What is the late filing penalty for Form 3520?

  • 15+Years of cross-border experience
  • 18,000+Clients served
  • 5.0Google rating
  • 4Global offices — India, USA, Canada & UAE
  • 15+ years of cross-border experience
  • Google rating 5.0 out of 5
  • Fixed fee agreed before work starts
Answer

Reports transactions with foreign trusts and the receipt of large gifts or bequests from foreign persons. 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

Reports transactions with foreign trusts and the receipt of large gifts or bequests from foreign persons.

The team at work in the open-plan office

Where the general answer is wrong

A gift from abroad is generally not taxable income to the recipient — and that is exactly why the reporting is missed. The obligation is informational, the penalty is computed on the unreported amount, and a family transfer nobody thought of as a tax event becomes an expensive one.

What is the late filing penalty for Form 3520?
ItemAmount
Current account, highest balanceUS$9,000
Savings account, highest balanceUS$5,000
Account held with a relative, signature authority onlyUS$2,000
Aggregate tested against the thresholdUS$16,000
Reporting threshold (verified, FinCEN)US$10,000

The aggregate of US$16,000 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.

An illustration, not a client file. The sums are chosen for legibility and the thresholds are stated for the example alone — nothing reaches a filing until it has been confirmed at source for your own year.

Where to go from here

The full treatment — who it binds, the deadline, the penalty and the fixed fee — is on 3520 — foreign gifts & trusts. One call is usually enough to know whether this is a filing or a project.

Read and approved for the 2025 and 2026 filing seasons by Udit Gupta, Cross-Border Tax Expert, Legal Quotient Consultants. This is general information rather than advice about your file — a short call is the way to get the second.

Penalty for not declaring foreign bank account, in practice

Readers arrive here searching for penalty for not declaring foreign bank account, and Form 3520 is what the page is about. Below: who it catches, what has to be filed, and what it costs — quoted in writing, before anything is done.

Cross-border tax case studies

Case study 1

A deposit the lender asked about and the return had not

The client learned of the obligation from a mortgage adviser who asked where the deposit had come from. It had come from parents abroad, across two years, and nothing had been reported because nobody had treated it as income. The work was establishing what arrived in which year, obtaining confirmations from the family that the transfers were gifts rather than loans or fees, and filing the missing information returns with a written account of how the omission happened. The engagement produced a complete set of filings for the affected years and a documented position on the record.

Read how this one runs
Case study 2

A foreign bequest paid in tranches as the estate was wound up

A parent's estate abroad took years to administer, so the inheritance reached the client in several payments rather than one. The reporting question was not whether but when: each tranche belonged to the year it was received, and the client had assumed the whole inheritance was a single event on the date of death. The work was reading the foreign probate record against the bank credits, assigning each receipt to its year, and filing for each of those years in order. What it produced was a reconciled schedule tying every payment to a filing.

Read how this one runs
Case study 3

A payment recorded as a gift that turned out to be a trust distribution

The family described the money as a gift from a grandparent. The documents described something else: a settlement holding the family's property abroad, with trustees who decided what each relative received and when. That changes what is reported and which parts of the form apply, so characterising the arrangement had to come before any filing. The work was obtaining the deed and the trustees' records, forming a view on the characterisation in writing, and filing on that basis. The engagement produced a documented position on the nature of the arrangement, and filings consistent with it.

Read how this one runs
Case study 4

A penalty notice reconciled against the client's own records

The first the client knew of the obligation was an assessment naming a year and an amount. The amount matched nothing in their records, and the reason mattered: an assessed figure can rest on a third-party report or on a misread entry in a return the client filed themselves. The work was reconciling the assessed receipt line by line to bank credits and family correspondence, then replying with the corrected picture and a dated account of what the client had known. The engagement produced a written reconciliation and a response on the file, rather than a payment made in the dark.

Read how this one runs
Case study 5

Several relatives, one year, and a question about aggregation

Money arrived from an aunt, an uncle and a parent in the same year, none of it large on its own. The client had looked at each transfer separately and concluded that nothing was reportable. Whether transfers from different people are tested separately or together is the whole question, and it turns on the relationships between the donors rather than on the size of any single payment. The work was mapping the donors and their relationships, settling which test applied, and filing on that basis with the reasoning recorded. What it produced was a filed year and a written note of why it was filed.

