US Taxation of UK Pensions: A Guide for U.S. Residents Receiving U.K. Pension [2024]

If you're a US resident receiving a UK pension, it's essential to have a clear understanding of how the US tax system treats your UK pension income. The taxation of foreign pensions can be complex, and it's crucial to ensure compliance with US tax laws while optimizing your financial situation. In this article, we will address key questions that individuals in the US receiving a UK pension distribution often have. Our goal is to inform you to make informed decisions, all while highlighting opportunities to potentially avoid US tax on your UK pension.

To watch an in-depth video explaining Is a UK Pension Lump Sum Taxable in The US, Click Here!

Is My UK Pension Taxed in the USA?

The short answer is yes, your UK pension is subject to taxation in the United States. Under domestic US tax law, income within and distributions from a UK pension are treated like any other pension income, and they are generally included in your US income tax return.

Do I Have to Include Growth in My UK Pension on My US Income Tax Return?

It's important to note that the growth within your UK pension is also subject to US taxation. Any investment earnings, dividends, interest, or capital gains that accrue within your UK pension are typically considered taxable income in the United States. This means that not only the initial contributions to your UK pension but also the growth over time can be subject to US taxation.

Can I Withdraw My Pension from the UK If I'm Living in the US?

The ability to withdraw funds from your UK pension while residing in the US largely depends on the terms of your UK pension plan. In general, UK pension schemes allow individuals to access their pension benefits starting at age 55. However, making withdrawals may have tax implications both in the UK and the US.

Furthermore, the IRS may require you to report any pension distributions, even if you do not make immediate withdrawals, on your US tax return. This reporting requirement ensures that the IRS is aware of the income within your UK pension.

Avoidance of US Tax on UK Pensions

For US residents receiving a UK pension, there is a glimmer of hope in the form of the U.S.-U.K. Income Tax Treaty. This treaty contains provisions that allow for the lawful avoidance of US taxation on a specific portion of your UK pension, known as the Pension Commencement Lump Sum (PCLS).

Under Article 17, Paragraph 1(b) of the U.S.-U.K. Income Tax Treaty, this portion of your UK pension is exempt from US taxation. This treaty benefit is referred to as the "reciprocal pension exemption." It means that if a particular type of pension distribution is exempt from tax in the UK, the US is legally obligated to recognize that exemption. In the case of the UK, the first 25% lump withdrawal is exempt from taxation, and the US is bound by the treaty to honor this exemption.

Additionally, Article 1, Paragraph 5(a) of the treaty specifically exempts the Article 17(1)(b) reciprocal pension exemption from the saving clause. This is important because it allows even U.S. citizens to claim this benefit, providing a unique opportunity to minimize US tax liability on their UK pensions.

Understanding the Misnomer of "Lump Sum"

It's worth clarifying that the term "Lump Sum" under UK tax law can be misleading. This is because the 25% Pension Commencement "Lump Sum" is not a full liquidation of your pension account but a partial distribution. The distinction between a full lump sum and a partial distribution is significant, and it can affect the taxation of the funds.

US courts are legally bound to refer to the OECD commentary when interpreting terms in income tax treaties, particularly if both the US and the treaty partner were members of the Organization for Economic Cooperation and Development ("OECD") when the treaty was drafted. The OECD commentary defines a lump sum distribution as anything other than "periodic payments." Therefore, the UK's use of the term "lump sum" does not alter the fact that it is a partial distribution of a quarter of the pension.


In summary, as a US resident receiving a UK pension, it's important to be aware of the tax implications and opportunities for tax avoidance. Your UK pension is generally subject to US taxation, including the growth within the pension. However, the U.S.-U.K. Income Tax Treaty provides a legal means to avoid US taxation on the 25% Pension Commencement Lump Sum (PCLS), thanks to the reciprocal pension exemption.

Our experienced tax attorneys at Castro & Co. are ready to assist clients in navigating the complexities of US taxation of UK pensions and optimizing their financial situation. By understanding the treaty provisions and the misnomer of "lump sum," you can take steps to minimize your US tax liability and make informed decisions about your UK pension income.

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Disclaimer: This article is intended for informational purposes only and does not constitute financial or tax advice. Readers are advised to consult with qualified tax professionals before making any financial decisions.

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