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taxes

LLC vs. sole proprietorship: Which saves more on taxes?

By QuickBooks
Published on March 25, 2026

Choosing the right business structure is one of the most important decisions you'll make as an entrepreneur. It affects everything from your personal liability to how you pay taxes. For many freelancers, consultants, and small business owners, the choice often comes down to two popular options: a sole proprietorship or a limited liability company (LLC).

This guide breaks down how each structure is taxed, what you can deduct, and how to plan for tax season, so you can pick the right structure for your business goals.

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Definition of a sole proprietorship

A sole proprietorship is the simplest way to operate a business. If you earn income on your own (without forming an LLC or corporation), the IRS automatically considers you a sole proprietor.

You and the business are legally the same. This means:

  • You have full control over decisions
  • Your business income is reported on your personal tax return
  • You have unlimited personal liability, so your personal assets could be at risk if something goes wrong

There’s no formation process or annual paperwork, which makes this structure attractive for freelancers, gig workers, and new entrepreneurs.

Definition of an LLC (single-member vs. multi-member)

A limited liability company (LLC) is a formal business structure that’s legally separate from its owner(s). This separation provides personal liability protection, meaning your personal assets (like your home or car) are generally protected from business debts and lawsuits.

There are two main types:

  • Single-member LLC: Owned by one person. For tax purposes, the IRS automatically treats it like a sole proprietorship unless the owner elects otherwise.
  • Multi-member LLC: Owned by two or more people. The IRS automatically treats it like a partnership for tax purposes.

Key differences in liability, structure, and registration

While the tax treatment can be similar in some cases, the legal framework for sole proprietorships and LLCs is distinct.

Can a sole proprietor become an LLC later?

Yes. Many businesses start as sole proprietorships and convert later. When your income, risk level, or client load increases, forming an LLC can protect your personal assets and open more tax planning opportunities.

How LLCs are taxed

One of the biggest advantages of an LLC is tax flexibility. The IRS allows an LLC to choose how it wants to be taxed, which can lead to potential tax savings.

Single-member LLC: pass-through taxation to Schedule C

By default, the IRS treats a single-member LLC as a "disregarded entity." This means the LLC itself doesn't pay taxes or file a separate tax return. Instead, the business's income and expenses "pass through" to the owner's personal tax return.

You report this information on Schedule C (Form 1040), the same form used by sole proprietors. The net profit is then added to your other personal income and taxed at your individual income tax rate.

Multi-member LLC: partnership taxation on Form 1065

A multi-member LLC is automatically taxed as a partnership. The LLC files an informational tax return (Form 1065) to report its income, deductions, gains, and losses.

However, the LLC itself doesn’t pay taxes. Instead, it issues a Schedule K-1 to each member, detailing their share of the profits or losses. Each member then reports this information on their personal tax return (Form 1040).

Self-employment taxes for LLC members

If you actively participate in the business, you’re considered self-employed. That means you pay 15.3% self-employment tax (Social Security + Medicare) on your share of the profits. This applies whether you’re in a single-member or multi-member LLC taxed as a sole proprietorship or partnership.

Do I have to pay self-employment tax if I form an LLC?

Yes, unless your LLC elects to be taxed as an S corporation, which can reduce how much of your income is subject to self-employment tax.

How sole proprietorships are taxed

Taxation for a sole proprietorship is straightforward because the business is not a separate entity from its owner.

Pass-through taxation to Schedule C

Just like a single-member LLC, a sole proprietorship uses pass-through taxation. You report all your business income and expenses on Schedule C, which is filed with your personal Form 1040. The net profit from your business is taxed at your personal income tax rate.

Self-employment taxes on net profit

Sole proprietors must pay self-employment tax on their net profit. You calculate this using Schedule SE. You can also deduct half of your self-employment taxes as an adjustment to income.

Filing requirements and deadlines

Sole proprietors must file their Form 1040 with Schedule C and Schedule SE by the annual tax deadline, typically April 15. If you expect to owe more than $1,000 in taxes for the year, you’re also required to make quarterly estimated tax payments to the IRS.

Can a sole proprietor reduce self-employment tax?

Yes, you can lower net profit through legitimate small business tax deductions. The more expenses you claim, the lower your taxable income.

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Key tax differences between LLCs and sole proprietorships

The biggest tax differentiator between an LLC and a sole proprietorship is flexibility. While a sole proprietorship is always taxed the same way, an LLC has options.

Here’s a quick comparison chart of the key tax differences:

Options for electing S corp status for LLCs

An LLC can elect to be taxed as an S corporation, which may reduce self-employment taxes.

