Is your money in good order before the year ends? This year-end financial checklist for UK expats in Portugal walks you through the ten things I look at with clients every November and December, while there is still time to act.

The Portuguese tax year runs from 1 January to 31 December, so the end of the calendar year is a natural deadline. Add the UK tax year, which ends on 5 April, and British expats effectively live with two financial calendars at once. A short, structured review now can save you money, stress and awkward surprises when your Portuguese tax return comes round in the spring.

Why a Year-End Review Matters More for Expats

If you lived in the UK, your finances mostly ran on one calendar. Move to Portugal and suddenly you have a UK pension paying out, perhaps a UK investment account, a Portuguese bank account, and two tax authorities who each care about different dates. Things slip through the cracks easily.

In my experience working with clients in the Algarve, most expensive mistakes are not exotic. They are simple things left too late: a form not filed, a pension not reviewed, a will that no longer matches reality. A year-end review is about catching these while they are still easy to fix.

None of what follows needs to take more than an afternoon. Grab a coffee, gather your statements, and work through it one step at a time.

1. Gather Every Statement and Work Out What You Actually Own

Start with a simple list of everything you hold, in both countries. That means bank accounts, savings, ISAs, investment platforms, workplace and personal pensions, the UK State Pension, property and any life insurance or investment bonds.

Many people are surprised by what they find. An old workplace pension from a job twenty years ago, a forgotten savings account, a policy that was never cancelled. If you suspect you have lost track of a pension, the UK government runs a free Pension Tracing Service, and it costs nothing to use.

Write down the value, the provider, and the country where each asset sits. This one page becomes the foundation for everything else, including your tax return and your estate planning.

2. Check Your Tax Residency Position

Your tax residency decides which country has the main right to tax your income. In Portugal, you are generally treated as resident if you spend more than 183 days in the country in a calendar year, or if you have a home here that suggests you intend to keep it as your habitual residence.

If you have been travelling back and forth to the UK, count your days honestly. Keep flight confirmations and, if you can, a simple diary. If your circumstances changed during the year, for example you moved here, bought a home or started spending more time in the UK, make a note of the dates, because they matter when you file.

The UK and Portugal also have a double taxation agreement designed to stop the same income being taxed twice. How it applies depends on the type of income, which is why the next few steps matter.

3. Review How Each Income Stream Is Being Taxed

List every source of income you received this year: UK pension, State Pension, rental income, interest, dividends, and any work or consultancy. Then check where each one has been taxed and whether you have claimed the right treatment.

A common issue for UK pension income is that HMRC may tax it at source using a standard tax code unless you have asked for it to be paid gross or with the right code. If you are resident in Portugal and tax is being deducted in the UK when it should not be, you can end up paying twice, or waiting a long time for a refund.

It is far easier to correct a tax code before year-end than to reclaim money afterwards. If this feels unfamiliar, our guide to pensions and tax for UK expats on the Arthur Browns site is a good place to start.

4. Take Stock of Your Pension Position

This is the big one. Your pensions are probably your largest financial asset, and they deserve proper attention at least once a year.

Ask yourself:

• Do I know the current value of each pension and what it is invested in?
• Do I know the charges I am paying, including adviser, platform and fund fees?
• Is the investment mix still right for how soon I need the income?
• Am I withdrawing at a sustainable rate, or taking more than I realised?
• Have I named, or recently checked, my beneficiaries (the people who receive the pension if I die)?

The last point is easy to overlook. Pension death benefits are usually paid according to your nomination form, not your will, so an out-of-date form can send money to someone you never intended. Check it today and update it if needed.

If you are considering a bigger change, such as moving a UK pension abroad, take regulated advice first. The independent MoneyHelper service has good plain-English guidance on the basics.

5. Look at Your Savings, Cash and Currency Exposure

Many expats hold more cash than they need, because it feels safe. But cash loses value to inflation over time, and holding it in the wrong currency adds another layer of risk.

Work out how much you genuinely need as an emergency fund. A common rule of thumb is several months of spending, held somewhere easy to reach. Anything beyond that may be better working harder elsewhere, depending on your goals and your appetite for risk.

Also think about currency. If your income is in pounds but your living costs are in euros, a weaker pound directly reduces your lifestyle. Consider how much of your spending is covered, and whether it makes sense to hold part of your reserves in euros so that you are not forced to exchange at a bad moment.

6. Check the Tax Treatment of Your Investments

This is where moving countries catches many people out. Investments that were tax-efficient in the UK, such as ISAs, do not necessarily keep that status in Portugal. A UK ISA wrapper is generally not recognised for Portuguese tax purposes, which means interest, dividends and gains may be taxable in Portugal even though HMRC ignores them.

