Introduction Not every adviser who offers Streamlined Foreign Filing Offshore Procedures services is qualified to prepare them. Any accountant can advertise US expat services. Far fewer hold the IRS Enrolled Agent credential that permits them to sign a US federal return as a paid preparer or represent a client before the IRS. An incomplete submission, […]
Not every adviser who offers Streamlined Foreign Filing Offshore Procedures services is qualified to prepare them. Any accountant can advertise US expat services. Far fewer hold the IRS Enrolled Agent credential that permits them to sign a US federal return as a paid preparer or represent a client before the IRS. An incomplete submission, such as one that depends on a one-paragraph non-wilfulness narrative, omits Form 8621 for investment funds, or uses year-end FBAR balances rather than peak balances, does not obtain the full penalty waiver. Correcting a poorly prepared submission typically costs more than doing it correctly from the start.
This guide explains how to evaluate a Streamlined Foreign Filing Offshore Procedures specialist before you engage one. It covers the qualifications to look for, the green and red flags that reveal actual expertise, and a real case study showing what goes wrong when the wrong adviser is chosen. Visit our advisory service:
https://www.jungletax.co.uk/services/us-uk-tax/
For non-willing non-filers who reside outside of the United States, the IRS offers a voluntary compliance option called Streamlined Foreign Filing Offshore Procedures (SFOP). It requires three years of US federal income tax returns and six years of FBARs. All FBAR penalties are waived for a complete, accurate, and genuinely non-wilful submission.
Each of the program’s three components calls for a particular set of skills. First, the FBAR — peak balance calculation from monthly statements, every qualifying account included. Second, the federal returns — FTC optimization, Form 8621 for every non-US fund, and correct income allocation. Third, the non-wilfulness certification — specific to the taxpayer’s facts, signed under penalties of perjury.
The IRS guidance on the Streamlined Filing Compliance Procedures is at:
https://www.irs.gov/individuals/international-taxpayers/streamlined-filing-compliance-procedures
The Streamlined Foreign Filing Offshore Procedures penalty waiver depends entirely on the completeness and accuracy of the submission. A missing Form 8621 leaves the return open indefinitely. An understated FBAR contradicts IRS FATCA data. A generic non-wilfulness narrative attracts IRS scrutiny. All three errors are the result of the same cause, an inexperienced advisor.
Following the Bittner v United States ruling in 2023, the IRS reviews non-wilfulness certifications more carefully. A generic statement — ‘I did not know about the requirement’ — is no longer sufficient. The certification must address the specific facts of the taxpayer’s situation. Advisers who use template certifications across multiple clients are creating risk, not reducing it.
All non-US funds, including UCITS funds within an ISA or SIPP, must file Form 8621. Omitting it leaves the entire return open with an indefinite statute of limitations. Most UK accountants without US specialist training do not know Form 8621 exists. If your adviser does not ask about your investment portfolio at the initial assessment, they will produce an incomplete submission.
You can find our IRS Streamlined Filing Compliance FBAR and FATCA reporting guidance at:
https://www.jungletax.co.uk/jungle-tax-news-updates/irs-streamlined-filing-compliance-fbar-fatca/
UK accountancy qualifications — ACA, ACCA, CIMA — do not permit the holder to sign a US federal return as a paid preparer. An adviser without an IRS Enrolled Agent or US CPA credential cannot represent the client before the IRS if the submission is examined. This is not a minor procedural point — it has direct consequences for the client if anything goes wrong.
The single most important green flag is a verifiable IRS Enrolled Agent number. An EA has passed the three-part IRS examination and holds unlimited rights to represent clients before the IRS. Verify independently using the IRS online EA directory before engaging any adviser.
https://irs.treasury.gov/rpo/rpo.jsf
A genuine Streamlined Foreign Filing Offshore Procedures specialist prepares the UK self-assessment alongside the US return — using consistent income figures for the FTC calculation. They also ask specifically about investments, ISAs, and SIPPs at the initial assessment — identifying every PFIC position before any return is prepared. If neither topic comes up at the initial consultation, move on.
The FBAR requires peak balances — the maximum account value at any point during the calendar year. For the whole six-year FBAR term, monthly statements are needed. When an adviser requests only year-end statements, the FBAR is prepared using inaccurate numbers inconsistent with the IRS’s FATCA information for the same accounts.
A professional specialist issues a written engagement letter before any work begins — specifying the exact scope, fixed fee, and timeline. A verbal estimate or a vague, open-ended fee arrangement is a warning sign, not a sign of flexibility.
If the adviser cannot provide a verifiable IRS Enrolled Agent number or a US CPA license number, they are not a qualified US tax practitioner. Always verify before paying any deposit — not after the work has started.
No adviser can guarantee that a Streamlined Foreign Filing Offshore Procedures submission will be accepted. The IRS reviews submissions and can open an examination if the non-wilfulness certification is not credible. Any adviser who promises guaranteed acceptance is misrepresenting how the program works.
If the initial consultation does not include questions about investments, ISAs, or SIPPs, the adviser will prepare a submission omitting Form 8621. This is the most common and most expensive error in SFOP submissions prepared by non-specialists.
Year-end statements do not show peak balances. An adviser who accepts year-end statements for the FBAR is producing inaccurate filings. This is a material error — not a minor technicality —, and it contradicts the IRS’s FATCA data for the same accounts.
