Tax Impact: Emergency Returns to the UK from Conflict Zones

Written by Jamie Favell | Mar 17, 2026 3:05:38 PM

For many British nationals, recent escalations in the Iran and United States conflicts have forced a return to the UK sooner than planned. A consequence of an emergency return is the risk of inadvertently trigger UK tax resident status and tax liabilities.

Understanding the Statutory Residence Test (SRT)

Your tax status is dictated by the Statutory Residence Test (SRT). While residency can sometimes be triggered by spending as little as 16 days in the UK (depending on your ties to the UK), it is always triggered if you spend 183 days or more here in a single tax year.

In conflict situations, delays are often unavoidable. When flights are cancelled and borders close, a temporary stay can quickly turn into a much longer trip. If you accidentally trigger UK tax residency, you could become liable for UK tax on your worldwide income and capital gains.

The “Exceptional Circumstances” Rule

The UK tax rules recognize that some events are truly out of an individual's control. The HMRC exceptional circumstances provision allows you to ignore up to 60 days spent in the UK when counting days for the Statutory Residence Test, provided you are genuinely unable to leave due to circumstances like war, civil unrest, or sudden border closures.

Generally HMRC's view has been that the exceptional circumstances rule does not apply where someone has chosen to come to the UK, even if the reason for coming was serious or urgent. In other words, the rule has tended to help people who were already in the UK and couldn’t leave - but not those who felt they had no real option but to return.

However they have previously recognised the impact of war with reference to the Ukraine conflict and have published guidance which clearly confirms returning to the UK when there is FCDO advice against all travel to a country would count as exceptional circumstances. While we anticipate similar treatment for current tensions in the Gulf, they have not yet confirmed this.

Mitigating Tax Implications

If the 60-day rule is insufficient to protect your status, or if you reach the threshold for UK tax residency regardless, we can consider other options to help manage your position:

Tax Treaties: We can leverage Double Tax Treaties to mitigate exposure and prevent double taxation on your income if you are a dual resident of the UK and another country, such as the UAE or KSA.
The FIG Regime: For those who qualify, the UK’s Foreign Income and Gains (FIG) regime may provide relief, exempting most foreign income and gains from UK tax for your first four years of residency.

👉 Need expert guidance? If you are concerned about how your return to the UK affects your tax status, please get in touch using the form at the bottom of this page.

👉 To view all of our UK Private Client tax services, please visit this page.

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