Business Taxes for Beginners
A new business owner meets a maze of forms and entity names that all seem to imply different tax rules. Underneath the maze are a few structural ideas. This page lays out how the common business structures are taxed and where the income actually shows up.
By Kenny Goodrich, Founder of Money Masters MediaBusiness taxes depend on the structure: sole proprietorships and most partnerships and LLCs are pass-through, meaning profit is taxed on the owner's personal return, while corporations are taxed at the company level, with an S corporation election allowing pass-through treatment instead.
General education about United States federal rules. Rules change and states differ. Last reviewed June 18, 2026.
Why it matters
The single most useful idea in business taxes is pass-through versus corporate. In a pass-through, the business itself usually pays no income tax; the profit flows to the owners and is taxed on their personal returns. A regular corporation is taxed on its own profit, and again when it distributes dividends. Almost every beginner question sits somewhere on that distinction.
The structure also decides where the numbers live. A sole proprietor reports business profit on a Schedule C inside their personal return, while a corporation files its own return. Knowing which form carries the income tells you how the rest of the year should be organized.
Getting the basics straight early prevents expensive confusion later. Mixing business and personal money, missing employment taxes after hiring, or assuming an entity choice changes more than it does are all avoidable once the structure is clear.
How it works
- 1
Sole proprietorship: the default
If you run a business by yourself and take no other action, you are a sole proprietor. The business is not separate from you for income tax: profit is reported on a Schedule C, Profit or Loss from Business, inside your personal Form 1040, and is taxed there. It is the simplest structure and the starting point for most independent work.
- 2
Partnerships and LLCs
A partnership is the multi-owner version of pass-through, with profit flowing to the partners' personal returns. A limited liability company, or LLC, is a structure created by state law mainly for liability protection; for federal tax it is usually treated as a sole proprietorship or partnership by default, so the taxation often looks the same as those even though the legal protection differs.
- 3
Corporations and double taxation
A regular corporation is a separate taxpayer: it is taxed on its own profit, and shareholders are taxed again when they receive dividends, the pattern called double taxation. In exchange, a corporation offers a distinct legal and ownership structure. Whether that trade is worthwhile is a classic question for a professional.
- 4
The S corporation election
An S corporation is not a different kind of company so much as a tax election that lets an eligible corporation or LLC be treated as pass-through, avoiding the corporate-level tax while keeping the corporate structure. It comes with eligibility rules and added complexity, which is why the choice is rarely obvious and often worth professional input.
- 5
Beyond income tax: employment and the money habit
Once a business pays employees, it takes on employment taxes, the withholding and payroll-style taxes for workers, which is a separate responsibility from the owner's own income tax. Underneath every structure is one habit: keep business and personal money separate, so the income, the expenses, and the eventual tax all have a clean place to live.
Practical example
Invented, simplified figures that show the mechanics. Never real rates, quotes, or predictions.
Suppose a small design business earns an invented $50,000 in profit. As a sole proprietorship, that profit lands on the owner's Schedule C and is taxed once on the personal return. As a regular corporation, the company would be taxed on the profit, and the owner taxed again on any dividends taken out. Same profit, a different number of times it passes through a tax. The figure is invented to show the structures, not a recommendation of either.
Common mistakes
- Assuming forming an LLC changes how the income is taxed, when by default it is often taxed like a sole proprietorship or partnership.
- Mixing business and personal money, so income, expenses, and set-aside tax have nowhere clean to live.
- Forgetting that hiring employees adds employment taxes, a separate responsibility from the owner's income tax.
- Choosing or changing an entity based on a confident online claim rather than the eligibility rules and a professional's read.
How to apply it
Orientation pointers for learning, never filing instructions or advice.
- Identify your current structure, since by default running a business alone makes you a sole proprietor reporting on Schedule C.
- Open a separate business account so business income and expenses never mix with personal money.
- If you are weighing an LLC, S corporation, or corporation, list the liability and tax questions to bring to a professional.
- Use the IRS business pages in the sources to confirm which forms your structure requires.
Worth asking a tax professional
These pages teach how the system works. For what it means for you, these are the questions worth bringing to someone qualified.
- Ask a tax professional whether your situation would benefit from a different structure, since the answer depends on profit, liability, and state rules.
- Ask what an S corporation election would and would not change for you, including the eligibility rules and added paperwork.
- Ask which employment-tax obligations apply once you hire your first worker.
Frequently asked questions
How are small businesses taxed?
It depends on the structure. Sole proprietorships, most partnerships, and many LLCs are pass-through, so profit is taxed on the owner's personal return. Regular corporations are taxed at the company level and again on dividends. The structure decides which forms apply and how many times profit is taxed.
What is Schedule C?
Schedule C, Profit or Loss from Business, is the form a sole proprietor files inside their personal Form 1040 to report business income and expenses. It is where the profit of an unincorporated one-owner business is calculated and then taxed on the personal return.
Does an LLC change my taxes?
Often not by default. An LLC is a state-law structure mainly for liability protection, and for federal tax it is usually treated as a sole proprietorship or partnership unless it elects otherwise. The legal protection can differ even when the default tax treatment looks the same.
What is an S corporation?
An S corporation is a tax election, not a separate kind of company, that lets an eligible corporation or LLC be treated as pass-through and avoid corporate-level tax while keeping the corporate structure. It has eligibility rules and added complexity, so the choice is situation-specific.
When do I owe employment taxes?
Once your business pays employees, it takes on employment taxes, the payroll-style withholding and taxes for workers, which is separate from the owner's own income tax. The specifics depend on how and whom you pay, which is a good area to confirm with a professional.
Is this tax advice?
No. This page is general education only and is not personalized tax, legal, accounting, or financial advice, and it is not a recommendation about filing, deductions, or strategy. Tax rules vary by location and change over time, so for your own situation consult a qualified tax professional.
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Sources and last reviewed
- IRS: Business structures (sole proprietorship, partnership, corporation, S corporation, LLC)
- IRS: About Schedule C (Form 1040), Profit or Loss from Business
- IRS: Business taxes overview
Rules and figures on this page were checked against the sources above. Last reviewed June 18, 2026.
Educational content only. This is general information about how United States federal taxes work, not tax, legal, accounting, investment, or financial advice, and not a recommendation about filing, deductions, or strategy. Tax rules change and vary by state and situation. Examples are simplified and hypothetical. For personal decisions, consult a qualified tax professional.