A penalty notice that shows up after you filed on schedule is not evidence that you missed something. In most cases it means the IRS matched your return against the wrong due date. What follows is why that happens to Americans abroad and to nonresident aliens filing Form 1040-NR, what the penalties cost, which deadlines actually govern you, and how an incorrect penalty gets reversed.

Scope: this article covers individuals filing Form 1040 and nonresident aliens filing Form 1040-NR. Both can land on June 15, but for different reasons, and those differences decide how a notice gets answered. For a US citizen or resident abroad, June 15 is a regulatory extension of April 15 under Treasury Regulation 1.6081-5(a)(5). For a nonresident alien with no wages subject to withholding, June 15 is the original statutory due date under section 6072(c). Foreign corporations filing Form 1120-F run on different due dates, a different extension mechanism, and a different interest rule, and they are covered in a companion article, When Is Form 1120-F Due, and Why Does the IRS Keep Saying It Was Late? Partnerships, estates, trusts, exempt organizations, and benefit plans each have their own rules and are outside both.

Last updated: September 9, 2026

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Why does the IRS think my return was due April 15?

Because April 15 is the system default, and most of the rules that override it leave no visible trace on your account. IRS processing systems compare the received date on a return against the due date sitting in the account, and where nothing in the file signals that a different date applies, the return posts as late. The failure-to-file penalty then generates on its own, with no examiner reviewing the account and no one asking whether the deadline was right in the first place.

That is the shape of every scenario below. Each one describes a return that was filed on time under the law, scored as late by a system that never received the fact that would have changed the due date.

What causes a late-filing notice on a return filed on time?

There are more of these than most filers expect, and they are not all foreign-related. The list runs roughly from most to least frequent, and the first one accounts for the large majority of these notices.

• The automatic June 15 deadline for individuals abroad. A US citizen or resident alien whose tax home and abode are both outside the United States and Puerto Rico on April 15 receives an automatic two-month extension to June 15. Nothing is filed to claim it, and that is exactly why it goes unrecognized. The only marker is a statement attached to the return, which does not reach the system that sets the due date.
• The statutory June 15 deadline for nonresident aliens. A nonresident alien who received no wages subject to chapter 24 withholding files Form 1040-NR by June 15 under section 6072(c). That is an original due date, not an extension, so there is no statement and nothing to elect. The account still defaults to April 15, and nothing in it records whether wage withholding applied.
• A disaster postponement that was never applied. Section 7508A lets the IRS disregard up to one year of elapsed time after a federally declared disaster. The relief posts automatically only for taxpayers whose address of record sits inside the covered area, so an affected taxpayer outside it can file within the postponement period and still receive a notice.
• Combat zone or contingency operation service. Section 7508 disregards the period of service, plus any continuous qualified hospitalization, plus the next 180 days. IRS systems generate notices on the standard due date and pick up the service dates later, if at all.
• A mailing the IRS received after the deadline. Section 7502 treats a return as filed on the postmark date, but the protection is narrower than most filers assume. Registered and certified mail is prima facie evidence of delivery. A private courier qualifies only if it is an IRS-designated delivery service using a designated service level, and a foreign postmark carries materially less protection than a US Postal Service one.
• An e-filed return rejected at the deadline. A rejected transmission can still be timely if it is corrected and retransmitted inside the perfection period, generally five calendar days for individual returns and extensions. The retransmission date is what the IRS sometimes records, which is what generates the penalty.
• An extension the IRS never matched. Form 4868 filed on time but posted to the wrong year or the wrong taxpayer identification number leaves the account showing no extension at all.
• A return the IRS never posted. Paper returns are lost or posted to the wrong period. The year then looks unfiled, and in some cases the IRS prepares a substitute for return.
• The weekend and holiday rule. Section 7503 moves a deadline falling on a Saturday, Sunday, or legal holiday to the next business day, and Emancipation Day in the District of Columbia moves the April deadline in some years.

How does IRS disaster relief affect my filing deadline?

Once FEMA declares a disaster and the IRS issues a notice, any covered deadline falling inside the postponement period moves to the last day of that period. Disaster relief is broader than the June 15 extension in one important respect: it postpones payment as well as filing, and it suppresses interest and penalties during the postponement period rather than merely deferring the return.

