Introduction
One of the most common questions Americans living in the UK ask when they discover their US filing obligation is this: How much is this going to cost me?
It is a completely reasonable question. And it deserves a straightforward, honest answer.
The total cost of an IRS Streamlined Filing Compliance submission has two components. The first is the specialist adviser fee. The second is the actual US tax and interest owed on any previously unreported income.
Both are far lower than most people fear. And both are far lower than the cost of getting it wrong — whether that means being caught by the IRS without a Streamlined submission in place, or using the wrong adviser who produces an incomplete or inaccurate package.
This guide gives a candid breakdown of what specialist help actually costs in 2026, what drives the fee, and how to evaluate whether the price represents good value. Contact Jungle Tax at https://www.jungletax.co.ukto discuss your specific situation.
What Is IRS Streamlined Filing Compliance?
The Program in Brief
The term “IRS Streamlined Filing Compliance” refers to the IRS Streamlined Filing Compliance Procedures, a voluntary disclosure program for US taxpayers who have not filed required returns due to non-wilful non-compliance.
The foreign track — the Streamlined Foreign Offshore Procedures — applies to US persons who live outside the United States. Under this track, the taxpayer files three years of delinquent or amended federal income tax returns and six years of FBARs, pays any tax and interest owed, and submits a signed non-wilfulness certification.
The key benefit is that no miscellaneous offshore penalty applies under the foreign track. The IRS imposes only the underlying tax and interest, not the potentially significant offshore penalties that apply outside the program.
The full IRS Streamlined Filing Compliance Procedures are published at:
https://www.irs.gov/individuals/international-taxpayers/streamlined-filing-compliance-procedures
Why the Cost Question Is So Important
Many Americans abroad delay acting on their US filing obligation because they assume the cost will be prohibitive. They see hefty tax bills, severe fines, and high professional expenses.
In the vast majority of cases, this assumption is wrong. The Foreign Earned Income Exclusion and the foreign tax credit together eliminate most or all of the US tax liability for Americans working in the UK. Specialist adviser fees are transparent and predictable. And the Streamlined program eliminates the miscellaneous offshore penalty for eligible filers.
Understanding the actual cost structure — before you act — removes the anxiety and enables a clear-headed decision.
Who This Guide Is Written For
This guide is written for US citizens and permanent residents living in the UK who are considering using the IRS Streamlined Filing Compliance Procedures but want to understand the financial commitment before proceeding.
It is equally relevant to those who have received quotes from different advisers and want to understand what drives the variation in fees.
The Significance of IRS Streamlined Filing Compliance in 2026
The Cost of Inaction Is Rising
The possible FBAR penalty exposure increases by one year for each year of noncompliance. The non-wilful FBAR penalty is up to $10,000 per account per year. For a taxpayer with two UK accounts who has been non-compliant for five years, the theoretical maximum non-wilful FBAR exposure is $100,000.
The Streamlined program eliminates this penalty exposure — but only while it remains available. It closes the moment the IRS initiates contact about the delinquency.
FATCA Data Flow Increases Detection Risk Each Year
UK financial institutions now report account information for US persons to HMRC annually. HMRC passes that data to the IRS. Each year of delay is another year in which the IRS receives account data that is not matched to a corresponding US tax return.
The risk of being identified as a non-filer through this data flow increases with every passing year. Acting through IRS Streamlined Filing Compliance now locks in the penalty-free route before that happens.
Adviser Costs Are Predictable — But Only With the Right Firm
The cost of a Streamlined submission varies significantly between advisers. A generalist accountant who attempts a Streamlined submission without specific expertise may produce an incomplete package, which provides no protection and may ultimately cost more to correct than using a specialist from the outset.
Our related guide on https://www.jungletax.co.uk/ covers the qualifications to look for when choosing an adviser.
What Does IRS Streamlined Filing Compliance Actually Cost in 2026?
Component One — The Specialist Adviser Fee
Specialist adviser fees for a Streamlined Foreign Offshore Procedures submission in 2026 typically range from £1,500 to £5,000 for a straightforward case.
