The non-willfulness statement is the written narrative attached to Form 14653, in which a taxpayer using the Streamlined Foreign Offshore Procedures certifies, under penalty of perjury, that their failure to report income, pay tax and file required information returns was due to non-willful conduct — negligence, inadvertence, mistake, or a good faith misunderstanding of the law. It is the only part of a streamlined submission where you speak in your own voice, and it is the part the IRS actually reads first.
Everything else in the package is mechanical. Three years of returns, six years of FBARs, the foreign tax credit computations, the PFIC treatment of an ISA — all of it is arithmetic that a competent preparer will get right. The certification is different: it is a legal assertion about your state of mind over a period of years, and the IRS has been rejecting or querying statements it considers inadequate. A submission with perfect returns and a boilerplate narrative is a weaker submission than the reverse.
What the IRS is actually asking
The standard is set out on the IRS's Streamlined Filing Compliance Procedures page: the failure must have resulted from non-willful conduct, defined as conduct due to negligence, inadvertence, or mistake, or conduct resulting from a good faith misunderstanding of the requirements of the law.
The inverse of that definition is what you are implicitly denying. Willfulness in this context is broader than deliberate evasion — it includes reckless disregard of a known obligation and willful blindness, the state of deliberately not asking a question you suspect you would not like the answer to. That is why "I never looked into it" is a phrase to handle with real care rather than a helpful admission of innocence.
The form requires specific facts and reasons, generally set out on a signed attachment. Facts, not adjectives. The IRS is not persuaded that you were confused; it is persuaded by a sequence of events from which confusion is the obvious inference.
The structure that works
A statement that survives review reads like a witness account: chronological, specific, unadorned. Five components, in this order, cover what the IRS needs.
The whole thing usually runs to two or three pages. Length is not a virtue — a thirty-page dissertation invites scrutiny of every claim in it — but neither is a paragraph, which reads as though there was nothing to say.
- Background: who you are, your citizenship, when and why you left the United States, and what your life in the UK looks like — the facts that make an American in Britain a plausible non-filer rather than an offshore investor.
- The accounts and assets: how each one came to exist, in what year, and for what ordinary purpose — a salary account opened by an employer, a workplace pension entered by auto-enrolment, an ISA opened because a UK colleague recommended it.
- What you understood and why: the specific beliefs you held about your US obligations, and the specific sources of those beliefs — a named UK accountant, an employer's relocation briefing, HR paperwork, a bank's forms.
- Discovery: what happened, and when, that made you realise you had a problem — a FATCA letter from your bank, a mortgage application, a friend's mention, an article.
- Response: what you did immediately after discovering it, and how quickly. This is the paragraph that most distinguishes a strong statement from a weak one.
Specificity is the whole game
The difference between a statement that is accepted and one that is queried is almost always the level of detail. Compare two ways of saying the same thing.
Weak: "I was not aware that US citizens living abroad had to file US tax returns. I relied on my accountant." That is a conclusion with nothing underneath it. It could have been written by anyone, about any facts, which is precisely why it invites a question.
Strong: "I moved to London in March 2016 to take a role at [employer]. In April 2016 I engaged [named firm] to prepare my UK Self Assessment return. I asked whether I had any continuing US filing obligations and was told that because my income was UK-earned and fully taxed in the UK, there was nothing further to do. I did not seek a second opinion. I first learned this was wrong in November 2025, when my bank wrote to me requesting a Form W-9 to confirm my US status. I contacted a US-qualified adviser within two weeks."
The second version asserts nothing about innocence. It simply lays out events from which non-willfulness follows, which is a far more durable position than asking the reader to accept a characterisation.
What gets a certification rejected
The IRS has been explicit that some Forms 14653 and 14654 have not provided adequate information and have been questioned or rejected. In practice the causes cluster into a small number of recurring patterns.
The most serious is a statement that inadvertently describes willful conduct. If your narrative says you knew about the FBAR requirement but decided it did not matter because the accounts were small, you have not described a mistake — you have described a decision. Admitting willfulness in the statement of facts does not make it a better disclosure; it disqualifies the application.
- Generic language with no names, dates or documents — the single most common cause of a query.
- A narrative that contradicts the returns, most often on when an account was opened or when income began.
- Unexplained sophistication: a taxpayer who works in finance, or holds multiple offshore structures, without addressing why that background did not lead to the right question.
- A long gap between discovery and action, left unexplained.
- Facts that describe a conscious decision rather than an oversight — the willfulness own goal.
- Missing the required signatures: on a joint submission both spouses must sign, and each must be covered by the facts stated.
The details around the narrative that also have to be right
The certification does not stand alone. Form 14653 also requires you to confirm eligibility, and an error there undermines the whole submission regardless of how good the narrative is.