Read how this one runs
Case study 6

A flat abroad transferred instead of cash, and its valuation

A relative transferred a share in a flat rather than sending money, which removes the convenience of a bank credit to point at. The reportable amount had to be established from a valuation as at the date of transfer, in the local currency, and then translated. The work was obtaining a contemporaneous valuation, documenting the transfer against the local conveyancing record, and filing with the basis of the figure explained rather than asserted. The engagement produced a filing supported by a valuation the client can produce again if the year is ever examined.

Read how this one runs
Case study 7

Ten Years of Missed Returns Filed as One Engagement

Filing many years at once is a sequencing problem: carry-forwards, instalments and credits from the earliest year feed the latest. Filing them out of order is what turns a recoverable position into an assessed one.

Read how this one runs
Case study 8

Selling Into the US Without an Entity, and Filing in Several States

State obligations are set by each state, and a treaty does not reach them. The review measures activity against each state's own thresholds and separates the states where registration is required from the ones where it is not.

Read how this one runs

All case studies — every published engagement in one place.

Core International & Cross-Border Tax Services

International Tax Planning & Advisory

Strategy and compliance for income, assets and families spread across borders.

One coordinating team: filings on every side of the border are sequenced so treaty relief and foreign tax credits are claimed once — and in the right country.

U.S. & Cross-Border Tax Returns

Dual filers: U.S. citizens in Canada and Canadians with U.S. income run two parallel systems — we prepare both, in the right order, every year.

Expat & Emigration Tax

The move year is its own project: the elections and valuations filed that year decide the next decade of both countries’ returns.

Non-Resident Canadian Tax

Default withholding is 25% of gross: elective returns routinely turn over-withheld rent and pensions into refunds.

Transfer Pricing & BEPS

Documentation prepared with the return is the cheapest insurance in international tax; reconstructing it during an audit is the most expensive.

Cross-Border Estates & Trusts

Wills drafted for one country routinely misfire in the other — deemed disposition here, estate tax there, credits in between.

Cross-Border Corporate Tax

Expansion raises the same four questions every time — entity, PE, repatriation, payroll. We answer them before the tax authorities do.

India Tax for NRIs & Returning Residents

The deduction is taken on the sale price, not the gain — which is why an NRI property sale strands cash unless the certificate is applied for before closing.

Canadian Tax with a Foreign Element

Residency is decided on facts, not on a form — and the year you arrive or leave is the one where the largest amounts turn on the smallest details.

UAE Tax for Expats & Their Home Country

A zero-tax country is only half the answer — the question that decides the bill is whether the country you came from still treats you as resident.

Industries & Client Types We Serve Worldwide

Global E-commerce & Marketplaces
Technology & SaaS
Professional Services Firms
Cross-Border Real Estate
Importers, Exporters & Manufacturers
Athletes, Artists & Entertainers
Remote Workers & Digital Nomads
Investment Funds & Holding Companies

Global E-commerce & Marketplaces

  • Foreign VAT / GST / sales tax registrations
  • Marketplace withholding reviews
  • Inventory nexus & PE analysis
  • Multi-currency books reconciled
Explore E-commerce & Marketplaces

Technology & SaaS

  • Cross-border revenue sourcing & withholding
  • IP structuring with real substance
  • Equity for cross-border teams
  • U.S. expansion: entity & PE setup
Explore Technology & SaaS

Professional Services Firms

Firms and partners working across borders meet Regulation 105 withholding, PE risk on long engagements and per-country payroll for travelling staff.

A partnership is taxed in the hands of its partners, so one engagement abroad can reach every partner's personal return. The order matters: the waiver is applied for before the invoice, the presence is tracked before it becomes an establishment, and the payroll is registered before the first day worked in the other country.

  • Reg 105 / 102 waivers
  • Permanent establishment risk
  • Partner mobility planning
  • Cross-border withholding recovery
Explore Professional Services

Importers, Exporters & Manufacturers

  • Transfer pricing documentation (s.247)
  • Customs value vs transfer price
  • Foreign affiliate reporting (T1134)
  • Country-by-country reporting
Explore Trade & Manufacturing

Athletes, Artists & Entertainers

  • Reg 105 & U.S. CWA agreements
  • Multi-state & country calendars
  • Touring income allocation
  • Royalty & image-rights withholding
Explore Athletes & Entertainers

Remote Workers & Digital Nomads

  • Residency analysis before moving
  • Employer payroll exposure
  • Totalization & social security
  • Foreign tax credits
Explore Remote Workers

Investment Funds & Holding Companies

  • Treaty access & PPT reviews
  • FAPI & surplus computations
  • Withholding-efficient routing
  • Governance & substance
Explore Funds & Holdcos

The follow-up questions on Form 3520

Do I get a penalty for a gift from overseas that was not taxable?

