What is the late filing penalty for Form 3520-A?

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Answer

The annual information return of a foreign trust with a US owner, reporting the trust's income, distributions and US beneficiaries. The exposure on this kind of filing is charged by reference to the form and the delay rather than to the tax, which is why an unfiled year with no tax can still be expensive.

What a late filing costs

The annual information return of a foreign trust with a US owner, reporting the trust's income, distributions and US beneficiaries.

The team reviewing a file together at a desk

Where it does not apply

The filing duty sits on the trust but the exposure sits on the US owner, and many ordinary foreign structures — a family settlement, certain retirement and education arrangements abroad — turn out to be trusts for US purposes even though nobody involved ever used that word.

What is the late filing penalty for Form 3520-A?
ItemAmount
Current account, highest balanceUS$8,000
Savings account, highest balanceUS$3,000
Account held with a relative, signature authority onlyUS$6,000
Aggregate tested against the thresholdUS$17,000
Reporting threshold (verified, FinCEN)US$10,000

The aggregate of US$17,000 exceeds the US$10,000 threshold, so all three accounts are reported — including the one that is not the filer's money, because signature authority counts.

Treat these numbers as a worked example rather than advice — they exist to make the mechanics visible, and the rates and thresholds are assumed for the illustration. For a real filing, we verify each figure with the authority that publishes it, for your year.

How to get this moving

The full treatment — who it binds, the deadline, the penalty and the fixed fee — is on 3520-A — foreign trust annual return. The quote comes before the work, in writing.

Reviewed against current guidance for the 2025 and 2026 filing seasons by Udit Gupta, Cross-Border Tax Expert, Legal Quotient Consultants. General information, not advice for your circumstances — call our 24-hour helpline to discuss your own position.

Where penalty for not declaring foreign bank account comes into this file

Most readers of this page are looking for penalty for not declaring foreign bank account. What follows sets out how it works for Form 3520-A: who is caught by it, what has to be filed, and what the work costs, agreed before it begins.

Files that look like this one

Case study 1

A family settlement abroad identified as a reportable trust

The client had inherited an interest in an arrangement their family had always called a settlement and never a trust. We read the deed and the later amendments rather than the family's description of it, and established that for US purposes it was a trust with a US owner, and from what date. The engagement produced a written ownership analysis with the clauses it rested on, and the returns for the years that analysis identified. The analysis is the part that gets re-used, because every later year's filing depends on the same reading.

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Case study 2

An overseas education plan tested against the foreign trust rules

A client had been contributing to an education arrangement in their home country and had never considered it a trust. The provider's literature described a savings product. The governing rules described a trustee holding assets for named beneficiaries. We worked from the rules, concluded that the arrangement fell inside the foreign trust reporting regime for the years contributions had been made, and identified who the US owner was. The engagement produced that determination in writing and the returns that followed from it, together with the contribution history those returns needed.

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Case study 3

Returns prepared where the trustee would not co-operate

The trustee abroad declined to prepare anything and answered correspondence slowly. Because the exposure sits with the US owner regardless, we built the return from what could be obtained: the deed, the trust accounts for the years available, bank records for the trust's holdings, and a written log of every request made to the trustee and the response to it. The engagement produced the filings, the supporting schedules assembled from those sources, and the correspondence log, which is the evidence of effort if the completeness of the return is ever questioned.

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Case study 4

Distributions to US beneficiaries reconstructed from the trust accounts

The return needed the distributions and the identity of the US beneficiaries who received them, and the trust's bookkeeping recorded payments without saying who the recipients were. We traced each payment through the trust's bank records to a named beneficiary, separated payments to beneficiaries outside the United States, and set the results against the trust's income for each year. The engagement produced the distribution schedules the returns required and a working paper tying every line to a bank entry, so the figures can be traced without repeating the exercise.

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Case study 5

A dormant trust with no income still brought up to date

The trust held one property abroad, made no distributions and generated almost nothing. The client's view was that there was nothing to report. Because these are information returns, the quiet years were exactly the years missing. We prepared them and separately documented the absence of income and of any tax deferred by the delay. The engagement produced a return for each year with a US owner and a note explaining the trust's inactivity, which is what turns a long silence into an explainable one rather than an unexplained gap.

