LLC vs. Sole Proprietorship: Which Is Right for You?

You’ve decided to start a business. Maybe you’re freelancing on the side, launching an online store, or turning a skill into a consulting practice. One of the first decisions you’ll face is deceptively simple: What kind of business entity should I be?

For most new small business owners, the real choice comes down to two options: a sole proprietorship or a limited liability company (LLC). Corporations, partnerships, and other structures exist, but they’re rarely the right starting point for a one-person or small business.

This guide explains the meaningful differences between these two structures in plain English, with real numbers, so you can make the right call for your specific situation.

The Quick Answer

If you’re looking for the short version, here it is.

Choose a sole proprietorship if: You’re testing a business idea, your revenue is low (under $10,000 to $20,000 per year), you have minimal assets to protect, and you want to keep things as simple and cheap as possible.

Choose an LLC if: You’re serious about building this business, you want personal liability protection, your business carries any meaningful risk of lawsuits or debts, or you plan to earn more than $30,000 to $40,000 per year in profit.

Now let’s dig into the details.

What Is a Sole Proprietorship?

A sole proprietorship is the simplest form of business. In fact, if you earn money doing anything outside of a traditional job and you haven’t filed paperwork to create another entity, you are already a sole proprietor in the eyes of the IRS.

There is no formation process. No filing fee. No annual reports. You and the business are legally the same entity.

Pros:

• Zero cost to start
• No paperwork to form (though you may still need a local business license)
• Simplest tax filing: business income and expenses go on Schedule C of your personal return
• Full control with no operating agreement needed

Cons:

• No liability protection whatsoever (this is the big one)
• Harder to open a business bank account (some banks require an EIN or DBA)
• Looks less professional to some clients and partners
• Cannot bring on co-owners without restructuring
• Harder to build business credit

About 73% of all U.S. businesses are sole proprietorships, according to IRS tax return data. It is by far the most common structure. But “most common” does not mean “best for you.”

What Is an LLC?

A limited liability company is a legal entity that is separate from you as a person. You create it by filing articles of organization (sometimes called a certificate of formation) with your state. Once formed, the LLC exists as its own legal “person” that can own property, enter contracts, and take on debts.

The key feature is right there in the name: limited liability.

Pros:

• Personal assets (your home, car, savings) are protected from business debts and lawsuits
• Flexible tax treatment (can be taxed as a sole proprietorship, partnership, S-Corp, or C-Corp)
• More credibility with clients, banks, and partners
• Can add members (co-owners) without restructuring
• Easier to build business credit

Cons:

• Costs money to form ($40 to $500 depending on the state)
• Annual fees or reports required in most states ($0 to $800 per year)
• Slightly more complex record keeping
• Some states impose additional taxes (California’s $800 annual franchise tax being the most notable example)

The Liability Question: This Is the Big One

Let’s say you’re a sole proprietor running a consulting business. A client claims your advice caused them a $200,000 loss and sues you. As a sole proprietor, that lawsuit targets you personally. Your savings account, your car, your home equity: everything is on the table.

Now imagine the same scenario with an LLC. The client sues your LLC, not you personally. If the LLC doesn’t have $200,000 in assets, the client generally cannot come after your personal property. The “corporate veil” separates your business liability from your personal finances.

There are important caveats here.

An LLC does NOT protect you from:

• Personal negligence or fraud you commit
• Debts you personally guarantee (most business credit cards and many small business loans require a personal guarantee)
• Failing to maintain the separation between personal and business finances (this is called “piercing the corporate veil”)

To maintain your LLC’s protection, you must:

• Keep a separate business bank account
• Never mix personal and business funds
• Sign contracts in the LLC’s name, not your personal name
• Maintain adequate insurance
• Follow your state’s annual filing requirements

An LLC is not a magic shield. Think of it as one important layer of protection that works alongside business insurance and good financial practices.

