Introduction
Equality before the law is one of the fundamental principles of the Turkish constitutional order. It requires that individuals in the same legal position be treated equally by the State and that any different treatment be based on objective, reasonable and constitutionally acceptable grounds. In Türkiye, equality is not merely a political ideal or moral principle. It is a binding constitutional rule that applies to legislative, executive and judicial authorities.
The main constitutional basis of equality before the law is Article 10 of the Constitution of the Republic of Türkiye. Article 10 provides that everyone is equal before the law without distinction as to language, race, colour, sex, political opinion, philosophical belief, religion, sect or any similar grounds. It also provides that men and women have equal rights and that the State has an obligation to ensure that this equality exists in practice. Measures taken for that purpose cannot be interpreted as contrary to the principle of equality.
This provision plays a central role in Turkish constitutional law. It affects legislation, administrative decisions, court judgments, public employment, education, taxation, social security, family law, labor law, criminal justice and access to public services. It is also closely connected to the rule of law, legal certainty, proportionality, human dignity and the prohibition of discrimination.
1. Constitutional Basis of Equality Before the Law
Article 10 of the Turkish Constitution is titled “Equality before the law.” It expressly prohibits discrimination based on language, race, colour, sex, political opinion, philosophical belief, religion, sect and similar grounds. The phrase “or any such grounds” is important because it shows that the list is not closed. The Constitutional Court has stated that the potential scope of equality and non-discrimination is not limited to the listed grounds and that similar grounds may also fall within Article 10.
This open-ended wording allows constitutional equality to respond to changing social, legal and economic conditions. Discrimination may occur not only on traditional grounds such as race or religion, but also through distinctions based on disability, marital status, age, social origin, employment status, economic condition or other comparable circumstances.
Article 10 also binds all state authorities. The Constitutional Court has emphasized that the principle of equality regulated among the general principles of the Constitution is binding on legislative, executive and judicial organs, administrative authorities and other institutions. The last paragraph of Article 10 further provides that state organs and administrative authorities must act in compliance with equality before the law in all their proceedings.
2. Equality as a General Constitutional Principle
Equality before the law is both an individual right and an objective constitutional principle. As an individual right, it protects persons against discriminatory or arbitrary treatment. As an objective principle, it guides the entire legal system and requires public authorities to act consistently, rationally and fairly.
The equality principle does not mean that every person must be treated identically in every situation. The law may differentiate between persons, groups or legal situations when there is a legitimate reason. However, persons in the same or comparable legal position must not be treated differently without objective and reasonable justification.
For example, different tax rates may be applied to different types of income if there is a legitimate fiscal policy reason. Different rules may apply to public servants and private employees because their legal statuses are different. Different protections may be granted to children, elderly persons or persons with disabilities because positive measures may be necessary to achieve substantive equality.
The constitutional problem arises when different treatment is arbitrary, discriminatory, disproportionate or unrelated to a legitimate aim.
3. Formal Equality and Substantive Equality
Equality before the law has both formal and substantive dimensions.
Formal equality means that the law must apply equally to persons in the same legal position. Public authorities must not discriminate between individuals based on prohibited or irrelevant grounds. Courts must apply legal rules consistently. Administrative bodies must avoid arbitrary distinctions.
Substantive equality goes further. It recognizes that equal treatment in form may not always create real equality in practice. Some groups may face historical, social or economic disadvantages. In such cases, the State may need to take positive measures to eliminate actual inequality.
Article 10 expressly supports substantive equality in relation to men and women. It states that men and women have equal rights and that the State must ensure that this equality exists in practice. It also provides that measures taken for this purpose shall not be interpreted as contrary to equality.
This means that the Constitution does not prohibit all differential treatment. On the contrary, it allows positive measures designed to remove existing inequalities.
4. Gender Equality Under Article 10
Gender equality is expressly protected under the Turkish Constitution. Article 10 provides that men and women have equal rights and imposes a positive obligation on the State to ensure that this equality exists in practice. This wording is significant because it goes beyond formal non-discrimination.
The State must not merely avoid discrimination against women. It must also take appropriate measures to create real equality where social, economic or institutional barriers exist. This may be relevant in employment, education, political participation, family law, social security, protection against violence, maternity rights and access to public services.
The Constitutional Court has examined gender-related equality issues in individual applications. For instance, in a case concerning a married woman’s use of her maiden name, the applicant alleged violations of Articles 10, 12, 17 and 90 of the Constitution because the relevant legal framework prevented her from using her maiden name alone after marriage.
Gender equality disputes often involve the relationship between equality, private life, family life and human dignity. Therefore, Article 10 should not be read in isolation. It must be interpreted together with other constitutional rights and international human rights standards.
5. Positive Measures and Affirmative Action
Article 10 expressly recognizes that measures taken to ensure equality between men and women cannot be interpreted as contrary to the principle of equality. The same constitutional framework also protects measures taken for children, elderly persons, persons with disabilities, widows and orphans of martyrs, and veterans.
This is an important constitutional recognition of affirmative action. Positive measures aim to remove structural disadvantages and create real equality. They do not violate equality merely because they treat certain groups differently. On the contrary, they may be necessary to achieve constitutional equality.