The gap that generates notices is the definition of who is covered. Treasury Regulation 301.7508A-1(d)(1) treats a taxpayer as affected if the records necessary to meet the deadline are located in the covered disaster area, whether or not the taxpayer is. A taxpayer whose return preparer is inside the area and cannot file may also qualify. None of that is visible to IRS systems, which key the relief to the address of record. Taxpayers in that position must self-identify, and the IRS maintains a disaster hotline at 866-562-5227 for exactly this purpose. Section 7508A(c) also allows the same treatment for qualified state-declared disasters on a governor's written request.

Two practical points follow. A postponement period runs concurrently with any extension already in place rather than stacking on top of it. And where relief was available but never applied, the answer is usually a phone call establishing eligibility, not a written abatement request, because nothing needs to be forgiven; the deadline itself was different.

How much do these penalties cost?

The penalty on the income tax return is usually the smallest piece. If you hold interests in foreign entities or foreign financial assets, the information returns that travel with your Form 1040 carry fixed penalties that have nothing to do with how much tax is at stake:

• Form 5471. Section 6038(b) imposes $10,000 per form, per year, per foreign corporation, plus continuation penalties of up to $50,000 if the failure persists after IRS notice.
• Form 8865. Section 6038(b) imposes $10,000 per form, per year, per foreign partnership, with the same continuation structure of up to $50,000.
• Form 8938. Section 6038D(d) imposes $10,000, escalating to as much as $50,000 for continued failure after notice.
• Failure to file. Section 6651(a)(1) imposes 5% of the unpaid tax for each month the return is late, capped at 25%.

The arithmetic gets ugly quickly. An American abroad who owns two foreign companies and a share of a foreign partnership files two Forms 5471 and a Form 8865, so a single misread due date puts $30,000 on the account before the income tax penalty is even counted. Add a Form 8938 and the figure passes $40,000 on a return that was filed on time. The notice arrives with a payment stub and a 30-day clock, which is why so many taxpayers pay rather than contest.

Those information return penalties are aimed at US citizens and residents. A nonresident alien filing Form 1040-NR is generally outside sections 6038 and 6038D, and outside the FBAR, which reaches United States persons. The exposure that replaces them is quieter and often larger: section 874(a) conditions deductions and credits on filing a true and accurate return, and once the terminal date in Treasury Regulation 1.874-1(b) passes, effectively connected income is taxed on a gross basis. There is no cap on what that costs.

When is my tax return due if I am a US citizen or resident living outside the US?

• June 15, automatically. A US citizen or resident alien whose tax home and abode, in a real and substantial sense, are both outside the United States and Puerto Rico on April 15 receives an automatic two-month extension to June 15 under Treasury Regulation 1.6081-5(a)(5). Both halves of that test matter. Living outside the United States and Puerto Rico is required alongside a main place of business or post of duty outside, so a citizen who works abroad but resides in the United States does not qualify on that basis. A separate category, paragraph (a)(6), covers citizens and residents in military or naval service on duty outside the United States and Puerto Rico, and paragraph (d) requires the assigned tour of duty to cover the entire due date. No request is filed. A statement attached to the return is the only requirement, and it is the document that later proves the deadline.
• October 15, on Form 4868. Form 4868 must be filed by June 15, not April 15, to reach October 15. E-file or mail it; the IRS responds only if it denies the request.
• December 15, by written request only. No form gets you past October 15. A letter to the IRS requesting the additional two months is the only route, and it is discretionary. The IRS rarely issues a formal approval, but the request is generally honored and the correspondence becomes useful evidence if a penalty is later assessed. This is an individual procedure with no corporate equivalent.
• Form 2350, for the foreign earned income exclusion. If more time is needed to satisfy the bona fide residence or physical presence test, Form 2350 extends the return until eligibility can be established. This is a separate track from Form 4868, not a substitute for it.
• FBAR, October 15 in practice. Foreign financial accounts exceeding $10,000 in the aggregate at any point in the year trigger the FBAR, FinCEN Form 114. The stated due date is April 15, but FinCEN has granted the automatic extension to October 15 every year, with nothing to file to claim it, so October 15 is the operative deadline. It goes through the FinCEN BSA E-Filing System rather than with the return.
• Payment, extended to June 15, but interest runs from April 15 either way. Treasury Regulation 1.6081-5(a) grants an extension "for filing returns of income and for paying any tax shown on the return," so if you qualify and attach the statement paragraph (b) requires, you get two extra months to pay tax shown on the return as well as to file it. What that buys is narrower than it sounds. An extension of time to pay stops the failure-to-pay penalty under section 6651(a)(2) from beginning until June 15. It does not stop interest, which accrues from April 15 regardless, because section 6601(b)(1) fixes the last date prescribed for payment without regard to any extension. Form 4868 extends filing only, so nothing postpones payment past June 15.