The two questions are separate, and running them together is how this goes wrong. Whether a gift from a non-US person is taxable income to you is one question, and the answer is usually no. Whether it has to be reported is a different question, and the answer can be yes. Because the obligation is informational, the charge does not wait for tax to be owed: it is computed against the amount that went unreported, so a transfer that produced no tax at all can still produce a bill. That is the part clients find hardest to accept, and it is why these filings are missed rather than refused. Nobody treats a transfer from their own family as a tax event.

Is the Form 3520 penalty a flat amount or based on the gift?

Based on the amount, which is what makes it unlike most late-filing charges. An ordinary late return is penalised by reference to the tax owing and the length of the delay. Here there may be no tax at all, so the exposure is measured against the value that should have been reported — the gift, the bequest, the transfer into the trust, or the distribution out of it. The practical consequence is that the size of the exposure is set by the size of the family transfer rather than by anything you failed to pay, and one large receipt can carry more exposure than years of small ones. We establish the reportable amounts first, because the arithmetic follows from them.

Can a late Form 3520 penalty be removed if I did not know about it?

It can be, and the argument is made on facts rather than on sympathy. A reasonable-cause position is a dated account of what you knew, when you knew it, who advised you, and what you did once you found out. It is assembled from documents — the transfer records, the correspondence with the family or the trustees abroad, the instructions you gave whoever prepared your returns — and it is put in writing alongside the filings it explains. Not knowing the form existed is not by itself the argument. The argument is why a reasonable person in your circumstances would not have known. See reasonable cause statements for how one is put together.

I have missed Form 3520 for several years — how bad is that?

Both halves matter — what was received, and in which year it was received — because the exposure is measured year by year against the amounts that went unreported. So the first piece of work is a reconstruction: which receipts were reportable, in which year, and from whom. A single year holding a large bequest can outweigh several quiet ones. The order of filing then matters as much as the content, because the earliest year establishes the facts the later years rely on, and starting with the most recent year is what turns a manageable catch-up into an argued one. We sequence the years and settle the amounts before any form is prepared.

Should I just file the late Form 3520 on its own?

Sometimes, and sometimes that is the worst option available. A form posted in on its own, with no covering position, invites an assessment and leaves you arguing afterwards from a weaker place. The alternatives depend on the rest of your record: whether the income tax returns for those years were filed and correct, whether other foreign reporting was also missed, and whether what you received went on to produce income. Those facts decide whether the route is a late filing with a written position attached, a procedure for delinquent information returns, or a wider disclosure. Choosing the route is the decision; the form itself is the easy part. See delinquent information return procedures.

The IRS has assessed a Form 3520 penalty — what happens next?

Read the notice for what it actually asserts before answering it. It will name a year, a form and an amount, and the amount tells you what the IRS believes was received — which is sometimes wrong, because that figure can rest on a third-party report or on a misread entry in a return you filed yourself. So the first step is reconciling the assessed receipt to your own records. If it is overstated, the reply is a correction rather than a plea. If it is right, the reply is a documented reasonable-cause position and, where the record supports it, whatever administrative relief remains unused. A response that arrives late or unsupported narrows every option after it.

Do I need to report a foreign business I own?

Almost certainly, and on more than one form. Canada requires reporting of foreign affiliates on the T1134; the United States has a family of returns keyed to the entity type and your level of control, and several carry penalties that apply whether or not any tax is owed. These are information returns, so the obligation follows the ownership rather than the profit. See T1134.

How do families with assets in two countries handle inheritance?

With paperwork built for both systems rather than one. In practice that means wills that work where each asset actually sits, an executor with authority a foreign bank or land registry will accept, clearance certificates before the estate distributes so the executor is not left personally exposed, and an estate tax exposure calculation done while the person is alive and can still act on it. Doing it afterwards costs more and forecloses most of the options. See cross-border wills and trusts.

Our practitioners are alumni of leading accounting and tax institutions

Where our partners studied — CPA Canada (In-Depth Tax Program), AICPA, the Institute of Chartered Accountants of India and the Malaysian Institute of Accountants.

Request a Quote +1 (416) 619-0068