Right now, there is a British entrepreneur sitting in a Dublin hotel, watching the news from Dubai and counting days on a calendar. He is not counting days until the war ends. He is counting days until April 5th — the end of the UK tax year — because if he sets foot in Britain before that date, a business he sold two years ago while living tax-free in Dubai becomes retroactively subject to UK capital gains tax.

He is not the only one. Across Europe, in serviced apartments in Lisbon and Airbnbs in the south of France, thousands of former Dubai residents are doing the same arithmetic. Not because they planned to be here, but because a war that started on February 28th turned their carefully structured tax lives inside out in a matter of hours.

Some of them will navigate this well. They will maintain their UAE tax residency, avoid triggering obligations elsewhere, and resume their lives when conditions allow. Others — the ones who flew straight home to the UK without thinking, or who are sitting in a country they picked because the flights were available — are going to discover over the next twelve months that their emergency relocation was the most expensive financial decision they ever made.

The difference between these two groups has nothing to do with wealth or connections. It is whether they understood, before they boarded the plane, what they were walking into.

The situation as it stands

Since February 28th 2026, Iran has launched over 300 ballistic missiles and more than 1,600 drones at the UAE. Most have been intercepted, but debris and projectiles have hit populated areas across Dubai and Abu Dhabi. Dubai International Airport has been struck. The DIFC has been hit. Residential buildings in Marina and Palm Jumeirah have taken damage. Eight people are dead and over 150 injured.

The exodus began immediately. Private jet evacuation costs hit $250,000 in the first days. Flights out were full. Hotels in Dubai slashed prices as bookings collapsed. Some residents rushed back within days, terrified of losing their tax status. Others left and have not returned.

The UAE authorities understand what is at stake. Reports indicate they are preparing to relax tax residency rules for expats who left during the conflict, assessing applications on a case-by-case basis rather than issuing blanket exemptions. Force majeure provisions may apply. But nothing has been formalised, and the Federal Tax Authority is reportedly reluctant to set precedents.

That uncertainty is the problem. And for the people already gone, the damage may already be accumulating — not in Dubai, but wherever they landed.

The UK boomerang trap

This is the trap that is catching the most people right now, and the one with the highest stakes.

Approximately 160,000 British nationals are registered across the Gulf region. Many relocated to Dubai specifically for the zero-tax environment. When the missiles started falling, the instinct was to go home — to family, to safety, to the familiar. Completely understandable. Potentially catastrophic.

The UK's Statutory Residence Test does not care about your intentions. It does not care about your reasons. It counts days, and it counts ties.

The numbers are brutal. An executive earning £400,000 who accidentally triggers UK tax residency faces a potential bill of over £160,000. And it gets worse. If you sold a business, property, or investment while you were non-resident in the UAE, and you have been away from the UK for fewer than five years, the temporary non-residence rules mean those gains get taxed on your return as if you never left. Gains you thought were safely realised abroad come roaring back.

HMRC does allow up to 60 days to be disregarded under "exceptional circumstances" — and war clearly qualifies. But tax advisors are warning clients not to rely on this. The provision is narrow, HMRC interprets it strictly, and crucially, it only covers days when you were genuinely unable to leave. The moment you choose to stay in the UK for comfort or convenience rather than safety, those days count.

This is why some of the savviest Dubai expats are not going home at all. They are going to Ireland, to France, to Portugal — anywhere that lets them wait out the UK tax year without triggering UK residency. The ones who understood this before they left Dubai are fine. The ones who are learning about it now, three weeks into a UK stay with April 5th approaching, have a very small window to act.

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The UAE residency question

Even if you avoid the UK trap, there is the question of whether you still qualify as a UAE tax resident at all.

Under current rules, you need 183 days of physical presence in a rolling 12-month period. A reduced threshold of 90 days applies if you maintain strong ties — a permanent home, employment, or a business in the UAE. The tax year started January 1st. If you left in early March and cannot return for months, you are at serious risk of falling short.