Tax Implications: More Similar Than You Think

Here’s something that surprises many new business owners: a single-member LLC and a sole proprietorship are taxed exactly the same way by default.

The IRS treats a single-member LLC as a “disregarded entity.” That means your business income flows through to your personal tax return on Schedule C, just like a sole proprietorship. You pay income tax on your net profit, plus self-employment tax (Social Security and Medicare) of 15.3% on the first $168,600 of net self-employment income (2026 threshold, adjusted annually).

Tax Example: $75,000 in Business Profit

Tax Component	Sole Proprietorship	Single-Member LLC
Federal income tax (22% bracket, simplified)	$8,377	$8,377
Self-employment tax (15.3%)	$10,597	$10,597
State income tax (varies)	Varies	Varies
Total federal tax burden	$18,974	$18,974

Identical. The LLC structure alone does not change your tax bill.

Where Tax Treatment Gets Interesting: The S-Corp Election

Once your business is consistently profitable above roughly $40,000 to $50,000 per year, an LLC gives you a tax planning option that sole proprietors don’t have: the S-Corp election.

With an S-Corp election (filed using IRS Form 2553), you can split your business income into two buckets:

1. A “reasonable salary” paid to yourself (subject to payroll taxes of 15.3%)
2. Distributions from remaining profit (subject to income tax but NOT self-employment tax)

This can produce meaningful tax savings. Let’s look at the numbers.

S-Corp Tax Savings Example: $100,000 in Business Profit

Without S-Corp election (standard LLC or sole prop):

• Self-employment tax on $100,000: approximately $14,130
• (Calculated on 92.35% of net self-employment income)

With S-Corp election, paying yourself a $55,000 salary:

• Payroll taxes on $55,000 salary: approximately $8,415
• Distributions of $45,000: $0 in self-employment/payroll tax
• Annual tax savings: approximately $5,715

That is real money. Over five years, that is over $28,000 in savings.

But the S-Corp election also adds costs and complexity:

• You must run payroll for yourself ($30 to $150/month for payroll services)
• You must file a separate S-Corp tax return (Form 1120-S), which typically costs $500 to $1,500 if prepared by a CPA
• The salary you pay yourself must be “reasonable” for your industry and role. The IRS scrutinizes artificially low salaries.
• Quarterly payroll tax filings are required

The general rule of thumb: the S-Corp election starts making financial sense when your net business profit consistently exceeds $40,000 to $50,000 per year, after accounting for the added cost of payroll and tax preparation. Below that threshold, the tax savings don’t justify the added complexity and expense.

A sole proprietor cannot make the S-Corp election. You must first form an LLC (or corporation) to access this option. This is one of the strongest financial arguments for forming an LLC early, even if the tax benefit doesn’t apply to you yet.

Formation and Ongoing Costs

Sole Proprietorship

Expense	Cost
Formation	$0
DBA (“Doing Business As”) filing	$10 to $100 (only needed if operating under a name other than your own)
Annual state requirements	$0 in most states
Local business license	$25 to $100 (varies by city)
Typical first year total	$0 to $200

LLC

Expense	Cost
State filing fee	$40 to $500
Registered agent (required in most states)	$0 to $150/year (you can serve as your own in most states)
Annual report/renewal fees	$0 to $300/year (varies widely by state)
Operating agreement (template)	$0 to $100
California franchise tax (CA only)	$800/year
New York publication requirement (NY only)	$1,000 to $2,000 (one time)
Typical first year total	$50 to $800 (excluding CA and NY special costs)

For most states, the cost difference between these two structures is $50 to $300 in the first year and $0 to $300 per year ongoing. That is a very small price for personal liability protection.

