Late Filing Form 3520 for a Foreign Cash Gift: What U.S. Taxpayers Need to Know

Receiving money from parents or other family members outside the United States is common. The money may be used for a home purchase, tuition, living expenses, an investment, or general family support.

In many cases, a genuine foreign cash gift is not taxable income to the recipient. However, a U.S. person who receives a sufficiently large gift from a foreign person may be required to report it to the IRS on Form 3520, Annual Return To Report Transactions With Foreign Trusts and Receipt of Certain Foreign Gifts.

The reporting requirement is easy to miss because:

• The gift may not create any U.S. income tax;
• The foreign donor may have no U.S. filing obligation;
• The money may have been transferred directly into a U.S. bank account; and
• Form 3520 is filed separately from the recipient’s regular income tax return.

Unfortunately, a late Form 3520 can carry a penalty of up to 25% of the unreported foreign gift, even when the recipient owes no income tax on the money.

Is a foreign cash gift taxable?

A genuine gift from a foreign person is generally not included in the U.S. recipient’s gross income merely because the money was received.

Form 3520 is primarily an information return. It tells the IRS:

• Who received the gift;
• The amount and date of the gift;
• The type of property received;
• The donor’s foreign status; and
• Certain information about the donor.

The fact that the gift is generally not income does not eliminate the reporting requirement. A taxpayer may owe no income tax but still face a significant penalty for failing to file Form 3520.

Special rules may apply when the donor is a former U.S. citizen or long-term green card holder who is classified as a covered expatriate. Gifts from covered expatriates may be subject to Section 2801 tax and Form 708 reporting rather than being treated as an ordinary tax-free foreign gift.

Who is required to report the gift?

Form 3520 applies when the recipient is a U.S. person.

For this purpose, a U.S. person generally includes:

• A U.S. citizen;
• A U.S. resident alien for tax purposes;
• A domestic partnership;
• A domestic corporation;
• A domestic estate; or
• A domestic trust.

A nonresident alien is generally not a U.S. person for this reporting requirement. Visa classification alone does not determine the result. For example, an F-1, H-1B, L-1, or other visa holder’s Form 3520 obligation may depend on whether that person was a U.S. resident for federal tax purposes when the gift was received.

What is the $100,000 reporting threshold?

A U.S. person generally must file Form 3520 Part IV when the person receives more than $100,000 during the tax year from:

• A nonresident alien individual; or
• A foreign estate.

The threshold is based on the total amount received during the calendar year, not the amount of each individual wire transfer.

Example 1: Multiple transfers from one parent

A U.S. resident receives four transfers of $30,000 each from a parent living outside the United States.

The total foreign gift is $120,000. Because the annual total exceeds $100,000, Form 3520 is generally required.

Example 2: Gifts from two related parents

A taxpayer receives:

• $70,000 from a nonresident father; and
• $60,000 from a nonresident mother.

The parents are related persons, so the gifts generally must be aggregated. The total is $130,000, and Form 3520 is generally required.

Example 3: Exactly $100,000

A taxpayer receives exactly $100,000 from one nonresident alien individual and receives no other related foreign gifts during the year.

The statutory reporting threshold is more than $100,000. Therefore, the amount-based Part IV filing requirement generally is not triggered solely by that $100,000 gift. The taxpayer should still verify that no additional gifts from related persons must be aggregated.

Related donors must sometimes be combined

A taxpayer cannot necessarily avoid Form 3520 by dividing the gift among family members or intermediaries.

When determining whether the $100,000 threshold has been exceeded, gifts must be aggregated when the recipient knows or has reason to know that:

• The foreign donors are related to each other; or
• One donor is acting as a nominee or intermediary for another person.

For example, money transferred by a parent through a sibling, relative, family company, or family friend may still be treated as coming from the actual donor, depending on the facts.

What if the money came from a foreign company?

The $100,000 threshold discussed above applies to gifts from nonresident alien individuals and foreign estates.