Here’s how it works:

  • You pay yourself a reasonable salary
  • The LLC pays payroll taxes only on that salary
  • Additional profits can be distributed as dividends, which are not subject to self-employment tax

For business owners with rising profits, this can lead to notable tax savings compared to remaining a sole proprietor.

Liability protection vs. tax simplicity trade-offs

Understanding how each structure handles liability and taxes can help you choose the setup that saves you time and money.

  • A sole proprietorship offers the ultimate tax simplicity but no liability protection.
  • A single-member LLC offers the same tax simplicity by default, but it also provides an additional layer of liability protection.
  • Electing S corp status for your LLC adds complexity to your accounting and payroll, but can provide big tax savings.

Impact on deductions and retirement contributions

Both structures can deduct ordinary and necessary business expenses. However, forming an LLC that elects S corp status can open the door to more advanced retirement strategies, like solo 401(k) plans based on W-2 salary, which can allow for higher contribution limits.

Which structure gives me more flexibility for tax planning?

An LLC provides more flexibility for tax planning. The ability to choose how you're taxed (e.g., sole proprietorship, partnership, C corporation, or S corporation) allows you to adapt your tax strategy as your business grows and your income changes.

Deductions and write-offs for LLCs vs. sole proprietors

Both sole proprietors and single-member LLCs can deduct a wide range of business expenses to lower their taxable income.

Common business deductions for both

Can a single-member LLC claim the same deductions as a sole proprietorship? Yes, both business structures can claim deductions for expenses that are ordinary and necessary for their trade or business. This includes:

  • Home office expenses
  • Business use of your car
  • Office supplies
  • Software and subscriptions
  • Business travel and meals
  • Professional development and education

Unique deductions or advantages for LLCs

LLCs that elect S corp status may benefit from:

  • Deductible health insurance premiums for owner-employees
  • Employer retirement contributions, such as a Solo 401(k)
  • Possible savings from shifting some income to dividend distributions

Deductions often overlooked by sole proprietors

Many sole proprietors miss out on valuable deductions. Be sure to track:

  • Startup costs: You can deduct up to $5,000 in startup costs in your first year.
  • Bank fees: Monthly service fees on your business bank account are deductible.
  • Professional fees: Costs for accountants, lawyers, and consultants are deductible.
  • Qualified business income (QBI) deduction: Many sole proprietors and LLC owners can deduct up to 20% of their qualified business income.

Pros and cons of each structure for taxes

When comparing an LLC to a sole proprietorship, each structure comes with clear tax advantages and drawbacks that can impact how much you owe and how much flexibility you have as your business grows.

Take a look at the chart below for the pros and cons of each structure:

Tips to maximize tax savings regardless of structure

No matter which structure you choose, good financial habits are the key to saving money on taxes. Here are some tips to consider:

Keep accurate records and receipts year-round

Don't wait until tax season to organize your finances. Keep detailed records of all income and expenses as they happen. Use digital tools or a simple filing system to store receipts so you don't miss a single deduction.

Track business expenses in accounting software

Using small business accounting software, like QuickBooks, is the most efficient way to track your finances. It helps you categorize expenses, run profit and loss statements, and makes tax time much smoother. This ensures you claim every deduction you're entitled to.

Plan quarterly estimated tax payments

Both sole proprietors and LLC owners typically need to pay estimated taxes throughout the year. Plan for these payments to avoid a large tax bill and potential underpayment penalties from the IRS.

Consider retirement contributions and other tax-advantaged strategies

Contributing to a retirement account, such as a SEP IRA or Solo 401(k), is one of the best ways to reduce your taxable income. These contributions are tax-deductible, helping you save for the future while lowering your current tax bill.

How can I make the most of deductions without getting audited?

The best way to avoid an audit is to be meticulous with your records. Keep receipts for every business expense, maintain a separate business bank account, and never mix personal and business funds. If you're unsure whether an expense is deductible, consult a tax professional.

Making the choice: LLC or sole proprietorship?

The right choice depends on where your business is today and where you want it to go. If your business is small and low-risk, a sole proprietorship might be enough. However, as your business grows, forming an LLC may be a better option.

Consider switching to an LLC when:

  • Your income is increasing
  • Your business is taking on more risk
  • You want personal liability protection
  • You want more control over your tax strategy

If you’re unsure which path is right for you, reach out to a QuickBooks Live expert or tax professional who can help you run the numbers and choose the structure that provides the most savings and protection.


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