprises new owners

The IRS single-member page says an individual owner who runs a trade or business through a disregarded LLC is subject to the tax on net earnings from self-employment in the same manner as a sole proprietorship. Self-employment tax is the Social Security and Medicare tax that an employer and employee would normally split. When you work for yourself you pay both halves. The IRS states the rate as 15.3 percent, made up of 12.4 percent for Social Security and 2.9 percent for Medicare.

The IRS topic page on self-employment tax adds three useful details. First, you usually must pay self-employment tax when net earnings from self-employment are $400 or more. Second, generally the amount subject to the tax is 92.35 percent of your net earnings from self-employment, where net earnings are gross business income minus ordinary and necessary business expenses. Third, the tax is figured on Schedule SE (Form 1040), and when you work out your adjusted gross income you can deduct half of the self-employment tax.

The Social Security portion has a ceiling. The IRS topic page says the law sets a maximum amount of net earnings subject to the Social Security tax and that this amount changes annually. A separate IRS page shows the figure for 2024 as $168,600 of combined wages, tips, and net earnings. We do not print a current-year figure because the pages we opened did not give one. The Medicare portion does not have that ceiling on the pages we read. Look up the current-year limit on the IRS site before you plan around it.

Self-employment tax is separate from income tax. You compute income tax on your taxable income at your own rates, and you compute self-employment tax on your net earnings. A business owner can owe both on the same dollar of profit, which is why the total bill on a given profit is often larger than a first-time owner expects.

Estimated tax: paying during the year

Nobody withholds tax from your business profit, so the IRS expects you to pay as you go. The IRS Self-Employed Individuals Tax Center says estimated tax is the method used to pay Social Security, Medicare, and income taxes when no employer withholds them, and points to Form 1040-ES to calculate the quarterly amounts. The IRS estimated taxes page says individuals, including sole proprietors, partners, and S corporation shareholders, generally have to make estimated tax payments if they expect to owe tax of $1,000 or more when they file. Payments are spread over four payment periods, each with its own due date, and the page says a payment due on a weekend or legal holiday is on time if made the next business day. The pages we opened did not list the four calendar dates, so check the Form 1040-ES instructions for the exact dates each year.

To avoid an underpayment penalty, the IRS topic page on estimated tax says most taxpayers are fine if they owe less than $1,000 after subtracting withholding and refundable credits, or if their withholding and estimated payments add up to at least 90 percent of the current year's tax or 100 percent of the tax shown on the prior year's return, whichever is smaller. The page says Form 2210 can be used to find out whether a penalty is owed. It also says taxpayers should make estimated payments in four equal amounts to avoid a penalty. You can pay online, by phone, or through the IRS app, according to the estimated taxes page.

The estimated payments cover your whole federal bill for the year, income tax and self-employment tax together. Owners with an uneven year, such as a seasonal business, should read the IRS guidance on the available methods rather than assume equal payments always fit.

• Expect to owe $1,000 or more at filing: estimated payments are generally required.
• Four payment periods, each with its own due date; weekend and holiday dates move to the next business day.
• Safe harbor: at least 90 percent of this year's tax or 100 percent of last year's, whichever is smaller.
• Form 1040-ES is the worksheet and voucher; Form 2210 checks for a penalty.

Worked example (hypothetical): $60,000 of net profit

Consider a hypothetical consultant who owns a single-member LLC. In the year, the business collects $85,000 from clients and has $25,000 of ordinary and necessary expenses. Net profit on Schedule C is $85,000 minus $25,000, which is $60,000. This is an illustration, not a prediction of any real return, and it uses only the rates and rules the IRS pages above state.

Step one: the amount subject to self-employment tax is 92.35 percent of net earnings. $60,000 times 0.9235 is $55,410. Step two: the self-employment tax is 15.3 percent of that amount. $55,410 times 0.153 is $8,477.73, which rounds to $8,478. That splits into 12.4 percent, or $6,870.84, for Social Security and 2.9 percent, or $1,606.89, for Medicare. The $55,410 figure is far below the 2024 Social Security ceiling the IRS shows, so the ceiling does not limit the Social Security portion in this example. Step three: half the self-employment tax is a deduction in figuring adjusted gross income. Half of $8,477.73 is about $4,239, which reduces the income that is subject to income tax. It does not reduce the self-employment tax itself.

