For federal tax purposes, income is almost anything of value you receive that increases your wealth, whether it arrives as cash, property, services, or a debt someone stops asking you to repay. That is the short answer to what is considered income for tax purposes: the Internal Revenue Code defines gross income as “all income from whatever source derived,” and unless a specific statute carves something out, the IRS treats it as taxable.1Office of the Law Revision Counsel. 26 USC 61 – Gross Income Defined A small set of exclusions covers gifts, inheritances, life insurance death benefits, municipal bond interest, and damages for physical injuries. Everything else is on the table.
The Default Rule: If You Received Value, It Counts
The statute is deliberately broad. It does not list every kind of income; it presumes that any clear increase in your wealth belongs on your return, then lets Congress name the narrow exceptions. That framing matters because it changes how you should think about anything unusual you receive during the year. The question is not whether a specific rule says a payment is taxable. The question is whether a specific rule says it is not.
Form of payment does not change the answer either. Cash, a check, shares of stock, a car, a week of services, a forgiven balance on a loan — if it has fair market value and you have control of it, you report that value.
Income From Work
Compensation for your labor is the most familiar category. Wages, salaries, professional fees, commissions, and tips are all taxable, and it does not matter whether your employer pays you in dollars, property, or services.1Office of the Law Revision Counsel. 26 USC 61 – Gross Income Defined If part of your pay comes as company stock, you report the value of those shares on the day you receive them. Employers summarize the year’s compensation on Form W-2.2Internal Revenue Service. Depositing and Reporting Employment Taxes
Independent contractors and freelancers see their payments reported on Form 1099-NEC, but the reporting form is not what triggers tax.3Internal Revenue Service. Reporting Payments to Independent Contractors You owe tax on every dollar you earned from the work, even if no 1099 ever arrives.
For self-employed workers, taxable income is net profit: gross receipts minus allowable business expenses. That net figure carries a second layer of tax beyond regular income tax. Self-employment tax runs 15.3 percent (12.4 percent for Social Security and 2.9 percent for Medicare), with the Social Security portion applying only to net earnings up to $184,500 in 2026.4Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes) You can deduct the employer-equivalent half of that self-employment tax when figuring your adjusted gross income.
Scholarship money is one of the few work-adjacent items with a partial pass. If you are a degree candidate, amounts you spend on tuition, required fees, books, and supplies are not taxable. Amounts spent on room, board, travel, or optional equipment are.5Internal Revenue Service. Topic No. 421, Scholarships, Fellowship Grants, and Other Grants Anything you receive in exchange for teaching, research, or other required services is fully taxable no matter how you spend it.
Income From Investments and Property
Interest on savings accounts, CDs, and corporate bonds is taxable in the year you can access it, and financial institutions report interest of $10 or more on Form 1099-INT.6Internal Revenue Service. About Form 1099-INT, Interest Income Dividends work the same way and are reported on Form 1099-DIV.7Internal Revenue Service. Instructions for Form 1099-DIV Qualified dividends are taxed at the reduced long-term capital gains rates; ordinary dividends are taxed at your regular rate.
When you sell an asset for more than you paid, only the gain is taxable — your original cost (your basis) is treated as your own money coming back to you.8Internal Revenue Service. Topic No. 409, Capital Gains and Losses Holding period sets the rate. Assets held one year or less produce short-term gains taxed at ordinary income rates. Assets held longer than a year produce long-term gains taxed at 0, 15, or 20 percent depending on your income and filing status. For 2026, a single filer with taxable income up to $49,450 pays 0 percent on long-term gains, and the 20 percent rate begins above $545,500. Married couples filing jointly hit the 20 percent rate above $613,700.
A separate 3.8 percent surtax, the net investment income tax, applies on top of regular tax to interest, dividends, capital gains, rental income, and royalties once your modified adjusted gross income crosses these thresholds:9Internal Revenue Service. Topic No. 559, Net Investment Income Tax
- $200,000 for single filers and heads of household
- $250,000 for married couples filing jointly
- $125,000 for married filing separately
The statute does not adjust these thresholds for inflation, so more households cross them each year.
Rent from tenants is taxable and includes more than the monthly check: advance rent, lease-cancellation payments, and expenses a tenant pays for you all count.10Internal Revenue Service. Publication 527 (2025), Residential Rental Property Expenses like mortgage interest, property taxes, insurance, repairs, and depreciation offset it. One boundary worth knowing: if you rent out a home you also use personally for fewer than 15 days in the year, you do not report the rental income at all. Royalties from patents, copyrights, mineral rights, or oil and gas property are taxable and reported on Schedule E.11Internal Revenue Service. About Schedule E (Form 1040), Supplemental Income and Loss
Income You May Not Think Of As Income
The categories below catch many taxpayers off guard because no cash changed hands, or because the payment felt like a windfall rather than earnings.
Fringe Benefits
Any fringe benefit an employer provides is taxable unless a specific exclusion applies.12Internal Revenue Service. Publication 15-B (2026), Employer’s Tax Guide to Fringe Benefits Personal use of a company car, an employer-paid vacation, and similar perks are added to your taxable wages at fair market value. Employer-paid health insurance premiums and small-value items like occasional snacks or branded merchandise are excluded. Cash and cash equivalents, including gift cards, never qualify as de minimis benefits and are always taxable.
Bartering
Trading goods or services does not sidestep tax. A designer who builds a site for a mechanic in exchange for car repairs reports the fair market value of the repairs as income, and the mechanic reports the value of the website.13Internal Revenue Service. Topic No. 420, Bartering Income Both parties recognize the income in the year they receive the goods or services.