The IRS Offshore Voluntary Disclosure Program was discontinued on 28 September 2018. Any adviser who mentions the OVDP as a current option is working from outdated information — a clear signal that their knowledge of the compliance landscape is out of date.
Sophie is a US citizen living in Leeds. She had seven years of non-compliance and wanted to resolve it. She found a UK accountancy firm advertising US expat services online. The fee was £750 — significantly lower than the specialist quotes she had received. She engaged them without checking credentials.
The firm prepared three years of federal returns and six FBARs. They used year-end bank statements rather than monthly statements for the FBAR. They did not ask about Sophie’s ISA, which held two UCITS equity funds. No Form 8621 was filed for either fund. The non-wilfulness narrative was two sentences long — a generic statement that Sophie had not known about the filing requirement.
Eighteen months later, the IRS sent a correspondence inquiry. Two issues were flagged. First, the FBAR balances appeared inconsistent with the FATCA account data the IRS held for Sophie’s accounts because the FBARs used year-end balances rather than peak balances. Second, the IRS noted that the returns lacked Form 8621 for the ISA fund positions — leaving both return years open indefinitely under the statute of limitations.
Sophie engaged Jungle Tax to remediate. Corrected FBARs were prepared using monthly statements and accurate peak balances. Supplemental Form 8621 filings were submitted with amended returns for both affected years. A revised non-wilfulness narrative was drafted—specific to Sophie’s circumstances, her move to Leeds, and the absence of any prior professional advice regarding the US filing obligation.
The remediation adviser fee was £2,800 — in addition to the original £750. The total cost of the engagement reached £3,550. A correctly prepared submission from a qualified specialist would have cost approximately £1,800. The savings from choosing the cheaper adviser cost Sophie £1,750 — plus eighteen months of stress and IRS correspondence.
The penalty waiver was ultimately obtained after the amended submission resolved the omissions. But the process took nearly two years from the original filing date, compared to the three to four months a qualified submission takes from start to acceptance.
An incomplete Streamlined Foreign Filing Offshore Procedures submission does not obtain the penalty waiver. The adviser fee is not the correct basis for comparison — the quality and completeness of the submission is. Remediation costs consistently exceed the original savings from choosing a cheaper, less qualified adviser.
An IRS Enrolled Agent credential can be verified in under five minutes using the IRS online directory. Many clients engage advisers without checking, instead relying on claims on websites. Always verify independently before paying any deposit.
A UK accountancy qualification does not confer the right to sign a US federal return as a paid preparer. If the submission is examined, a UK-only accountant cannot represent the client before the IRS. A correctly prepared Streamlined Foreign Filing Offshore Procedures submission requires a US-credentialled practitioner who also understands the UK tax system.
The submission resolves historical non-compliance. It does not establish an annual filing program that prevents future gaps. An adviser who does not discuss ongoing compliance as part of the engagement is leaving the most important part undone.
The IRS overview of the Streamlined procedures is at:
https://www.irs.gov/individuals/international-taxpayers/streamlined-filing-compliance-procedures
Jungle Tax is a specialist US-UK cross-border tax advisory firm with IRS Enrolled Agents and UK-qualified tax practitioners on the team. We assess willfulness before recommending any route, prepare both the UK self-assessment and US federal return simultaneously, and review every investment holding for PFIC status. We request monthly statements for the full six-year FBAR period, calculate accurate peak balances, and draft the non-wilfulness narrative specifically for each client’s circumstances.
Read our guide on choosing between the Streamlined program and Voluntary Disclosure:
Choosing the right Streamlined Foreign Filing Offshore Procedures specialist is the most important decision in the catch-up process. An incomplete or inaccurate submission does not qualify for the penalty waiver, and the cost of correction consistently exceeds the original savings from using a cheaper, less-qualified adviser.
Three points matter most. First, verify the EA credential independently before engaging — not after paying a deposit. Second, if the initial consultation does not cover investments, ISAs, SIPPs, and Form 8621, walk away. Third, obtain a written engagement letter with a fixed fee and a complete scope of work before the work begins.
Jungle Tax | mailto:hello@jungletax.co.uk | 0333-8807974 | https://www.jungletax.co.uk
An IRS Enrolled Agent or US CPA — verifiable at irs.treasury.gov/rpo/rpo.jsf. A UK-only accountant cannot sign US returns or represent you before the IRS if your submission is examined.
Search the IRS online EA directory at irs.treasury.gov/rpo/rpo.jsf. Confirms credential status and disciplinary history in under five minutes. Always check before paying any deposit.
Form 8621 is required for every non-US fund (PFIC) — including ISA and SIPP holdings. Missing it leaves the return open indefinitely. A qualified specialist identifies all fund holdings before preparing any return.
The FBAR requires the peak balance — the highest account value at any point in the year. Year-end statements miss earlier peaks. Monthly statements for the full 12 months are required for every account.
Not without a US credential. Without an IRS EA or CPA, a UK accountant cannot sign US returns as a paid preparer or represent you before the IRS if the submission is reviewed.
£1,500–£2,500 for a simple profile. £2,500–£5,000 for moderate complexity. £4,000–£9,000 for complex cases with investments, property, or business interests. Well below these ranges usually means incomplete.