Gifts from:

• Foreign corporations;
• Foreign partnerships; or
• Persons related to those entities

are subject to a much lower inflation-adjusted annual threshold. The IRS may also recharacterize a purported gift from a foreign corporation or partnership based on its actual economic substance.

Therefore, a transfer from a parent’s foreign company should not automatically be reported as a personal gift from the parent. The legal source of the payment, the company’s books, the donor’s ownership, and the reason for the transfer should be reviewed.

What qualifies as a genuine gift?

Calling a bank transfer a “gift” does not by itself establish that the transaction is a gift for U.S. tax purposes.

The facts should support that:

• The donor transferred the money voluntarily;
• The recipient was not required to repay it;
• The payment was not compensation for services;
• The recipient did not provide stock, property, or another economic benefit in exchange;
• The payment was not a business distribution; and
• The transfer did not come from a foreign trust.

A loan, salary payment, business distribution, trust distribution, or repayment of money may have very different tax and reporting consequences.

A distribution from a foreign trust is generally reported in Part III of Form 3520, not as a foreign gift in Part IV.

Does it matter whether the gift was wired into a U.S. account?

The reporting analysis generally focuses on:

• The recipient’s U.S. tax status;
• The donor’s foreign status;
• The true character of the transaction; and
• The total amount received during the year.

Depositing the money directly into a U.S. bank account does not, by itself, eliminate Form 3520 reporting.

Similarly, receiving the gift in a foreign bank account does not avoid Form 3520 if the recipient was a U.S. person and the applicable threshold was exceeded.

If the recipient owned or controlled a foreign account, separate reporting may also be required on the FBAR or Form 8938. Form 3520 does not replace those filings.

Are tuition and medical payments treated differently?

A direct payment of qualifying tuition to an educational institution, or qualifying medical expenses directly to a medical provider, is generally excluded from the IRS definition of a foreign gift for this purpose.

However, the result may be different when the foreign parent first transfers cash to the student or patient and that person later pays the school or medical provider.

The method of payment, identity of the recipient, and use of the funds should therefore be documented carefully.

When is Form 3520 due?

For a calendar-year individual, Form 3520 is generally due on April 15 following the year in which the gift was received.

A U.S. citizen or resident who qualifies as living and working outside the United States may generally have until June 15, but must include the required statement establishing eligibility for that later deadline.

When the taxpayer obtains a valid extension for the income tax return, Form 3520 may generally be extended to October 15. The taxpayer should check Box 1k of Form 3520 and enter the applicable income tax return form number.

Form 3520 cannot generally be extended beyond October 15 for a calendar-year taxpayer, even when an overseas taxpayer receives a discretionary extension for the income tax return until December 15.

For example, a calendar-year taxpayer who received a reportable foreign cash gift during 2025 generally had to file the 2025 Form 3520 by:

• April 15, 2026;
• June 15, 2026, if the taxpayer qualified for the overseas deadline; or
• October 15, 2026, if a valid extension applied.

Is Form 3520 attached to Form 1040?

No. Form 3520 is generally filed separately from Form 1040.

The IRS currently instructs taxpayers to mail Form 3520 to:

Internal Revenue Service Center P.O. Box 409101 Ogden, UT 84409

Because IRS filing addresses and procedures can change, taxpayers should confirm the current Form 3520 instructions immediately before mailing.

What is the penalty for filing late?

For failure to timely report a foreign gift under Section 6039F, the potential penalty is:

5% of the unreported gift for each month or part of a month the failure continues, up to a maximum of 25%.

For example, assume a taxpayer received a reportable foreign cash gift of $300,000 and filed Form 3520 more than five months late.

The potential maximum penalty would be:

$300,000 × 25% = $75,000

This penalty is based on the amount of the gift—not the amount of unpaid income tax. Therefore, a taxpayer may face a substantial penalty even when the gift itself was not taxable.

