Does Israel Require You to Renounce Other Citizenship?
One of the most persistent misconceptions about making Aliyah is that it requires giving up your previous citizenship. This is simply not true for olim who receive Israeli citizenship under the Law of Return. When you make Aliyah and receive Israeli citizenship, Israel does not require you to take any action with respect to your existing nationality. The Israeli authorities will not ask you to sign a renunciation declaration, will not require proof that you have given up your prior passport, and will not contact your home country's authorities to inform them of your new Israeli citizenship. From Israel's perspective, the moment you receive your teudat zehut (Israeli identity card) and teudat oleh (immigrant's certificate), you are an Israeli citizen — full stop, with no conditions attached regarding your prior nationality.
This is a critically important distinction from the naturalization pathway, which operates under a different legal framework. The Israeli Citizenship Law 1952 — which governs naturalization for non-Jewish individuals who do not make Aliyah — does include a renunciation requirement. But the Law of Return, which is the basis for olim citizenship, operates independently and does not impose this condition. The Israeli government has been clear in its practice: olim are not expected, asked, or required to renounce prior citizenship as part of the Aliyah process. This policy reflects Israel's recognition that requiring renunciation would significantly deter immigration from countries whose nationals are reluctant to give up their passports, undermining the very purpose of the Law of Return.
What Israel's silence on the matter means in practice is that the question of whether you can hold dual citizenship — Israeli and your prior nationality — is entirely a matter of your home country's law. Israel makes no notification to foreign governments when an individual acquires Israeli citizenship. There is no automatic reporting mechanism, no international treaty obligation that compels disclosure, and no expectation that the new oleh will self-report to their home country's consulate. Whether or not you inform your home country that you have become an Israeli citizen is, in nearly all cases, a decision that rests with you — and the consequences of that decision, if any, depend entirely on what your home country's laws say about dual citizenship and about loyalty obligations to that state.
US Citizens Making Aliyah: Can I Keep My US Passport?
For American citizens making Aliyah, the answer to the citizenship retention question is clear and reassuring: yes, you can keep your US citizenship. The landmark 1967 US Supreme Court decision in Afroyim v. Rusk held that American citizenship is a constitutional right that cannot be revoked by the government without the citizen's voluntary consent. This decision effectively eliminated the US government's former practice of stripping citizenship from Americans who naturalized in foreign countries. Under current US law and State Department practice, a US citizen who becomes an Israeli citizen — whether through Aliyah or through the standard naturalization process — does not lose their American citizenship unless they specifically intend to relinquish it. The mere act of making Aliyah and receiving Israeli citizenship, absent a voluntary declaration of renunciation, does not trigger any loss of US citizenship.
In practical terms, this means that American olim are dual citizens from the moment they receive their Israeli citizenship, fully and legally. They retain all rights of US citizenship: the ability to vote in US federal elections, to hold a US passport, to reside in the United States without restriction, and to access US consular services abroad. They also retain the obligations of US citizenship that follow them wherever they live — most significantly, the obligation to file annual US federal income tax returns reporting worldwide income. The existence of Israeli tax exemptions for foreign income does not eliminate the US filing obligation; it simply means that there may be little or no US tax owed on income that is also exempt in Israel. US citizens making Aliyah should consult with a tax professional experienced in the expatriate community to understand how the US-Israel tax treaty and foreign tax credit system applies to their specific situation.
Rules for Olim from Other Countries
Citizens of the United Kingdom, France, Canada, and Australia are generally in a position similar to American olim: these countries broadly permit their nationals to hold multiple citizenships, and making Aliyah will not automatically cause loss of the prior nationality. A British citizen who makes Aliyah continues to hold a valid British passport and all associated rights. A French or Canadian citizen in the same situation retains their original nationality without any formal action required. These countries have moved away from the restrictive dual citizenship regimes of earlier generations and now accept, as a practical matter, that their nationals may acquire foreign citizenships for a variety of legitimate reasons. In most of these countries, you are not even legally required to notify your home government that you have acquired a foreign citizenship, though it is worth verifying the current rules at the time of your Aliyah.