Ongoing Compliance: What You Have to Do Each Year

Sole Proprietorship Annual Requirements

1. File Schedule C with your personal tax return
2. Make quarterly estimated tax payments (if you expect to owe $1,000 or more)
3. Renew any local business licenses
4. That’s it

LLC Annual Requirements

1. File Schedule C with your personal tax return (same as sole proprietorship for single-member LLCs)
2. Make quarterly estimated tax payments
3. File your state’s annual report or statement of information (most states; deadlines and fees vary)
4. Renew your registered agent designation if using a third-party service
5. Renew any local business licenses
6. Maintain a current operating agreement (update if anything changes)
7. Keep meeting minutes if your state or operating agreement requires them

The LLC adds maybe one to two hours of administrative work per year. For most people, this is not a meaningful burden.

When to Upgrade from Sole Proprietorship to LLC

If you started as a sole proprietor (which is perfectly fine for testing a business idea), here are the signals that it is time to form an LLC.

Form an LLC when any of these apply:

• Your annual revenue exceeds $20,000 to $30,000. At this point, you have enough income that the liability protection justifies the cost.
• You’re signing contracts with clients. Contracts create liability. An LLC limits that liability.
• You’re providing professional services or advice. Consulting, coaching, design, development. Any service where a client could claim your work caused them harm.
• You have personal assets worth protecting. A home, savings, investments. If you have nothing, there’s less to protect. Once you do, the calculus changes.
• You want to bring on a partner. Adding a co-owner to a sole proprietorship requires creating a new entity anyway.
• You’re taking on business debt. Credit lines, equipment financing, or loans in the business name.
• You plan to seek outside funding. Investors and lenders take LLCs more seriously than sole proprietorships.

The conversion process is straightforward. You file LLC articles of organization with your state, get a new EIN (recommended, though not always required), update your bank accounts, and notify clients and vendors of your new entity. Most business owners handle it in a day or two.

When to Consider an S-Corp Election (the Next Upgrade)

Once you’re operating as an LLC and your net profit consistently exceeds $40,000 to $50,000 per year, talk to a CPA about the S-Corp election. The potential payroll tax savings can be substantial, but the added compliance costs make it worthwhile only at higher income levels.

The S-Corp election makes sense when:

• Net business profit is consistently above $50,000 per year
• You can pay yourself a reasonable salary and still have meaningful distributions
• You’re already working with a CPA or tax professional
• You can handle the added payroll and filing requirements

The S-Corp election probably doesn’t make sense when:

• Your income is inconsistent or unpredictable
• Net profit is below $40,000 per year
• You want to keep your business administration as simple as possible
• You’re not currently working with a tax professional

Side-by-Side Comparison

Feature	Sole Proprietorship	LLC	LLC with S-Corp Election
Formation cost	$0	$40 to $500	Same as LLC + $0 for Form 2553
Liability protection	None	Yes	Yes
Tax filing	Schedule C	Schedule C	Form 1120-S + W-2 + Schedule K-1
Self-employment tax	15.3% on all profit	15.3% on all profit	15.3% on salary only
Annual compliance	Minimal	Low	Moderate
Best for income level	Under $20,000 to $30,000	$20,000+	$50,000+ consistently
Can add co-owners	No	Yes	Yes
Business credit building	Difficult	Easier	Easier

The Bottom Line

For most new business owners earning meaningful income, an LLC is the right choice. The liability protection alone is worth the modest formation and maintenance costs. And once your profits grow, the LLC gives you access to the S-Corp tax election, which can save you thousands of dollars per year.

If you’re just testing a business idea, starting as a sole proprietor and upgrading later is a perfectly valid path. There’s no shame in starting simple. Just don’t let inertia keep you operating without liability protection once the business becomes real.

Whatever you choose, the most important financial moves are the same regardless of structure: separate your personal and business finances from day one, set aside 25% to 30% of profits for taxes, and track every expense. Get those basics right and you’re already ahead of most new business owners.

This guide is for informational purposes only and does not constitute financial, tax, or legal advice. Business structure decisions have significant legal and tax implications. Consult a licensed CPA or business attorney for guidance specific to your situation. Tax figures reflect 2025/2026 rates and thresholds, which are subject to change.