Does every late Form 3520 automatically result in a penalty?

Not necessarily.

The law provides that no Section 6039F penalty should be imposed when the taxpayer demonstrates that the failure was due to:

• Reasonable cause; and
• Not willful neglect.

However, reasonable cause is not automatic merely because:

• The taxpayer did not know about Form 3520;
• It was the taxpayer’s first mistake;
• No tax was due;
• The donor was a parent;
• A tax preparer failed to ask about foreign gifts; or
• The taxpayer voluntarily filed before receiving an IRS notice.

The IRS evaluates reasonable cause based on all relevant facts and circumstances. The taxpayer generally must show that ordinary business care and prudence were exercised but the taxpayer was nevertheless unable to comply on time.

What changed in the IRS late-filing process?

Under the IRS’s current delinquent international information-return procedures, a taxpayer who:

• Is not under an IRS civil examination;
• Is not under a criminal investigation; and
• Has not already been contacted by the IRS about the missing return

should generally file the delinquent Form 3520 through the normal Form 3520 filing process.

The taxpayer may attach a reasonable-cause statement. For Forms 3520 and 3520-A, the IRS currently states that the reasonable-cause statement will be considered before a penalty is assessed.

When a reasonable-cause statement is attached, the taxpayer should write the following at the top of the first page of Form 3520:

Reasonable Cause Statement attached

This procedural change does not guarantee penalty relief. The IRS may still determine that reasonable cause has not been established and assess a penalty.

How should a late Form 3520 be filed?

A typical late foreign-cash-gift filing involves the following steps.

1. Confirm that Form 3520 was actually required

Before filing, determine:

• Whether the recipient was a U.S. person when the money was received;
• Whether the donor was a nonresident alien or foreign estate;
• Whether related gifts must be aggregated;
• Whether the total exceeded $100,000;
• Whether the payment was truly a gift; and
• Whether the funds came directly or indirectly from a foreign trust, company, or partnership.

2. Use the Form 3520 applicable to the gift year

A gift received in 2024 should be reported on the Form 3520 applicable to 2024, while a gift received in 2025 should be reported for 2025.

Each delinquent year generally requires its own Form 3520.

3. Complete the identifying information and Part IV

For a cash gift from a nonresident alien individual or foreign estate, the taxpayer generally completes the identifying information and Part IV, including Line 54.

When the annual aggregate exceeds $100,000, the IRS generally requires details for individual gifts or bequests exceeding $5,000. If none of the individual transfers exceeded $5,000, the instructions provide a special notation instead of requiring each small transfer to be listed separately.

4. Prepare a detailed reasonable-cause statement

The statement should be individualized and supported by the taxpayer’s actual records.

It will commonly address:

• The taxpayer’s immigration, education, and tax background;
• The taxpayer’s U.S. tax status when the gift was received;
• The donor’s identity, country, and relationship to the taxpayer;
• The date and amount of each transfer;
• The reason for the gift;
• The source of the donor’s funds;
• How the money was transferred and used;
• What the taxpayer understood about U.S. gift reporting;
• Whether a professional prepared the original tax return;
• What information was provided to the preparer;
• How and when the taxpayer discovered the filing requirement;
• How quickly the taxpayer acted after discovering the problem;
• The taxpayer’s prior compliance history; and
• Why the failure was not the result of willful neglect.

Reasonable cause is determined case by case. The timing of the correction, the taxpayer’s knowledge and experience, prior compliance, efforts to determine the filing obligation, and circumstances outside the taxpayer’s control may all be relevant.

5. Write the required notation on the form

Write:

Reasonable Cause Statement attached

at the top of the first page of the delinquent Form 3520.

6. Sign and mail the complete filing

Form 3520 must be signed. Only a complete return, including required attachments, is treated as properly filed.

The taxpayer should use a mailing method that provides tracking and proof of delivery and should retain a complete copy of everything submitted.