You must meet the non-residency requirement — for a US citizen or lawful permanent resident, that means in at least one of the most recent three years for which the return due date has passed, you did not have a US abode and were physically outside the United States for at least 330 full days. Abode is a distinct concept from tax home and is where a surprising number of otherwise clean cases fail.
You must also confirm that all required returns and FBARs are included, that the tax and interest have been paid with the submission, and that the IRS has not already initiated an examination for any of the years. Prior contact from the IRS closes the streamlined door.
Writing it when the facts are awkward
Most real cases have at least one uncomfortable element, and the instinct to leave it out is exactly wrong. An omission the IRS later notices converts a credible statement into a suspect one, and the certification is signed under penalty of perjury.
The right approach is to state the awkward fact plainly and immediately give the context that explains it. If you ticked a box on a bank form saying you were not a US person, say so, and explain what you understood the question to mean — many Americans in Britain genuinely read "US taxpayer" as meaning someone who lives and works in America.
If you filed some years and not others, explain the pattern rather than hoping it passes unnoticed. If you had already filed a few returns quietly before deciding to do this properly, say that too — prior delinquent or amended filings do not automatically bar you from the streamlined procedures, though any penalty already assessed on them will not be abated. Our guide to why a quiet disclosure is the most expensive route covers that interaction.
Who should write the non-willfulness statement
The statement must be true in your voice, which creates a genuine tension: the person with the facts is not usually the person who knows what the IRS is looking for.
The approach that works is collaborative. You write the first draft, badly, in plain language and with every date you can remember. Your adviser then works on structure, on what is missing, and on removing characterisations that create risk. What must never happen is an adviser producing a polished narrative from a template and asking you to sign it — that produces exactly the generic document the IRS is now rejecting, and you are the one signing under penalty of perjury.
Where the facts are genuinely borderline on willfulness, the question stops being how to write the statement and becomes which programme to use at all. That is a legal judgement, and it should be taken before any drafting starts. Our guides to choosing streamlined filing experts and the difference between the domestic and foreign offshore procedures cover how to make that call.
Reliance on an adviser: the strongest fact, stated carefully
Reliance on professional advice is the most common and most persuasive basis for non-willfulness among Americans in the UK, because it reflects what actually happened: a UK accountant, competent in UK tax and unqualified in US tax, told them their UK filings were the whole picture.
For the reliance to carry weight, three things need to be present in the narrative. You must have engaged the adviser for the relevant purpose, disclosed the material facts to them — including your US citizenship — and actually relied on what they said. An adviser you never told you were American cannot support the argument, and saying so plainly is better than leaving the gap for a reader to notice.
Name the firm and give the dates. A statement that says "my accountant told me" without identifying who or when is indistinguishable from a statement invented afterwards, and that is exactly the inference a reviewer is entitled to draw.
The financially sophisticated taxpayer problem
The IRS applies no formal presumption against sophisticated taxpayers, but reviewers are human and a hedge fund partner who did not know about FBARs invites more scepticism than a schoolteacher who did not.
If your background is in finance, law or accounting, address it directly rather than hoping it is not noticed. The honest and usually accurate answer is that expertise is narrow: someone who structures credit derivatives has no more reason to know about FinCEN Form 114 than any other salaried professional, and personal cross-border compliance is genuinely outside the field.
The same applies to holding multiple accounts or an offshore structure. Volume alone does not imply concealment, but it does require explanation — why each account exists, what ordinary purpose it served, and why the pattern is untidy rather than deliberate.
The evidence file you should keep
The IRS does not ask you to attach supporting documents to Form 14653. That is not a reason to be without them. If the submission is later examined, the value of the statement rests entirely on whether its factual claims can be evidenced.
Assemble the file as you draft, not afterwards. It should contain the engagement letters or emails with any adviser whose advice you relied on, the bank correspondence that prompted discovery, the account opening documents showing dates and purposes, employer relocation materials, and the correspondence trail showing how quickly you acted after discovery.
Keep it for at least six years after the submission. The retention period should match the FBAR years covered, and this is the file that answers a question the certification only asserts.
What happens after you send it
There is no acceptance letter. The IRS does not acknowledge a streamlined submission, does not confirm eligibility, and does not tell you the matter is closed. Returns are processed in the ordinary way and silence follows.
That silence is uncomfortable but it is normal, and it is not the same as approval — the IRS retains the ability to examine the years within the ordinary limits. What a properly certified submission gives you is the 0% miscellaneous offshore penalty for those meeting the foreign offshore requirements, and a contemporaneous account of your conduct on the record, framed by you rather than by an examiner.
Practically, that means filing correctly from then on matters as much as the catch-up itself. A streamlined submission followed by a late return the next year undermines the story it told. TaxStone prepares streamlined packages including the certification narrative and the evidence file behind it, and stays on the annual filings afterwards. If you are drafting a Form 14653 or have had one queried, contact us with the years involved.
