Form 3520 Penalties: What Happens If You Miss the Foreign Gift Reporting Deadline

The Overlooked Reporting Obligation

Every year, thousands of U.S. taxpayers receive money from foreign relatives — a wire transfer from parents abroad, an inheritance from a foreign estate, a gift from a relative in another country. Most of them have no idea they may be required to file Form 3520.

Form 3520 is an information return that reports certain transactions with foreign trusts and receipts of large gifts from foreign persons. Part IV specifically covers foreign gifts and bequests under §6039F. It is not a tax return — no tax is owed on the gift itself (assuming it is a true gift from an individual). But the failure to file carries significant penalties.

Who Must File Form 3520, Part IV?

A U.S. person must report foreign gifts under §6039F if they receive:

• Gifts from foreign individuals or foreign estates totaling more than $100,000 during the tax year
• Gifts from foreign corporations or foreign partnerships totaling more than the indexed threshold (approximately $19,570 for 2024 — updated annually per IRS Rev. Proc.)

The $100,000 threshold catches more taxpayers than expected. A foreign parent who wires $120,000 to help with a home purchase triggers the filing requirement. Multiple smaller gifts from the same foreign individual are aggregated for purposes of the threshold.

The Penalty: 5% Per Month, Minimum $10,000

Under §6039F(d), the penalty for failing to file Form 3520 is:

• 5% of the amount of the foreign gift for each month the failure continues
• Maximum penalty: 25% of the gift amount
• Minimum penalty: $10,000 per violation

For a $200,000 foreign gift, the maximum penalty exposure is $50,000. For a $500,000 inheritance, it is $125,000. These are information return penalties — they apply regardless of whether any income tax is owed.

There is a reasonable cause exception: penalties may be abated if the taxpayer can demonstrate reasonable cause and lack of willful neglect. A reasonable cause statement must be attached to the Form 3520.

The Statute of Limitations Trap

If Form 3520 is not filed or is filed incompletely, the statute of limitations on the entire tax return does not begin to run.

Under §6501(c)(8), the limitations period is suspended until the required information return is filed. This means the IRS can examine the entire return — including all unrelated items — indefinitely. For a client with a large foreign gift who never filed Form 3520, every tax year's return is potentially open.

Gifts from Foreign Corporations: A Different Analysis

When a client receives money from a foreign corporation or partnership, practitioners must be careful. These transfers are generally not excludable as gifts under U.S. tax law.

§102(c) provides that the gift exclusion does not apply to transfers from employers. If a client is a shareholder of a foreign corporation that transfers money to them, the transfer is likely treated as a dividend under §301 — taxable as ordinary income. If the client is an employee, it may be compensation. If the corporation is a CFC, additional Subpart F or GILTI analysis may be required.

The §6039F reporting obligation still applies — the threshold is exceeded regardless of how the transfer is characterized — but the income tax analysis is a separate question that must be addressed before filing.

Filing Deadline and Mechanics

Form 3520 is filed with the taxpayer's federal income tax return by April 15 (June 15 for taxpayers living abroad; October 15 with extension).

The form requires donor name, address, country, date and amount of each gift, and certification that the amount represents a bona fide gift.

For practitioners, building a foreign gift screening question into the intake process is the most reliable way to catch these situations before the filing deadline.

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TaxPalette's Form 3520 Foreign Gift Analyzer walks through the §6039F threshold analysis, flags corporate transfer issues, and calculates penalty exposure under §6039F. Available to Pro subscribers.