The IRS filing threshold isn't one number — it's a table that shifts by filing status, age, and income type. Miss it in the wrong direction and you either file a return you didn't need to, or skip one that would have sent you a refund check.
For tax year 2025 (the return due April 15, 2026), a single filer under 65 must file if gross income was at least $15,750; married filing jointly under 65 is $31,500; head of household is $23,625. Thresholds rise for filers 65 or older. Separately, anyone with $400 or more in net self-employment earnings must file and pay self-employment tax regardless of these thresholds, and dependents have their own, much lower thresholds. Even under the threshold, filing can be worth it — refunds, withholding refunds, and refundable credits like the EITC don't happen automatically.
Every January, we get some version of the same question in our Jacksonville office: "My income was low this year — do I even need to bother?" It's the right question, but it's usually the wrong question to stop at. The IRS filing threshold tells you when the law requires you to file. It says nothing about whether filing is in your financial interest. Those are different calculations, and confusing them costs people real money every single year.
Here's the mechanic that trips people up: federal income tax withholding doesn't know your final tax liability. If you worked a part-time job for three months, earned $9,000, and had $400 withheld from your paychecks, that $9,000 is almost certainly below the single filer threshold — so you're not required to file. But the IRS is still holding your $400. It doesn't send it back automatically. It sits there until you file a return and claim it. We see this constantly with college students, part-year workers, people who were laid off mid-year, and seasonal employees. Nobody at the IRS calls to say "hey, you overpaid." You have to ask for it back, and the way you ask is by filing Form 1040.
Then there's the category of money the IRS will pay you even if you had zero tax liability and zero withholding: refundable tax credits. The Earned Income Tax Credit (EITC) is the big one — it's specifically designed to phase in as a percentage of earned income for low- and moderate-income workers, and it's refundable, meaning it can generate a payment to you larger than anything you paid in. The Additional Child Tax Credit (ACTC) works similarly for the refundable portion of the Child Tax Credit. The American Opportunity Tax Credit (AOTC) for college expenses is 40% refundable even if you owe no tax. None of these show up in your bank account unless a return gets filed claiming them. If your income was low enough that you fell under the filing threshold, there's a decent chance you're in exactly the income band where EITC pays the most.
In our practice, we see this most often with people who assume "no income tax owed" means "no reason to file." A single parent working part-time, earning $18,000, with two kids — that person is very likely leaving several thousand dollars in EITC and ACTC on the table by not filing, even though nothing in the tax code forces them to.
There's also a clock on all of this. The IRS generally gives you three years from the original due date to file a return and claim a refund. After that window closes, the money becomes the property of the U.S. Treasury — permanently. It's called the refund statute of limitations, and it applies whether the unclaimed money is withholding, estimated payments, or refundable credits. We periodically pull prior-year transcripts for new clients and find refunds sitting unclaimed from two or three years back. Catching missed refunds from prior years is one of the more satisfying parts of what we do — it's not uncommon to find $1,500 to $4,000 in unclaimed money once we go back and check withholding and credit eligibility for years a client assumed weren't worth filing.
The bottom line for this section: treat the filing threshold as a floor for a legal requirement, not a ceiling on when filing makes sense. We'll walk through the actual threshold numbers next, and then spend the rest of this guide on the situations — self-employment income, dependents, marketplace health insurance, prior refunds — where the "requirement" question and the "should I anyway" question genuinely diverge.
These are the gross income thresholds for tax year 2025 — the return most people filed (or extended) between January and October 2026. They come directly from IRS Publication 501's filing requirement chart, and they're built around each filing status's standard deduction after the standard deduction increase enacted by the One Big Beautiful Bill Act (OBBBA) in mid-2025. If your gross income for the year was at or above the number for your status and age, you generally must file a federal return.
A few definitional notes before the table. "Gross income" here means all income you received in the form of money, goods, property, and services that isn't exempt from tax — wages, self-employment net profit, interest, dividends, capital gains, rental income, unemployment compensation, and taxable retirement distributions all count. It's calculated before any deductions. Age is determined as of the end of the tax year, except that the IRS treats you as 65 if you were born before January 2 of the following year — so for 2025, anyone born before January 2, 1961 counts as 65 or older for this purpose.
The married filing separately number deserves its own callout because it looks like a typo the first time people see it — it isn't. If you're married and choose to file separately from your spouse, the threshold is just $5 of gross income, regardless of your age. This isn't an oversight in the tax code; it's intentional, because MFS is generally the least favorable filing status (you lose eligibility for several credits, including the EITC, and face tighter phase-outs on others), so Congress didn't build in a meaningful income cushion for that status.
