A constitutional referendum was held in Kazakhstan on 15 March 2026 to determine whether to approve the draft of a new constitution of Kazakhstan. According to official results, it was supported by nearly 90% of voters, with 10% against, and a turnout of 73%, the highest for any national vote since 2019 and the largest for a referendum since 1995. This was the fifth referendum since Kazakhstan's independence and the third constitutional referendum since 2022.
The referendum followed President Kassym-Jomart Tokayev's 2025 State of the Nation Address, in which he announced parliamentary reforms aimed at amending the 1995 Constitution of Kazakhstan, with a constitutional referendum initially planned for 2027 to implement this package of amendments. However, discussions within the working group expanded the scope of the proposed reforms—including restructuring parliament, redefining the balance of powers between state institutions, and expanding constitutional guarantees of human, digital, and environmental rights—prompting consideration of an entirely new constitution. A Constitutional Commission was subsequently established to draft the new text, and after a series of meetings and public consultations that gathered thousands of proposals from citizens and experts.
The draft constitution proposed significant institutional changes, rewriting approximately 84% of the 1995 Constitution and introducing 95 articles, including replacing the bicameral Parliament of Kazakhstan with a unicameral Kurultai, reintroducing the office of vice president, ensuring the separation of religion and state, and revising provisions related to the judiciary, civil rights, and the structure of the executive branch. Some political analysts and civil society groups argued that certain provisions could strengthen presidential authority and affect presidential succession. The draft also constitutionally codified the prohibition of same-sex marriage in Kazakhstan by defining marriage as a union between a man and a woman. Following its submission to Tokayev on 11 February 2026, he signed a decree on holding the republican referendum.
The referendum campaign was led by the National Coalition "For the People's Constitution of a Fair and Progressive Kazakhstan", which organized nationwide events, online initiatives, and promotional materials in support of the draft constitution. While authorities framed the vote as a modernization effort, critics reported legal pressure, fines, social media censorship, and restrictions on independent polling. Legal challenges to the referendum were rejected by the courts. Due to legal and social circumstances, the draft constitution was euphemistically referred to as "sour cream" on social media to avoid crackdown.
Exit polls released around midnight of 16 March 2026 indicated strong support for the proposed constitution. Later that morning, the Central Referendum Commission announced preliminary results confirming that an overwhelming majority of voters had approved the proposal. Final results were confirmed on 17 March. On the same day, Tokayev signed a decree officially adopting the new constitution, which took effect on 1 July 2026. The date of the referendum, 15 March, was also designated as an annual Constitution Day.
Background
Following Kazakhstan's independence in 1991, the Constitution of Kazakhstan has undergone several revisions and replacements through referendums and legislative amendments. The 1995 constitutional referendum replaced the 1993 constitution, establishing a strong semi-presidential system and a bicameral parliament consisting of the Mäjilis and the Senate. The bicameral Parliament of Kazakhstan was controversial, as the unitary state had no precedent for two chambers, it failed to improve representation or legislative quality, and the rise of Amanat's ruling party dominance weakened the Senate, which political scientist Sultanbek Sultangaliev described as the upper house as a "Chamber of Honorary Pensioners" duplicating the Mäjilis' functions, prompting democratic opposition-led calls since the late 1990s and early 2000s to return to a unicameral system.
In the years that followed, further amendments were introduced to the 1995 constitution, gradually adjusting the balance of power between the presidency, parliament, and other state institutions. In June 2022, a nationwide referendum supported by 77% of voters approved a major package of amendments to the 1995 Constitution. The reforms reduced the powers of the presidency, strengthened Parliament, abolished the privileged constitutional status of the Elbasy (Leader of the Nation), and reinforced provisions on human rights and institutional accountability. Officials presented the referendum as laying the foundations of a "New Kazakhstan" in the aftermath of the January Events. A separate package of amendments was adopted by Parliament in September 2022, introducing a new restriction on the presidency: a single, non-renewable seven-year term. The same measure also restored the capital's name from Nur-Sultan to Astana.
Following President Kassym-Jomart Tokayev's political reset that concluded with the 2023 legislative elections, some Kazakh and independent media speculated that the authorities might once again consider constitutional reforms, either to extend presidential powers or restructure state institutions. In January 2024, President Tokayev dismissed these rumours in an interview with Egemen Qazaqstan, asserting that the seven-year presidential term "will never change again" and that no further changes to the Constitution were planned for the near future.
