US Personal Tax Services for HNW With Unfiled Returns
US personal tax services that bring wealthy Americans with unfiled returns current: foreign income, accounts and information returns reconciled. Book a review.
Personal US tax, handled precisely
Comprehensive US personal tax services for a wealthy American with unfiled returns do one thing above all: they get the filings done, properly. Not advice about what you should have filed, but reconstructed years, reconciled foreign income and accounts, every information return prepared, and the whole package brought current with the IRS, usually through the streamlined procedures.
That distinction matters. When a high-net-worth individual has let personal filings lapse, the risk is rarely a lack of understanding. It is the volume and interaction of foreign income, accounts, funds and entities that generalist preparation quietly mishandles. At Jungle Tax we prepare and file these returns for private clients on both sides of the Atlantic, and the point of this guide is to show what a genuinely complete engagement looks like and where the common shortcuts fail.
What does "unfiled" actually mean for a wealthy US person?
US citizens and green-card holders are taxed on worldwide income regardless of where they live. That obligation does not pause because you moved to London, sold a business, or now live largely on investment income. If you have not filed for several years, you are almost certainly delinquent not on one return but on a stack of interlocking obligations:
- The federal Form 1040 and its schedules for each open year.
- A possible state return, if you never formally severed residency from a high-tax state such as California or New York.
- The FBAR (FinCEN 114) for foreign accounts whose aggregate value crossed $10,000 at any point in the year.
- Form 8938 under FATCA for a broader class of foreign financial assets above higher thresholds.
- Form 8621 for each passive foreign investment company (PFIC) — which is what most UK funds, OEICs and ISA holdings actually are to the IRS.
- Form 5471 if you own or control a UK limited company, and Form 3520 / 3520-A for foreign trusts, certain pensions, or large foreign gifts and inheritances.
The 1040 is the visible part. The information returns are where the penalties, and the specialist work, actually live. A return that reports the income correctly but omits a required 8938 or 8621 is not compliant, and the penalties attached to those forms are structural rather than income-based.
Is there a statute of limitations if I never filed?
No, and this is the fact that reframes everything. The assessment statute of limitations only begins to run when a return is filed. An unfiled year stays open indefinitely; the IRS can assess tax, interest and penalties for it at any point in the future. Filing is the act that closes the exposure and starts the clock.
This is why the modern advice for wealthy Americans abroad is to come forward proactively. Under FATCA, foreign banks report US-connected account holders directly to the IRS, so the practical question is not whether your foreign accounts are visible, but whether you reach the IRS with a clean, voluntary disclosure before its data reaches you. The IRS Streamlined Filing Compliance Procedures exist precisely to make that voluntary route workable.
The Streamlined Foreign Offshore Procedures, explained properly
For an American living outside the US, the primary catch-up route is the Streamlined Foreign Offshore Procedures (SFOP). It is not an amnesty you apply to and wait for approval on; it is a defined filing package you assemble and submit. Its terms are favourable, but its conditions are precise.
| Element | Streamlined Foreign Offshore (SFOP) | Why it matters for HNW filers |
|---|---|---|
| Tax returns required | 3 most recent delinquent or amended years | You do not refile a decade — scope is contained |
| FBARs required | 6 most recent years | Longer look-back than the returns; accounts must be reconstructed |
| Penalties | Failure-to-file, failure-to-pay, accuracy and FBAR penalties waived | Only back tax plus interest is due |
| Income/wealth ceiling | None | No disqualification for high income or large portfolios |
| Core condition | Non-willful conduct, certified on Form 14653 | The certification narrative is the heart of the submission |
| Residence test | Non-US residence for the relevant period | Days-present test must be evidenced, not assumed |
| Disqualifier | IRS has already contacted you | Timing is the whole game |
Two points are consistently underplayed by generalist pages. First, the Form 14653 non-willful certification is a signed statement of facts, and it must be true, specific and consistent with the numbers on the returns. A vague or boilerplate narrative is a liability, not a formality. Second, there is no wealth ceiling: complex, high-value cases are eligible, they are simply harder to prepare. Our IRS streamlined filing experts treat the certification and the return preparation as a single, reconciled exercise so the story and the figures never diverge.
What if the streamlined route does not fit?
If the IRS has already contacted you, or if conduct was arguably willful, streamlined is off the table and the analysis shifts to the IRS Voluntary Disclosure Practice or reasonable-cause filings. These carry higher cost and penalty exposure, which is exactly why the eligibility assessment must come before, not after, any return is drafted. Getting this sequencing wrong is the most expensive mistake an unadvised filer makes.
Where wealthy returns actually go wrong: the cross-border traps
A modest expat salary reconciled with the Foreign Earned Income Exclusion or Foreign Tax Credit is straightforward. The wealthy return is a different animal, because the income is investment-heavy and the accounts are held in structures the US tax code treats with suspicion. This is the ground generalist preparers routinely mishandle.
UK funds, ISAs and the PFIC problem
To the IRS, a UK-domiciled fund — a unit trust, OEIC, investment trust, or the funds inside a stocks-and-shares ISA — is almost always a passive foreign investment company (PFIC). The tax shelter your ISA enjoys in the UK does not exist for a US person. Each PFIC holding generally requires its own Form 8621, and under the default excess-distribution regime the tax is calculated punitively, with interest charges on deferred gains. For an unfiled catch-up with several years of fund holdings, this is frequently the single largest piece of preparation work, and the elections available (such as mark-to-market) can materially change the outcome if made correctly. Our cross-border tax planning team models these before the returns are locked.