A couple of scenarios we handle regularly show how this table plays out:
A 68-year-old widow living on Social Security and a modest pension. If her only income is Social Security, that income is often not counted toward the gross income threshold at all (Social Security is only partially taxable, and untaxed portions generally don't count toward the filing threshold calculation), so she may be well under the qualifying-surviving-spouse or single 65+ threshold even with $40,000+ in gross Social Security benefits — but the moment she adds a part-time job, a pension, or a required minimum distribution from a retirement account, the math changes and she needs to run the numbers again.
A married couple, one spouse 63 and one spouse 67, filing jointly. They fall into the "one spouse 65+" row — $33,100 — not the "both 65+" row. It's easy to grab the wrong number here if you're not paying attention to whose birthday falls on which side of the age line.
One more nuance buried in this chart that we flag for clients every year: gross income for the threshold test includes income before you subtract business expenses, but it does not include income that's fully excluded from tax, like most municipal bond interest or properly excluded gain on a home sale. It also generally excludes Social Security benefits unless you have other income that pushes a portion of those benefits into taxable territory. If your only income source is Social Security, run the separate Social Security worksheet before assuming you're over the threshold — most people in that position aren't.
If you're reading this mid-2026 and thinking ahead to the return you'll file in spring 2027, the thresholds are moving, but not dramatically. The IRS published the 2026 inflation adjustments in Rev. Proc. 2025-32, and those numbers incorporate the OBBBA-adjusted standard deduction baseline. The 2026 standard deduction amounts are $16,100 for single filers, $32,200 for married filing jointly, $16,100 for married filing separately, and $24,150 for head of household — each roughly 2.2% higher than the 2025 figures.
The additional standard deduction for taxpayers who are 65 or older, or blind, also increases slightly for 2026: $1,650 per qualifying condition for married taxpayers, and $2,050 for unmarried taxpayers (single or head of household) who are 65+ or blind. Since the IRS builds the "Chart A" filing thresholds directly from the standard deduction plus these additional amounts, you can reasonably project the 2026 filing thresholds using the same formula the IRS has used for years, even before Publication 501 for the 2026 tax year is formally released in early 2027:
Single under 65 would sit at $16,100; single 65+ at roughly $18,150. Married filing jointly, both under 65, at $32,200; one spouse 65+ at roughly $33,850; both 65+ at roughly $35,500. Head of household under 65 at $24,150; 65+ at roughly $26,200. We phrase these as projections rather than confirmed figures because the IRS hasn't published the formal 2026 filing-requirement chart yet — but the underlying standard deduction and additional-amount figures are already locked in by Rev. Proc. 2025-32, so the projected thresholds should be accurate barring a further legislative change.
One genuinely new wrinkle for 2025 through 2028 tax years is the OBBBA "senior deduction" — a temporary additional deduction of $6,000 per qualifying taxpayer age 65 or older ($12,000 for a married couple where both spouses qualify), on top of the existing age-65 additional standard deduction described above. It phases out for taxpayers with modified adjusted gross income above $75,000 (single) or $150,000 (married filing jointly). This is a deduction that reduces taxable income and tax liability — it does not change the gross income filing threshold itself, since the filing threshold is a gross-income test that happens before any deductions apply. But it matters enormously for retirees deciding whether filing is worthwhile: a senior who's just over the filing threshold might have little or no actual tax liability once this deduction, the regular age-65 addition, and the standard deduction all stack up. That's a case where filing to zero out or reduce a balance due, and to establish a clean record with the IRS, is often worth doing even when the numbers are tight.
If you're planning ahead for 2026 income — maybe you're retiring mid-year, starting a business, or expecting a change in filing status from marriage or divorce — don't assume last year's threshold applies unchanged. These numbers move every year with inflation, and 2025 in particular saw a larger-than-typical jump because of the OBBBA standard deduction increase layered on top of the routine inflation adjustment.
This is the threshold that generates the most confused phone calls in our office, because it operates on completely different logic from the filing thresholds in the table above — and it's a much, much lower bar.
Under IRS Topic 554, if you have $400 or more in net earnings from self-employment during the year, you're required to file a federal tax return and complete Schedule SE to calculate and pay self-employment tax — regardless of your total income, your filing status, or whether the income tax thresholds above would otherwise let you skip filing. This $400 figure is not inflation-adjusted; it's been fixed by statute for decades and doesn't move with the standard deduction the way the income thresholds do.
