What Is the Minimum Income to File Taxes?

For the 2025 tax year, the minimum income to file federal taxes is $15,750 in gross income for a single person under 65. Your exact threshold depends on filing status, age, and whether someone else can claim you as a dependent, and several situations require a return no matter how little you earned.¹

2025 Filing Thresholds by Status and Age

If your gross income for 2025 meets or exceeds the amount listed for your situation, you’re required to file a return.¹

For filers under 65:

Single: $15,750
Head of household: $23,625
Married filing jointly (both spouses under 65): $31,500
Married filing separately: $5
Qualifying surviving spouse: $31,500

Filers who reached 65 by the end of 2025 get a higher threshold because their standard deduction is larger:¹

Single, 65 or older: $17,550
Head of household, 65 or older: $25,625
Married filing jointly, one spouse 65 or older: $33,100
Married filing jointly, both spouses 65 or older: $34,700
Qualifying surviving spouse, 65 or older: $33,100

The $5 married-filing-separately threshold is not a typo. If you’re married and file a separate return, nearly any gross income triggers a filing requirement.²

A separate enhanced deduction of $6,000 ($12,000 for a qualifying joint couple) is available to taxpayers 65 or older starting in 2025 and running through 2028. It can reduce or wipe out the tax you owe once you file, but it does not change the filing thresholds above.³

What Counts as Gross Income

Before you compare your earnings to the thresholds, you need to know what the IRS counts. The tax code defines gross income broadly: all income from any source, including wages, business profits, investment gains, interest, rents, royalties, dividends, pensions, and annuities.⁴ Foreign-source income counts too.

Two items catch people out. Gains from selling your primary residence count toward gross income even if part of the profit qualifies for an exclusion. Social Security benefits are normally not included, but if half your benefits plus your other income exceeds a base amount set by the IRS, some of those benefits get added to your gross income total.⁵

If Someone Can Claim You as a Dependent

Dependents face stricter rules. Earned income (wages, salary, tips) and unearned income (interest, dividends, capital gains) are tested separately.

A single dependent under 65 must file for 2025 if any of these apply:⁶

Unearned income above $1,350
Earned income above $15,750
Gross income above the larger of $1,350, or earned income (up to $15,300) plus $450

A married dependent uses the same earned and unearned limits, and also must file if gross income is $5 or more and the spouse files separately with itemized deductions.¹ The combined-income formula catches students and minors with meaningful investment income on top of a part-time job.

The $400 Rule for Self-Employment

If your net earnings from self-employment reach $400 or more, you must file a return, even if your total income is far below the standard thresholds.⁷ Net earnings means gross business receipts minus ordinary and necessary business expenses. The rule applies to independent contractors, freelancers, and gig workers, and it stands on its own: self-employment can be your only income and still force a return.

Self-employed filers also owe self-employment tax at a combined 15.3 percent rate covering Social Security (12.4 percent) and Medicare (2.9 percent).⁸ Not receiving a Form 1099-K from a payment app doesn’t exempt you: if net earnings hit $400, you file.⁹

Situations That Require a Return at Any Income Level

Some events force a return regardless of how little you earned, so the IRS can reconcile tax-advantaged benefits.

You received advance payments of the Premium Tax Credit through the health insurance marketplace. Filing reconciles the credit against your actual income.¹⁰
You took distributions from a Health Savings Account or Archer Medical Savings Account.¹¹
You owe Social Security or Medicare tax on tips you didn’t report to your employer.¹²
You owe Alternative Minimum Tax.¹³
You owe recapture tax because you disposed of property tied to a prior tax credit.

Why to File Even If You Don’t Have To

Skipping a return you don’t owe can still cost you money. Refundable credits pay you directly, but only if you file.¹⁴

The Earned Income Tax Credit is worth up to $8,046 for 2025 with three or more qualifying children. Income limits run from $19,104 (single, no children) to $68,675 (married filing jointly, three or more children).¹⁴
The Child Tax Credit is worth up to $2,200 per qualifying child under 17 for 2025, with up to $1,700 refundable through the Additional Child Tax Credit.
Up to $1,000 of the American Opportunity Tax Credit is refundable.

