How Much Foreign Income is Tax-Free in the UK?
Let’s cut straight to it—if you’ve earned money abroad or you’re thinking about moving to the UK, you’re probably wondering: do I have to pay British tax on that foreign income? The answer used to be complex, but from April 2025, things got clearer (though not necessarily simpler). Here’s what you actually need to know.
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The Big Change 2025
For decades, the UK tax system had something called “non-dom status“—basically, if you weren’t considered domiciled here, you could avoid paying tax on money earned abroad. That’s now gone. From 6 April 2025, the UK ditched the whole domicile concept and switched to something called the Foreign Income and Gains (FIG) regime.
This shift means the rules aren’t about where you’re from anymore—it’s purely about where you live and how long you’ve been here. It’s actually fairer in many ways, but it does mean almost every UK resident now needs to think about their foreign income. The old automatic exemptions for small amounts of overseas earnings have been replaced with something more structured and transparent.
The Four-Year Golden Ticket: New Arrivals Get a Tax Break
If you’ve just moved to the UK (or you’re planning to), here’s the good news. The new FIG regime provides complete exemption from UK tax on your foreign income and gains for your first four years of UK residence, provided you’ve been non-resident in the UK for at least 10 consecutive years beforehand.
This is genuine relief. You earn money overseas, and the UK doesn’t touch it—whether it comes from a business, investments, or employment abroad. Sounds brilliant, right?
But here’s where it gets real: If you claim the FIG relief, you lose your personal allowance and your capital gains tax annual exemption. So while your foreign income is tax-free, your UK income gets squeezed. For most people, this is still worth it, but it’s worth calculating first.
What You Get | What You Lose |
100% exemption on foreign income & gains (4 years) | Personal allowance (£12,570 for 2025/26) |
Freedom to bring money to UK tax-free | Capital Gains Tax annual exemption (£3,000) |
No restrictions on keeping funds offshore | Ability to claim certain other allowances |
The maths usually works out in your favour, especially if you’re earning significant amounts abroad. But it’s not automatic—you have to claim it properly.
For Everyone Else: If You’re Already Here, It Gets Complicated
If you’re already living in the UK and you’re not a brand-new arrival, things are different. You’ll generally need to report your foreign income and gains on your Self Assessment tax return. There’s no dodging this bit.
Here’s the reality: If you’re a UK resident, you’ll normally pay tax on your foreign income unless you’re eligible for Foreign Income and Gains relief. Your foreign earnings get added to your UK income, and you pay tax at the regular rates—20% for basic rate, 40% for higher rate, and 45% for additional rate.
That said, there are some small allowances that can help. Small amounts of foreign interest might be covered by the personal savings allowance or the starting rate for savings, and foreign dividends can be covered by the dividend allowance. So your first bit of foreign interest or dividends could still be tax-free up to those limits.
The Allowances That Actually Matter: When Your Foreign Income Gets a Free Pass
It’s not all bad news for long-term residents. Several built-in allowances mean some foreign income genuinely doesn’t trigger a tax bill.
- Foreign Interest & Savings: UK tax law recognises a personal savings allowance. If your total income stays within the basic rate threshold, interest earned abroad gets the same treatment as UK interest—potentially completely tax-free if you’re a basic-rate taxpayer.
- Dividends from Abroad: Foreign dividends can be covered by the dividend allowance, which means your first £500 of dividends (if you’re a basic-rate taxpayer) isn’t taxed at all.
- Foreign Property Rental: If you let out property overseas, the taxable amount is your rent minus genuine expenses. You can deduct management fees, maintenance, insurance, and mortgage interest—just like UK property.
- Small Capital Gains: Small foreign gains may be covered by the capital gains tax annual exempt amount, which sits at £3,000 for the 2025/26 tax year.
These aren’t massive amounts, but they add up over time.
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Double Taxation and Getting Relief: Earning Abroad Shouldn’t Mean Paying Tax Twice
Here’s something that catches people out: if you’ve paid tax on your foreign income in another country, the UK might tax it again. That’s where double taxation agreements come in. You may be able to claim tax relief if you’re taxed in more than one country.
In practice, if you’ve already paid tax overseas, you usually get a credit against your UK tax bill. But you’ll need to gather proof—often a certificate of residence from the country where you paid tax. This is worth getting right because the difference between paying full UK tax and getting relief can be thousands of pounds.
Do You Even Need to Report It? Not Always
Here’s a useful bit: If your worldwide income falls within your personal allowance, you might not need to register for Self Assessment just to report foreign income. So if your UK job pays under £12,570 and your foreign earnings are minimal, you might get away without filing at all.
But—and this is important—if you’re unsure, it’s better to register and file. HMRC takes foreign income seriously, and accidental non-compliance can get expensive.
What This Means for You
New residents with the right background get a real opportunity here. Four years tax-free on foreign income is substantial. But it’s not automatic—you have to claim it, and you need to report the amounts correctly.
Everyone else? Your foreign income is taxable, but allowances, reliefs, and double taxation agreements mean you’re not necessarily paying 20%, 40%, or 45% on every penny earned abroad. Getting professional advice on your specific situation pays for itself.
Whether you’re planning a move to the UK or managing income from across the world, this stuff matters. Getting it wrong costs money; getting it right saves it. If your situation’s complicated—and with foreign income, it usually is—speak to a tax professional who understands the new rules.
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Thank you for your excellent and insightful article, it was truly valuable