Here's why this surprises so many people: self-employment tax is a completely separate tax from income tax. It's the self-employed version of Social Security and Medicare tax — 15.3% of net self-employment earnings (92.35% of your net profit, technically), covering both the employer and employee shares that a traditional W-2 job would split with your boss. You owe this tax even in years where your total income is so low you owe zero federal income tax. A retiree who picks up $2,000 in DoorDash deliveries to supplement Social Security, a college student who nets $1,200 tutoring on the side, a stay-at-home parent who earns $3,500 selling handmade goods online — all of them are over the $400 threshold and required to file, even though none of them come close to the $15,750 single filer income-tax threshold.
Let's run a few worked examples we see regularly:
A rideshare driver nets $6,800 in Uber earnings for the year after deducting mileage and expenses, and has no other income. That's well above $400, so a return is required. Self-employment tax alone would be roughly $960 (6,800 × 0.9235 × 0.153), even though income tax owed might be zero or close to it after the standard deduction. Filing isn't optional here — it's mandatory because of the SE threshold, independent of the income threshold.
A freelance graphic designer works a full-time W-2 job earning $52,000, and picks up $2,500 in freelance logo design work on the side, paid directly by clients with no 1099 issued. Total income is well over the filing threshold anyway, but the important point is that the $2,500 must be reported as self-employment income on Schedule C, subject to self-employment tax, even without a 1099 in hand. There's no "under $600, no 1099, no reporting" rule for the taxpayer — that's a common and costly misconception.
A retired teacher does occasional consulting and nets $380 for the year. She's under the $400 threshold, so she isn't required to file solely because of self-employment tax — but if her total gross income from all sources (pension, Social Security portion, consulting) meets the regular filing threshold for her status and age, she still has to file for that reason.
A DoorDash driver nets $18,000 for the year, no other income, single, under 65. This person is over both the $400 self-employment threshold and the $15,750 income tax threshold, so they clearly must file — and they'll owe both income tax (on the net profit after the standard deduction) and self-employment tax on the full net earnings.
The 1099 confusion deserves its own paragraph. Many gig workers assume that if the platform doesn't send them a Form 1099-NEC or 1099-K, they don't have to report the income. That's false, and it's worth being blunt about it: all income is taxable unless a specific exclusion applies, whether or not a form was issued. The 1099 reporting thresholds are rules for the payer (when a platform or client must tell the IRS about payments made to you), not rules for you as the recipient. Worth knowing: after the One Big Beautiful Bill Act, the federal 1099-K threshold for third-party payment platforms (Venmo, PayPal, Cash App business accounts, and similar) was restored to $20,000 and more than 200 transactions for 2025 and 2026, reversing a lower $600 threshold that had been phasing in. That means a lot more gig and marketplace sellers won't receive a 1099-K at all going forward — but the $400 self-employment filing rule doesn't care whether a 1099 shows up. You're still required to track your own net earnings and file if they hit $400.
If you're building a side business into something more structured — recurring freelance clients, a growing Etsy shop, a consulting practice that's outgrowing "hobby" status — this is usually the point where it's worth a conversation about whether staying a sole proprietor still makes sense, or whether an LLC or S-corp election starts saving real money on self-employment tax. We cover that decision in detail in our S-corp vs. LLC comparison for Florida business owners, since the self-employment tax exposure that drives this $400 rule is exactly the tax an S-corp election is often used to reduce.
Filing thresholds for a dependent are a completely separate set of numbers from the thresholds that apply to independent adults, and they're much lower — deliberately so, because Congress doesn't want investment income parked in a child's name specifically to dodge parental tax rates.
For 2025, a single dependent under 65 and not blind must file a return if any of the following apply: unearned income (interest, dividends, capital gains) exceeded $1,350; earned income (wages, self-employment, taxable scholarships) exceeded $15,750; or gross income exceeded the larger of $1,350, or earned income (up to $15,300) plus $450. That third test is what catches dependents with a mix of earned and unearned income — a teenager with a summer job and a small custodial brokerage account, for example.
For dependents who are 65 or older, or blind, the thresholds are higher: unearned income over $3,350 (or $5,350 if both 65+ and blind) triggers a filing requirement, as does earned income over $17,750 (or $19,750 if both conditions apply). This matters for adult dependents, not just kids — an elderly parent claimed as a dependent by an adult child follows the dependent chart, not the standard adult chart.
