What Is a Sole Proprietorship? Pros and Cons

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A sole proprietorship is an unincorporated business owned and run by one person, with no legal separation between the owner and the business. The owner keeps all of the profit, reports it on a personal tax return, and is personally responsible for every debt, contract and legal claim the business incurs. In law, the proprietor is the business.

How a Sole Proprietorship Works

A sole proprietor is the only owner, and nothing stands between that person and the business’s obligations. Three consequences follow.

Ownership and control. The owner makes every decision without a board, partners or shareholders. There is no ownership interest to sell in pieces, because no shares or membership units exist. The owner can sell the business’s assets, customer list or name, but not a stake in an entity.

Liability. Debts of the business are debts of the owner. If the business takes out a loan, signs a lease or is sued by a customer, the claim runs against the individual. A creditor who wins a judgment can pursue personal savings, a car or, depending on state exemptions, a home. Business insurance can cover specific risks, but it does not create the legal separation that an LLC or corporation provides.

Continuity. Because the business and the person are the same, the business has no life of its own. If the owner stops working, dies or becomes incapacitated, the sole proprietorship ends, though its assets pass through the owner’s estate.

A sole proprietor can still hire employees, use a trade name, open a business bank account and sign contracts. None of these steps turns the business into a separate entity.

How to Establish a Sole Proprietorship

No formation document is filed with the state, which is why this structure is the default for one-person businesses. Depending on location and activity, the owner may still need to:

1. Get licenses and permits. States, counties and cities may require a general business license, an occupational license or permits for regulated work such as food service or contracting.
2. Register an assumed name. Operating under a name other than the owner’s legal name usually requires a “doing business as” (DBA) filing.
3. Decide on a taxpayer ID. A sole proprietor with no employees can often use a Social Security number. An Employer Identification Number (EIN) from the IRS is required to hire employees and for certain tax filings, and some owners get one anyway to avoid handing out their SSN.
4. Register for sales tax. Selling taxable goods or services requires a state sales tax permit.

How a Sole Proprietorship Is Taxed

A sole proprietorship is a pass-through arrangement: the business pays no income tax of its own. The owner reports business income and expenses on Schedule C, carries the net profit to Form 1040, and pays income tax at personal rates. That means one layer of tax, unlike a C corporation, whose profits are taxed at the corporate level and again when paid out as dividends.

The owner also owes self-employment tax, which covers Social Security and Medicare because no employer is withholding them. The rate is 15.3% (12.4% for Social Security, up to that year’s wage base, plus 2.9% for Medicare), applied to 92.35% of net earnings from self-employment.

Hypothetical example. A freelance designer earns $90,000 in revenue and has $30,000 in deductible business expenses, for a net profit of $60,000. Assuming all earnings are below the Social Security wage base:

• Earnings subject to self-employment tax: $60,000 × 0.9235 = $55,410
• Self-employment tax: $55,410 × 15.3% ≈ $8,478
• Half of that amount (≈ $4,239) is deductible when calculating income tax

Income tax is then figured on the remaining taxable income at the owner’s personal brackets. Because no tax is withheld, sole proprietors generally make quarterly estimated payments.

Eligible owners may also claim the qualified business income (QBI) deduction of up to 20% of qualified business income, subject to income thresholds and limits for certain service businesses.

The last three rows apply only once the owner has employees.

Pros and Cons of a Sole Proprietorship

Advantages

• Fast, inexpensive setup with no formation filing in most cases
• Full control over decisions and all profits
• Single layer of tax, with possible eligibility for the QBI deduction

Disadvantages

• Unlimited personal liability for business debts and lawsuits
• Harder to raise capital: there is no equity to sell, so funding comes from savings, personal credit, bank loans or lines of credit, and lenders may see a new one-person business with a small balance sheet as a higher risk
• Self-employment tax on all net earnings
• The business ends with the owner and is harder to transfer

Sole Proprietorship vs. LLC, Partnership and Corporation

The comparison most owners face is with a single-member LLC. By default the IRS treats a single-member LLC as a “disregarded entity,” so the tax filing looks almost the same as a sole proprietorship. The difference is legal: the LLC is a separate entity, which generally shields the owner’s personal assets from business debts. That protection is not absolute, since owners remain liable for their own wrongdoing and for loans they personally guarantee.

Converting is straightforward. The owner confirms the desired name is available, files articles of organization with the state, adopts an operating agreement and obtains a new EIN where required.

Sole Proprietor vs. Self-Employed

Every sole proprietor is self-employed, but not every self-employed person is a sole proprietor. Self-employment is the broader tax category, which also includes independent contractors, members of partnerships and owners of single-member LLCs. A freelancer who simply invoices clients without registering anything is, by default, a sole proprietor. One who forms an LLC is still self-employed but is no longer a sole proprietor in the legal sense.

Examples of a Sole Proprietorship

Typical sole proprietorships include:

• A freelance writer or graphic designer billing clients under their own name
• A small landscaping or handyman service
• A one-location café run by its owner under a DBA name

Size is not the test. A café with five employees is still a sole proprietorship if one person owns it and no entity was formed.

When a Sole Proprietorship Fits, and When to Move On

The structure suits low-risk businesses with modest profits, such as home-based work, a few repeat clients or a hobby starting to earn money. An LLC or corporation becomes more attractive once the business signs leases or large contracts, faces meaningful risk of injury or property claims, hires staff, seeks outside investors, or earns enough that alternative tax elections could lower the total bill.

FAQs

The Bottom Line

A sole proprietorship suits one-person businesses with low risk and modest profits, such as home-based work or a few repeat clients. Owners gain simple setup and full control but carry unlimited personal liability and pay self-employment tax on all net earnings. Once the business signs leases or large contracts, faces injury or property claims, hires staff or seeks investors, forming an LLC or corporation becomes the stronger choice.