Key dates at a glance: US citizens and residents abroad

When is Form 1040-NR due for a nonresident alien?

A nonresident alien can also land on June 15, and the date looks identical on a notice, but it comes from a different provision and behaves differently in almost every respect. Section 6072(c) fixes it by statute rather than granting an extension, and Treasury Regulation 1.6081-5 plays no part, because paragraphs (a)(5) and (a)(6) reach United States citizens and residents only. Nothing is elected, no statement is attached, and there is no two-month payment extension to argue about.

• April 15, if you received wages subject to chapter 24 withholding. Section 6072(c) reaches nonresident alien individuals other than those whose wages are subject to withholding under chapter 24. An employee with US wage withholding falls outside it and stays on the general date in section 6072(a), the 15th day of the fourth month. Treasury Regulation 1.6072-1(c) states the same split for individuals. The most common example of chapter 24 withholding is ordinary payroll withholding: you work for a US employer, the employer withholds income tax from each paycheck under section 3402, and the wages show up on a Form W-2. Chapter 24 is the block of the Code that runs sections 3401 through 3406, titled Collection of Income Tax at Source on Wages, so the question is whether your pay fell within that regime, not whether a particular form arrived. A Form W-2 showing zero income tax withheld still reflects wages subject to chapter 24, which puts you on April 15.
• June 15, if you did not. For every other nonresident alien, section 6072(c) sets the date at the 15th day of the sixth month following the close of the tax year, June 15 for a calendar-year filer. Withholding on income reported on Form 1042-S is chapter 3 withholding, not chapter 24, so it does not move you to April 15. A nonresident with scholarship, royalty, rental, partnership, or other reported income and no US wages sits on June 15. A student on optional practical training whose pay runs through an employer's payroll withholding does not.
• October 15 or December 15, on Form 4868. The automatic six-month extension runs from whichever original due date applies to you, so an April 15 filer reaches October 15 and a June 15 filer reaches December 15. Form 4868 has to be filed by that original due date, not by April 15 in every case. Note that this December 15 is not the citizen's December 15. The nonresident's is automatic on a form. The citizen's is discretionary, requires a letter, and comes only after an October 15 extension.
• Payment and interest run from your own due date. Because June 15 is the original due date rather than an extension of April 15, the last date prescribed for payment is June 15 for a filer in that category, and interest runs from there. That is the reverse of the citizen abroad, whose extension to June 15 leaves interest running from April 15, because section 6601(b)(1) fixes the last date prescribed for payment without regard to any extension. Filing Form 4868 extends filing only, so payment is still due on June 15 for a June 15 filer.
• Deductions and credits, on a clock of their own. Section 874(a) allows a nonresident alien the benefit of deductions and credits only where a true and accurate return of effectively connected income is timely filed. Treasury Regulation 1.874-1(b)(1) sets the terminal date at 16 months after the due date under section 6072, and where no return was filed for the immediately preceding year it cuts that short at the date the IRS mails a notice that the return has not been filed. Paragraph (b)(2) allows a waiver where the taxpayer establishes, on the facts and circumstances, that filing as soon as possible after becoming aware of the failure was reasonable. Past the terminal date, effectively connected income is taxed on a gross basis with nothing deducted against it, which routinely costs more than any fixed penalty. The foreign corporation equivalent runs 18 months and is covered in the companion article.
• FBAR and Form 8938 generally do not apply. The FBAR reaches United States persons. The specified individual definition under section 6038D covers citizens, resident aliens, a nonresident alien who elects to be treated as a resident for joint filing under section 6013(g) or (h), and a nonresident alien who is a bona fide resident of Puerto Rico or American Samoa, so most Form 1040-NR filers sit outside both. Making the section 6013(g) or (h) election changes that, and it also moves you off the section 6072(c) due date entirely.

