AHR Group has been acquired by Titan Wealth and is now operating as Titan Wealth International

Learn More

Can You Transfer a UK Pension to a 401k as an Expat in the US?

Published on May 16, 2025 • Last updated on May 16, 2025 • About 8 min. read

Author

Nick Roley

Private Wealth Team Director

| Titan Wealth International

If you’re a UK expat residing and working in the US, understanding whether it’s possible to transfer a UK pension to a 401k plan is essential for ensuring financial security in later stages of life.

This article will explore the pension transfer options available to UK expats, including the tax implications and cross-border regulations, to help you optimise your retirement savings while living in the US.

What You Will Learn

  • Can you transfer a UK pension to a 401(k)?
  • Can you transfer a UK pension to a US QROPS?
  • Can you transfer a 401(k) to a UK pension?
  • Should you keep your UK pension in the UK?
  • What are the alternatives to transferring your UK pension to the US?

Can You Transfer a UK Pension to a 401k?

Transferring, or rolling over, a UK pension to a 401(k) directly is not possible, as UK pension schemes and US retirement plans have different tax treatments, regulations, and governing bodies.

A 401(k) is a US employer-sponsored retirement plan that only accepts rollovers from other qualified US retirement accounts, such as other 401(k)s, 403(b)s, and Individual Retirement Accounts (IRAs).

In addition, under UK law, you generally cannot transfer your pension overseas unless the HMRC considers the foreign pension scheme a Qualified Recognised Overseas Pension Scheme (QROPS). Since US employer-sponsored schemes, such as 401(k) plans, do not meet HMRC’s QROPS criteria, you cannot directly transfer a UK pension to US 401(k).

If a pension transfer is made to a foreign scheme that is not a QROPS, HMRC will treat it as an unauthorised payment, subject to severe tax penalties, typically 55% of the transferred amount.

Can You Transfer a UK Pension to a US QROPS?

No, you cannot transfer your UK pension to a QROPS in the US, as HMRC’s list of approved overseas pension schemes does not currently include any US retirement plans. Any attempt to transfer a UK pension into a 401(k), IRA, or similar US retirement plan would be deemed an unauthorised withdrawal and incur substantial penalties.

Can You Transfer a UK Pension to a QROPS Outside of the US?

While technically possible, transferring your pension to a QROPS outside the US while being a US resident will result in a 25% overseas transfer charge (OTC) on the amount transferred.

To avoid the OTC, the QROPS you’re transferring to must be located in your country of residence.

Can You Transfer a 401(k) to a UK Pension?

Transferring a 401(k) to a UK pension if you plan on repatriating to the UK during retirement isn’t possible either. However, if you plan to resume contributions to your US retirement funds while living abroad, rolling over your 401(k) into an IRA may be a viable option. It allows you to continue growing your retirement savings in a tax-efficient manner after relocating from the US.

However, it is crucial to consult with a financial adviser to ensure a smooth rollover process and compliance with US and UK tax regulations. Cross-border financial experts at Titan Wealth International can assess your financial situation, help you understand the US-UK double taxation agreement, and minimise tax liabilities on IRA withdrawals in both jurisdictions.

Can You Keep Your UK Pension in the UK?

There is no legal obligation to transfer your pension from the UK when you move to the US or any other country. As a result, many expats opt to keep their pensions in the UK to avoid the risk of incurring a 25% overseas transfer charge.

By holding the pension in a UK-registered scheme, your funds remain invested under UK pension regulations and continue to grow tax-deferred.

Another advantage of keeping your UK pension in the UK is that, upon reaching age 55, you may be eligible to withdraw up to 25% of your retirement funds as a tax-free lump sum. Due to the US–UK double taxation agreement (DTA), this lump sum may remain tax-free in the US as well.

Any remaining withdrawals from the UK pension, as per the US–UK DTA, will be taxed as regular income in the US.

Disadvantages of Keeping Your UK Pension in the UK

There are some drawbacks to leaving your pension in the UK as a US resident, such as:

  • Currency fluctuations: Your pension is in British pounds, but your withdrawals are in US dollars, so fluctuations in exchange rates can affect the value of your pension income.
  • Limited management: Some UK pension providers may limit or completely disallow professional (or self) management of your fund. They may cease offering financial advice, as well.
  • Restricted investment management: In certain instances, UK pension providers may restrict US residents from making changes to their investments.
  • Limited withdrawal options: Some providers may not allow flexi-access drawdown or 25% tax-free lump sum withdrawals.
  • Potential UK Inheritance Tax (IHT) exposure: If your pension remains in a UK-registered scheme and is not in drawdown at the time of your death, it may be included in your estate for IHT purposes. This could reduce the value passed on to your beneficiaries, especially for larger pension pots.

The decision to retain your pension in the UK is a personal one, but consulting with a pension transfer specialist beforehand is crucial.

They will explain the potential benefits and drawbacks of leaving your funds invested with the UK pension scheme while also suggesting alternative solutions that may offer greater tax efficiency for UK expats residing in the US.

What Are the Alternatives to Transferring Your UK Pension to the US?

The primary alternative for transferring a UK pension to a 401(k) is to move it into an International SIPP (Self-Invested Personal Pension). As international SIPPs are regulated by the Financial Conduct Authority (FCA) and approved by HMRC, transferring your pension won’t trigger OTC or any similar tax penalty.

This pension scheme is specifically designed for expats who wish to maintain control over their retirement savings while benefiting from more flexible investment and withdrawal options.