Step four: because the self-employment tax alone is $8,478, well above the $1,000 threshold, the owner should expect to make estimated payments. If we looked only at the self-employment tax and spread it over four equal payments, each would be $8,477.73 divided by 4, or about $2,119. The income tax portion depends on the owner's other income, deductions, and filing status, and this guide does not estimate it. The point of the example is the order of operations and the size of the self-employment piece, not the final bill.

When the LLC is treated as its own entity anyway

The IRS single-member page is clear that the disregarded rule is for income tax. For employment tax and certain excise taxes, the LLC is treated as a separate entity. The page says that for wages paid after January 1, 2009, the LLC must report and pay employment taxes under its own name and employer identification number. It says the LLC must also use its own name and EIN for excise tax registration and reporting, and for claiming related refunds and credits.

That is the reason hiring is the usual trigger for a separate EIN. The IRS page says a single-member LLC needs its own EIN if it has any employees or must file certain excise tax forms. An LLC without those obligations does not need one for federal purposes, though the page says it may still get one, for example to open a bank account or if state law requires it. Without an EIN of its own, a disregarded LLC generally uses its owner's Social Security number or EIN on income-related reporting, according to the page. Many owners get an EIN anyway so that clients and banks never need their personal number. Our guide to getting an EIN for an LLC covers the application and the mistakes to avoid.

State taxes are a separate matter. Nothing on the IRS pages we read describes state income tax, sales tax, or franchise tax treatment, and those rules differ by state. Your state page on this site lists the formation fee and recurring state charge we checked, and the state revenue department is the source for everything else.

Changing the default: Form 8832 and the S corporation election

The default is a starting point, not a requirement. The IRS says a single-member LLC is disregarded unless it files Form 8832 and affirmatively elects to be treated as a corporation. The IRS Limited Liability Company page adds that the election generally cannot take effect more than 75 days before the date it is filed or more than 12 months after, and that late election relief may be available in some circumstances. A separate choice, the S corporation election on Form 2553, is covered with its deadline in our LLC vs. S corporation guide.

Whether an election saves money depends on profit level, reasonable pay for the owner's work, payroll costs, and state rules, none of which can be settled in a general guide. The decision is worth putting in front of a tax professional once profit is steady, with the numbers from your own Schedule C in hand.

A short setup list for a new one-owner LLC

Most of the tax work for a single-member LLC is habit rather than paperwork. Open a separate business bank account so the profit figure is easy to compute, because a clean record is what makes Schedule C quick to prepare. Our guide to opening a business bank account for an LLC covers what banks usually ask for. Record income and expenses as they happen. Set aside a share of each payment for taxes in a separate account, so the quarterly payments are not a surprise. Put the estimated payment periods on the same calendar as your state annual report, using the compliance calendar tool on this site.

• Keep business and personal money in separate accounts from the first day.
• Record income and ordinary and necessary expenses as they occur.
• Set aside part of each payment for tax rather than spending the whole deposit.
• Calendar the four estimated payment periods and the state recurring filing together.
• Get an EIN before hiring anyone.

Checklist

1. Confirm the LLC has exactly one member, so the disregarded default applies.
2. Identify the right schedule for the activity (Schedule C for most service and sales businesses).
3. Track net profit: income minus ordinary and necessary business expenses.
4. Estimate self-employment tax at 15.3 percent of 92.35 percent of net earnings.
5. Check whether estimated payments are required ($1,000 or more expected owed).
6. Look up the four current-year payment dates in the Form 1040-ES instructions.
7. Apply for your own EIN before you hire an employee.
8. Decide whether a Form 8832 or Form 2553 election is worth asking a tax professional about.
9. Put the state recurring filing on the same calendar.

Next step

Use the linked tools and state records before you rely on a general rule. LLC duties turn on the state, the owners, the activity, and the tax choice.