By Jonathan Laws, Senior Independent Financial Adviser (ACA, Ch.FCSI), Cameron James
Cross-border pension and retirement planning for clients living outside the United Kingdom.
If you are one of the many Nucleus group SIPP overseas residents who holds a UK Self-Invested Personal Pension with James Hay, Curtis Banks, Talbot and Muir, or directly through the Nucleus SIPP, and you live outside the United Kingdom, your pension arrangement may no longer fit your circumstances on the same terms it once did. The four brands now sit inside the Nucleus Financial Platforms group, one of the UK’s largest retirement-focused platform groups, and the operational and regulatory pressures of servicing non-UK residents, in particular US-connected clients, are leading to escalating restrictions across the entire group.
This guide explains what is happening across the Nucleus group’s SIPP products, what it means for overseas residents and US-connected individuals, and how to navigate your options with fully compliant, cross-border advice. It draws on direct client work with each of the four platforms. If you have already received notice from your provider, or you are simply trying to understand whether your current arrangement remains the right fit, this article should give you a clear picture of the choices available.
CAMERON JAMES
Your UK SIPP may be quietly working against you abroad.
If you hold a James Hay, Curtis Banks, Talbot and Muir, or Nucleus SIPP and live overseas, a Cameron James adviser will review whether it still suits you and set out your options.
Jonathan Laws, Senior IFA, Cameron James
“The Nucleus group is a strong UK platform group, but the reality is that it has been built primarily for UK residents working with UK advisers. We see clients almost every week who hold a James Hay or Curtis Banks SIPP, who moved abroad five or ten years ago, and who have only just realised that the platform restrictions are starting to bite. Investment changes blocked. Adviser charges renegotiated. Transfers in refused. Some of those clients are still UK tax residents on paper but have lived in France, Spain or the United States for years.”
“What we do at Cameron James is sit down with the client, look at exactly what they hold, what their tax position is in their country of residence, and what the right structural answer looks like. Sometimes that is a transfer to an International SIPP. Sometimes it is leaving the existing arrangement in place and tightening the investment strategy. The platform decision is downstream of the planning question, not the other way around.”
Understanding the Nucleus Financial Platforms Group
The Nucleus Financial Platforms group is today the parent organisation of several distinct brands, each with its own SIPP history, product range, and client base. If you hold a pension with any of the four brands set out below, you are effectively a Nucleus group client. The group now reports approximately £110 billion in assets under administration and 251,000 customers across its platforms, making it one of the largest retirement-focused adviser platform groups in the United Kingdom.
James Hay: The Original UK SIPP Pioneer
James Hay Partnership was founded in 1979 and holds the distinction of launching the very first Self-Invested Personal Pension in the UK. It has operated in the SIPP market for over 45 years, was acquired by IFG Group in 2010, and merged with the Nucleus Financial platform in 2021 to form the wider group. James Hay currently offers two principal SIPP products: the Partnership SIPP and the Modular iPlan, also known as the Modular iSIPP. These allow access to a wide range of investments, including funds, commercial property, stockbroker accounts, and model portfolios.
| September 2025 restriction James Hay confirmed that, with effect from September 2025, it will no longer accept new SIPP applications from individuals who are not UK resident at the time of application. This restriction applies to both the Partnership SIPP and the Modular iPlan. Existing clients who opened their SIPP before this date can typically retain their plan, but may face ongoing restrictions, including no tax relief on new contributions, limitations on certain collective investments (particularly for US residents), and enhanced KYC and residency verification requirements. We have written separately about the September 2025 James Hay restriction; you can read that detailed article on cjfinance.co.uk for the background and our full adviser view. |
The Nucleus SIPP: The Platform’s Own Product
The Nucleus SIPP is the proprietary SIPP product offered through the Nucleus Wrap platform, the financial planning platform originally founded in 2006 that now serves smaller and medium-sized adviser firms. The Nucleus SIPP offers tax-efficient accumulation and decumulation through a flexible, low-cost wrapper, with pre-funded basic rate tax relief and access to a broad range of investment options, including funds, equities, and bonds.
Like the James Hay products, the Nucleus SIPP is designed for UK residents, and the platform’s service model is built around UK-based financial advisers. Non-UK residents, and US persons in particular, are not the target market and face the same escalating restrictions and investment limitations seen across the wider group.
Curtis Banks: One of the UK’s Largest SIPP Administrators
Curtis Banks, whose acquisition by the Nucleus group completed on 26 September 2023, is one of the UK’s largest independent SIPP administrators. It also operates through several subsidiary trustee companies, all trading under the Curtis Banks name, and administers the Curtis Banks SIPP and Your Future SIPP products, alongside the Suffolk Life Pensions SIPP product range that came with the earlier Suffolk Life acquisition.