A straightforward case is one where: the client has employment income only; no significant investment portfolio; no offshore fund holdings; no UK ISA income; no trust interests; no PFIC exposure; and the FBAR covers only personal current and savings accounts.
Fees increase as complexity increases. Each of the following factors adds to the scope of work and therefore the fee:
Significant investment income — including dividends, interest, and capital gains from a UK portfolio — requires more detailed return preparation and a more involved foreign tax credit analysis.
UK pension assets — including SIPPs — are subject to assessment under Article 17 of the US-UK treaty and may require Form 8938 reporting.
Self-employment income — including freelance, consultancy, or director’s income — requires preparation of Schedule C and a more complex return.
Multiple foreign financial accounts — particularly when some are business or investment accounts — increase the FBAR scope and the data-collection workload.
A complex non-wilfulness narrative — where the client’s circumstances require more detailed explanation — requires more time to draft correctly.
For an HNW client with investment portfolios, a pension, and multiple accounts, fees of £4,000 to £8,000 or more are typical for the initial submission. This is still a fraction of the potential penalty exposure being resolved.
Component Two — The US Tax and Interest Owed
The second component of the total cost is the actual US tax owed on any previously unreported income, plus statutory interest from the original due date of each return.
For most Americans working in the UK and paying UK income tax in full, this amount is modest. The Foreign Earned Income Exclusion (up to $126,500 in 2024) eliminates US tax on most employment income. The foreign tax credit eliminates or reduces the US tax on investment income and other income categories.
In our experience, the additional US tax across three years for a straightforward UK-based employee is typically between £0 and £2,000. For clients with significant investment income or UK ISA holdings, the liability is still usually modest after the foreign tax credit is applied.
The interest charged on late tax is statutory — it is not a penalty and is not negotiable. It is calculated as the difference between the original due date of each return and the payment date.
What the Total Typically Looks Like
For a straightforward Streamlined submission — a UK-based employee with no significant investment income — the total cost including adviser fees and tax owed is typically between £2,000 and £5,000.
For a more complex submission — an HNW client with a portfolio, a SIPP, and multiple accounts — the total might range from £6,000 to £12,000 or more.
In both cases, the cost needs to be measured against the alternative: the potential FBAR penalty exposure, the IRS investigation risk, and the professional fees that would arise from a reactive rather than proactive approach.
What You Are Paying For — The Specialist Work Behind an IRS Streamlined Filing Compliance Submission
Understanding what a specialist adviser actually does explains why the fee is structured the way it is.
Step one — Eligibility assessment.
The adviser confirms that you meet the non-residency requirement and that your non-compliance was non-wilful. This is not a tick-box exercise — it requires a careful analysis of your residence history and the specific circumstances of the non-compliance.
Step two — Income reconstruction and document gathering.
The adviser works with you to identify every income source for the three return years. This includes employment income, rental income, investment income, pension income, and any other sources. Bank statements, payslips, and investment statements are reviewed.
Step three — Account identification for FBAR purposes.
Every foreign financial account is identified for the six FBAR years. The highest annual balance is established for each account. This requires careful review of account statements — not just the year-end balance.
Step four — Return preparation.
Three years of US federal returns are prepared. The Foreign Earned Income Exclusion and the foreign tax credit are applied to minimize the net US tax liability. All required information returns — including Form 8938 where applicable — are included.
Step five — FBAR preparation and filing.
Six years of FinCEN Form 114 are prepared and filed electronically through the BSA E-Filing System at:
https://bsaefiling.fincen.treas.gov/main.html
Step six — Non-wilfulness narrative drafting.
Form 14653 requires a signed certification and a detailed, specific narrative. The narrative must accurately and persuasively explain the history of non-compliance. A well-drafted narrative is one of the most important elements of the submission.
Step seven — Package assembly, review, and submission.
The complete package — returns, FBARs, Form 14653, and payment — is reviewed for accuracy and completeness before submission. The adviser remains available to respond to any subsequent IRS correspondence.
