Understanding Capital Gains Tax in 2024/25: What British Expats Need to Know

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As the 2024/25 UK tax year unfolds, British expats around the world are navigating a shifting landscape when it comes to Capital Gains Tax (CGT). With tightening rules, changing thresholds, and new reporting obligations, it's more important than ever to stay ahead of the curve—especially if you’re managing UK assets from abroad.

In this article, we break down the evolving CGT environment, what’s changed this year, and how it may affect you if you’re a non-resident property owner or investor with UK ties.

What’s Changed in the 2024/25 Tax Year?

The UK government has implemented several key adjustments to CGT that came into effect with the start of the new tax year:

  • Reduced CGT Annual Exemption: The tax-free allowance for capital gains has been cut again, continuing the downward trend seen in previous years.

  • Tighter Reporting Deadlines: Non-residents disposing of UK property must now report and pay CGT within stricter timelines—missing these can result in penalties.

  • Increased Scrutiny on Non-Resident Disposals: HMRC is focusing more on tracking overseas disposals and cross-border tax compliance.

The “Creep” Effect: Quiet Yet Impactful Changes

These changes might not seem dramatic in isolation, but together they reflect a broader trend: a slow tightening of the CGT regime, especially for those living outside the UK. This “creep” manifests in three ways:

  1. Lower thresholds mean more people are caught in the tax net.

  2. Faster reporting requirements reduce planning windows.

  3. Greater enforcement and transparency standards increase the risk of non-compliance.

Implications for Non-Resident Property Owners

If you own UK property but live abroad, the latest rules bring several implications:

  • You’re liable to pay CGT on disposals—even if you’re non-resident.

  • You must report the sale within 60 days of completion.

  • CGT can apply to gains made since April 2015, when the rules were extended to non-residents.

Additionally, if you plan to gift property or transfer ownership, CGT may still apply, making proactive planning essential.

Planning Tips: Staying One Step Ahead

To mitigate risks and optimise outcomes, consider these planning strategies:

  • Review your UK asset portfolio in light of the new rules.

  • Time disposals wisely to use up what’s left of your annual exemption.

  • Seek professional advice if you’re unsure how the changes apply to your situation.

  • Track updates regularly, as further tweaks may come in the Autumn Statement or future Budgets.

ProACT Sam Says

As the UK tightens its grip on capital gains and ramps up cross-border compliance, British expats must stay informed and proactive. Whether you’re managing a buy-to-let in London or a legacy share portfolio, understanding CGT’s evolving rules is key to protecting your wealth.

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ProACT Sam Orgill

ProACT Sam Says for Expat Family & Business Living and Working Abroad across borders and down generations.

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