Two scenarios come up constantly in our practice. First: a teenager with a part-time retail or restaurant job earning $6,000 for the year, no investment income. That's well under both the $15,750 earned income threshold and the combined test, so no filing is required — but if federal tax was withheld from those paychecks (it usually is, even at low income), filing to get that withholding back is almost always worth the twenty minutes it takes. Second: a child with a custodial account (UTMA/UGMA) generating $2,200 in dividends and capital gains for the year, no earned income. Unearned income of $2,200 exceeds the $1,350 threshold, so a return is required — and this is where the kiddie tax comes in.
The kiddie tax exists to prevent parents from shifting large amounts of investment income to a child's lower tax bracket. Mechanically, for 2025: the first $1,350 of a child's unearned income is covered by the dependent's own standard deduction and isn't taxed. The next $1,350 (from $1,350 to $2,700) is taxed at the child's own — typically very low — tax rate. Anything above $2,700 in net unearned income is taxed at the parent's marginal tax rate instead of the child's, reported either on the child's own Form 8615 attached to their return, or in some cases elected onto the parent's return using Form 8814. The kiddie tax generally applies to dependents under 19, or under 24 if a full-time student, with some exceptions for a child's own earned income covering more than half their support.
Why this matters practically: if you've set up custodial accounts for your kids and they're generating meaningful dividends or realized gains — a fairly common move among clients who started 529 alternatives or brokerage gifting early — you need to be tracking that unearned income against the $1,350 threshold every year, not just when the account "feels" big. We've seen families surprised by a kiddie tax bill triggered by a single large mutual fund capital gains distribution in an otherwise quiet account, because fund-level distributions count as the child's unearned income even if nothing was sold and no cash was withdrawn.
One more layer: even when a dependent isn't required to file under these thresholds, they may still want to — for the same reason any low earner might: recovering withheld federal tax. A dependent's own filing requirement is entirely separate from whether their parent can still claim them as a dependent; a child can file their own return, pay their own tax if any is owed, and still be claimed as a dependent on the parent's return, as long as the dependency tests (relationship, residency, support, and — for a qualifying child — the age and income tests) are otherwise met.
One advantage of being a Florida resident, and one reason we built our practice in Jacksonville around serving Florida clients specifically, is that Florida has no state individual income tax. There's no separate Florida filing threshold to calculate, no state withholding to reconcile, and no state return to file alongside your federal one for W-2 wages, self-employment income, retirement distributions, or investment income. If you're a Florida resident, everything in this article about "should I file" is a purely federal question.
That advantage doesn't automatically travel with you, though, and we see the gap catch two groups of people every year.
The first group is people who worked in a state with income tax before moving to Florida, or who still earn income sourced to another state. If you moved to Jacksonville mid-year after working the first half of the year in, say, Georgia or New York, you likely owe a part-year resident return to that state for the income earned while you lived and worked there — with its own filing threshold, which is almost always lower than the federal numbers in the table above and needs to be checked against that state's specific rules, not assumed to mirror federal thresholds. The same applies if you're a Florida resident who still earns rental income from a property in another state, or works remotely for stretches of time physically located in a state that taxes non-resident income.
The second group is people relocating to Florida from a state that taxes income, who assume the tax bill simply stops the day the moving truck crosses the state line. State residency rules are stricter than most people expect — many states look at domicile factors (where your driver's license is registered, where you're registered to vote, where your primary home is, how many days you spent in-state) and can still claim you as a resident, and therefore claim tax on your full-year income, if you haven't cleanly established Florida residency. States like California and New York are particularly aggressive about auditing high-earners who claim to have left but kept meaningful ties behind.
If your situation involves income sourced to, or residency questions in, more than one state, that state-level threshold has to be checked against that specific state's tax code — it is not the same number as the federal thresholds in this article, and it's not automatically Florida's "$0, no threshold" situation just because you live here now. We handle exactly this kind of multi-state situation regularly for clients who've relocated to Jacksonville from higher-tax states, and it's one of the more common reasons a "simple" return turns out to need a professional look rather than software that assumes single-state residency.
Here's a scenario that catches people every year, and it has nothing to do with income size: if you or anyone in your household had a Health Insurance Marketplace plan (healthcare.gov or your state's exchange) with advance payments of the premium tax credit sent directly to your insurer during the year, you are required to file a federal tax return and attach Form 8962 to reconcile that credit — even if your income is well under the filing thresholds discussed earlier in this article. The IRS is explicit about this: to claim or reconcile the premium tax credit, you must file, "even if you are not usually required to file."
