LLC vs Sole Proprietorship for Side Hustle: Key Differences

Note: Based on publicly available guides; verify details on official sites.

Table of Contents

• Why Your Side Hustle Needs a Legal Structure
• LLC vs Sole Proprietorship: Key Differences at a Glance
• How to Set Up a Sole Proprietorship for Your Side Hustle
• LLC Formation Steps for Your Side Hustle
• Sole Proprietorship Tax Implications for Side Hustles
• LLC Tax Treatment and Compliance for Side Hustles
• How to Choose Between LLC and Sole Proprietorship

Starting a side hustle brings a key decision: should you operate as a sole proprietorship or form an LLC? This guide breaks down the differences in liability, taxes, and paperwork so you can choose the right legal structure for your situation.

Why Your Side Hustle Needs a Legal Structure

Even a small side business can benefit from a formal legal structure. Without one, you may be personally liable for business debts or lawsuits, and you might miss out on tax deductions.

For example, if a client slips on your property or you fail to deliver a paid project, a sole proprietorship leaves your personal savings, home, and car exposed to claims. An LLC, by contrast, creates a legal separation between you and the business, so creditors generally cannot reach your personal assets to satisfy business obligations.

Choosing between an LLC and a sole proprietorship also affects how you pay taxes, how much paperwork you handle, and how much personal protection you have. Sole proprietors report income on Schedule C and pay self-employment tax, while LLC owners may choose how they are taxed—as a sole proprietor, partnership, S-corp, or C-corp.

LLCs typically require state registration fees and annual filings, whereas sole proprietorships often need only a local business license or permit. Laws vary by state, so the details below are general guidance—not legal advice.

Check your state's Secretary of State website for specific requirements and fees.

LLC vs Sole Proprietorship: Key Differences at a Glance

Category	Details
Liability protection	Sole proprietorship—none; you are personally liable for all debts and lawsuits. LLC—personal assets are protected; you are only liable up to your investment in the business.
Tax filing	Sole proprietorship—report on Schedule C with your personal tax return; pay self-employment tax on net earnings. LLC—default pass-through taxation; you may also elect S-corp status to potentially reduce self-employment tax.
Setup cost	Sole proprietorship—minimal; often just a business license or permit. LLC—state filing fee, typically $50–$500 depending on state.
Ongoing paperwork	Sole proprietorship—minimal; just annual tax filing. LLC—annual report and franchise tax in many states.
Bank account	Sole proprietorship—can use a personal account, but a separate business account is recommended. LLC—must have a separate business bank account to maintain liability protection.
Growth potential	Sole proprietorship—limited; you cannot bring in partners or investors easily. LLC—can add members, raise capital, and convert to a corporation later.

This table summarizes the main differences between a sole proprietorship and an LLC for a side hustle.

If you are still deciding, start with a sole proprietorship if your side hustle is low-risk and you want to test the waters. Move to an LLC once you have consistent revenue, significant assets, or potential liability concerns.

How to Set Up a Sole Proprietorship for Your Side Hustle

Setting up a sole proprietorship is the simplest and least expensive way to start a side business. You often don't need to register with the state, but you may need local licenses or permits.

Here's a step-by-step checklist:

1. Choose a business name (check your state's naming rules).
2. Apply for any required local licenses or permits.
3. Get an Employer Identification Number (EIN) from the IRS if you have employees or want to open a business bank account.
4. Track your income and expenses for tax purposes.

Because a sole proprietorship doesn't require formal registration, you can start immediately. However, you have unlimited personal liability, meaning your personal assets are at risk if your business is sued or incurs debt.

LLC Formation Steps for Your Side Hustle

Forming an LLC provides personal liability protection and can lend credibility to your side business. The process involves filing paperwork with your state and paying a fee.

Follow these steps to register an LLC:

1. Choose a unique business name that complies with your state's LLC naming rules.
2. File Articles of Organization with your state's business filing agency.
3. Pay the required filing fee (varies by state).
4. Create an operating agreement (recommended, even if not required).
5. Obtain an EIN from the IRS for tax purposes.
6. Check if you need any local licenses or permits.

Once registered, you'll need to maintain your LLC by filing annual reports and paying franchise taxes in some states. The extra paperwork is a trade-off for limited liability.

Sole Proprietorship Tax Implications for Side Hustles

As a sole proprietor, you report your side hustle income on your personal tax return using Schedule C. You'll pay self-employment tax on your net earnings, which covers Social Security and Medicare.

