Which IRS offshore disclosure routes are still open in 2026?

The Streamlined Foreign Offshore Procedures, the Streamlined Domestic Offshore Procedures, the IRS Criminal Investigation Voluntary Disclosure Practice and the Delinquent International Information Return Submission Procedures are all live. The Offshore Voluntary Disclosure Program closed on 28 September 2018. The Delinquent FBAR Submission Procedures have been withdrawn and the IRS page for them now returns a 404 error, so late FBARs must be filed through the FinCEN BSA E-Filing system with a stated reason for the delay rather than under a named procedure with published relief. Confirm the current status on IRS.gov before building any submission.

Are penalties fully waived under the Streamlined Foreign Offshore Procedures, or do I still owe tax?

Penalties are waived; tax and interest are not. The IRS states that taxpayers complying with the Streamlined Foreign Offshore Procedures will not be subject to failure-to-file and failure-to-pay penalties, accuracy-related penalties, information return penalties or FBAR penalties. You must still pay the full tax due on the three amended or delinquent returns, together with statutory interest. For a high-net-worth filer holding UK funds, the largest single component of that liability is usually the section 1291 tax and interest charge on the PFIC holdings rather than the tax on ordinary income.

How is the 5 percent Streamlined Domestic Offshore penalty actually calculated?

The IRS aggregates the year-end account balances and year-end asset values of all the foreign financial assets subject to the penalty for each year in the covered period, identifies the highest of those aggregate figures, and charges 5 percent of it. The penalty therefore turns on a single year-end snapshot of your largest balance sheet in the period, not on income, not on the tax underpaid, and not on an average across the years. That is why the penalty can substantially exceed the tax at stake for someone with a large portfolio and modest distributions.

Does having many foreign accounts multiply my FBAR penalty exposure?

Not for non-willful violations. In Bittner v. United States, decided on 28 February 2023, the Supreme Court held that the non-willful FBAR penalty applies per report required to be filed rather than per account. Someone with twenty-five UK accounts therefore faces a per-year exposure rather than a per-account one. The statutory non-willful maximum under 31 USC 5321(a)(5) is not to exceed 10,000 dollars, subject to annual inflation adjustment of the Title 31 maximums. Willful exposure is different and remains tied to the greater of 100,000 dollars or 50 percent of the account balance.

What happens if I never filed a US return at all and I fail the 330-day test?

You have neither streamlined route. The Streamlined Domestic Offshore Procedures operate on amended returns and require US tax returns to have been filed for each of the most recent three years, while the Streamlined Foreign Offshore Procedures require the non-residency test to be met in at least one of the last three years. A complete non-filer who also fails that test is left with the Voluntary Disclosure Practice, applied for on Form 14457, or a reasonable cause filing outside any formal procedure. Establishing your filing history and day count is therefore the first step, not the last.

Offshore Disclosure High Net Worth Americans in the UK

Q: Do I have to disclose to HMRC as well as to the IRS?

If UK tax was underpaid on offshore income or gains, yes, and the route is HMRC's Worldwide Disclosure Facility. You notify through the Digital Disclosure Service and then have 90 days from acknowledgement to submit the disclosure and pay. It covers Income Tax, Capital Gains Tax, VAT and tax credits, and gives no immunity from criminal prosecution. Sequence matters: because revising a UK liability changes the foreign tax credit available on the same US year, the UK position should generally be settled before the US streamlined package is finalised.

What Is Offshore Disclosure for High-Net-Worth Americans in the UK?

Offshore disclosure high net worth cases are resolved through one of three IRS routes that remain live in 2026 - the Streamlined Foreign Offshore Procedures, the Streamlined Domestic Offshore Procedures, or the IRS Criminal Investigation Voluntary Disclosure Practice - and, where UK tax was also underpaid, through HMRC's Worldwide Disclosure Facility. For a US citizen living in London with substantial investment accounts, UK fund holdings and a private company shareholding, the choice between those routes is frequently a six-figure decision, because the principal penalty base scales with the value of the assets rather than with the tax at stake. This guide sets out what each route currently requires, which one the IRS withdrew this summer, and how the American and British disclosures should be sequenced.

Offshore disclosure is a structured, voluntary correction of past foreign reporting failures made before the tax authority makes contact. It is not the same as quietly filing amended returns. A quiet amendment carries no penalty protection at all, and for a wealthy filer it advertises the omission while leaving every penalty on the table. The formal routes exist precisely because the alternative is unbounded exposure.

Why Offshore Disclosure High Net Worth Cases Are Different

The published guidance on offshore disclosure is written for a taxpayer with one dormant savings account. That is not the profile of an American partner, portfolio manager or founder in the UK, and almost every feature of a substantial balance sheet makes the exercise harder rather than simply larger.