The mechanics matter here. When you enroll in a Marketplace plan, you estimate your expected income for the year, and the Marketplace calculates an advance premium tax credit based on that estimate, paying it directly to your insurance company to lower your monthly premium. At tax time, your actual income for the year — not the estimate — determines what your premium tax credit should actually have been. Form 8962 compares the two. If your actual income came in lower than estimated, you might be entitled to an additional credit on your return. If it came in higher, you may owe some of the advance credit back, subject to repayment caps that scale with income.
This creates a specific trap for people whose income genuinely was under the standard filing threshold: they assume "I don't need to file" applies universally, skip filing, and then get a notice later because the Marketplace reported advance credit payments made on their behalf that were never reconciled. Unreconciled advance credits can also block you from receiving advance premium tax credits in a future year until you catch up, on top of whatever the underlying reconciliation shows you owe or are owed.
The fix is simple in concept: if a 1095-A showed up in your mailbox or your Marketplace account in late January (insurers and exchanges are required to issue it by January 31 for the prior year), that alone is a strong signal you likely need to file a return for that year regardless of what the income thresholds say. This is a good example of why "do I have to file" isn't purely an income-size question — it's also a question about what kind of income and benefits touched your household during the year. We ask every new client specifically about Marketplace coverage during intake for exactly this reason, because it's one of the filing triggers that's easiest to overlook and most consequential to miss.
Let's separate two very different situations, because they get conflated constantly, and the consequences are wildly different.
Situation one: your income was genuinely below the filing threshold for your status and age, you had no self-employment income over $400, no Marketplace advance credit to reconcile, and no other filing trigger like net investment income above certain amounts for children. In this case, skipping the filing has essentially no downside from an enforcement perspective — the IRS has no expectation you'd file, so there's no notice, no penalty, nothing to catch. The only cost is opportunity cost: any withholding refund or refundable credit you were entitled to simply goes unclaimed, and after three years, unclaimed for good. There's no risk here, just money potentially left on the table — which is the point of the earlier sections of this piece.
Situation two: your income actually was above the threshold, or you had one of the specific triggers covered above (self-employment income over $400, Marketplace advance credits, dependent unearned income over the kiddie tax threshold), and you didn't file. This is genuinely risky, and the risk compounds the longer it goes unaddressed. The clearest version of this we see is a 1099 problem: a client picks up freelance or gig work, earns $8,000, assumes because no W-2 was issued and it "felt informal" that it doesn't need to be reported, and skips filing. The business or platform that paid them, however, issued a 1099-NEC or 1099-K to the IRS reporting that exact payment. The IRS's automated matching system (the Automated Underreporter program) compares information returns like 1099s against filed tax returns, and when there's no return on file at all — or a return that omits that income — it eventually generates a notice, often a CP2000 or a substitute-for-return process where the IRS files a return on your behalf using only the income data it has, with no deductions or credits applied, which almost always overstates what you actually owe.
The gap between "the IRS eventually notices" and "right now" can be a year or more, which is precisely what makes this risky rather than immediately obvious — by the time a notice arrives, penalties and interest have been accruing the whole time. Failure-to-file and failure-to-pay penalties, plus interest, can meaningfully inflate a bill that would have been small or nonexistent if handled proactively. If you're unsure whether a prior year needed to be filed and wasn't, that's worth resolving before the IRS resolves it for you — we go through exactly what triggers this process, what the notices look like, and how to unwind it in our guide to what happens if you don't file taxes.
There's also a version of this that isn't about enforcement risk at all but about future access to benefits and credit. Lenders underwriting a mortgage, buyers underwriting a business sale, and even some visa and immigration processes ask for tax return transcripts covering recent years. A gap where you should have filed but didn't can complicate all of these, even when the underlying tax owed (if any) turns out to be small. If you owed nothing at all but simply never filed, and you later want a mortgage or need to prove income for any official purpose, having no return on file for a required year is its own headache separate from any tax bill.
Given everything above, here's the decision framework we actually use with clients who ask "do I need to file this year?" Work through it in order — the moment you hit a "yes," the answer is generally file, even if your total income looks low.
If you went through that list and every answer was genuinely "no" — no withholding, no self-employment income, no Marketplace coverage, no kids or education credits in play, income clearly under threshold, not a dependent with investment income, no one-time taxable events, and no near-term need for a transcript — then you're in the rare category of people for whom skipping filing truly costs nothing. In our experience, that's a smaller group than most people assume; withholding alone puts the majority of low-income W-2 earners into "should file" territory even when they're not required to.
If you're not sure how to answer even one or two of these questions confidently, that's usually a sign the return isn't as simple as it looks, and it's worth a professional look rather than guessing. We offer a starting consultation specifically for this kind of "do I actually need to file, and what am I missing" question — see our pricing page for how that works, or read more generally about when a DIY return stops being the right call.