Note: When selecting an international SIPP, it’s essential to choose a US-compliant provider – ideally one that avoids exposure to Passive Foreign Investment Companies (PFICs) and understands US tax reporting obligations, such as IRS Form 8938 and FBAR. This helps you remain compliant with US tax law and avoid unexpected tax liabilities.

What Are the Benefits of an International SIPP for UK Expats?

Apart from enabling tax-free transfers, international SIPPs offer an array of advantages to UK expats, including:

  1. Pension consolidation
  2. Currency and investment flexibility
  3. Flexible withdrawals
  4. Tax-deferred growth

Pension Consolidation

If you have accumulated several pension pots throughout your career, you can consolidate them into a single international SIPP to streamline the management of your retirement savings.

Consolidating your pension simplifies administration and enables a unified investment strategy. It may also result in substantial cost savings by reducing administrative or management fees associated with each separate pension fund.

Currency and Investment Flexibility

International SIPPs support multi-currency investing. You can hold investments in USD, invest in global markets, and reduce the risk of exchange rate fluctuations affecting the value of your pension fund.

Additionally, international SIPPs offer a wide range of investment options, providing you with greater control over how your retirement savings are invested. You can opt to oversee the investments yourself or appoint an expert to manage your portfolio, ensuring it aligns with your short- and long-term financial objectives and risk tolerance.

Regardless of the management and investment strategy, international SIPPs allow you to invest in a variety of asset classes, including:

Investment Class Description
Shares (domestic and international) Ownership stakes in companies, offering the potential for high returns but with significant volatility and risk of loss
Exchange-traded funds (ETFs) Investment funds tracking (and aiming to outperform) a specific index or sector, providing diversification and a moderate risk-to-reward ratio
Mutual funds Pooled investment vehicles allowing investors to purchase shares in a diversified portfolio managed by professionals, offering lower volatility compared to individual stocks
Bonds Debt securities issued by governments or corporations that pay fixed interest over time
Cash Low-risk, liquid investments, such as money market funds, offering low returns but high stability

Flexible Withdrawals

An international SIPP allows you to take advantage of the UK’s pension regulations while maintaining flexibility in retirement planning. Upon reaching retirement age, you can withdraw funds as needed, depending on your current financial situation.

This flexibility is particularly beneficial for tax planning, especially for US taxpayers. By strategically structuring your pension withdrawals, you can manage your overall tax liability more efficiently and remain within the desired tax bracket.

Tax-Deferred Growth

While your funds are invested in an international SIPP, they grow tax-deferred. Under the UK–US double taxation treaty, the UK pension is generally treated as a foreign retirement plan, meaning your annual pension growth is not subject to US tax.

Taxation occurs only when you begin taking distributions. In most cases, only the US will impose taxes on those withdrawals due to the UK–US DTA provisions.

International SIPPs’ tax-deferred growth mirrors the deferral benefit of a 401(k). Both retirement plans enable you to defer taxes on your retirement savings until you begin withdrawing the funds.

How To Transfer UK Pension to an International SIPP?

Transferring your UK pension to an international SIPP as an expat in the US is straightforward, and it typically involves the following steps:

  1. Understand your current pension scheme: Before transferring, understand the terms, fees, and potential benefits you may lose.
  2. Research SIPPs: Evaluate the features, risks, and benefits of an international SIPP to ensure it meets your needs.
  3. Hire a pension transfer specialist: Consult a pension transfer specialist to help you understand legal requirements and tax implications, prepare the necessary paperwork, or manage the entire process on your behalf.
  4. Choose a provider and apply: Compare SIPP providers to identify the one that best fits your retirement goals and apply for the transfer.
  5. Decide on the investment strategy: Select an investment strategy that aligns with your financial objectives, preferably with expert guidance.

Are International SIPPs Equivalent to 401k Plans?

While international SIPPs and 401(k) plans share similarities, such as being tax-advantaged retirement accounts, they are not equivalent due to several key differences:

Criterion International SIPP 401(k)
Withdrawal eligibility age 55 (57 in 2028) 59 ½
Early withdrawal penalty Up to 55% of the withdrawn amount 10% on the withdrawn amount, plus income taxes
Annual contribution limits £60,000 $23,500 (plus an additional catch-up limit of $7,500)
Investment flexibility High; a broad range of investments Limited; typically employer-selected investment options
Personal loans Unavailable Up to 50% of the account balance or $50,000—whichever is less

Key Takeaway

If you’re considering retiring in the US as a UK expat, understanding how to transfer or access your UK pension is crucial for your long-term financial security.

In this guide, we’ve outlined why direct transfers or rollovers of UK pensions into 401(k) plans are not possible. We’ve also explored other options, such as transfers to QROPS, and explained why they aren’t viable.

Finally, we’ve discussed the alternative option of transferring your UK pension to an international SIPP, highlighting the numerous benefits such a transfer provides for UK expats.

To ensure your pension transfer to an international SIPP is successful, it’s advisable to consult a financial adviser. Our experts at Titan Wealth International can assist you in selecting a SIPP provider, completing and filing the necessary paperwork, and developing a personalised investment strategy, helping you preserve and grow your pension fund as an expat.

4273

Author

Nick Roley

Private Wealth Team Director

Nick Roley is a Private Wealth Team Director and dual-qualified financial adviser in both the UK and the US. A Chartered Financial Planner under the CII—widely regarded as the Gold Standard in financial planning—he specialises in cross-border financial planning, pension advice, and tax-efficient wealth management. As a US SEC-registered investment adviser with a Series 65 qualification, Nick provides expert guidance to expatriates in the US and American citizens living abroad. Based in the Middle East, he writes on wealth management topics to help clients navigate complex international financial landscapes.

Book a Call