Why these returns get scored late is the same architecture described earlier, applied to a split the account cannot see. The due date sitting in the account defaults to April 15, and nothing in the file records whether wages subject to chapter 24 withholding were received. A nonresident who filed on June 12, exactly on time, looks two months late to a system that never asked the question. The correction is easier in substance than the citizen's, because the answer is statutory rather than factual: cite section 6072(c) and Treasury Regulation 1.6072-1(c), establish that no wages subject to chapter 24 withholding were received for the year, and fix the filing date with the e-file acknowledgment or postmark.

Key dates at a glance: nonresident aliens filing Form 1040-NR

What penalty relief options do taxpayers abroad have?

A notice is an opening position, not a final assessment. Four pathways exist, and more than one often applies to the same account. They are listed strongest first.

• Proof of timely filing. The strongest position available, because it is not a request for leniency. If the return met the correct deadline, you establish the accurate due date and the filing date and ask the IRS to reverse an assessment that should never have posted. That takes two things, and most responses supply only the second. Cite the authority that sets the deadline, whether that is Treasury Regulation 1.6081-5(a)(5) or (a)(6), section 6072(c), section 7508A, or section 7508, and then prove the facts that make it apply. The person reading your response is working from an account that says the return was late, and an assertion that it was timely, unsupported by the provision that makes it so, reads as a disagreement rather than a correction.
• First-Time Abate, now the Automatic Exemption from Penalty. An administrative waiver for taxpayers with a clean compliance history over the prior three years, or twelve consecutive quarters for quarterly filers. It reaches failure-to-file, failure-to-pay, and failure-to-deposit penalties and requires no explanation of why the failure occurred. The IRS is automating this waiver and renaming it the Automatic Exemption from Penalty, applying it during return processing rather than after assessment, with AEP covering eligible original returns beginning with tax year 2025 and 2026 quarterly returns and fully replacing First-Time Abate for returns with original due dates on or after January 1, 2027.
• Reasonable cause. Relief grounded in facts showing ordinary business care and prudence despite the failure. Serious illness, death in the immediate family, inability to obtain records held by a foreign institution, natural disaster, and reliance on a qualified adviser are the recurring grounds in cross-border cases.
• Statutory exceptions. Relief that applies by operation of law in defined circumstances, including certain IRS errors and reliance on written advice furnished by the IRS in response to a specific request.

Some of this relief is now automatic. Under AEP the IRS suppresses covered penalties at processing for eligible taxpayers and sends a notice confirming it, with no request required. That does not extend to everything on this list. Proof of timely filing, reasonable cause, and the statutory exceptions still require you to raise them, and information return penalties under sections 6038, 6038A, and 6038D fall outside AEP as they did outside First-Time Abate. Worth knowing during the transition: an AEP-eligible taxpayer can still receive a penalty notice on a return processed before the automation went live, and a penalty that was wrongly assessed in the first place, on a return that was timely under the correct deadline, should be reversed on that basis rather than absorbed as a waiver, since the waiver is available only once per compliance cycle. The current standards are set out in the IRS guidance on penalty relief and on reasonable cause.

What proof does the IRS want?

For a US citizen or resident abroad, the file needs the statement attached to the return establishing that your tax home and abode were both outside the United States and Puerto Rico on April 15, or that you were on military or naval duty outside, together with the e-file acknowledgment or postmark fixing the filing date. For a nonresident alien on the section 6072(c) date, what establishes the deadline is the absence of wages subject to chapter 24 withholding for the year, so the wage and withholding record is the proof rather than a statement. Where a disaster or combat zone postponement applies, the file needs the FEMA declaration number or the service dates. Account transcripts matter as much as the return itself, since they show the due date the IRS actually used and the transaction code that generated the penalty. Assembling that record into a short, precise response, addressed to the unit that can act on it, is what separates a reversal from a form-letter denial.

