Your Life Insurance Doesn’t Cross Borders as Easily as You Do

A life insurance policy is written to one country’s rules, and a move between the UK and the US can quietly change how it is taxed, owned, and paid out.

Life insurance is one of the simplest promises in personal finance: if the insured person dies while the policy is in force, the insurer pays a defined sum, the death benefit, to the people named as beneficiaries. For a family whose entire financial life sits in one country, that promise is usually straightforward.

For families whose lives span the UK and the US, it rarely stays that simple. A policy taken out in London before a move to Atlanta, or a US policy bought by someone who still has parents, property, or eventual inheritance exposure in Britain, sits at the intersection of two tax systems, two regulatory regimes, and two currencies. The contract does not change when you board the plane. Everything around it does.

The country you live in rewrites what your policy does

Each country decides for itself what counts as life insurance, how the money inside a policy is taxed while you are alive, and whose estate the death benefit belongs to when you die. Those decisions are made under domestic law, and they generally apply to residents regardless of where the policy was originally issued.

This is why a policy that was perfectly efficient in one country can become awkward in another. A UK policy that HMRC, the UK tax authority, treats one way may be treated entirely differently by the IRS once the policyholder is a US resident. Nothing about the paperwork changes. The lens through which the paperwork is read changes completely.

The first step for any cross-border family is simply an inventory: every policy, where it was issued, who owns it, who is insured, who the beneficiaries are, and whether it has a cash value, a savings or investment component that builds up inside the contract, or is pure protection with no cash value, often called term insurance.

A UK policy may not count as life insurance in the US

The US tax code contains its own technical definition of life insurance, and policies must meet specific mathematical tests to qualify. Policies issued by US insurers are designed around those tests. Policies issued abroad typically are not, because their designers had no reason to think about American rules.

Pure term policies with no cash value are usually less of a concern. But UK policies with an investment element, certain whole-of-life plans or investment bonds with life cover attached, for example, may fail the US definition. When that happens, the growth inside the policy may lose the tax deferral that US policyholders normally expect, and in some cases may become taxable to a US resident year by year, even though nothing has been withdrawn.

There are reporting questions as well. A foreign policy with cash value is a foreign financial asset, and US residents may need to disclose it on foreign account reports such as the FBAR or Form 8938. In some situations, an excise tax can also apply to premiums paid to a non-US insurer. None of this means a UK policy is automatically a problem, many families reasonably keep coverage they could not replace on the same terms, but it does mean the policy should be reviewed by someone who understands both systems. These rules change, and how they apply depends on the specific contract, so a qualified cross-border tax professional should be part of that review.

Two death-tax systems can claim the same proceeds

The UK levies inheritance tax, generally on the estate of the person who dies. The US levies a federal estate tax, also on the estate, with a much higher exemption threshold but a broad definition of what the estate includes. A family with ties to both countries can find that a single death benefit is examined by both systems.

Ownership is usually the deciding factor. In the UK, it is common to have a policy “written in trust,” which typically keeps the proceeds outside the deceased’s estate for inheritance tax purposes. In the US, the parallel question is whether the deceased held what the tax code calls incidents of ownership, the right to change beneficiaries, borrow against the policy, or surrender it. If they did, the death benefit is generally pulled into the US taxable estate, even though the beneficiaries receive it directly. American planners often address this with an irrevocable life insurance trust, a structure built specifically to hold policies outside the estate.

The complication for cross-border families is that a trust designed for one country’s rules does not automatically work under the other’s. A UK trust arrangement may have unexpected US tax and reporting consequences for a US-resident settlor or beneficiary, and vice versa. The UK has also recently reshaped its inheritance tax regime around long-term residence rather than the older concept of domicile, which changes the calculus for many expats. In many cases the UK–US estate and gift tax treaty helps prevent the same assets being taxed twice, but treaty relief is technical and rarely automatic.

Currency and coverage rarely move in lockstep

There is a quieter issue that has nothing to do with tax: the currency of the promise. A policy that pays out in pounds sterling protects a family whose obligations are in pounds. If the mortgage, school fees, and household budget are now in dollars, the real value of that protection rises and falls with the exchange rate, and the family finds out which way it moved at the worst possible moment.

Cross-border families often carry obligations in both currencies at once: a US mortgage and lifestyle alongside UK commitments, or the reverse. Thinking about protection in terms of what the money must actually do, replace an income, clear a specific debt, fund education in a specific country, makes it easier to see whether the existing coverage, in its existing currency, still fits the life it is meant to protect.

Buying new coverage after a move has its own rules

Insurers underwrite people, and most prefer to underwrite people who live where the insurer operates. Someone newly arrived in the US will generally be able to apply for US coverage, though visa status, travel patterns, and medical history in another country’s health system can all affect the process. UK insurers, meanwhile, may be limited in what they can offer to someone who is no longer UK-resident.

Two general principles are worth holding onto. First, existing coverage should not be cancelled until any replacement coverage is actually in force, health changes, and a policy given up in anticipation of a new one may not be recoverable. Second, any guarantees a policy provides depend on the claims-paying ability of the issuing insurer, wherever it is based; the promise is only as strong as the institution making it. Which policies to keep, replace, or restructure, and in what amounts, are questions to work through with a licensed insurance professional who understands your full cross-border picture.

Where an advisor fits

Life insurance is only one instrument in a protection plan, but for cross-border families it touches nearly everything else: estate planning in two countries, tax reporting in two systems, and a household budget that may not sit entirely in one currency. The value of professional advice here is less about any single policy and more about coordination, making sure the coverage, the ownership structure, the beneficiaries, and the broader financial plan all point in the same direction on both sides of the Atlantic.

At Rosefinch Risk Management, we work with internationally mobile families for whom these overlaps are the norm rather than the exception. If your life spans two countries and your protection planning still assumes one, a structured review alongside qualified tax and insurance professionals is a sensible place to start.