Filing is also the only way to recover federal income tax your employer withheld from your paychecks during the year.¹⁵

Penalties If You Should Have Filed and Didn’t

Two penalties can stack. The failure-to-file penalty is 5 percent of unpaid tax per month or partial month, capped at 25 percent. If your return is more than 60 days late, the minimum penalty is $510 or 100 percent of the unpaid tax, whichever is less.¹⁶

The failure-to-pay penalty is 0.5 percent per month, also capped at 25 percent. When both apply in the same month, the failure-to-file penalty drops by the failure-to-pay amount, so the combined charge is 5 percent per month rather than 5.5 percent. The pay rate falls to 0.25 percent per month under an approved payment plan, and rises to 1 percent per month if you ignore a notice of intent to levy.¹⁷

Deadline and Extensions

Your 2025 return is due April 15, 2026.¹⁸ Filing Form 4868 or making an electronic payment marked as an extension gives you an automatic six-month extension to October 15, 2026.¹⁹

An extension gives you time to file, not time to pay. Tax you owe is still due April 15, and interest and penalties accrue on unpaid amounts after that date. To avoid the late-payment penalty during the extension, pay at least 90 percent of your total tax liability by the original deadline.¹⁹

Looking Ahead to 2026

For the 2026 tax year (returns due April 2027), the IRS has announced these approximate filing thresholds for filers under 65:²⁰

Single: $16,100
Head of household: $24,150
Married filing jointly: $32,200
Married filing separately: $5
Qualifying surviving spouse: $32,200

The maximum EITC for 2026 rises to $8,231 with three or more qualifying children.²⁰

State Filing Is a Separate Question

Federal thresholds don’t decide state taxes. Most states set their own filing requirements, and those thresholds vary widely, from as low as $100 in some to figures that roughly mirror the federal standard deduction. Several states require a return from anyone who earns income there, with no minimum at all. Check your state tax agency’s website for the number that applies to you.

1
Internal Revenue Service. Check if You Need to File a Tax Return
2
Office of the Law Revision Counsel. 26 USC 6012 – Persons Required to Make Returns of Income
3
Internal Revenue Service. 2026 Filing Season Updates and Resources for Seniors
4
Office of the Law Revision Counsel. 26 USC 61 – Gross Income Defined
5
Internal Revenue Service. Publication 915 (2025), Social Security and Equivalent Railroad Retirement Benefits
6
Internal Revenue Service. Publication 501 (2025), Dependents, Standard Deduction, and Filing Information
7
Office of the Law Revision Counsel. 26 USC 6017 – Self-Employment Tax Returns
8
Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes)
9
Internal Revenue Service. IRS Issues FAQs on Form 1099-K Threshold Under the One, Big, Beautiful Bill
10
Internal Revenue Service. Premium Tax Credit: Claiming the Credit and Reconciling Advance Credit Payments
11
Internal Revenue Service. Publication 969 (2025), Health Savings Accounts and Other Tax-Favored Health Plans
12
Internal Revenue Service. About Form 4137, Social Security and Medicare Tax on Unreported Tip Income
13
Office of the Law Revision Counsel. 26 USC 55 – Alternative Minimum Tax Imposed
14
Internal Revenue Service. Refundable Tax Credits
15
Internal Revenue Service. Instructions 1040 (2025)
16
Internal Revenue Service. Failure to File Penalty
17
Internal Revenue Service. Failure to Pay Penalty
18
Internal Revenue Service. When to File
19
IRS.gov. Application for Automatic Extension of Time to File U.S. Individual Income Tax Return (Form 4868)
20
Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One, Big, Beautiful Bill