The HMRC guidance on the UK self-assessment process — which runs alongside the US filing for UK-resident Americans — is published at:
https://www.gov.uk/self-assessment-tax-returns
Case Study — Understanding the Total Cost Before Committing to a Submission
Daniel is a US citizen. He has lived in Bristol for eight years, working as a software engineer.
He discovered his US filing obligation when a colleague mentioned it at a company meeting. His immediate reaction was anxiety — he assumed he owed tens of thousands of dollars and would face large penalties.
He contacted Jungle Tax for a cost assessment before committing to any action.
The initial assessment revealed the following.
Daniel’s UK salary was approximately £65,000 per year. After applying the Foreign Earned Income Exclusion, no US income tax was owed on his employment income for any of the three years.
He held a UK current account, a cash ISA, and a Stocks and Shares ISA. The Stocks and Shares ISA had generated modest investment income — approximately £800 per year in dividends. After the foreign tax credit for UK tax paid, the additional US tax on this income across three years came to approximately $740.
His FBAR covered three accounts across six years. No complex account structures were involved.
The adviser provided a clear fee estimate: £1,800 for the full Streamlined submission, including three years of returns, six years of FBARs, and the non-wilfulness certification.
Total cost to Daniel: £1,800 in adviser fees plus approximately £580 in additional US tax and interest. A total of approximately £2,380.
Daniel had been delaying action for 18 months — during which his FBAR exposure continued to accumulate. He described the actual cost as ‘a fraction of what I imagined’.
He now files annual US returns as part of an ongoing engagement at a fixed annual fee of £650. Contact our IRS Streamlined Filing Compliance team at hello@jungletax.co.uk or 0333-8807974 for a cost assessment of your specific situation.
Common Mistakes to Avoid with IRS Streamlined Filing Compliance Costs
Choosing the Cheapest Adviser Without Checking Their Qualifications
A Streamlined submission prepared incorrectly provides no protection. An incomplete FBAR, a vague non-wilfulness narrative, or missing information returns on the tax return can all undermine the submission.
The cheapest quote is not always the best value. The adviser must hold relevant US tax qualifications — IRS Enrolled Agent status or CPA licensure — and must have specific experience in Streamlined submissions for UK-resident US persons.
Attempting a DIY Submission
The IRS Streamlined program is technically open to self-represented taxpayers. But the non-wilfulness certification, the foreign tax credit calculation, the FBAR highest-balance reporting, and the integration of multiple return years make a DIY submission very difficult to do correctly.
An incorrect DIY submission that the IRS later identifies can result in penalties that significantly exceed the cost of specialist advice. The IRS Streamlined requirements are published in full at:
https://www.irs.gov/individuals/international-taxpayers/streamlined-filing-compliance-procedures
Not Claiming the Foreign Earned Income Exclusion
A Streamlined submission that omits the Foreign Earned Income Exclusion overstates the US tax liability. This is the most common error in returns prepared by advisers who are not US-UK specialists.
The exclusion must be claimed on Form 2555 — it does not apply automatically. For most UK-based Americans, it eliminates most US tax liability and significantly reduces the total cost of the submission.
Using FBAR Year-End Balances Instead of Peak Balances
The FBAR requires the highest balance in each account during the calendar year — not the year-end balance.
If the year-end balance is lower than the peak balance — for example, because a bonus was paid in and then spent — using the year-end figure understates the required disclosure. An IRS examiner who later identifies the discrepancy may question whether the submission was complete and accurate.
Underestimating the Time Required to Gather Records
Record gathering is the most time-consuming part of a Streamlined submission. Bank statements, investment reports, payslips, and pension statements for up to six years must be assembled.
Clients who underestimate this step can significantly delay the submission. A specialist adviser provides a clear document checklist at the outset and manages the data gathering process to keep the submission on track.
How Jungle Tax Can Help — Specialist IRS Streamlined Filing Compliance for Americans in the UK
Jungle Tax is a specialist US-UK cross-border tax advisory firm. Our team includes IRS Enrolled Agents and UK-qualified tax practitioners with specific experience in the IRS Streamlined Filing Compliance Procedures.