Gambling, Prizes, and Awards
All gambling winnings — casinos, lotteries, sports betting, raffles, fantasy sports — are fully taxable.14Internal Revenue Service. Topic No. 419, Gambling Income and Losses The same goes for prizes. Winning a car on a game show or a vacation in a raffle means reporting the fair market value on your return.15Internal Revenue Service. Publication 525 (2024), Taxable and Nontaxable Income Gambling losses are deductible only up to the amount of winnings, and only if you itemize.
Canceled Debt
If a lender forgives what you owe, the forgiven amount is usually income. A $10,000 credit card write-off is treated as $10,000 you received.16Internal Revenue Service. Topic No. 431, Canceled Debt – Is It Taxable or Not? The lender reports it on Form 1099-C. Exclusions apply if the cancellation occurred in a Title 11 bankruptcy, if you were insolvent immediately before the cancellation (up to the amount of your insolvency), or if it was a qualifying student loan discharged before January 1, 2026.17Internal Revenue Service. Publication 4681 (2025), Canceled Debts, Foreclosures, Repossessions, and Abandonments You claim an applicable exclusion on Form 982.
Digital Assets
The IRS treats cryptocurrency, stablecoins, and NFTs as property rather than currency. Selling, exchanging, or otherwise disposing of a digital asset triggers a capital gain or loss under the same short-term and long-term rules that apply to stock.18Internal Revenue Service. Digital Assets Beginning in 2026, brokers are required to report cost basis on certain digital asset transactions.
Alimony and Jury Duty Pay
Alimony under a divorce or separation agreement finalized before 2019 is taxable to the recipient and deductible by the payer. For agreements executed after 2018, or older agreements modified to adopt the new rule, alimony is neither taxable nor deductible.19Internal Revenue Service. Topic No. 452, Alimony and Separate Maintenance Jury duty pay is taxable; if your employer required you to hand it over, you can claim an offsetting adjustment.
Retirement Distributions and Social Security
Withdrawals from traditional IRAs and 401(k) plans are taxed as ordinary income because the contributions went in pretax. Pension payments follow the same logic and are reported alongside these distributions on Form 1099-R.20Internal Revenue Service. About Form 1099-R, Distributions From Pensions, Annuities, Retirement or Profit-Sharing Plans, IRAs, Insurance Contracts, etc. Withdrawals before age 59½ generally carry an additional 10 percent early withdrawal tax on top of regular income tax, subject to several statutory exceptions.21Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions SIMPLE IRA withdrawals within the first two years of participation face a 25 percent penalty instead.
Social Security benefits may be partly taxable, depending on your combined income (adjusted gross income plus tax-exempt interest plus half of your benefits). A single filer with combined income above $25,000 may owe tax on up to 50 percent of benefits; above $34,000, up to 85 percent become taxable.22Office of the Law Revision Counsel. 26 USC 86 – Social Security and Tier 1 Railroad Retirement Benefits For married couples filing jointly, the equivalent thresholds are $32,000 and $44,000.23Social Security Administration. Must I Pay Taxes on Social Security Benefits? These figures are fixed in the statute and have never been indexed to inflation.
What Is Not Considered Income
The exclusions are narrower than most people assume. The main ones:
Gifts and inheritances. Money or property you receive as a gift or inheritance is not included in your gross income.24Office of the Law Revision Counsel. 26 USC 102 – Gifts and Inheritances Any gift tax owed falls on the giver, not you. But income the property later produces — dividends, interest, rent — is taxable, and if you sell inherited property for more than its fair market value on the date of death, the gain is taxable.25Internal Revenue Service. Gifts and Inheritances
Life insurance death benefits. Proceeds paid to you as a beneficiary are generally not taxable.26Internal Revenue Service. Life Insurance and Disability Insurance Proceeds If the insurer holds the money and pays interest on it, that interest portion is taxable.
Municipal bond interest. Interest on bonds issued by state and local governments is excluded from federal gross income, with limited exceptions for certain private activity and arbitrage bonds.27Office of the Law Revision Counsel. 26 USC 103 – Interest on State and Local Bonds
Damages for physical injury or physical sickness. Compensation received in a lawsuit or settlement for physical injuries is generally excluded, whether paid as a lump sum or installments.28Office of the Law Revision Counsel. 26 USC 104 – Compensation for Injuries or Sickness Punitive damages are always taxable, even in a physical-injury case, and damages for emotional distress not tied to a physical injury are taxable too.
When You Must Report and What Happens If You Don’t
For the 2025 tax year, most single filers under 65 must file a federal return if gross income reaches $15,750. The threshold is $31,500 for married couples filing jointly where both spouses are under 65. Self-employed workers with net earnings of $400 or more must file no matter what their total income is.29Internal Revenue Service. Check if You Need to File a Tax Return The thresholds are adjusted annually.
Underreporting income carries two main penalties. The accuracy-related penalty is 20 percent of the underpayment when you understate your tax by the greater of 10 percent of the correct tax or $5,000.30Internal Revenue Service. Accuracy-Related Penalty The failure-to-pay penalty accrues at 0.5 percent of the unpaid balance per month, capped at 25 percent, and drops to 0.25 percent per month once you have an approved installment agreement.31Internal Revenue Service. Failure to Pay Penalty State income taxes sit on top of federal obligations with their own filing rules and penalties.