That does not automatically mean you should sell. It means you need to understand the position, report it correctly and weigh up whether the investments still make sense for your situation. Selling just to avoid tax can itself trigger a bill, so look at the whole picture before acting.

Gather the information you will need for your Portuguese return: dividend and interest statements, and any sales during the year with purchase cost and sale proceeds. Having these ready in January is far less stressful than hunting for them in June.

7. Review Your Will and Estate Planning

If you own property in Portugal, or you are resident here, your estate may be affected by Portuguese succession rules as well as UK ones. Portugal has forced heirship rules, which limit how freely you can leave your assets, though in some cases you can choose which country’s law applies to your estate.

Many expats still rely on a UK will that was drafted years ago and does not deal with Portuguese assets. A will for each country, properly coordinated, is often the cleanest approach, but you need local legal advice to get this right.

While you are at it, think about a lasting power of attorney or its Portuguese equivalent, so that someone you trust can act for you if you lose capacity. Sorting this out in good health is far simpler than doing it in a crisis.

8. Make Sure Your Healthcare and Insurance Are Still Fit for Purpose

Your health coverage may have changed since you arrived. Check that you are correctly registered with the Portuguese health system if you are entitled to it, and whether any private cover is still adequate and affordable.

Also review other policies: home, car, life and travel. Premiums often creep up each year, and cover that made sense when you first moved may no longer match your circumstances. Ask for quotes before your renewal dates rather than letting everything roll over automatically.

9. Tidy Up Your Paperwork and Deadlines

Create a simple calendar of the dates that matter. For most expats this includes your Portuguese tax return window in spring, the end of the UK tax year on 5 April, and any renewals for residence documents, insurance and bank products.

Keep digital copies of key documents in one place: your tax number, residence certificate, pension statements, property documents and previous tax returns. If something happens to you, your family will also need to know where to find them.

The Portuguese Tax Authority portal is where you will file and check your own tax records, so make sure your login still works well before you need it.

10. Set Your Goals for the Year Ahead

A review is not only about fixing problems. It is also a chance to ask what you actually want your money to do. Do you want to help children or grandchildren? Travel more? Keep a buffer for care costs later in life? Leave a legacy?

Clear goals make every other decision easier, from how much risk to take to which accounts to draw from first. Write down two or three goals and check, honestly, whether your current set-up supports them.

Common Year-End Mistakes I See

A few patterns come up again and again. People leave their pension in an investment they have not looked at for a decade. They assume a UK arrangement works the same way in Portugal. They rely on advice from friends in the same position, whose circumstances may be quite different. And they leave tax paperwork until the final week, which is when errors creep in.

None of these are disasters on their own. Together, over several years, they can quietly cost thousands. The cure is boringly simple: review regularly, keep records, and ask for help when something does not make sense.

Frequently Asked Questions

When does the tax year end for UK expats living in Portugal?

Portugal uses the calendar year, ending on 31 December, and your Portuguese tax return is filed in the following spring. The UK tax year ends on 5 April. If you still have UK income or UK tax matters, you may need to think about both dates.

Do I still need to do anything with HMRC if I live in Portugal?

It depends on your income. If you receive UK pensions, rental income or other UK-source income, you may still have dealings with HMRC. Check your position each year, and keep your tax code and any forms up to date.

Is a UK ISA still tax-free in Portugal?

Generally not. A UK ISA is not treated as tax-free by the Portuguese tax authority, so income and gains can be taxable in Portugal. It is worth getting advice before making changes, because the right answer depends on your circumstances.

How often should expats review their pensions and investments?

At least once a year, and also after any major life event such as a move, a change in health, a death in the family or a significant change in markets. A year-end review is a sensible rhythm.

Should I update my will after moving to Portugal?

In most cases, yes. A will written in the UK may not deal properly with Portuguese assets or succession rules. Take advice from a qualified local lawyer so your documents work together.

What to Do Next

A calm year-end review can protect your pensions, trim unnecessary tax and give you confidence heading into the new year. Start with the statements, work through the ten steps, and note down anything you are unsure about.

If you would like to talk through how this applies to your own situation, get in touch with our team. We specialise in helping UK expats in Portugal make the most of their pensions and investments, and you can find out more about us on the Arthur Browns homepage.

This article is general information only and is not personal advice. Tax rules change and their effect depends on your individual circumstances, so please take regulated advice before acting.

Matthew Renier is a Chartered Financial Adviser at Arthur Browns Wealth Management, based in the Algarve, Portugal, helping British expats manage their pensions and financial planning across borders.

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