What would UK political instability mean for UK expats and their money?

May 7, 2026

For many UK nationals living overseas, British politics can sometimes feel like background noise.

You may live in Portugal, Spain, Dubai or elsewhere. Your day-to-day life may no longer revolve around Westminster. But if you still have UK pensions, UK property, sterling cash, UK investments, or future plans to move money abroad, what happens in the UK still matters.

Recent speculation around Prime Minister Keir Starmer’s position has once again reminded markets that political stability is not just a domestic issue. It can affect government borrowing costs, gilt yields, the pound, tax policy and investor confidence.

And for UK expats, those things can filter directly into real financial planning decisions.

Why markets care about political uncertainty

Markets do not usually react to politics because of personalities. They react to uncertainty.

If investors believe a UK government may change direction, increase borrowing, loosen fiscal rules or raise taxes, they start asking a simple question:

Is the UK becoming a riskier place to lend to or invest in?

That is where gilt yields come in. Gilts are UK government bonds. When gilt yields rise, it generally means the UK government has to pay more to borrow money.

Recent reports have shown UK borrowing costs rising again, with long-term gilt yields reaching levels not seen since the late 1990s, partly due to inflation concerns, geopolitical tensions and uncertainty around the future direction of the UK government.

That matters because higher borrowing costs can put pressure on future Budgets. If the government has to spend more servicing debt, it has fewer easy options. It can cut spending, borrow more, or raise taxes.

For UK expats, the tax question is often the one that matters most.

Why UK expats should pay attention

Many British expats assume that once they leave the UK, UK political risk becomes less relevant.

That is not always true.

You may still be affected if you have:

• UK pensions;

• UK rental property;

• UK investment accounts;

• UK inheritance tax exposure;

• sterling cash savings;

• a UK business;

• family members or beneficiaries in the UK;

• plans to return to the UK later.

A change in UK leadership or fiscal policy may not affect you overnight. But it can influence the direction of travel.

And the direction of travel is already clear: the UK tax base is under pressure.

We have already seen major changes announced around pensions and inheritance tax from April 2027, with unused pension funds expected to fall within the inheritance tax framework. For expats with significant UK pension wealth, this is not a small technical change. It could alter the old assumption that pensions should always be preserved as an inheritance tax shelter.

If future governments need more revenue, internationally mobile families, non-residents with UK assets, higher earners, pension holders and property owners could all come under greater scrutiny.

'Sterling risk' is real

Political instability can also affect sterling.

For UK expats living in Portugal or Spain, this matters because many people still hold wealth in pounds but spend in euros.

If the pound falls against the euro, your spending power can reduce quickly. That can affect retirement income, property purchases, school fees, lifestyle costs and the timing of moving money abroad.

This is particularly important for people planning a move to Portugal who are selling a UK property, transferring pension income, or converting large sterling balances into euros.

Currency planning should not be an afterthought.

A well-structured plan should consider how much you need in euros, how much sterling exposure is sensible, and whether you are taking unnecessary exchange-rate risk at the wrong stage of life.

Gilt yields, pensions and retirement income

Higher gilt yields can have mixed effects.

For some people, higher gilt yields may improve annuity rates, because annuity pricing is linked to long-term bond yields. That could be helpful for retirees who want guaranteed income.

But for others, rising gilt yields can reduce the value of existing bond funds, especially longer-duration gilt funds. This matters for cautious investors who assumed that “low-risk” bond funds would always behave calmly.

The lesson is not that gilts are bad. The lesson is that risk needs to be understood properly.

For expats, it is even more important because your retirement plan may involve more than one country, more than one currency and more than one tax regime.

A UK pension strategy that looks sensible for a UK resident may not be the right strategy for someone living in Portugal.

The tax direction matters more than the political drama

The names being discussed as possible Labour successors — including Angela Rayner, Wes Streeting and Andy Burnham — all come with different political and economic assumptions.

Some market commentators have suggested that a move further left could increase concerns around borrowing, wealth taxes, business taxes or looser fiscal policy.

But for expats, the bigger point is this:

Do not build your financial plan around one politician staying in place.

Governments change. Tax rules change. Market sentiment changes. Exchange rates change.

A good cross-border plan should not depend on perfect political stability. It should be resilient enough to cope with change.

What should UK expats be reviewing?

This is where proper planning becomes valuable. Not because anyone can predict the next leadership challenge or Budget announcement, but because you can put yourself in a stronger position before changes happen.

Consider reviewing:

1. UK pensions

How are your pensions structured? Are they still suitable if you are already Portuguese tax resident, or planning to become so? Have you considered the UK inheritance tax changes from April 2027? Are you drawing income in the most efficient order?

2. UK property

If you still own UK property, how does this interact with UK capital gains tax, rental income, inheritance tax and your tax position overseas?

3. Currency exposure

Are your assets and future spending needs aligned? If your life is now in euros, does it still make sense for most of your wealth to remain in sterling?

4. Investment structure

Are your investments held in a tax-efficient structure for your country of residence? What works in the UK may not work efficiently in Portugal.

5. Estate planning

Do your UK wills, pension nominations and wider estate plan still make sense now that you live abroad? This becomes especially important where UK inheritance tax and Portuguese succession rules overlap.

6. Timing

Often, the biggest mistakes happen because people do things in the wrong order. Selling assets, taking pension lump sums, moving residency, changing tax address or transferring money can all have different outcomes depending on timing.

The key message

Political noise will always be there.

One month it is a leadership challenge. The next it is a Budget. Then it is gilt yields, inflation, tax reform, or currency volatility.

For UK expats, the answer is not to react emotionally to every headline.

The answer is to build a plan that connects your UK assets with your overseas life.

That means understanding your pensions, your tax position, your currency exposure, your investment structure and your long-term intentions.

Because while you may have left the UK physically, your financial life may still be deeply connected to it.

And in an uncertain political environment, that connection needs to be managed carefully.

If you are a UK national living in Portugal, or planning to move here, it is worth reviewing your UK pensions, investments, property and estate planning before making major decisions.

At Atlas Bridge Wealth, we help UK expats understand how their UK financial life connects with their new life overseas, and how to do things in the right order.

DISCLAIMER: This article is for general information only and does not constitute personal financial, tax or investment advice. Cross-border planning depends on your individual circumstances and should be reviewed with appropriately qualified advisers in both jurisdictions.