Ordinary business income is money your business makes from its normal operations, taxed at your regular income tax rate instead of a lower capital gains rate

Ordinary business income is the money you earn from doing what your business does — selling products, providing services, or running operations. It is different from capital gains, which come from selling assets like equipment or property. The IRS taxes ordinary business income at your regular income tax brackets, which are typically higher than the long-term capital gains rates that explore when you sell a business asset you have held for more than a year.

The distinction matters because it changes how much tax you owe. If you earn $50,000 in ordinary business income and you are in the 24% tax bracket, you owe tax on that full amount at the 24% rate. If instead you sold business equipment for a $50,000 gain and held it for over a year, that same $50,000 might be taxed at 15% or 20%, depending on your total income.

Key Takeaways

  • Ordinary business income comes from your business's day-to-day operations — revenue minus business expenses — and is taxed at your regular income tax rate.
  • Income from services you provide, products you sell, and fees you charge are all ordinary business income, even if your business is a partnership, S corporation, or sole proprietorship.
  • Capital gains from selling business assets are taxed differently and usually at lower rates if you held the asset for more than one year.
  • Self-employed people report ordinary business income on Schedule C (sole proprietors) or their business entity's tax return, then pay both income tax and self-employment tax on it.

How ordinary business income differs from other income types

Ordinary business income is taxed as regular income because it comes from the work or operations of the business itself. When you sell a service or product, that revenue is ordinary business income. When you earn interest on a business bank account or collect rent from a property your business owns, that is also ordinary business income.

Capital gains, by contrast, come from selling something the business owns — a building, equipment, inventory held as an investment, or the business itself. Long-term capital gains (from assets held over one year) are taxed at preferential rates: 0%, 15%, or 20%, depending on your income level. Ordinary business income has no such preference and is taxed at your marginal tax bracket, which ranges from 10% to 37% for federal income tax in 2024.

Dividends from stocks or bonds, interest from savings accounts, and rental income from property you do not actively manage are also treated differently. Some of these may may have access to for preferential tax treatment. Ordinary business income does not.

Who reports ordinary business income and where

If you are a sole proprietor, you report ordinary business income on Schedule C (Form 1040), which you attach to your personal tax return. You calculate it by subtracting business expenses from business revenue. That net amount flows to your Form 1040 and is taxed at your regular income tax rate. You also owe self-employment tax on this income, which covers Social Security and Medicare.

If your business is structured as a partnership, S corporation, or LLC taxed as a partnership, the business itself files a return (Form 1065 for partnerships, Form 1120-S for S corporations) that calculates ordinary business income. That income then flows through to your personal return on Schedule K-1, which shows your share. You pay income tax and self-employment tax on your share of the ordinary business income.

If your business is a C corporation, the corporation pays corporate income tax on its ordinary business income at the flat 21% federal rate. If the corporation then pays you a dividend, you pay tax again on that dividend as an individual — this is called double taxation. Ordinary business income in a C corporation is taxed at the corporate level first, not at your personal rate.

What counts as ordinary business income

Ordinary business income includes all money your business receives from its core operations. For a consulting firm, it is fees from clients. For a retail store, it is revenue from sales minus the cost of goods sold. For a freelancer, it is payments for work performed. For a rental property business where you actively manage the properties, rental income is ordinary business income.

It also includes income from ancillary business activities. If you run a plumbing business and also sell plumbing supplies to customers, both the service income and the product sales are ordinary business income. If you own a restaurant and sell gift cards, the gift card revenue is ordinary business income when the meal is provided.

Income from business assets that you use in operations — such as interest earned on a business operating account or rent paid to you by a tenant in a building your business owns — is also ordinary business income. The key is that it comes from the business's operations or assets, not from selling the assets themselves.

How self-employment tax applies to ordinary business income

If you are self-employed, you owe self-employment tax on your ordinary business income in addition to regular income tax. Self-employment tax covers Social Security and Medicare and is calculated on Schedule SE (Self-Employment Tax). For 2024, the self-employment tax rate is 15.3% on 92.35% of your net business income (12.4% for Social Security up to a cap, and 2.9% for Medicare with no cap).

This means ordinary business income is taxed twice: once as income tax at your marginal rate, and again as self-employment tax at 15.3%. If you earn $50,000 in ordinary business income and are in the 24% tax bracket, you owe roughly $12,000 in income tax plus $7,065 in self-employment tax, for a combined tax burden of about 38%.

Employees do not pay self-employment tax; their employer withholds Social Security and Medicare taxes from their paycheck. Self-employed people pay both the employee and employer portions themselves, which is why the rate is higher.

Ordinary business income versus passive income and investment income

Passive income — such as rental income from a property you do not actively manage, royalties from a book or patent, or income from a limited partnership where you do not work — is taxed differently than ordinary business income. Passive income is subject to passive activity loss limitations, which can prevent you from deducting losses against other income in some cases.

Investment income, such as interest, dividends, and capital gains, is also taxed separately. may have access to dividends and long-term capital gains receive preferential rates. Ordinary business income receives no such preference.

The distinction matters for tax planning. If you have passive losses from one business, you generally cannot use them to offset ordinary business income from another business. Understanding which category your income falls into helps you calculate your actual tax burden and plan accordingly.

Frequently Asked Questions

Is income from a side business taxed as ordinary business income?

Yes. Whether your business is full-time or part-time, income from providing services or selling products is ordinary business income. You report it on Schedule C (if you are a sole proprietor) or on your business entity's return. You owe both income tax and self-employment tax on it, even if you also have a full-time job.

What if I sell my business — is that ordinary business income?

No. When you sell your business or its assets, the gain is usually a capital gain, not ordinary business income. If you held the business for more than one year, it qualifies for long-term capital gains rates, which are lower than ordinary income rates. However, some assets sold with the business — such as inventory or accounts receivable — may be taxed as ordinary income depending on the sale structure.

Do I owe self-employment tax on all my ordinary business income?

You owe self-employment tax on your net ordinary business income (revenue minus business expenses). The self-employment tax rate is 15.3% on 92.35% of that net amount. If you are an employee of your own S corporation, you may be able to reduce self-employment tax by taking a reasonable salary and distributing the rest as dividends, though this strategy has limits and requires careful planning.

Can I deduct business expenses from ordinary business income?

Yes. Ordinary business income is calculated as revenue minus ordinary and necessary business expenses. Common deductions include supplies, equipment, rent, utilities, insurance, and wages paid to employees. You cannot deduct personal expenses or capital purchases (those go on a depreciation schedule). Keep records of all expenses to support your deductions.