FBAR versus 8938: two forms, one dataset
Wealthy filers usually trip on assuming these are the same filing. They are not. The FBAR goes to the Treasury and reports accounts; Form 8938 goes to the IRS with the 1040 and reports a broader class of assets at higher thresholds. Many accounts appear on both, which feels redundant but is required. The correct approach is to build one master schedule of every foreign account and asset, with peak balances by year, and drive both forms from it — never to prepare them independently.
UK companies, trusts and pensions
Own a UK limited company and you are likely in Form 5471 territory, with GILTI and Subpart F consequences layered on top. Hold or benefit from a UK trust and Forms 3520 and 3520-A appear, each with penalties that start at the greater of $10,000 or a percentage of the assets. Even UK pensions, a SIPP or a workplace scheme, require deliberate treaty analysis to decide how contributions and growth are treated. None of these are edge cases for a high-net-worth American in Britain; they are the norm.
US versus UK: the same money, taxed twice, on different calendars
The deepest and least-appreciated complexity is the interaction between the two systems. A dual filer is not two separate compliance problems; it is one set of facts that must satisfy both the IRS and HMRC without contradiction. The table below sets out where the frictions live.
| Issue | US / IRS position | UK / HMRC position |
|---|---|---|
| Tax year | Calendar year to 31 December | 6 April to 5 April |
| Basis of taxation | Worldwide, by citizenship | Worldwide if UK resident (post FIG-regime changes) |
| ISA | Fully taxable; funds are PFICs | Tax-free wrapper |
| Main-home sale gain | Partly taxable above the exclusion | Usually exempt via Private Residence Relief |
| Pension growth | Treaty analysis required | Tax-deferred inside the wrapper |
| Double-tax relief | Foreign Tax Credit (Form 1116) | Foreign Tax Credit Relief / treaty |
| Catch-up mechanism | Streamlined Foreign Offshore Procedures | Worldwide Disclosure Facility |
The calendar mismatch alone causes error after error. UK tax paid in a UK tax year has to be sliced and allocated to the correct US calendar year to claim it as a foreign tax credit on Form 1116. Do it loosely and you either lose credit you were entitled to or over-claim and undermine the return. The UK rules on foreign income and the recent move away from the remittance basis to the FIG regime add a further layer for those who arrived, or are leaving, mid-history.
There is also the disclosure symmetry problem. If your US catch-up says one thing and any UK disclosure to HMRC says another, you have created two records that contradict each other. A single firm holding both sides — combining our US tax services and UK tax services — keeps the narrative and the numbers identical across both jurisdictions.
What a complete engagement looks like, step by step
A serious private-client catch-up is a defined process, not an open-ended one. This is the shape of the work.
1. Scoping and eligibility
Before a single figure is entered, we confirm which catch-up route applies, whether streamlined residence and non-willful tests are met, and exactly how many years and forms are in scope. This is where the number of returns is fixed and the risk is priced.
2. Reconstruction
We rebuild each open year from source: foreign and US brokerage statements, bank records, pension and fund reports, company accounts and trust records. For HNW cases this is the heavy lifting — every foreign account gets a peak-balance history, every fund is tested for PFIC status.
3. Reconciliation and preparation
One master dataset drives everything: the 1040, the state return, the FBARs, the 8938, each 8621, and any 5471 or 3520. Foreign tax credits are allocated by US calendar year. Nothing is prepared in isolation, so the forms cannot contradict one another.
4. Certification and packaging
The Form 14653 non-willful narrative is drafted to match the reconstructed facts precisely, and the complete streamlined package is assembled to the IRS's required format and sequence.
5. Filing and aftercare
The package is filed, records retained, and — critically for wealthy clients — a forward compliance calendar is set so the same lapse never recurs. If a UK disclosure is also needed, both are run in parallel from the one dataset.
Why generalist preparation is the wrong tool here
A competent domestic CPA can file a clean 1040. What they typically cannot do at speed is identify a UK OEIC as a PFIC, model the excess-distribution charge, reconcile a UK-tax-year credit onto a US calendar year, and draft a certification narrative that will survive IRS scrutiny — all at once, across several unfiled years. The competitor pages that dominate this search largely stop at the streamlined overview and the Foreign Earned Income Exclusion. For a wealthy filer, that is where the real work begins, not ends. Comprehensive US personal tax services, delivered by a firm that lives in the US×UK interaction, are what turn a stack of unfiled years into a filed, defensible, closed position.
The cost of choosing wrong is not abstract. A missed PFIC election locks in the punitive excess-distribution regime for the life of the holding. A foreign tax credit allocated to the wrong US year is either forfeited or overstated. A boilerplate certification narrative that contradicts the underlying figures can convert a clean streamlined submission into an examination. Each of these is avoidable, but only when the preparation is done as one integrated exercise by people who have prepared these exact returns many times before, rather than assembled piecemeal from separate specialists who never see the whole file. That integration — scoping, reconstruction, reconciliation, certification and filing under one roof — is what separates a genuine private-client engagement from a generic tax-prep transaction, and it is what a wealthy American with years of unfiled returns should insist on.
Speak to us in confidence
If you are a high-net-worth American who has fallen behind, the exposure is real but the path back is well-defined — and it is materially better to walk it before the IRS reaches you. We will scope your position, confirm the right catch-up route, and prepare and file every return and information form to bring you current. To begin, contact our cross-border team for a confidential review of your unfiled years and a clear plan to close them.