Everything above assumes you're a U.S. citizen or a full-year U.S. tax resident using the standard filing thresholds. If you're not — if you're a nonresident alien, a recent immigrant, a green card holder in your first year, or someone who splits time between the U.S. and another country — the filing threshold question gets more complicated before you even get to the dollar amounts.
The first fork in the road is residency status for tax purposes, which is a different test than immigration status. You can hold a valid visa and still be a tax resident, or hold a green card and still have residency-ending events to think about; conversely, some visa holders remain nonresident aliens for tax purposes for years under specific exemptions (certain students and exchange visitors, for example). Tax residency is generally determined by either the green card test or the substantial presence test — a day-counting formula based on days spent in the U.S. over the current and two prior years. Get this determination wrong and everything downstream — which form you file, what income is even subject to U.S. tax, and which threshold applies — is wrong too.
Nonresident aliens generally file Form 1040-NR, not the standard Form 1040, and the filing requirements for 1040-NR are structured differently from the gross income thresholds in our table above — nonresidents engaged in a U.S. trade or business generally must file regardless of income level, and different rules apply to U.S.-source income not connected to a trade or business. This is not a "look up the same table and use a different number" situation; it's a genuinely different framework.
For the first year someone becomes a U.S. tax resident — a new green card holder, or someone who crosses the substantial presence threshold partway through the year — there's often a dual-status year involved, where part of the year is taxed under nonresident rules and part under resident rules, each with different reporting requirements and different treatment of foreign income and accounts. This is also frequently the point where FBAR (Report of Foreign Bank and Financial Accounts) obligations enter the picture for the first time, since resident status can trigger reporting requirements for foreign accounts that existed long before the move to the U.S. — a separate deadline and requirement worth understanding on its own; see our FBAR deadline guide if that applies to you.
Another piece that trips up new arrivals specifically: whether you even have a Social Security Number or need an Individual Taxpayer Identification Number (ITIN) instead affects how — and sometimes whether — you can file at all, independent of the income threshold question. Filing without the correct identifying number in place, or filing under the wrong one, can delay processing or trigger a rejected return regardless of how carefully you calculated the income threshold. We cover that distinction directly in our ITIN vs. SSN guide.
Special situations we handle in this category are a meaningful part of our practice — we work with new arrivals figuring out first-year dual-status filing, green card holders navigating foreign account reporting for the first time, and clients who need service in English, Russian, or Ukrainian to walk through what's often an unfamiliar and higher-stakes filing process than the standard domestic scenario. If you moved to the U.S. recently, don't reason from the standard thresholds in this article without checking your residency status first — our new immigrant U.S. tax guide walks through the residency determination and first-year filing decisions in more depth.
Everything in the earlier self-employment section assumed a sole proprietor: someone earning 1099 or cash income reported directly on their personal return via Schedule C. Once a side business grows into something with its own legal structure — an LLC, an S-corporation election, a partnership — the filing threshold question changes shape entirely.
A single-member LLC that hasn't elected any special tax treatment is, by default, a "disregarded entity" for federal tax purposes — its income and expenses still flow onto the owner's personal Schedule C, and the personal filing thresholds and the $400 self-employment rule from earlier in this article still apply exactly as described. Nothing about forming an LLC by itself changes when you're required to file a personal return; it mainly changes your liability protection, not your tax filing mechanics.
An S-corporation is a different story, and it's one of the most common points of confusion we untangle for Florida small business owners. An S-corp must file its own informational return (Form 1120-S) regardless of how much profit or loss it generated — including years with zero income or even a loss — because the IRS requires the entity return to determine how income, deductions, and credits pass through to the shareholders' personal returns via Schedule K-1. There is no gross income threshold that lets a formally elected S-corp skip its entity-level filing the way an individual under the personal thresholds can skip a 1040. Miss that filing and you're looking at penalties calculated per shareholder, per month late — a cost structure that has nothing to do with the personal income thresholds discussed throughout this article.
This is also where the reason people elect S-corp status in the first place connects back to the $400 self-employment tax rule from earlier: S-corp shareholder-employees pay themselves a reasonable salary subject to payroll tax, and the remaining profit can often be distributed without being subject to the 15.3% self-employment tax that applies to sole proprietor and default LLC profit. For a growing side business clearing meaningfully more than a few thousand dollars a year in net profit, that difference is often the actual financial reason to consider the switch — not the personal filing threshold question this article is centered on, but the entity-level tax structure question that sits one layer above it. We break down when that election starts making financial sense, and what Florida-specific factors (no state income tax changes some of the usual math other states use) matter in our S-corp vs. LLC comparison for Florida business owners.