Penalty bases are asset-linked, not tax-linked. The Streamlined Domestic Offshore penalty is 5 percent of the highest aggregate year-end value of your foreign financial assets across the covered period, so a portfolio that generated modest taxable income can still carry a very large penalty.
Multiple accounts multiply the reporting failures. Current accounts, deposit accounts, brokerage accounts, platform accounts and any business accounts over which you hold signature authority are each separately reportable on the FBAR.
UK-domiciled funds are almost always passive foreign investment companies, which brings Form 8621 and the punitive section 1291 regime into a package that would otherwise have been straightforward.
Private company shareholdings pull in Form 5471, and an unfiled Form 5471 keeps the entire tax return open to assessment indefinitely rather than for the usual three years.
Interests in UK partnerships and LLPs bring Form 8865 into scope alongside the underlying income reporting.
A wealthy taxpayer's conduct is scrutinised more closely on the non-willfulness question, because access to professional resources is precisely the sort of fact the IRS weighs when testing whether a failure was genuinely inadvertent.

The practical consequence is that the route decision has to be made on the full asset picture, not on the size of the unpaid tax. Two clients with identical tax liabilities can face wildly different outcomes depending on which procedure they qualify for.

Which IRS Offshore Disclosure Routes Are Open in 2026?

This matters more than usual right now, because the landscape has changed. The status of each route should be confirmed on IRS.gov before any package is built, and one option that older guides still recommend no longer exists.

Streamlined Foreign Offshore Procedures (SFOP). Live. For non-willful taxpayers who meet the non-residency test. No failure-to-file, failure-to-pay, accuracy-related, information return or FBAR penalties.
Streamlined Domestic Offshore Procedures (SDOP). Live. For non-willful taxpayers who fail the non-residency test but have already filed returns for the covered years. Carries a 5 percent Title 26 miscellaneous offshore penalty.
IRS Criminal Investigation Voluntary Disclosure Practice (VDP). Live, applied for on Form 14457. This is the route where conduct may have been willful. The IRS announced proposed updates to the practice on 22 December 2025 with a public comment period that closed on 22 March 2026; those proposals were not final and confer no rights on taxpayers who applied beforehand.
Delinquent International Information Return Submission Procedures. Live. Used to file late Forms 5471, 8938 and 8865 with a reasonable cause statement attached. Note the practical trap: the IRS states that penalties may be assessed during processing without the attached statement being considered, so you must expect to argue reasonable cause a second time on notice.
Delinquent FBAR Submission Procedures (DFSP). Withdrawn. The IRS page for this procedure has been taken down and the address now returns a 404 error. Do not build a plan around it.
Offshore Voluntary Disclosure Program (OVDP). Closed on 28 September 2018 and not reinstated.

The withdrawal of the DFSP is the single most consequential change for wealthy filers whose only defect was unfiled FBARs. That population previously had a cheap, well-defined administrative fix. What remains is the general instruction on the IRS FBAR page to file late reports as soon as possible through the FinCEN BSA E-Filing system, selecting a reason for late filing and explaining the delay - which is a practice, not a procedure with published penalty relief.

How Do the Streamlined Foreign Offshore Procedures Work From the UK?

The Streamlined Foreign Offshore Procedures are the best available outcome for a US citizen resident in the UK, because a qualifying submission attracts no penalties at all. The IRS requires that, in any one or more of the most recent three years, the individual did not have a US abode and was physically outside the United States for at least 330 full days. For an individual who is neither a citizen nor a lawful permanent resident, the test is instead failing the substantial presence test of IRC section 7701(b)(3) in at least one of the last three years.

Delinquent or amended returns on Form 1040 or 1040X for each of the most recent three years for which the due date has passed, with all required information returns attached.
Delinquent FBARs on FinCEN Form 114 for each of the most recent six years for which the FBAR due date has passed.
Form 14653, Certification by US Person Residing Outside of the US, signed and setting out the specific reasons for the failure.
The words Streamlined Foreign Offshore written in red at the top of each return in the package.
Full payment of the tax and statutory interest due on the three amended or delinquent years.

Non-willful conduct is defined by the IRS as conduct due to negligence, inadvertence or mistake, or conduct that is the result of a good faith misunderstanding of the requirements of the law. The Form 14653 narrative is the load-bearing element of the whole submission. It must be specific and personal, and for a sophisticated filer it has to explain credibly how someone who manages substantial assets did not know about the reporting obligation. Generic wording is what converts an otherwise good file into an examination.

When Does the 5 Percent Streamlined Domestic Offshore Penalty Apply?

