The UK–UAE Double Tax Treaty: What Changed Once the UAE Started Taxing Profits

The Convention between the United Kingdom and the United Arab Emirates for the avoidance of double taxation was signed in Dubai on 12 April 2016 and entered into force on 25 December 2016. For most of its life it did a fairly narrow job. The UAE levied no broad federal tax on corporate profits, so the treaty mainly protected UAE residents from UK tax.

That balance has shifted. UAE Corporate Tax arrived for financial years starting on or after 1 June 2023, and the Domestic Minimum Top-up Tax followed from 1 January 2025. Both states now genuinely tax business profits. The allocation rules, the credit mechanics and the anti-abuse tests have all taken on weight they simply did not have before.

The MLI has already rewritten parts of it

The Multilateral Instrument modified this treaty some years ago, and the modified text is the one that applies. The effective dates differ by tax:

One caution throughout. The authentic texts of the Convention and the MLI are the governing instruments. The synthesised text published by the authorities is a reading aid, not a substitute for the underlying law.

Scope, and the hydrocarbons carve-out

The Convention applies to residents of one or both states, covering income and capital gains taxes. It also extends automatically to identical or substantially similar taxes introduced after signature — which matters, because UAE Corporate Tax postdates the treaty.

One limitation is easy to miss. Each state keeps the right to tax hydrocarbon income and profits under its own domestic rules. In the UAE the extractive sector is taxed at Emirate level rather than federally, so it sits largely outside the treaty's protection.

Residence, and the risk for dual-resident companies

Residence is the gateway to every benefit. For individuals with residence in both states, the treaty applies the familiar cascade: permanent home, then centre of vital interests, then habitual abode, then nationality.

Companies are treated differently, and this is the provision to watch. Dual residence for a company is not resolved by a mechanical rule. It goes to mutual agreement between the two tax authorities. If they cannot agree, the company is treated as a resident of neither state for treaty purposes, apart from a few residual articles.

That is a real risk, not a theoretical one. A company can fall out of the treaty altogether. The Protocol lists what the authorities weigh — where senior management operates, where the board meets, where the headquarters sits, the economic connection to each state. Groups with genuinely cross-border management should plan around this rather than test it after the fact.

Permanent establishment: the twelve-month line

The permanent establishment article follows the conventional model. A fixed place of business creates one, and that expressly includes a place of management, branch, office, factory or workshop. The usual carve-outs apply for storage, display, delivery, purchasing and genuinely preparatory or auxiliary activity.

Two tests do most of the work in practice. A building site or construction or installation project creates a permanent establishment only if it runs for more than twelve months. And the dependent-agent rule catches anyone who habitually concludes contracts on behalf of the enterprise.

Now that the UAE taxes business profits and taxes non-residents on income connected to a UAE permanent establishment, these two tests often decide whether a UK business becomes taxable in the UAE — and the reverse.

Dividends, interest and royalties

This is where the treaty is most generous, and where the detail repays reading.

Dividends

As a general rule, dividends paid to a beneficial owner resident in the other state are exempt from tax in the source state. There is one carve-out: where the payer is a property-investment vehicle that distributes most of its income annually and is exempt on that property income — a REIT-type structure — the source state may tax up to 15% of the gross dividend. A pension scheme that is the beneficial owner recovers the full exemption even then.

Interest

Source-state taxation falls away entirely where the beneficial owner meets one of the qualifying conditions. Those conditions cover a wide range of holders — states and their bodies, individuals, listed companies, pension schemes, independent financial institutions, and other companies that satisfy a competent-authority purpose test. In practice most genuine cross-border lending between the two states can reach a nil rate at source.

Royalties

The simplest of the three. Royalties beneficially owned by a resident of the other state are taxable only in that other state. The source state gives up its taxing right completely.

In each case the benefit falls away where the income is effectively connected with a permanent establishment in the source state. The business profits article applies instead.

Capital gains

Gains from immovable property, and from shares deriving most of their value from immovable property in the other state, may be taxed where the property sits. Gains from assets forming part of a permanent establishment may be taxed where that establishment is. Everything else — including ordinary share disposals outside the land-rich rule — is taxable only in the seller's state of residence.

Relief from double taxation, now that it bites

Where a UAE resident is taxed in the UK in accordance with the treaty, the UAE gives a credit for the UK tax paid, capped at the UAE tax on that income. The UK gives credit for UAE tax against UK tax on the same income, and applies exemption for qualifying dividends and permanent establishment profits where its domestic conditions are met.

For years the UAE side of this was theoretical — there was no UAE tax to credit against. That is no longer true. A UAE company with UK-source income, or a UK group operating through a UAE taxable presence, now has to work the credit mechanics in both directions. Residence certification becomes a practical prerequisite rather than a formality.

The principal purposes test raises the bar

The MLI replaced the treaty's preamble to state expressly that it is not intended to create opportunities for non-taxation or reduced taxation through avoidance or treaty-shopping. That is not decorative drafting; it colours how the substantive articles are read.

More importantly, the principal purposes test now governs access to benefits. A benefit is denied where it is reasonable to conclude, on all the facts, that obtaining it was one of the principal purposes of an arrangement — unless granting it would accord with the object and purpose of the provision. This replaced the narrower main-purpose rules that previously sat inside the dividend, interest and royalty articles.

There is a safeguard. A taxpayer denied benefits can ask the competent authority to grant them anyway, where they would have been available without the offending arrangement. But the practical message is clear: treaty positions now need commercial substance behind them, not structuring alone.

Dispute resolution improved at the same time. A taxpayer may present a case to the competent authority of either state, not only its state of residence, within three years of the first notification of the disputed action.

What to review now

1. Establish and evidence residence, particularly for any entity exposed to the dual-residence tie-breaker, where failure to agree can mean losing treaty protection entirely.
2. Monitor permanent establishment exposure in both directions, now that both states tax the resulting profits.
3. Test any structure relying on reduced or nil source-state rates against the principal purposes test, and document the commercial rationale rather than assuming it.
4. Work the credit mechanics in both directions, and keep the residence certificates that support the claim.

The Convention remains a favourable treaty — nil or low source taxation on the main categories of passive income, and residence-only taxation for a wide range of gains. But it can no longer be read on autopilot. The MLI layered an anti-abuse framework over the original text, and UAE Corporate Tax activated provisions that were dormant for years. If your business operates between the UK and the UAE, talk to our team and we will review your position against the treaty as it now stands.

This article is general information, not tax or legal advice. Positions should be confirmed against the authentic texts of the Convention and the MLI, and against current UAE and UK law, before any transaction is undertaken.