The practical takeaway: if your side income has grown into an actual business with its own EIN, its own bank account, or an entity election on file with the IRS, don't apply the personal filing thresholds from this article to the business itself. The business likely has its own filing obligations that exist independent of profit level, layered on top of — not instead of — your personal filing requirement.
A few misunderstandings show up often enough in our office that they're worth addressing directly, even where they overlap with points made earlier.
"I got a 1099 for under $600, so I don't have to report it." The $600 figure is the threshold that requires a payer to issue you a Form 1099-NEC or 1099-MISC — it has nothing to do with whether you're required to report and pay tax on the income. If your total net self-employment earnings for the year hit $400 across all sources combined, you're required to file, regardless of whether any single payer's 1099 individually cleared $600, and regardless of whether a 1099 was issued at all.
"My income was low, so I definitely don't owe anything, so there's no point filing." Owing nothing and being owed a refund are opposite outcomes that both happen at low income levels. Low income is precisely the range where refundable credits like the EITC pay out the most relative to income, and where withholding is most likely to exceed actual tax liability. "I probably don't owe" is not the same conclusion as "I probably shouldn't file."
"I'm a full-time student, so I don't have to file." Student status isn't a filing exemption. If a student's income — earned, unearned, or both — crosses the applicable threshold (either the standard adult thresholds if they're not claimed as a dependent, or the lower dependent thresholds if they are), a return is required regardless of enrollment status. Scholarship and fellowship income used for anything other than qualified tuition and required fees (room, board, travel) is also taxable and counts toward these thresholds — a detail that surprises a lot of students and parents.
"I'm retired, so filing rules don't really apply to me anymore." Retirement doesn't exempt anyone from the filing thresholds — it changes which income sources you're testing against them. Pension income, traditional IRA and 401(k) distributions, required minimum distributions, and the taxable portion of Social Security all count toward gross income for the threshold test. We regularly see retirees who assume "fixed income" means "under the radar," only to find that a required minimum distribution or a decent-sized pension pushes them over the age-65 threshold.
"Married filing separately protects me from having to file if my income is low." As covered earlier, the MFS threshold is $5, not a scaled-down version of the single or joint thresholds. Choosing MFS as a way to avoid filing backfires — it's actually the status with essentially no income cushion at all.
"If I don't file and don't owe anything, there's no penalty, so it doesn't matter either way." True in the narrow sense that a failure-to-file penalty is calculated as a percentage of unpaid tax, so zero tax owed means zero dollar penalty — but this reasoning only holds if you've correctly determined you actually owed nothing, which requires knowing your self-employment tax exposure, any Marketplace reconciliation, and any dependent kiddie-tax exposure, not just your income tax liability. People who assume "no penalty either way" often haven't checked the self-employment tax and 1095-A angles covered earlier in this article, where a filing requirement can exist independent of income tax owed.
"Filing electronically means the IRS already has all my information, so paper-thin returns are fine." Free e-filing and simple software don't change what you're required to report — they just change how the same information gets transmitted. A simple-looking return can still miss a 1099-K, a Marketplace reconciliation, or a dependent's investment income if the person preparing it doesn't know to look for it.
If you've read this far and you're still not sure which of these categories you fall into, that uncertainty is itself useful information — it usually means your situation has more than one moving part, which is exactly the kind of return worth a second set of eyes before you either skip filing you shouldn't have, or file incorrectly and create a problem that's more expensive to fix later than it would have been to get right the first time.
How much do you have to make to file taxes in 2025?
For tax year 2025, a single filer under 65 must file at $15,750 or more in gross income; married filing jointly (both under 65) at $31,500; head of household at $23,625; married filing separately at just $5. These are IRS Publication 501 thresholds and don't include separate rules like the $400 self-employment threshold or dependent filing requirements, which apply regardless of these numbers.
Do I have to file taxes if I made less than $5,000?
Not under the standard income thresholds for most filing statuses, but two exceptions apply regardless of how low your income is: if you had $400 or more in net self-employment earnings, or if you're a dependent with unearned income over $1,350 for 2025. Otherwise, filing below $5,000 is usually optional, though withholding refunds or refundable credits can still make it worthwhile.
What is the minimum income to file taxes for a single person?
For 2025, a single filer under 65 must file at $15,750 or more in gross income; a single filer 65 or older must file at $17,750 or more. Gross income includes wages, self-employment profit, interest, dividends, and most other taxable income before deductions, but generally excludes untaxed Social Security benefits.