Curtis Banks has a specific section of its target market documentation dealing with overseas residents and US nationals. While it acknowledges that its SIPP may be appropriate in some overseas circumstances, the rules are highly restrictive.
• Applications from overseas residents or US nationals living in the UK must be submitted on paper, accompanied by an additional Overseas Client questionnaire.
• The plan must be advised, and the adviser must be UK-based and FCA-regulated, a requirement that itself creates a compliance gap for US residents, which we explain below.
• Contributions can only be made by UK relevant individuals, or those who have been UK residents or had UK taxable earnings within the last five years.
• Any necessary US tax reporting must be handled entirely by the client’s own accountant, adviser, or investment manager, not by Curtis Banks.
In short, Curtis Banks can technically accommodate some overseas cases on a restricted basis, but the structure is not designed for globally mobile clients, and the ongoing operational and compliance burden falls heavily on the client.
Talbot and Muir: SIPP and SSAS Specialists Within the Group
Talbot and Muir is a SIPP and SSAS specialist that became part of the Nucleus group through the Curtis Banks acquisition. It operates through a network of trustee entities, including Talbot and Muir Limited, MYSIPP Trustees Limited, Pension Partnership SIPP Trustees Limited, and several others, and has a particular specialism in commercial property within pension structures.
Talbot and Muir’s SIPP products are similarly designed for the UK market. For overseas residents, and especially US persons, the same structural issues apply. The platform is adviser-led and primarily supports UK-based advisers, which means that compliant advice for non-UK residents requires a separate regulatory framework that Talbot and Muir itself does not provide.
Why Overseas Residents Face Growing SIPP Restrictions
The restrictions now emerging across the Nucleus group’s SIPP products are not unique to this group. They reflect a broader, structural shift in how UK pension platforms deal with non-UK resident clients. Understanding why this is happening helps clarify what your options are, and why acting early matters.
Post-Brexit Loss of EU Passporting Rights
Before the United Kingdom left the European Union, UK-authorised financial services firms could legally provide services to clients in EEA member states under EU passporting rules. That changed on 31 December 2020. UK platforms now have no automatic right to service retail clients resident in France, Germany, Spain, Portugal, the Netherlands, or any other EEA country. Servicing such clients now requires either a local presence in the EEA, or reliance on narrow, jurisdiction-specific exemptions, an overhead that most UK retail platforms have decided is not commercially justified.
This is why Nucleus group platforms, like AJ Bell Investcentre, Fidelity, Hargreaves Lansdown, and Interactive Investor before them, have progressively tightened their residency rules for EEA residents.
The Unique Complexity of US Persons
For US citizens, Green Card holders, and US tax residents, the situation is even more acute. The United States applies worldwide taxation to its citizens and residents, regardless of where they live. This creates several layers of reporting complexity that UK-only SIPP platforms are not equipped, or willing, to manage.
• FATCA (Foreign Account Tax Compliance Act): UK financial institutions must report US person account details to HMRC, which passes them to the IRS. Most UK platforms are FATCA-registered, but the administrative burden is significant.
• FBAR (Report of Foreign Bank and Financial Accounts): US persons must report foreign financial accounts, including SIPPs, to FinCEN if aggregate balances exceed $10,000. This is the client’s responsibility, not the platform’s, but it raises due diligence expectations.
• Investment suitability: PFIC rules generally do not apply to investments held inside a qualifying UK pension under the US-UK Double Taxation Agreement and Section 1298(f) of the IRS Code, so a SIPP does not create PFIC exposure during accumulation. US persons do, however, remain subject to practical restrictions on which investments are suitable, and many standard UK-domiciled collective investments such as OEICs, unit trusts, and non-US ETFs become problematic if ever held outside the pension wrapper. Building a properly structured, US-compliant portfolio requires specialist advice that most UK-only platforms are not equipped to provide.
• SEC authorisation requirements: Any investment adviser who provides advice to US persons must either be registered with the Securities and Exchange Commission or qualify for a specific exemption. UK-only FCA-authorised advisers cannot lawfully provide investment advice to US residents on a regular basis.