If you cannot satisfy the 330-day and abode test in any of the three years, you fall to the Streamlined Domestic Offshore Procedures. The package is broadly similar - three years of amended returns, six years of FBARs, and Form 14654 instead of Form 14653 - but it carries a 5 percent Title 26 miscellaneous offshore penalty. The IRS computes that penalty by aggregating the year-end account balances and year-end asset values of all the foreign financial assets subject to the penalty for each year in the covered period, taking the highest of those aggregate figures, and charging 5 percent of it. Note what that means for someone wealthy: the penalty is driven by a single year-end snapshot of the largest balance sheet in the period, not by income, and not by an average.

There is a trap here that is rarely stated plainly. Eligibility for the domestic procedures requires that you have already filed US tax returns for each of the most recent three years, because the procedure operates on amended returns. A complete non-filer who also fails the non-residency test therefore has neither streamlined route available and is left with the Voluntary Disclosure Practice or a reasonable cause filing outside any formal procedure. Establishing the filing history and the day count early is not administrative housekeeping; it determines which options exist.

How Do PFICs and UK Funds Change the Disclosure Arithmetic?

Most UK-domiciled collective investments held by a US person are passive foreign investment companies. Without a timely election, they fall into the default section 1291 regime, under which an excess distribution - the part of a distribution greater than 125 percent of the average distributions received over the preceding three years - is thrown back across the holding period and taxed at the highest ordinary rates for those years, with a separate interest charge layered on top. Gains on disposal are treated the same way. The result is an effective rate that can approach or exceed the headline rate on the gain itself.

Form 8621 is generally required for each PFIC, though the instructions provide an exception where the aggregate value of section 1291 fund stock held directly is 25,000 dollars or less on the last day of the tax year, or 50,000 dollars or less on a joint return, with a 5,000 dollar equivalent for indirect holdings. A high-net-worth portfolio passes those thresholds immediately, so the disclosure package frequently contains a stack of Forms 8621 running to hundreds of pages. Where the funds themselves produce recoverable UK information, a qualified electing fund or a section 1296 mark-to-market election may improve the position going forward, but the elections have their own timing and consequences and cannot rewrite the historic section 1291 years by themselves.

What Are the FBAR Penalties for Someone With Many Accounts?

The FBAR is required where the aggregate value of your foreign financial accounts exceeded 10,000 dollars at any time during the calendar year. It is due on 15 April with an automatic extension to 15 October that does not have to be requested. Under 31 USC 5321(a)(5) the statutory civil penalty for a non-willful violation is not to exceed 10,000 dollars, while a willful violation carries the greater of 100,000 dollars or 50 percent of the balance in the account at the time of the violation. The IRS confirms that the Title 31 civil FBAR penalty maximums are adjusted annually for inflation, so the current ceilings sit above those statutory figures. A statutory reasonable cause exception disapplies the non-willful penalty where the balance in the account was properly reported.

The Supreme Court's decision in Bittner v. United States, handed down on 28 February 2023, matters enormously to this readership. The Court held by five votes to four that the non-willful FBAR penalty applies per report required to be filed, not per account. For a wealthy filer with two dozen UK accounts, that holding is the difference between a per-account calculation running into millions and a per-year calculation running into tens of thousands. It changes the cost of the do-nothing scenario, and therefore it changes the sensible route choice. It does nothing, however, for willful exposure, which remains tied to 50 percent of the account balance and is genuinely unbounded on a large balance sheet.

Which Statutes Keep Your Old Years Open?

Wealthy clients frequently assume the early years have gone quiet. For anyone holding foreign entities or substantial foreign assets, that assumption is usually wrong on both sides of the Atlantic.

IRC section 6501(c)(8): where a required international information return such as Form 5471 or Form 8938 has not been filed, the assessment period for the return does not expire until three years after the information is finally furnished to the IRS. Where the failure was due to reasonable cause and not willful neglect, the extension is confined to the items related to the failure.
IRC section 6501(e)(1)(A)(ii): a six-year assessment period applies where income omitted from the return and attributable to assets reportable under section 6038D exceeds 5,000 dollars.
Information return penalties: Forms 5471 and 8938 each carry a 10,000 dollar initial penalty, plus 10,000 dollars for each 30-day period after a 90-day notice period, subject to a 50,000 dollar maximum continuation penalty, under IRC sections 6038, 6046 and 6679 for Form 5471 and section 6038D for Form 8938.
UK assessment limits: HMRC works to four years ordinarily, six years for careless behaviour, twelve years for income tax and capital gains tax involving offshore matters or offshore transfers from 2015-16 onwards regardless of whether reasonable care was taken, and twenty years where the behaviour was deliberate.

Do You Also Have to Disclose to HMRC?