Do I have to file taxes if I only made $400 from a side job?
Yes. Net self-employment earnings of $400 or more trigger a mandatory filing requirement and self-employment tax liability, regardless of your total income or filing status. This applies whether the $400 came from gig driving, freelancing, a side business, or cash work, and applies even if no 1099 was issued for that income.
What happens if I don't file taxes but didn't owe anything?
If your income was genuinely under the filing threshold and you had no self-employment income over $400, no Marketplace advance premium tax credits, and no other filing trigger, there's typically no penalty or consequence — but you also permanently forfeit any withholding refund or refundable credit you were owed after three years from the original due date.
Do I need to file taxes if I'm a dependent?
A dependent must file if unearned income exceeds $1,350, earned income exceeds $15,750, or combined gross income exceeds the larger of $1,350 or earned income (up to $15,300) plus $450, for 2025. These thresholds are lower than the standard adult thresholds and apply separately from whether a parent can still claim the dependent.
Does Florida have a state income tax filing requirement?
No. Florida has no state individual income tax, so Florida residents have no separate state filing threshold or state return for wages, self-employment income, retirement distributions, or investment income. Florida residents who earn income in, or move to or from, a state with an income tax should still check that state's specific filing threshold separately.
Do I have to file taxes if I had a Marketplace health insurance plan?
If you or anyone in your household received advance payments of the premium tax credit for a Health Insurance Marketplace plan, you're required to file a federal return and attach Form 8962 to reconcile the credit, even if your income is otherwise below the standard filing threshold for your status and age.
What's the filing threshold for someone 65 or older?
For 2025, single filers 65 or older must file at $17,750 or more in gross income; married filing jointly with one spouse 65+ at $33,100; both spouses 65+ at $34,700; head of household 65+ at $25,625. Age 65 is determined based on being born before January 2, 1961 for the 2025 tax year.
How much can a dependent child earn before they have to file taxes?
For 2025, a dependent child under 65 must file if earned income (wages, self-employment, taxable scholarships) exceeds $15,750, or if unearned income (interest, dividends, capital gains) exceeds $1,350. A mix of both income types uses a separate combined gross income test based on the larger of $1,350 or earned income plus $450.
Is Uber and DoorDash income taxable if I made less than $600?
Yes. The $600 figure is the threshold that requires a payment platform to issue you a Form 1099-NEC or 1099-K — it is not a threshold for whether you must report the income. If your net self-employment earnings across all gig platforms combined reach $400, you're required to file and pay self-employment tax, regardless of whether any single platform issued a form.
Should I file taxes even if I don't have to, to get a refund?
Often yes. If federal income tax was withheld from any paycheck, pension, or unemployment payment during the year, that money isn't refunded automatically — you must file to claim it. Low earners with children are also frequently eligible for refundable credits like the Earned Income Tax Credit, which can generate a payment larger than anything withheld.
Do new immigrants and green card holders use the same filing thresholds?
Not necessarily. Filing thresholds depend on tax residency status, which is determined separately from immigration status using the green card test or substantial presence test. Nonresident aliens generally file Form 1040-NR under different rules, and first-year residents often face a dual-status year with different thresholds for the resident and nonresident portions of the year.
How many years back can I claim a missed tax refund?
The IRS generally allows three years from a return's original due date to file and claim a refund, including withholding refunds and refundable credits. After that window closes, any unclaimed refund becomes the permanent property of the U.S. Treasury and cannot be recovered, even by filing a late return afterward.
Evgeniya Sheldon, E.A. is a federally authorized Enrolled Agent admitted to practice before the Internal Revenue Service and the founder of Omega Tax Group in Jacksonville, Florida. Originally from Maykop, Republic of Adygea, she first came to the United States in 2009 and made it her permanent home in 2014. With a Master's degree in Economics and more than 15 years across accounting, taxation, and financial consulting — practicing U.S. tax since 2010 — she combines an international perspective with deep technical command of the U.S. tax system, serving individuals, entrepreneurs, investors, and international taxpayers in English, Russian, and Ukrainian.
IRS – Check if you need to file a tax return · IRS Publication 501 (2025), Dependents, Standard Deduction, and Filing Information · IRS – 2026 tax inflation adjustments including One Big Beautiful Bill amendments · IRS – How to update withholding to account for tax law changes for 2025 · IRS Topic no. 554, Self-employment tax · IRS – Premium Tax Credit (PTC) overview · IRS – Gig Economy Tax Center · IRS – Time you can claim a credit or refund
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