The net effect is that servicing US persons within a standard UK SIPP structure requires specialist infrastructure that the Nucleus group’s retail platforms, built for the UK advisory market, do not provide.
| Why this matters more than it might seem A pension arrangement that was perfectly appropriate when you lived in the UK can become legally problematic, financially inefficient, or operationally impossible once you move abroad. The restrictions being introduced by the Nucleus group’s platforms are not arbitrary; they are driven by genuine legal and regulatory risk. Ignoring them, or assuming that nothing will change for existing clients, is a risk that compounds over time. |
What This Means in Practice: Common Situations We See
If you hold a SIPP with James Hay, Curtis Banks, Talbot and Muir, or through the Nucleus platform, and you live outside the UK, your situation likely falls into one of the following categories.
You Are a UK National Living in Europe
Post-Brexit, UK platforms can no longer freely service EEA residents. If you live in France, Spain, Germany, Portugal, Italy, or elsewhere in the EU, you may already be experiencing restrictions on contributions, investment changes, or new product applications. In many cases, platforms will allow existing plans to remain open passively, but with limited service and no ability to transfer other pensions in.
The practical effect is a pension that becomes increasingly frozen in time, unable to evolve with your retirement planning needs, and without access to specialist advice from an adviser who is legally permitted to advise you in your country of residence.
You Are a US Citizen, Green Card Holder, or US Tax Resident
This is the highest-complexity scenario. US persons face all of the EEA-related issues above, plus the additional layers of FATCA, FBAR, the SEC authorisation requirement for any adviser who wishes to provide them with investment advice, and the practical challenge of ensuring their pension is invested in a way that is suitable and compliant given their US tax position.
James Hay’s September 2025 restriction on new non-UK resident applications means you cannot open a James Hay SIPP or transfer other pensions into it. Curtis Banks will consider overseas and US cases on a restricted basis, but with significant paperwork requirements and a structure that places the compliance burden on the client. Neither the Nucleus SIPP nor Talbot and Muir’s products are marketed or structured for US person use.
Critically, the Curtis Banks requirement that any advice be provided by a UK-based, FCA-regulated adviser creates a structural compliance gap: UK-only advisers cannot lawfully provide regulated investment advice to US tax residents in most circumstances. This means that even where the platform technically accepts the account, the advice layer required to open and manage it may not be legally available.
You Are a US-Connected Individual With a Legacy UK Pension
Many clients who contact Cameron James have held their SIPP for years, sometimes decades, before moving to the United States or acquiring US person status through marriage, a Green Card, or naturalisation. Their pension has not changed; their circumstances have.
Legacy pensions in this situation often contain investments that are not structured with a US tax position in mind. Withdrawal strategies may not have been coordinated with US tax obligations, and the platform may be approaching a point at which continued administration of a US person’s account is no longer viable. Reviewing the pension, its investment composition, drawdown structure, and FBAR and FATCA reporting status is an important first step, even before any transfer decision is made.
Your Options: What You Can Do
If you recognise your situation in any of the above, there are several paths forward. The right option depends on your country of residence, your tax status, the value and composition of your pension, and your longer-term retirement objectives.
Option 1: Retain Your Existing SIPP
In some cases, retaining your existing Nucleus group SIPP is the most appropriate short-term course of action. This may be true if you are close to returning to the UK, if your pension is already invested in US-compliant assets, or if the costs and disruption of a transfer outweigh the benefits at this stage.
However, retaining the existing SIPP does not mean doing nothing. A thorough review should confirm that FBAR and FATCA reporting obligations are being met, assess whether the investment portfolio is structured appropriately for a US person’s tax position, understand what drawdown options are available given your residency, and confirm that your adviser is legally permitted to advise you in your country of residence.
Option 2: Transfer to an International SIPP
For most non-UK residents, and especially US persons, transferring to an International SIPP is the most practical and appropriate solution. An International SIPP is structurally identical to a standard UK SIPP: it is registered with HMRC, regulated by the FCA, and subject to the same pension rules around contributions, drawdown, and death benefits. The difference is that it is specifically designed for non-UK residents. Key advantages for overseas residents include the following.
• Multi-currency investment and drawdown capability in GBP, USD, EUR, and other currencies.
• Direct payment to overseas bank accounts, removing the need to repatriate income through UK accounts.
• NT tax code processing to allow gross payments under the relevant articles of the UK-US Double Taxation Agreement.
• Portfolios structured to be appropriate for US persons, with investment selection that accounts for the client’s US tax position.
• Advice delivered through a locally authorised adviser, providing compliant advice in your country of residence.
• Full FCA regulation and FSCS protection: the pension remains a UK pension.
• The ability to consolidate multiple legacy UK pensions into one structure.