Frequently asked questions

Does the June 15 deadline also extend the time to pay?

Yes, but it does not stop interest. Treasury Regulation 1.6081-5(a) grants its extension "for filing returns of income and for paying any tax shown on the return," so the failure-to-pay penalty under section 6651(a)(2) does not begin until June 15. Interest runs from April 15 regardless, because section 6601(b)(1) determines the last date prescribed for payment without regard to any extension. Two limits apply: paragraph (b) conditions the extension on attaching a statement to the return showing which category applies, and it reaches only tax shown on the return. Form 4868 extends filing only, so paying by June 15 is what keeps the failure-to-pay penalty from starting.

Do I have to request the two-month extension to June 15?

No. The extension to June 15 applies automatically to a US citizen or resident alien whose tax home and abode, in a real and substantial sense, are both outside the United States and Puerto Rico on April 15, or who is in military or naval service on duty outside the United States and Puerto Rico. Working abroad alone does not do it; you have to live outside the United States and Puerto Rico as well. Nothing is filed to claim it. Attach a statement to the return describing which condition applies.

I file Form 1040-NR. Is my return due April 15 or June 15?

It turns on wage withholding. Section 6072(c) puts nonresident alien individuals on the 15th day of the sixth month, June 15 for a calendar year, except those whose wages are subject to withholding under chapter 24, who stay on April 15. Treasury Regulation 1.6072-1(c) states the same split. Withholding reported on Form 1042-S is chapter 3 withholding and does not move you to April 15. June 15 here is an original due date rather than an extension, so there is no statement to attach and nothing to elect.

How long is my extension if my Form 1040-NR is due June 15?

Six months, to December 15, on Form 4868 filed by June 15. If your due date is April 15 because you had wages subject to withholding, the same form reaches October 15. This is not the discretionary December 15 available to a citizen abroad, which requires a letter and comes only after an October 15 extension. Either way the extension covers filing, not payment.

Can a late Form 1040-NR cost me my deductions?

Yes, and that is usually the larger exposure. Section 874(a) allows deductions and credits only where a true and accurate return of effectively connected income is timely filed, and Treasury Regulation 1.874-1(b)(1) sets the terminal date at 16 months after the due date under section 6072, cut short at the date the IRS mails a notice of non-filing where the preceding year's return was not filed. Paragraph (b)(2) provides a waiver where the taxpayer establishes on the facts and circumstances that filing as soon as possible after becoming aware of the failure was reasonable. Past that point, effectively connected income is taxed on a gross basis.

I was a nonresident for part of the year and a resident for the rest. Which due date applies?

Dual-status years are where this most often goes wrong, because the answer depends on which form serves as the return and whether you received wages subject to chapter 24 withholding. Residence status on the last day of the year drives which return you file. Neither the section 6072(c) date nor the Treasury Regulation 1.6081-5(a)(5) extension carries over automatically to a dual-status filer, and Treasury Regulation 1.6072-1(c) expressly excludes a nonresident alien treated as a resident under section 6013(g) or (h) from the sixth-month date. Confirm the date against your own facts rather than assuming June 15.

Do I get IRS disaster relief if I do not live in the disaster area?

Possibly. A taxpayer is affected if the records needed to meet the deadline are located in the covered area, or if a preparer inside the area cannot file on their behalf. The relief is not automatic in those cases, so you must self-identify, and the IRS disaster hotline at 866-562-5227 handles that.

How long is the combat zone filing extension?

The period of service in the combat zone or contingency operation, plus any continuous qualified hospitalization from injuries sustained there, plus 180 days, plus the days that remained before the deadline when service began. It covers payment as well as filing, and interest and penalties do not accrue for the disregarded period.

Does mailing my return from abroad on the due date make it timely?

Not reliably. Section 7502 gives the strongest protection to a US Postal Service postmark, with registered or certified mail serving as prima facie evidence of delivery. Foreign postmarks and non-designated couriers carry materially less protection, so e-filing, or a designated delivery service at a designated service level, is the safer route from outside the United States.