Very often, yes. A US citizen who is UK resident and has been reporting a partial picture to HMRC - omitting a US brokerage account, foreign dividend income or a disposal - has a British problem running in parallel with the American one. The route is the Worldwide Disclosure Facility. You notify HMRC through the Digital Disclosure Service, and once the notification is acknowledged you have 90 days to gather the information and submit the disclosure with payment. The facility covers Income Tax, Capital Gains Tax, VAT and tax credits, and disclosures can currently include tax years up to and including 2024 to 2025. It confers no immunity from criminal prosecution.

UK offshore penalties are graded by the territory in which the income or asset sits. Under HMRC's published guidance the maximum penalty is 100 percent of the tax for a Category 1 territory, 150 percent for Category 2 and 200 percent for Category 3, with the higher Category 2 and 3 rates applying to Income Tax and Capital Gains Tax. Within each band the actual percentage depends on whether the disclosure was prompted or unprompted and on the quality of the assistance given, and HMRC warns that in some cases it is unlikely to reduce a penalty by more than 10 percentage points above the minimum. Separately, the Requirement to Correct regime imposed a distinct and markedly harsher Failure to Correct penalty on historic offshore non-compliance that was not corrected in time, and that exposure should be assessed on the specific years in question. The volume of HMRC nudge letters reflects the data now flowing in: HMRC receives account information under the Common Reporting Standard from more than 100 jurisdictions, alongside FATCA reporting from the United States.

How Should the US and UK Disclosures Be Sequenced?

This is where most cross-border disclosures go wrong, and it is the part that single-jurisdiction guidance never addresses. The two disclosures are not independent workstreams that can be run separately and in parallel.

Settle the UK numbers before finalising the US returns. Revising your UK liability for a year changes the foreign tax credit claimable on the US return for that same year. Filing the streamlined package first usually means amending it later.
Map the years before you compute anything. The UK tax year runs from 6 April to 5 April and the US year is the calendar year, so UK income and gains have to be reapportioned before any credit position can be tested.
Treat unprompted status as a wasting asset on both sides at once. An HMRC nudge letter does not disturb IRS streamlined eligibility, but IRS contact does, and CRS and FATCA data move in both directions. Whichever authority makes contact first, the clock is running on the other.
Confirm no IRS civil examination or criminal investigation is open before submitting anything, because either one removes streamlined eligibility outright.
Decide the PFIC treatment before the UK computations are locked, since the US characterisation of the same fund holdings drives which years carry material US tax and therefore where credit relief actually helps.

Worked Example: A UK-Resident US Investment Banker

Take a US citizen who has lived in London for eleven years. He holds roughly 3.2 million pounds on a UK investment platform, largely in UK-domiciled funds; a 30 percent shareholding in a UK consultancy company; nine personal bank and deposit accounts; and signature authority over two company accounts. He has filed his Forms 1040 every year through a US preparer who was never told about the UK holdings, so no FBARs, no Forms 8621 and no Form 5471 have ever been filed. The highest year-end aggregate value of his foreign financial assets across the covered period is 4.1 million pounds.

If he can show that in at least one of the last three years he had no US abode and spent 330 full days outside the United States, he qualifies for the Streamlined Foreign Offshore Procedures. He files three years of amended returns with the PFIC and Form 5471 reporting attached, six years of FBARs, and Form 14653. He pays the tax and interest, including the section 1291 tax and interest charge on the fund holdings, but no penalty of any kind.

Now change one fact. Suppose he spent fourteen months on secondment in New York within that three-year window and cannot clear 330 days in any of the three years. He drops to the Streamlined Domestic Offshore Procedures, and the same submission now carries a 5 percent penalty on the 4.1 million pound peak - roughly 205,000 pounds - on top of identical tax and interest. One travel record, worth more than every other document in the file. This is why the day count and the abode analysis are the first things to establish, not the last.

How to Choose the Right Route

The sequence of questions is fixed, and each answer closes off options. Work through them before drafting anything, because the certification you sign is a sworn statement and the route cannot be quietly changed once a package has been filed.

Was the conduct genuinely non-willful on the IRS definition? If not, the streamlined procedures are unavailable and the Voluntary Disclosure Practice is the route.
Has the IRS already made contact through a civil examination or criminal investigation? If so, streamlined eligibility is gone.
Can you evidence 330 full days outside the United States and the absence of a US abode in any one of the last three years? This decides between a nil penalty and 5 percent of the peak asset value.
Have US returns actually been filed for the covered years? If not, and the non-residency test also fails, neither streamlined procedure is open.
What is the highest year-end aggregate value of the foreign financial assets across the covered period? That figure, not the tax, sizes the domestic penalty.
Is there a parallel UK exposure, and has HMRC already prompted it? That determines whether the Worldwide Disclosure Facility runs first and at what penalty band.