Whether you have to file federal and state taxes depends on how much you earned, your filing status, your age, and where you live. For tax year 2026, a single filer under 65 must file a federal return once gross income reaches $16,100; a married couple filing jointly hits the threshold at $32,200.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 State rules are separate. Nine states charge no income tax on wages at all; the rest set their own thresholds, which are often lower than the federal ones.
Federal Filing Thresholds for 2026
Federal law ties the filing requirement to the standard deduction for your filing status, and the IRS updates those amounts for inflation each year.2Office of the Law Revision Counsel. 26 U.S. Code 6012 – Persons Required to Make Returns of Income Gross income means everything you earned before deductions. If it stays below the threshold for your status, you generally do not have to file.
For tax year 2026, taxpayers under age 65 must file at these income levels:1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
- Single or married filing separately: $16,100
- Married filing jointly: $32,200
- Head of household: $24,150
If you are 65 or older, the threshold is higher. The additional standard deduction is $2,050 for single and head-of-household filers, and $1,650 per qualifying spouse for married filers. A single person 65 or older does not need to file until gross income exceeds $18,150, and a married couple filing jointly where both spouses are 65 or older has a threshold of $35,500.3Office of the Law Revision Counsel. 26 U.S.C. 63 – Taxable Income Defined
When You Have to File Even With Low Income
Several situations force a federal return regardless of whether your income clears the standard threshold.
Self-Employment Earnings of $400 or More
Net self-employment income of $400 or more requires a federal return, whether it came from freelancing, gig work, a side business, or any independent work.4Office of the Law Revision Counsel. 26 U.S.C. 1402 – Definitions The reason is Social Security and Medicare tax, which is not withheld from self-employment pay. You report it on Schedule SE with your Form 1040.
Dependents With Their Own Income
If someone else claims you as a dependent, the bar to file is lower. Dependents must file when their unearned income (interest, dividends, capital gains) or total gross income exceeds limits well below the regular standard deduction, and those figures change each year. The IRS has an online filing requirement tool that shows the current numbers. A dependent’s unearned income above $2,700 can also be taxed at the parent’s rate under the “kiddie tax.”5Internal Revenue Service. Tax on a Child’s Investment and Other Unearned Income (Kiddie Tax)
Other Triggers
A return is also required if you owe the alternative minimum tax, took distributions from a health savings account, owe tax on tips you did not report to your employer, or owe household employment taxes for a nanny or housekeeper. Each of these creates a filing obligation on its own, even when your gross income sits below the standard threshold.
When Filing Is Optional but Worth It
If your income is below the threshold and none of the triggers above apply, you are not required to file. Filing anyway is often the only way to collect money the government already owes you. Any federal tax your employer withheld from your paychecks stays with the Treasury unless you file a return to claim it back. The same is true of refundable credits such as the Earned Income Tax Credit, the Child Tax Credit, and the American Opportunity Credit, which can pay out even when you owe zero tax.6Internal Revenue Service. Refundable Tax Credits
You generally have three years from the original due date to file and claim a refund. After that, the money is gone.
Do You Also Have to File a State Return
States set income tax rules independently of the federal government, so clearing or missing the federal threshold tells you nothing about your state obligation. Nine states charge no income tax on wages: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. Residents of those states do not file a state return for earned income. The remaining states and the District of Columbia all tax income, with their own thresholds, rates, and deductions.
Where you live and where you earn both matter. Residents generally owe their home state tax on all income no matter where they earned it. Non-residents typically owe tax only on income sourced within a state’s borders. If you live in one state and work in another, you may need to file in both, and most states offer a credit for taxes paid to the other state so the same dollars are not taxed twice.
State thresholds are often significantly lower than the federal ones, which means you can owe a state return even when you are not required to file federally. Check your state’s department of revenue for the current numbers. And a federal extension does not automatically extend your state deadline unless the state explicitly honors it.
If You Are a U.S. Citizen Living Abroad
U.S. citizens and permanent residents file federally on worldwide income no matter where they live, using the same thresholds as domestic filers. The foreign earned income exclusion lets qualifying taxpayers exclude up to $132,900 of foreign earnings for tax year 2026, which can bring the tax owed to zero.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 You still have to file a return and attach Form 2555 to claim it.
If the combined value of your foreign financial accounts exceeded $10,000 at any point in the year, you also owe a Report of Foreign Bank and Financial Accounts (FBAR), filed electronically with the Financial Crimes Enforcement Network.7Financial Crimes Enforcement Network. Report Foreign Bank and Financial Accounts The FBAR is separate from your tax return, has its own deadline, and carries steep penalties for failure to file even when no tax is owed.
What Happens if You Should Have Filed and Did Not
The IRS treats failing to file and failing to pay as separate offenses, each with its own penalty, and both can run at once.
The failure-to-file penalty is 5% of the unpaid tax for each month or partial month the return is late, capped at 25%.8Office of the Law Revision Counsel. 26 U.S. Code 6651 – Failure to File Tax Return or to Pay Tax Once a return is more than 60 days overdue, the minimum penalty is $525 or 100% of the tax owed, whichever is less.9Internal Revenue Service. Failure to File Penalty
The failure-to-pay penalty is 0.5% of unpaid tax per month, also capped at 25%, and drops to 0.25% per month if you file on time and set up an approved payment plan.10Internal Revenue Service. Failure to Pay Penalty When both penalties apply in the same month, the failure-to-file penalty is reduced by the amount of the failure-to-pay penalty.
Willfully failing to file can also be charged as a misdemeanor carrying a fine of up to $25,000 and up to one year in prison.11Office of the Law Revision Counsel. 26 USC 7203 – Willful Failure to File Return, Supply Information, or Pay Tax Criminal prosecution is rare and reserved for deliberate evasion, but the failure-to-file penalty is ten times the size of the failure-to-pay penalty, which is why filing on time matters even when you cannot pay the full bill.