Option 3: QROPS (Usually Not Appropriate, Especially for US Residents)
Qualifying Recognised Overseas Pension Schemes, or QROPS, are sometimes marketed to UK nationals abroad as an alternative to SIPPs. However, for US residents, QROPS are almost always inappropriate. Most QROPS are based in offshore jurisdictions such as Malta, Gibraltar, or the Isle of Man. The IRS typically classifies QROPS as foreign trusts, which creates complex FATCA reporting obligations and often triggers the 25 per cent Overseas Transfer Charge on the transfer. Most offshore QROPS trustees refuse US residents due to compliance risk. Cameron James does not recommend QROPS for US residents in the vast majority of cases.
How Cameron James Can Help
Cameron James is a specialist cross-border financial planning firm advising clients across the United States, the United Kingdom, Europe, and globally. Cameron James Ltd is an FCA-authorised firm, and its advisers hold individual regulatory authorisations relevant to each client’s country of residence, including individual SEC authorisation when advising US persons and individual EU or EEA authorisations where applicable. This adviser-level authorisation is what makes compliant advice possible across these jurisdictions, where a UK-only adviser often cannot lawfully act.
Holistic, Cross-Border Financial Planning
At Cameron James, the approach is not simply to manage pension transfers. Retirement planning for internationally mobile clients requires a genuinely holistic approach, one that treats your pension as one component of a broader financial picture. For clients holding Nucleus group SIPPs, the advice process typically encompasses the following.
• A full review of the existing SIPP structure, investment composition, and suitability for a US person’s tax position.
• An assessment of whether the current platform arrangement remains viable and appropriate.
• NT tax code application and management, where applicable under the UK-US Double Taxation Agreement.
• International SIPP selection and transfer management, from discharge forms to trustee liaison.
• Portfolio construction using globally diversified, low-cost ETFs and US-compliant funds.
• Drawdown strategy modelling, coordinated with US marginal tax brackets and Foreign Tax Credit planning.
• FBAR and FATCA disclosure review, working alongside your US accountant or CPA.
• UK State Pension entitlement review, including the value of voluntary National Insurance contributions.
• US Social Security planning, including assessment of the Windfall Elimination Provision repeal under the Social Security Fairness Act.
• IRA and 401(k) coordination with UK pension income in retirement.
• Cross-border inheritance and estate planning, covering both UK Inheritance Tax (including the April 2027 pension IHT changes) and US estate tax considerations.
• Cashflow modelling, the foundation of the advice process, mapping your assets, income, and expenditure in retirement across both jurisdictions.
This is what Cameron James calls full-fat financial planning: a comprehensive, end-to-end service that addresses not just where your pension sits today, but how your entire financial life works across borders, both now and in retirement.
What This Means for You
If you have come to this article because you hold a James Hay, Curtis Banks, Talbot and Muir, or Nucleus SIPP and you live outside the UK, the practical takeaway is that your current arrangement may be perfectly serviceable, or it may already be limiting your options in ways you have not yet fully felt. The Nucleus group is a legitimate, well-regulated UK platform group; the issue is not the quality of the platforms but the structural mismatch between products designed for UK residents and the cross-border lives that many SIPP holders now lead.
The right answer is rarely a panicked transfer, and it is rarely complete inaction. It is a properly structured review that looks at where you live now, how you are taxed there, what your pension is invested in, who is allowed to advise you, and what the next ten or twenty years of your retirement plan need to look like. The platform decision sits at the end of that review, not at the beginning.
Speak to a Cameron James Adviser About Your Nucleus Group SIPP
Cameron James offers an initial consultation in which we will review your existing pension arrangements, your residency and tax status, and the options available to you, giving you a clear picture of your position and what action, if any, is required. We work with clients holding James Hay, Curtis Banks, Talbot and Muir, and Nucleus SIPPs across the United States, the United Kingdom, Europe, and beyond.
Get a clear picture before you make any move.
An initial review covers your pension, your residency and tax position, and the action, if any, that actually makes sense for you.
| Book a consultation Speak to a Cameron James adviser about your James Hay, Curtis Banks, Talbot and Muir, or Nucleus SIPP, and what your options are as a non-UK or US-connected resident. |
Frequently Asked Questions: Nucleus Group SIPPs and Overseas Residents
I hold a James Hay SIPP and live in the United States. What should I do?
You should seek a review from a cross-border adviser who is individually authorised in both the United Kingdom and the United States as soon as possible. From September 2025, James Hay no longer accepts new SIPP business from non-UK residents. Existing clients can generally retain their plans but face investment restrictions, particularly around collective investments, and cannot transfer other pensions in. A compliant International SIPP transfer is likely to be the most appropriate solution for most US residents in this situation.