The UAE also has a "centre of life" test that may provide a lifeline — if your primary residence, financial interests, and economic activities remain in the country, residency may be preserved even if your physical presence drops. But this has never been tested in a scenario like the current one, and the Federal Tax Authority has not issued guidance on how it will be applied.

Your company did not evacuate with you

This is the one that founders are not thinking about, and it may be the most expensive mistake of all.

If you were running a UAE free zone company — particularly under the Qualifying Free Zone Person regime for 0% corporate tax — the substance requirements did not pause when you left. Adequate employees, adequate expenditure, core income-generating activities conducted within the free zone — these are ongoing conditions. If you are now operating your "UAE company" from a laptop in London or Lisbon, you may have just created a permanent establishment in your new location.

It gets worse from there. Your free zone company may lose QFZP status, making it subject to UAE's 9% corporate tax on profits above AED 375,000. Simultaneously, the country where you are actually working may assert taxing rights over the company's profits on the basis that its effective management is now conducted there. You could end up being taxed in two countries on the same income, with no treaty relief because your structure was not designed for the jurisdiction you are sitting in.

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Where people are actually going

The expats who planned ahead are mostly in the same handful of places. They picked countries that give them time without creating new tax obligations.

Ireland

No automatic residency until 183 days (or 280 days across two years). No day-counting ties test like the UK's SRT. For British nationals, it is accessible and familiar without the tax exposure of going home. The entrepreneur in the Dublin hotel knows exactly what he is doing.

France

Residency is assessed on a holistic basis — habitual abode, centre of economic interests, principal professional activity. A temporary stay of a few months is unlikely to trigger French tax residency if your economic life is still anchored in the UAE. But stay too long or start working actively from France, and the analysis changes.

Portugal

The 183-day rule applies, and Portugal offers the new IFICI regime (replacing the old NHR) for qualifying professionals who establish residency. If you are considering a permanent move out of the Gulf, Portugal may be worth evaluating properly — but it is not a place to park temporarily without understanding what you might trigger.

Nowhere specific (the "orbit" strategy)

Some high-net-worth individuals are deliberately avoiding spending significant time in any single jurisdiction. A few weeks in one country, a few weeks in another, never enough to trigger residency anywhere. This works as a short-term strategy but it is not sustainable, and it comes with its own risks — not least that you may fail to be tax resident anywhere, which creates complications for treaty access and banking.

What the prepared ones are doing differently

The people who will come through this without six-figure tax surprises share a few characteristics. None of them are particularly clever or well-connected. They simply thought about the tax consequences before they booked the flight, or they got advice within the first 48 hours.

They know their day count. They know exactly how many days they have spent in the UK this tax year, and they know their tie-breaker thresholds. They are tracking this like a resource that depletes.

They chose their destination deliberately. Not based on where the flights were going, or where their parents live, but based on which jurisdiction gave them the most time without creating new obligations.

They have not changed how they run their company. They are not making operational decisions from their temporary location. They are using their UAE team, delegating to directors who remain in the free zone, and being careful about where management and control is exercised.

They are documenting everything. Travel records, boarding passes, evidence of their UAE home being maintained, evidence of their intention to return. If the UAE does apply force majeure provisions, this documentation will be the difference between keeping residency and losing it.

And they have a plan for the next move — not just the emergency one. Because the people who handle the next three months well but do not think about the next twelve are just deferring the problem.

The bigger question

For many Dubai expats, this crisis is forcing a conversation they were going to have eventually: is the UAE still the right long-term base?

Before the war, the calculus was straightforward — zero personal income tax, low corporate rates for free zone companies, excellent infrastructure, a central time zone. The security situation was an assumed constant, not a variable. That assumption has now been shattered, and even if the conflict ends tomorrow, the idea that Dubai is unconditionally safe is gone.

This does not mean everyone should leave. It means that for the first time, the decision to stay in Dubai is a decision rather than a default. And if you are reconsidering, the worst possible time to pick your next jurisdiction is when you are panicking about a war. The best time is when you have a clear picture of your income, your structure, and what each destination actually requires of you. Before you commit.