My e-filed return was rejected on the deadline. Is it late?

Not if it was corrected and retransmitted inside the perfection period, generally five calendar days for individual returns and for Form 4868. If the rejection cannot be cured electronically, the return can be filed on paper within ten calendar days of the rejection, with the rejection notice and an explanation attached, and it is treated as filed on the date of the original electronic transmission. Keep the rejection acknowledgment and the accepted acknowledgment or the paper filing receipt.

Does an extension of my return also extend the FBAR?

It does not, and it does not need to. FinCEN Form 114 is due April 15 with an automatic extension to October 15 that requires no request. The FBAR is filed through the FinCEN BSA E-Filing System, separate from the income tax return.

Do I qualify for First-Time Abate?

Generally yes if you had no penalties for the three prior tax years, have filed or validly extended all currently required returns, and have paid or arranged to pay any tax due. A prior penalty that was itself abated for reasonable cause does not necessarily disqualify you.

Does the first-time waiver cover a Form 5471 penalty?

Not directly, but it has often reached them indirectly. First-Time Abate never applied to information returns. IRM 20.1.9.3.5 provides that a Form 5471 penalty systemically assessed when the form is attached to a late-filed return may be relieved where the failure-to-file penalty on the underlying return is abated under First-Time Abate, or would have been eligible for it had a penalty been assessed. In practice the IRS has applied the same reasoning to a Form 5471 attached to a late Form 1040, though the IRM does not say so. Whether that derivative relief survives the move to AEP is unresolved, because AEP suppresses the penalty at processing instead of abating it afterward, and the IRS lists information reporting dependent on another filing among the categories ineligible for AEP.

Can a penalty be removed over the phone?

Sometimes, and the rules here have moved more than once. The IRS has shifted its policy on granting first-time relief on a call, restricting it, then allowing it, then restricting it again, and the AEP transition changes it once more by moving covered penalties out of the request process entirely. Account corrections, including a due date the IRS scored wrong, are still frequently resolved on a single call and can post within days. Information return penalties and anything requiring documentary proof need a written response with exhibits. Confirm the current procedure before relying on a call.

What if I already paid the penalty?

Payment does not forfeit the claim. You can request abatement and a refund of the amount paid, subject to the refund limitations in section 6511, generally three years from the date the return was filed or two years from the date of payment, whichever is later.

I am a US citizen abroad who also owns a foreign corporation. Does this article cover the corporation?

No. A foreign corporation filing Form 1120-F runs on its own due dates, and whether it maintains an office or place of business in the United States changes the filing date, the extension mechanism, and the date interest starts. The companion article, When Is Form 1120-F Due, and Why Does the IRS Keep Saying It Was Late?, covers that. Your Form 5471 obligation as a shareholder is a separate matter from the corporation's own return.

Does any of this apply to a partnership, estate, or trust?

The relief pathways do, but the deadlines do not. This article covers individuals filing Form 1040 and Form 1040-NR. Partnerships filing Form 1065, estates and trusts filing Form 1041, foreign trusts and nonresident alien estates that file their own returns, exempt organizations, and benefit plans each have their own original due dates and extension periods, so a wrong-due-date notice on one of those returns has to be tested against its own rules.

Have a notice in hand? Tell us about it.

Deadlines for individuals with cross-border facts are easy to misread, and the IRS misreads them regularly. If a late-filing notice arrived on a return you filed on schedule, if your Form 1040-NR was measured against April 15 when section 6072(c) gave you June 15, if a postponed deadline was never applied to your account, or if a foreign reporting obligation is still open, the correct due date can be confirmed, the proof assembled, and the response prepared. Notices carry response deadlines, so the earlier the notice is reviewed, the more paths remain available. If the notice is addressed to a foreign corporation rather than to you personally, start with the companion article on Form 1120-F deadlines instead.

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This article is provided for general informational and marketing purposes only and does not constitute legal, tax, or accounting advice. Statutes, regulations, deadlines, and penalty amounts change, and outcomes depend on the specific facts of each matter. Do not act or refrain from acting on the basis of this content without advice from a qualified professional. Reading this article or contacting the author does not create a client relationship.