Who needs to file taxes in the US? Most people earning above the standard deduction threshold ($15,750 for single filers under 65 in the 2025 tax year) are required to file a federal return. Self-employed individuals face an even lower bar: just $400 in net earnings. But even if you’re not required to file, doing so could put money back in your pocket through refunds and tax credits.
TL;DR
- Your filing requirement depends on income, age, and filing status. The IRS sets specific thresholds each year.
- Self-employed? You must file if you earned $400 or more in net income, no matter what your total is.
- Skipping a required return triggers penalties of 5% per month on unpaid taxes (up to 25%), plus compounding interest.
- Even if you’re not required to file, you may be leaving refunds and valuable credits unclaimed.
- Contributing to an IRA requires earned income. Filing your taxes helps document that income and allows you to claim potential tax benefits.
Figuring out whether you actually need to file a federal tax return can feel like decoding a system that was never designed for clarity. There are income thresholds, age cutoffs, special rules for the self-employed, and exceptions stacked on top of exceptions. So let’s walk through this step by step, starting with the straightforward answer, and then moving into the parts most people overlook entirely.
The path from “do I have to file?” to “should I file even if I don’t have to?” is shorter than you’d expect, and understanding it fully can change how you think about tax season. Your return isn’t just a form the government asks for. It’s also the key to refunds, credits worth thousands of dollars, and retirement accounts that compound over decades. Knowing where you stand is the first step, and once you see the full picture, the next steps become obvious.
What this means for you: Filing your taxes, whether required or not, is one of the most underrated financial moves of the year. It connects you to refunds, credits, and long-term tools like an IRA. If you’re also wondering whether you can invest without a Social Security Number, here’s how to invest with an ITIN through Finhabits.
What Are the Income Thresholds That Trigger a Filing Requirement?
The IRS doesn’t ask everyone to file. Whether you’re required to depends on three variables: your gross income, your filing status, and your age. The standard deduction—the portion of your income the IRS doesn’t tax—determines the filing threshold for most people. For the 2025 tax year, according to IRS Publication 501, these are the thresholds that matter:
- Single, under 65: $15,750
- Married filing jointly, both under 65: $31,500
- Head of household, under 65: $23,625
- Single, 65 or older: $17,750
If your gross income sits below the number that applies to you, you generally aren’t required to file a federal return. But that word “required” deserves attention. Not being required to do something and having no reason to do it are two completely different things. There are situations—refunds, tax credits, retirement planning—where filing voluntarily is one of the smartest financial decisions you can make in a given year.
What If You’re Self-Employed? The Bar Is Much Lower
This is where the path takes a turn that catches many people off guard. If you earn money as a freelancer, gig worker, independent contractor, or through any kind of side hustle, the filing rules that apply to you are completely separate from those of traditional W-2 employees. You must file a federal return if your net self-employment income reaches $400 or more, even if your total income falls well below the standard deduction.
That threshold is so low because self-employment triggers the self-employment tax, a combination of Social Security and Medicare taxes at a combined rate of 15.3%. These contributions kick in regardless of whether you owe any income tax at all. The $400 figure exists specifically to capture those contributions into the system.
There’s another misconception worth clearing up: the belief that if no client sent you a 1099 form, you’re off the hook. You’re not. The legal obligation to report your income is yours, not your client’s. Keep records, track what you earned, and file regardless of which forms arrive (or don’t arrive) in the mail.
You Might Not Have To, But You Probably Should
This is where the journey shifts from obligation to opportunity, and it’s a turn worth paying close attention to. Millions of Americans skip filing every year because their income falls below the threshold. Technically, they’re within their rights. Financially, they’re often walking away from money that already belongs to them.
If your employer withheld federal taxes from your paychecks throughout the year, the only mechanism for recovering that money is a tax return. No return filed, no refund issued, even if you earned far less than the filing threshold.
Then there are refundable tax credits—credits that can pay you even if you owe zero in taxes—and these can be genuinely significant. The Earned Income Tax Credit (EITC), a refundable credit designed for low- to moderate-income workers, can put up to $8,046 back in your hands for the 2025 tax year depending on your income and number of qualifying children.
Iif you have three or more qualifying children. About 1 in 5 eligible filers miss this credit entirely. The Child Tax Credit (up to $2,200 per child, depending on eligibility) and the American Opportunity Tax Credit for education expenses don’t just reduce what you owe; they can generate a cash refund. But none of that reaches you unless you file.
What Happens If You Don’t File Taxes?
The consequences of skipping a filing hinge entirely on one question: do you owe anything? If you don’t owe and simply never filed, there’s no penalty from the IRS. But you lose access to any refund or credit you would have received, and after three years, those unclaimed refunds expire permanently. That money vanishes.
If you do owe and don’t file, the math turns against you quickly. The IRS imposes a failure-to-file penalty—a charge for every month your return is overdue—of 5% of unpaid taxes for each month your return is late, capped at 25%. On top of that, there’s a separate failure-to-pay penalty of 0.5% per month, and interest accrues on both amounts simultaneously.
To put real numbers on it: if you owe $2,000 and file six months late without having requested an extension, the failure-to-file penalty alone could add $500 to your bill, before interest even enters the picture. That’s money lost to nothing but delay.