On the eve of the 30th anniversary of the 1995 Constitution of Kazakhstan, debate over the document's future arose as Kazakh online media reported an independently drafted third constitution by legal scholar Jumageldy Eliubaev, proposing changes to the structure of government, parliamentary powers, presidential terms, and state symbolism. According to Orda.kz, Eliubaev's draft—published on the legal information platform "PARAGRAF" before later being shortly removed—allegedly attracted interest within the presidential administration amidst lingering uncertainty over the direction of Kazakhstan's constitutional future. However, during the address, President Tokayev noted that while proposals for a new constitution had been discussed, reforms over the years, including changes after the 2022 referendum, had modernized the Basic Law and preserved its core principles, ruling out calls for a complete replacement.
Nevertheless, on 8 September 2025, President Tokayev, at the State of the Nation Address, proposed holding a referendum on parliamentary reforms, noting that the proposals should be thoroughly discussed over the coming year, with a referendum possibly taking place in 2027.
Electoral system In Kazakhstan, a constitutional referendum is defined as a republican referendum (). Republican referendums are regulated by the Constitutional Law No. 2592 "On Republican Referendum" in the 1995 Constitution of Kazakhstan, which defines them as "a national vote on drafts of the Constitution, constitutional laws, laws, and decisions on other most important issues of public life in the Republic of Kazakhstan".
In accordance with Article 10 of the Constitutional Law "On Republican Referendum", the exclusive right to call a republican referendum is reserved to the president of Kazakhstan. At the same time, Parliament, the government, or at least 200,000 citizens representing all regions of the republic may submit a proposal to the president to hold a referendum.
Under Article 17, the president may call a referendum on proposed constitutional amendments, introduce amendments and additions to the Constitution without conducting a referendum, or reject the proposed changes entirely. A presidential rejection may be overridden by a four-fifths majority vote of both houses of Parliament. Article 18 provides that a decision to hold a referendum is established by presidential decree, which sets the date of the vote, the issue or issues submitted to referendum, and the legal consequences of its outcome. The text of the draft Constitution or amendments must subsequently be published in the mass media.
Pursuant to Article 19, a referendum must be held no earlier than one month and no later than three months after the issuance of the decree, although the president may establish different terms in exceptional cases.1
Article 31 stipulates that decision on the issue submitted to referendum is considered as adopted only if at least 50% of registered voters participate, a simple majority vote "yes" and for constitutional changes, more than half of voters in at least two-thirds of the regions, cities of republican significance (including the capital of Astana) approve it.1
Drafting and proposal On 8 October 2025, President Tokayev signed a decree establishing a 33-member Working Group on Parliamentary Reform, led by State Counsellor Erlan Qarin. The group includes parliamentary deputies from the Mäjilis and the Senate, members of the Assembly of People of Kazakhstan, leaders of parliamentary party factions, as well as heads of scientific institutes, prominent scholars specializing in constitutional law and the theory of state and law, and experts and members of the National Kurultai.
Between October 2025 and January 2026, the working group held a total of six meetings, during which seven political parties and 16 public organizations submitted proposals for constitutional reform, and discussions focused on the composition of the future parliament, its term of office, number of deputies, quotas, electoral procedures, interaction with other branches of power, the main directions of the legislative process, and the parliament's powers in ensuring the functioning of state bodies.
During the 5th meeting of the National Kurultai, Tokayev assessed that the anticipated number of amendments would be "much greater" and described the process as a step toward adopting a new Constitution.
Drafting On 21 January 2026, Tokayev signed a decree establishing the Constitutional Commission, composed of over 120 members, including National Kurultai representatives, prominent lawyers, media leaders, local assembly (mäslihat) chairpersons, regional public council members, and other professionals, and headed by Constitutional Court chairwoman Elvira Äzimova.
On 31 January, after six meetings, the Constitutional Commission reported to Tokayev that planned amendments affecting about 84% of the 1995 constitution had led it to conclude that a completely new Constitution should be drafted, proposed publishing the first full draft for public discussion. Mäjilis deputy Snejanna Imasheva noted that this approach complies with Paragraph 9 of Article 26 of the Law "On Legal Acts", which requires adoption of a new edition if more than half of a legal act is amended. The first draft of the new Constitution was published the same day. For the first time, the draft constitution's preamble defines human rights and freedoms as the Kazakh state's top priority, including the right to life, personal inviolability, data protection, and a Miranda rule.
Throughout early February, the Constitutional Commission continued to hold meetings to refine the draft constitution, incorporating public and expert feedback. Among the revisions were adjustments to the wording of the provision on the status of the Russian language in state institutions, clarification of constitutional guarantees concerning free education and universal health care, proposals to strengthen protections of private property and housing rights, and discussions on institutional mechanisms such as the grounds and procedure for the dissolution of Parliament.
Draft constitution