Can I transfer my Curtis Banks SIPP to another provider as a US resident?
Yes. A SIPP-to-SIPP transfer is a tax-free transfer between HMRC-registered pension schemes and does not trigger any UK or US tax charge. Cameron James can manage the transfer process on your behalf, from provider selection and Letter of Authority submission to trustee liaison and discharge form completion. The key is ensuring the receiving provider, and the advice structure around it, are fully compliant under both UK and US regulation.
I hold a Talbot and Muir SIPP with commercial property inside it. What are my options?
Commercial property within a SIPP complicates any transfer. An in-specie transfer, where the property itself is transferred rather than sold, is possible in some cases but requires cooperation from both the ceding and receiving trustees and often takes longer than a cash transfer. In some circumstances, the property may need to be sold before a transfer can proceed. Cameron James can assess your specific situation and advise on the most cost-efficient route forward. It is important to take advice before making any decisions, as forced sales can crystallise tax events or result in below-market valuations.
Does holding a Nucleus group SIPP count as a foreign financial account for FBAR purposes?
Yes. A UK SIPP is a foreign financial account for FBAR purposes, and must be reported to FinCEN annually on FinCEN Form 114 if the aggregate value of your foreign financial accounts exceeds $10,000 at any point during the year. The maximum value during the reporting year must be reported. Cameron James works alongside your US CPA or tax adviser to ensure your FBAR and FATCA obligations are properly managed, but you should ensure this reporting is up to date regardless of whether you transfer your SIPP.
Do PFIC rules apply to the investments inside my Nucleus group SIPP?
Generally no. Under the US-UK Double Taxation Agreement and the IRS’s finalised PFIC regulations under Section 1298(f), a UK SIPP operated principally to provide retirement benefits is treated as outside the scope of PFIC reporting requirements during the accumulation phase, on the basis that income is only taxable upon distribution to the member. As a general matter, you are not required to file Form 8621 for investments held within your SIPP. PFIC rules become relevant only if you hold UK-domiciled collective investments outside the pension wrapper, for example in a general investment account or an ISA held as a US person, which is a separate consideration from your SIPP. Specialist US tax advice should be sought on any specific investment selection.
I live in Europe, not the United States. Does any of this apply to me?
Yes. Post-Brexit, UK platforms, including those in the Nucleus group, lost their MiFID II passporting rights and cannot freely service retail clients resident in EEA member states. If you live in France, Spain, Portugal, Germany, or elsewhere in the European Union, you are likely already experiencing or about to experience restrictions on your ability to make investment changes, contribute to your SIPP, or transfer other pensions in. An International SIPP, combined with advice from a cross-border firm with the appropriate permissions, is generally the appropriate solution.
How long does a Nucleus group SIPP transfer take?
Typically, between four and twelve weeks, depending on the complexity of the underlying holdings, whether an in-specie transfer is involved, and how quickly the ceding platform responds to transfer requests. Cash transfers with liquid holdings are generally the fastest. Cameron James manages the transfer process on your behalf and maintains regular communication with all parties to minimise delays.
Is the Nucleus group connected to Cameron James?
No. References to James Hay, Curtis Banks, Talbot and Muir, and Nucleus Financial Platforms in this article are for identification purposes only. Cameron James is an independent firm and is not affiliated with, endorsed by, or acting on behalf of any of these organisations. Cameron James does not receive commission or referral payments from these platforms in connection with client work.
Disclaimer
This article is for informational purposes only and does not constitute financial, tax, or legal advice. Always consult a qualified and regulated financial adviser before making any decisions about your pension or financial planning arrangements. Tax laws are complex and vary by individual circumstance.
Cameron James does not offer tax advice. References to James Hay, Curtis Banks, Talbot and Muir, and Nucleus Financial Platforms are for identification purposes only and reflect publicly available information current as of 2025/2026. Platform restrictions, charges, and product features are subject to change; always refer to the provider’s current documentation before proceeding.
Cameron James is an independent firm and is not affiliated with, endorsed by, or acting on behalf of any of these organisations, and does not receive commission or referral payments from them in connection with client work. Past performance is not a guide to future returns. The value of pension investments can fall as well as rise, and you may get back less than you invest. Non-UK residents should be aware that UK pension rules interact with local tax laws and reporting obligations in their country of residence. Independent tax advice in your country of residence is essential before making any decision in relation to UK pension assets. For US-connected individuals, this includes consideration of FBAR, FATCA, and the UK-US Double Taxation Agreement.