Germany presents a significantly more complex situation and one that demands careful advance planning. German law generally operates on the principle that acquiring a foreign citizenship voluntarily results in automatic loss of German citizenship. This means that a German citizen who makes Aliyah and receives Israeli citizenship could, under the default rules, automatically lose their German citizenship at the moment Israeli citizenship is granted — an irreversible consequence that occurs without any formal notice or warning. However, German law provides a mechanism to prevent this outcome: the Beibehaltungsgenehmigung, or citizenship retention permit. A German citizen who intends to make Aliyah and wishes to retain German citizenship must apply for this permit from the relevant German authority — typically the consulate or embassy — before completing the acquisition of foreign citizenship. If the retention permit is granted and is in hand before Aliyah is completed, German citizenship is preserved. The application process can take months, so this planning must begin well in advance of the intended Aliyah date. German citizens considering Aliyah should treat the Beibehaltungsgenehmigung application as an essential first step, not an afterthought.
Citizens of countries that were formerly part of the Soviet Union — Russia, Ukraine, Kazakhstan, Moldova, Belarus, and others — face a varied landscape. Rules differ substantially from country to country, and the legal position in many of these states has changed over time, sometimes in response to political developments. Some FSU countries formally prohibit dual citizenship; others permit it in practice even if the formal legal position is ambiguous. Citizens of South American countries generally face fewer obstacles, as most Latin American nations have moved toward permitting dual citizenship. Citizens of most Middle Eastern and some Asian countries may face the most restrictive regimes, and making Aliyah could in some cases result in citizenship loss or the creation of other legal complications in the home country. Given the variability of these rules and their tendency to change, any oleh from a country with restrictions should obtain current legal advice from an attorney familiar with both the home country's citizenship law and Israeli immigration law before proceeding with Aliyah.
When Does Renunciation Become an Issue?
There are two main scenarios in which renunciation of foreign citizenship — either of Israeli citizenship or of the prior citizenship — becomes a genuine legal issue for someone connected to Israel. The first is naturalization through the standard process, rather than Aliyah. As noted earlier, the Israeli Citizenship Law 1952 governs naturalization for non-Jewish applicants who go through the family reunification process to become Israeli citizens. Unlike the Law of Return pathway, the naturalization process formally requires the applicant to renounce prior citizenship. In practice, the implementation of this requirement varies, and many applicants from countries with liberal dual citizenship laws effectively retain their prior nationality even after naturalizing in Israel. But the formal legal position is clear: naturalization applicants are required to demonstrate willingness to renounce and, in some cases, to complete the renunciation before Israeli citizenship is finalized.
The second scenario involves Israeli military service. Israel requires most Jewish Israeli citizens to complete mandatory military service (tzav giyus), with male citizens typically serving two years and eight months and female citizens serving two years, though these periods change periodically. Critically, some countries — not including the United States or the United Kingdom, which have largely eliminated such provisions — treat voluntary service in a foreign military as a ground for loss of citizenship. For olim from countries that retain such provisions, serving in the Israel Defense Forces could theoretically trigger citizenship loss in the home country, even if making Aliyah itself did not. The Israeli military service obligation is another reason why pre-Aliyah consultation with an attorney who understands both systems is important: understanding your military service obligations in Israel and the potential implications for your home country status allows you to plan appropriately, particularly if you are arriving at an age that would subject you to full mandatory service rather than the limited reserve duty applicable to older new immigrants.
Practical Implications of Dual Citizenship After Aliyah
For olim who successfully retain dual citizenship — Israeli and their prior nationality — the practical management of two citizenships involves some specific rules and considerations. The most important is the Israeli legal requirement that Israeli citizens enter and exit Israel using their Israeli passport. Using a foreign passport to enter Israel when you hold Israeli citizenship is not permitted under Israeli law. When traveling outside of Israel, you can use your foreign passport freely — and in many cases, this is practical and convenient, particularly when entering countries that may scrutinize Israeli-stamped passports. The general rule of thumb is: Israeli passport in and out of Israel, foreign passport everywhere else. Keeping both passports valid and up to date is therefore important for olim who travel internationally.
Beyond travel documents, dual citizenship creates intersecting obligations in multiple legal systems simultaneously. Tax filing obligations may exist in both Israel and the home country, requiring coordination with advisors in both jurisdictions. Estate planning becomes more complex when assets, family members, and legal claims are distributed across multiple countries — an Israeli will may not automatically govern assets held abroad, and foreign estate tax rules may apply to Israeli assets. For olim who retain citizenship in countries with significant reserve military obligations, the question of whether serving in the Israeli military (or reserve duty) could trigger consequences under the home country's military service law should be assessed. Finally, any significant life event — marriage, divorce, adoption, birth of a child, acquisition or sale of property — may have legal ramifications in both legal systems, and awareness of both sets of rules is essential to avoid unintended consequences.