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Case study 6

A timeline of ownership fixed how many years were due

The client assumed that every year since the trust was created needed a return. The deed and two later amendments told a different story: the US ownership test was met for part of that period only, beginning when the client became a US person and ending when the trust's terms changed. We set that out as a dated timeline before preparing anything. The engagement produced the timeline, the returns for the years inside it, and a written explanation of why the earlier and later years carried no filing obligation.

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Case study 7

A Family Trust Abroad With Reporting on Both Sides

A trust settled in one country and a beneficiary living in another produces reporting for the trust, the settlor and the beneficiary, on different forms and different dates. The engagement maps who files what before anything is prepared.

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Case study 8

A Non-Resident Estate Holding US Assets

US situs assets sit inside the US estate tax net regardless of where the owner lived, and the exemption available to a non-resident is not the resident one. The file establishes situs asset by asset before any relief is claimed.

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Form 3520-A: further questions

What if my foreign trust has never filed a 3520-A?

The return belongs to the trust, but the consequence lands on the US owner, so a trust that has never filed is your problem rather than the trustee's. Exposure on this kind of filing is charged by reference to the form and the delay rather than to the tax, so years in which the trust distributed nothing and earned little are still years with a missing return. The first step is establishing for which years there was a US owner at all, because that is what fixes how many returns are in question.

The trustee abroad will not file, am I still exposed?

Yes. The duty to file sits with the trust and the exposure sits with you as the US owner, which is an uncomfortable combination when the trustee is in another country and sees no reason to act. It does not shift the risk back to them. What it changes is your evidence: you need to show what you asked the trustee for, what you received and what you did with it. Where the trust's records are incomplete, the position taken on the return should be set out in writing and kept with the papers supporting it.

Is my foreign pension or savings plan a trust for US purposes?

It might be, and that is the question to settle before worrying about exposure. Many ordinary arrangements abroad, including family settlements and certain retirement and education plans, are trusts for US purposes even though nobody involved has ever used the word. The answer comes from the deed and the governing rules, not from what the product is called locally or how the provider describes it. Getting this wrong in either direction is expensive: an unnecessary filing is work wasted, and a missed one accrues a delay you cannot undo later.

Does the penalty apply if the trust had no income?

It can. This is an information return about the trust's affairs, so the exposure attaches to the missing return and the delay rather than to tax owing. A trust holding one quiet asset and making no distributions still reports. The absence of income, and of any tax advantage gained from the delay, is relevant to how the delay is explained, so it should be documented. But it is an argument about the exposure, not a reason the return was not required in the first place.

Who pays the penalty, the trust or me?

The filing duty is the trust's and the exposure follows the US owner, which is why the answer is rarely the trustee. That split also decides who has to gather the information. As the person carrying the consequence, you are the one who needs the trust's income, its distributions and its list of US beneficiaries, whether or not the trustee is helpful about supplying them. Where a trust has more than one US owner, work out each person's position separately rather than assuming a single filing settles it for everybody.

How many years of foreign trust returns do I have to file?

As many as there were years with a US owner, which is a question of fact and often not the obvious answer. Ownership for these purposes can begin when a settlement is made, when someone becomes a US person, or when the terms of a trust change, and it can end as well. So the first piece of work is a timeline of who owned what and when, read from the deed and any amendments. That timeline fixes the scope of the catch-up and is the document any later question starts from.

How would a foreign tax authority know I am resident there?

Mostly from information you or your bank already provided. Account-opening forms ask you to self-certify tax residence, and that certification is reported between authorities under the Common Reporting Standard or, for US accounts, under the FATCA framework. Beyond that: employer and payroll filings, property registries, immigration records and the tax filings of anyone who paid you. The realistic planning assumption is that the data arrives. See FATCA and information reporting.

How do I report foreign income on a Canadian return?

You report foreign income in Canada by type and in Canadian dollars. Foreign employment income, interest, dividends, rent, pension and capital gains each go on the line for that kind of income, converted at the rate for the day of the transaction or an acceptable average, with the gross amount reported and the foreign tax withheld claimed as a credit rather than netted off. Holding foreign property above the cost threshold adds the foreign income verification statement, which is a separate filing. See the T1135.

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