Does becoming an Israeli citizen affect my British citizenship?

British nationals planning aliyah often worry that the moment they pick up an Israeli teudat zehut, the Home Office quietly cancels their British status. That fear is misplaced. The United Kingdom is one of the most relaxed countries in the world about dual nationality, and Israel welcomes it for people arriving under the Law of Return. You can hold both, and most British olim do.

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Detailed Explanation

The UK position is the simple part. Under the British Nationality Act 1981, a British citizen does not lose that status by acquiring another nationality. There is no automatic forfeiture, no reporting requirement, and nothing you need to do to "keep" your British citizenship after you become Israeli. It simply continues. The only way to stop being British is to renounce deliberately, by submitting Form RN to HM Passport Office and paying the fee, and that is a step almost no oleh has any reason to take.

The Israeli side is equally accommodating for people making aliyah. A person who immigrates under the Law of Return 1950 acquires Israeli citizenship without being required to give up their existing nationality. This is different from the position of a foreigner who naturalises in Israel by the ordinary route, who can be asked to renounce a prior citizenship. For a British Jew making aliyah, dual nationality is the normal outcome, confirmed by the Population and Immigration Authority when it issues the oleh certificate and the teudat zehut.

What does change is how each country treats you once you are dual, and this is where non-residents get caught out. Inside Israel, the authorities regard you primarily as Israeli, which means the British consulate's ability to intervene on your behalf is limited while you are on Israeli soil. Israeli obligations attach to you as a citizen, including the way military service rules can apply to your children. On the British side, your access to the NHS depends on being ordinarily resident in the UK, not on holding a British passport, so moving your life to Israel can end your NHS entitlement even though your citizenship is untouched. None of this affects your right to hold both passports. It affects which set of rules governs you in which place, a distinction worth understanding before you move, and one we cover further in our overview of Israeli dual citizenship rights and obligations.

In Practice: Under Section 2 of the Citizenship Law 1952, a British national who makes aliyah acquires Israeli citizenship automatically and without renouncing British nationality, and the Population and Immigration Authority issues the teudat zehut and oleh certificate on arrival, often the same day. The absorption basket (sal klita) paid to new immigrants generally runs from roughly NIS 11,000 to over NIS 25,000 per household across the first months, while anyone who later wants to drop British citizenship must file Home Office Form RN, which takes several weeks to process.

Key Considerations

• The British Nationality Act 1981 does not strip citizenship from someone who acquires another nationality.
• Olim under the Law of Return keep their existing citizenship; only some ordinary naturalisations require renunciation.
• In Israel you are treated as Israeli first, which limits British consular help on Israeli soil.
• NHS access turns on ordinary residence, not citizenship, so relocating can end it.
• Renouncing British citizenship is a deliberate, paid Home Office process, not an automatic result of aliyah.

When to Consult a Lawyer

This question typically requires professional legal advice when:

• You hold assets or run a business in both countries and need to understand which tax residence rules apply.
• You are concerned about how Israeli military service obligations may reach children who become citizens.
• You are considering renouncing one citizenship and want the consequences mapped before you act.

A qualified adviser should walk you through the practical effects of dual status, because the citizenship is rarely the issue; the residence and tax consequences are.

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Speak With an Israeli Attorney

We advise British olim on what dual nationality means for tax residence, property, and family obligations in Israel, and on the rare cases where renouncing a citizenship genuinely makes sense.

Contact us for a confidential initial consultation.