For 2025, the self-employment tax rate is 15.3% (12.4% for Social Security and 2.9% for Medicare) on net earnings up to the Social Security wage base. You can deduct half of this tax as an adjustment to income on your Form 1040.

You can deduct business expenses like supplies, home office costs, and mileage. For the home office deduction, you can use the simplified method (up to $5 per square foot, maximum 300 square feet) or the regular method based on actual expenses.

Keep receipts and track mileage with a log or app to substantiate your deductions.

However, you are personally responsible for any business debts, and your personal assets are not protected from lawsuits. If you are sued, your personal bank accounts, home, and car could be at risk.

To mitigate this, consider liability insurance, but note that insurance does not cover all claims and an LLC provides a stronger legal shield.

LLC Tax Treatment and Compliance for Side Hustles

An LLC is a pass-through entity by default, meaning profits and losses flow to your personal tax return. As a single-member LLC, you report income on Schedule C just like a sole proprietor, and you pay self-employment tax on net earnings.

You may still pay self-employment tax, but you can choose to be taxed as an S-corp later if it benefits you. To elect S-corp status, file Form 2553 with the IRS, which must be submitted by March 15 of the tax year you want it to take effect.

As an S-corp, you can pay yourself a reasonable salary and take additional distributions that are not subject to self-employment tax, potentially saving on taxes, but you must file a separate corporate tax return (Form 1120-S).

LLCs often have additional state filing requirements, such as annual reports and franchise taxes. For example, California charges an $800 annual franchise tax, while other states may have lower fees or none.

You also need to obtain an EIN from the IRS for the LLC, even if you are a single-member, to open a business bank account and file certain tax returns. The cost and complexity are higher than a sole proprietorship, but the liability protection can be worth it for businesses with higher risk.

If your side hustle involves physical activity, professional advice, or products that could cause harm, the LLC structure provides a legal barrier between your personal assets and business liabilities.

How to Choose Between LLC and Sole Proprietorship

Consider your side hustle's risk level, growth potential, and budget. If your work involves physical activity, professional advice, or products that could cause harm, an LLC offers better protection.

For example, a personal trainer, consultant, or product seller faces higher liability exposure than a freelance writer or graphic designer. If you are in a high-risk field, an LLC is a prudent choice even if your income is still small.

If you're just starting with low risk and minimal income, a sole proprietorship may be sufficient. You can always switch to an LLC later as your business grows.

The transition is straightforward: you would dissolve the sole proprietorship (if you registered a DBA) and file LLC formation documents. Keep in mind that switching may trigger tax consequences, so consult a tax professional before making the move.

Before deciding, check your state's specific rules for LLC formation and fees. Many states offer online filing through their Secretary of State website.

Typical steps include: 1) Choose a unique business name that complies with state rules (e.g., must include "LLC" or "Limited Liability Company"). 2) File Articles of Organization with the Secretary of State and pay the filing fee (ranges from $50 to $500).

3) Appoint a registered agent (you can be your own agent in most states). 4) Create an Operating Agreement, even if you are a single-member, to outline ownership and management.

5) Obtain an EIN from the IRS. 6) Open a separate business bank account.

7) Apply for any required local licenses or permits. Some states require a published notice in local newspapers, so verify your state's specific requirements.

Confirm entity registration and tax forms on your state and IRS official pages.

View official guide

Frequently Asked Questions

Do I need an LLC for a side hustle?

No, you don't need an LLC to start a side hustle. A sole proprietorship is the default structure for self-employed individuals.

However, an LLC provides personal liability protection, which may be important if your business involves risk.

Can I switch from sole proprietorship to LLC later?

Yes, you can convert your sole proprietorship to an LLC at any time. The process involves filing Articles of Organization and meeting your state's requirements.

You'll also need to update your tax information and business accounts.

What are the ongoing costs of an LLC?

LLCs typically have annual fees such as franchise taxes or annual report fees, which vary by state. You may also need to pay for a registered agent service if you don't want to use your own address.

How does liability protection work for an LLC?

An LLC separates your personal assets from business liabilities. If your business is sued or incurs debt, your personal savings, home, and car are generally protected, up to the limits of the law.

However, this protection is not absolute, and you can still be personally liable for your own negligence or misconduct.

What is the difference in taxes between an LLC and a sole proprietorship?

Both are pass-through entities for tax purposes, meaning profits are reported on your personal tax return. The main difference is that an LLC may have additional state taxes and fees, and you can elect to be taxed as an S-corp to potentially save on self-employment taxes.