We provide a clear cost assessment at the outset of every engagement. We do not charge for the initial consultation. We tell you — before you commit — what the adviser fee will be, what the likely US tax liability is, and what the total cost of the submission is expected to be.
In most cases, clients find the total cost is significantly lower than they anticipated. We apply every available relief — the Foreign Earned Income Exclusion, the foreign tax credit, and any other applicable deductions — to minimize the net US tax on the catch-up returns.
You can find further information on our page at https://www.jungletax.co.uk/, or read our detailed guide to IRS Streamlined Filing Compliance for Americans abroad.
If you want to understand the cost of your specific situation before committing to any action, contact our team at hello@jungletax.co.uk or call 0333-8807974 today.
Conclusion
The total cost of an IRS Streamlined Filing Compliance submission is typically far lower than most Americans in the UK expect.
Three points from this guide matter most.
First, the specialist adviser fee for a straightforward submission typically ranges from £1,500 to £5,000. More complex cases cost more — but the fee should always be measured against the penalty exposure being resolved.
Second, the additional US tax owed is usually modest for UK-based employees — often between £0 and £2,000 after the Foreign Earned Income Exclusion and the foreign tax credit are applied.
Third, the cost of getting it wrong — whether through an incomplete submission or by waiting until the IRS makes contact — consistently exceeds the cost of getting it right the first time with a qualified specialist.
Speak to a Jungle Tax adviser today — contact us at hello@jungletax.co.uk or visit our website https://www.jungletax.co.uk/ to learn more.
FAQs
For a straightforward submission — a UK-based employee with employment income, personal bank accounts, and no significant investment portfolio — specialist adviser fees in 2026 typically range from £1,500 to £3,000. More complex cases — involving investment portfolios, pensions, self-employment income, or multiple account structures — typically range from £3,000 to £8,000 or more. The fee covers eligibility assessment, income reconstruction, preparation of three years of returns and six years of FBARs, drafting the non-wilfulness certification, and submission support. A clear fee estimate should always be provided before you commit to any engagement.
For most Americans living and working in the UK, the additional US tax after the Foreign Earned Income Exclusion and the foreign tax credit is modest — often between £0 and £2,000 across three years. The Foreign Earned Income Exclusion eliminates US tax on up to $126,500 of foreign earned income in 2024. The foreign tax credit offsets UK income tax already paid against any remaining US liability. A residual liability typically arises only on investment income — from ISAs, offshore bonds, or other accounts — that has not been subject to UK income tax at the same rate.
No. The Streamlined Foreign Offshore Procedures carry no miscellaneous offshore penalty for eligible taxpayers. The only amounts due to the IRS are the additional tax on previously unreported income and statutory interest calculated from the original due date of each return. This is the key financial advantage of the foreign track over the domestic track, which imposes a 5 percent miscellaneous offshore penalty on the highest aggregate balance of unreported foreign financial assets. Under the foreign track, the total IRS payment is typically far lower than most taxpayers anticipate.
For almost all taxpayers, yes. The non-wilfulness certification must be accurate and specific — a vague narrative provides little protection and can undermine the entire submission. The foreign tax credit calculation requires detailed knowledge of the IRS income basket rules. The FBAR must report the highest annual balance — not the year-end balance — for each account. An incorrect or incomplete DIY submission provides no Streamlined penalty protection and may result in an IRS examination that costs significantly more to resolve than the original specialist fee.
For a taxpayer with two UK accounts who has been non-compliant for five years, the maximum theoretical non-wilful FBAR penalty exposure is $100,000 — $10,000 per account per year. The Streamlined submission eliminates this exposure for eligible non-wilful filers. Even in a straightforward case with a £5,000 total cost (adviser fee plus tax), the submission resolves potential exposure that is many multiples of its cost. This is why the cost-benefit analysis almost always favors acting under the Streamlined program rather than waiting.