7. Be prepared to respond to IRS correspondence

Even when a reasonable-cause statement is attached, the IRS may request additional information or issue a penalty notice.

The taxpayer may need to resubmit the reasonable-cause explanation, provide supporting documents, request penalty abatement, or pursue an administrative appeal. The original filing should therefore be prepared with the expectation that the facts may later be reviewed.

What records should be retained?

A taxpayer should generally retain:

• Foreign and U.S. bank statements;
• Wire-transfer confirmations;
• Deposit records;
• A written gift letter or donor declaration;
• The donor’s full name, address, and country;
• Documentation of the relationship between donor and recipient;
• Evidence of the donor’s foreign status;
• Documents supporting the source of funds;
• Records showing the purpose and use of the gift;
• Currency-conversion calculations, when applicable;
• Copies of the original income tax return;
• The completed Form 3520;
• The reasonable-cause statement; and
• Proof of mailing and delivery.

A formal gift agreement is not always legally required, but clear documentation can help establish that the transfer was a genuine gift rather than income, a loan, a business payment, or a trust distribution.

Does the taxpayer need to amend Form 1040?

Not always.

When:

• The money was a genuine tax-free gift;
• No taxable income was omitted;
• The original Form 1040 was otherwise correct; and
• The only error was failure to file Form 3520,

the taxpayer may generally file the delinquent Form 3520 separately without automatically amending Form 1040. The IRS specifically instructs delinquent Forms 3520 and 3520-A to be filed according to their own filing instructions.

However, additional corrections may be required when:

• The gifted funds were held in a foreign account;
• The account generated unreported interest or investment income;
• An FBAR was required;
• Form 8938 was required;
• The payment actually came from a foreign trust;
• The purported gift was compensation or business income; or
• Other foreign assets or entities were not reported.

Common mistakes when filing a late Form 3520

Common problems include:

• Assuming that a foreign gift is not reportable because it is not taxable;
• Counting each wire separately instead of aggregating the annual gifts;
• Failing to combine gifts from related donors;
• Reporting a foreign company payment as a parental gift without reviewing the company records;
• Treating a foreign trust distribution as a Part IV gift;
• Filing the current-year form for the wrong tax year;
• Attaching Form 3520 to Form 1040 instead of mailing it separately;
• Filing the form without a reasonable-cause statement;
• Using a generic internet template that does not match the taxpayer’s facts;
• Writing only “I did not know” without explaining the surrounding circumstances;
• Blaming the tax preparer without explaining what information was provided;
• Omitting facts that may appear unfavorable;
• Waiting months after discovering the problem before correcting it;
• Failing to write “Reasonable Cause Statement attached” on the first page; or
• Failing to retain proof that the IRS received the filing.

Should the taxpayer wait until the IRS sends a notice?

Generally, waiting increases risk.

The IRS’s delinquent international information-return procedures are specifically directed at taxpayers who identify the missing return before being contacted by the IRS.

Filing voluntarily does not guarantee penalty relief, but correcting the filing promptly may help demonstrate that the taxpayer acted responsibly after discovering the requirement. Once the IRS has already contacted the taxpayer, the available procedures and reasonable-cause analysis may become more complicated.

Final thoughts

A foreign cash gift can be tax-free and still create a major U.S. reporting obligation.

For a late Form 3520, the most important questions are:

1. Was the recipient a U.S. person when the gift was received?
2. Was the donor truly a foreign individual or foreign estate?
3. Did the annual aggregate exceed $100,000?
4. Were related donors or intermediaries involved?
5. Was the payment genuinely a gift?
6. Are other forms, such as an FBAR or Form 8938, also required?
7. Do the facts support a credible reasonable-cause explanation?

A late Form 3520 should not be treated as merely filling in a missing form. The classification of the payment, supporting records, filing procedure, and reasonable-cause narrative can directly affect whether the taxpayer faces a penalty of up to 25% of the gift.