How Does Filing Taxes Open the Door to an IRA?
Beyond refunds and penalty avoidance, filing your taxes creates something less obvious but genuinely powerful: a documented financial record. Earned income is what allows you to contribute to an Individual Retirement Account (IRA). Filing your taxes helps document that income and ensures you can access any associated tax benefits.—a tax-advantaged savings account designed specifically for long-term retirement.
To contribute to an IRA, whether Traditional or Roth, you need documented earned income on file. For 2025, you can contribute up to $7,000, or $8,000 if you’re 50 or older. A Traditional IRA contribution may also reduce your taxable income that same year, which means filing could lower your current tax bill and begin building your retirement savings in one move.
While you can contribute to an IRA as long as you have earned income, filing your taxes ensures that income is properly documented and allows you to claim any tax advantages tied to those contributions. Most people never draw a line between these two things (filing taxes and building retirement savings) but once you see the connection, tax season starts looking less like a chore and more like a launchpad.
Common Mistakes to Avoid
Waiting too long on a past-due return. The IRS is generally more lenient with people who come forward on their own. First-time penalty abatement can sometimes reduce what you owe, but every month of delay compounds the cost. If you’re behind, the best day to start catching up is today.
Assuming low income means no benefit. Even earning $12,000 a year could qualify you for the EITC or allow you to recover taxes that were withheld from your paychecks. Running the numbers takes minutes. Leaving a refund unclaimed lasts years.
Confusing “no penalty” with “no cost.” If you don’t owe and don’t file, the IRS won’t come knocking. But you forfeit your refund, any credits you qualify for, and the financial documentation that comes with having a return on record. The absence of a penalty doesn’t mean the absence of a loss.
Frequently Asked Questions
Do I need to file taxes if I made less than $15,750?
If you’re single and under 65, earning below $15,750 in gross income generally means you aren’t required to file a federal return for the 2025 tax year. The standard deduction—the portion of income the IRS does not tax—sets this threshold. But if any taxes were withheld from your paycheck, filing is the only way to get that money back as a refund. About 1 in 5 eligible filers miss credits like the EITC, which can be worth up to $8,046. For 2024 returns, the average EITC amount was $2,916, according to the IRS.
What are the consequences of not filing taxes in the U.S.?
If you owe and don’t file, the IRS charges a failure-to-file penalty of 5% per month on unpaid taxes, up to 25%. A separate failure-to-pay penalty of 0.5% per month also applies, and interest compounds on both amounts. If your return is more than 60 days late, a minimum penalty of $525 (or 100% of the tax owed, whichever is less) kicks in for returns due in 2026. If you don’t owe, there’s no penalty, but you may forfeit unclaimed refunds after three years.
Do self-employed workers need to file taxes on small earnings?
Yes. If your net self-employment income reaches $400 or more, you’re required to file a federal return, regardless of your total gross income. This threshold exists because self-employment triggers the self-employment tax (a combination of Social Security and Medicare taxes at a combined rate of 15.3%). This rule applies to freelancers, gig workers, rideshare drivers, and independent contractors, even when no 1099 was issued by a client.
Can filing taxes help me open an IRA?
Contributing to an IRA requires earned income, and your your tax return is one of the clearest ways to document it. For 2025, you can contribute up to $7,000 ($8,000 if you’re 50 or older). Filing also determines which IRA type may offer you a deduction. Without a return on file, you’re missing one of the simplest paths to long-term wealth building. To explore your options, learn more about whether non-citizens can open an IRA in the U.S.
When you’re ready to put your tax filing to work, Finhabits can help you open an IRA and start building toward retirement, one step at a time.
Who needs to file taxes in the US isn’t just a compliance question, it’s a financial one. Whether you’re required to file or choosing to because the benefits are too valuable to leave on the table, the act of filing connects you to refunds, credits, and retirement tools that compound over time. The IRS won’t chase you if you don’t owe. But the opportunity cost of staying on the sidelines—unclaimed refunds, missed credits, no access to an IRA—that’s the part that deserves your full attention.
Sources
- Internal Revenue Service (IRS) – Publication 501 (2025), Dependents, Standard Deduction, and Filing Information
- Internal Revenue Service (IRS) – Earned Income and Earned Income Tax Credit (EITC) Tables
All sources accessed and verified on March 24, 2026. External links open in a new window.
Disclaimer:
This material is provided for informational purposes only and is not intended to offer investment, legal, or tax advice. All images and figures are for illustrative purposes. Investment advisory services are offered through Finhabits Advisors LLC, a registered investment advisor with the SEC. Registration does not imply a certain level of skill or training. Past performance is not indicative of future returns. All investments involve risk, including the possible loss of principal. Securities are offered through Apex Clearing Corporation, a Member of FINRA and SIPC. Securities held at Apex are protected up to $500,000, which includes a $250,000 cash limit. See SIPC.org for more details.
Projections are for educational and illustrative purposes only. They are based on the assumptions stated and will change if those assumptions change. They do not predict or reflect the actual performance of any Finhabits portfolio, and they do not account for economic, market, or individual financial factors that can impact real investment outcomes.
For tax-related questions, consult a qualified tax professional and refer to the official information available on the IRS website (irs.gov).
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