Can the UK Strip You of Dual Citizenship? Understanding the Law on Deprivation and Your Rights

The UK can deprive someone of British citizenship, but only under powers set out in law. The main grounds are that citizenship was obtained through fraud, false representation or concealment of a material fact, or that deprivation is considered conducive to the public good. The rules on statelessness differ between those grounds. For wider context, see our guide on losing British citizenship.

The legal power in plain terms

The power is contained in section 40 of the British Nationality Act 1981. Public-good decisions must be made personally by the Home Secretary, or another Secretary of State in their absence. Deprivation is different from voluntarily giving up citizenship, as explained in our guide to how UK dual citizenship works.

The grounds for deprivation

Ground	What it covers	Who may be affected
Fraud, false representation or concealment	Citizenship obtained through a material deception, such as a false identity or withheld information	People whose citizenship resulted from registration or naturalisation
Conducive to the public good	National security, hostile-state activity, terrorism, serious organised crime, war crimes or comparable conduct	British citizens where deprivation would not normally make them stateless
Narrow statelessness exception	Conduct seriously prejudicial to the UK’s vital interests, where there are reasonable grounds to believe another nationality can be acquired	Certain naturalised British citizens

In fraud cases, the Home Office applies the balance-of-probabilities standard. It must be more likely than not that the deception occurred and was material to the grant. Statelessness is not an absolute bar to deprivation on fraud grounds.

Can a British-born citizen be deprived?

A person who was British from birth can, in principle, be deprived on public-good grounds if they hold another nationality and would not become stateless. Someone who was British from birth and has no other nationality cannot ordinarily be deprived.

Fraud-based deprivation usually concerns citizenship acquired later through registration or naturalisation. Being born in the UK does not always mean someone was automatically British, so the route to citizenship must be checked.

How often does it happen?

From 2010 to 2024, at least 1,565 deprivation orders were made: 1,342 for fraud and 223 because deprivation was considered conducive to the public good. The number of successful appeals is not known. The House of Commons Library briefing on deprivation of British citizenship provides further background.

The 2025 change to appeals

In February 2025, the Supreme Court considered the effect of a successful appeal or the withdrawal of a deprivation order. Parliament then passed the Deprivation of Citizenship Orders (Effect during Appeal) Act 2025, which came into force on 27 October 2025.

A deprivation order can remain effective while an onward appeal is pursued or the time for bringing one has not expired. Citizenship is therefore not automatically restored after a successful first appeal. If proceedings are finally resolved in the person’s favour, citizenship is treated as having continued, while lawful immigration enforcement taken during the appeal period remains protected.

Your rights if you face deprivation

The Home Office must normally provide written notice, reasons and details of the right of appeal. Notice can be withheld in limited circumstances, including where there is insufficient information to serve it or where this is reasonably necessary for national security or the investigation or prosecution of serious crime.

An appeal is normally heard by the First-tier Tribunal. It goes to the Special Immigration Appeals Commission where the case is certified for national security, international-relations or other public-interest reasons. Closed evidence and a special advocate may be used. Deadlines are strict, so obtain advice immediately. Our guides to the legal perks and pitfalls of dual citizenship and the pros and cons of dual citizenship explain related issues.

How deprivation affects wider affairs

Deprivation removes British citizenship and may remove the right of abode derived from it, although some people hold that right independently. A British passport may be cancelled, and the person may become subject to immigration control, detention, exclusion or removal.

Where this affects children or a partner, family law solicitors and child custody solicitors may assist with care arrangements. Property matters may require conveyancing solicitors, while a power of attorney can let a trusted person manage UK affairs. There may also be tax and residence questions to address.

Get advice quickly if your status is questioned

If you receive a notice or are concerned about information used in an earlier immigration or citizenship application, speak to the team at Athi Law without delay.