For example, special employment measures for persons with disabilities, protective rules for children, social benefits for vulnerable groups or measures supporting women’s participation in public life may be constitutionally legitimate if they pursue the goal of substantive equality.
However, positive measures must still be reasonable and proportionate. They should not create unnecessary or excessive disadvantages for others. The constitutional test remains one of objective justification and fair balance.
6. The Prohibition of Arbitrary Treatment
Equality before the law is closely connected to the prohibition of arbitrariness. A public authority acts arbitrarily when it treats similar cases differently without a rational explanation or when it applies legal rules inconsistently.
Arbitrary treatment may occur in many areas. An administrative authority may impose a fine on one person but not on another person in the same situation. A public institution may reject one application while accepting another identical application. A court may apply the same legal rule differently in comparable cases without explaining the distinction.
However, not every different judicial outcome automatically violates equality. Courts may reach different conclusions where facts, evidence, procedural history or legal context differ. A constitutional equality violation generally requires a comparable situation and unjustified different treatment.
Therefore, an equality argument must be concrete. It should identify the comparator, explain why the applicant and comparator are in the same or similar legal position, show the difference in treatment and demonstrate why that difference lacks objective and reasonable justification.
7. Equality and the Rule of Law
Equality before the law is an essential component of the rule of law. A legal system cannot be considered predictable or fair if similar cases are treated differently without justification. The rule of law requires legal certainty, foreseeability, non-arbitrariness and judicial protection.
Article 11 of the Constitution provides that constitutional provisions are binding fundamental legal rules for legislative, executive and judicial organs, administrative authorities, other institutions and individuals, and that laws cannot be contrary to the Constitution. This rule reinforces the binding force of Article 10.
In practice, equality supports legal certainty. Individuals and companies should be able to expect that laws will be applied consistently. Public authorities should not grant privileges or impose burdens based on irrelevant criteria. Courts should explain why similar cases are treated differently.
For businesses and investors, equality before the law is particularly important. Administrative licensing, public procurement, taxation, regulatory sanctions and access to judicial remedies must be based on objective rules rather than arbitrary preferences.
8. Equality in Legislation
The legislature is bound by the principle of equality. Parliament may enact laws that classify persons, rights, duties or institutions differently. However, such classifications must have a legitimate aim and reasonable basis.
A law may violate Article 10 if it treats persons in the same legal situation differently without objective justification. It may also violate equality if it treats persons in significantly different situations identically in a way that creates unfairness.
Legislative equality review often involves asking several questions:
Does the law create different treatment? Are the persons or groups comparable? What is the aim of the distinction? Is the distinction objectively and reasonably justified? Is the measure proportionate? Does the law create discriminatory or arbitrary consequences?
This analysis may arise in taxation, social security, public employment, criminal law, family law, electoral law, education, professional regulations and administrative sanctions.
9. Equality in Administrative Acts
Administrative authorities are expressly required to act in compliance with the principle of equality in all their proceedings. This includes ministries, municipalities, regulatory authorities, public universities, professional bodies and other administrative institutions.
Equality in administration requires consistent decision-making. Public authorities must apply the same legal criteria to similar applications. Administrative discretion must not become arbitrary discretion. Where the administration has discretion, it must exercise it according to public interest, objective criteria and proportionality.
Administrative equality disputes may arise in public employment appointments, disciplinary sanctions, tenders, licensing, zoning decisions, social benefits, student admissions, public housing, tax assessments and administrative fines.
For example, if two businesses commit the same regulatory violation under similar circumstances but only one receives a severe sanction, the authority must justify the difference. If a municipality grants zoning advantages to some owners but refuses similarly situated owners without reason, equality concerns may arise.
10. Equality in Judicial Proceedings
Equality before the law also affects judicial proceedings. Courts must apply legal rules consistently and must treat parties fairly. The principle is closely linked to the right to a fair trial, equality of arms and judicial impartiality.
In individual applications, applicants often allege that courts treated their case differently from similar cases. However, the Constitutional Court does not act as a general court of cassation. It does not review every inconsistent judicial decision as a constitutional violation. An applicant must show that the difference is arbitrary, unjustified and has a constitutional dimension.
The Constitutional Court has rejected certain equality claims where the complaint merely concerned appellate review or disagreement with the outcome of ordinary proceedings. It has emphasized that individual application is not designed to re-examine matters that should be assessed by ordinary legal remedies.
Therefore, equality claims based on judicial inconsistency must be prepared carefully. The applicant must demonstrate comparable cases, unjustified divergence and the constitutional significance of the difference.
11. Equality and the Right to a Fair Trial
Equality before the law and the right to a fair trial often overlap. In judicial proceedings, equality may appear as equality of arms, which requires that each party have a reasonable opportunity to present its case without being placed at a substantial disadvantage compared with the opposing party.
A court may violate fair trial equality if it allows one party to submit evidence while denying the other party the same opportunity, relies on documents not communicated to one side, or gives procedural advantages to one party without justification.
However, equality before the law under Article 10 and equality of arms under fair trial rights are not identical. Article 10 concerns discriminatory or unjustified differential treatment more broadly. Equality of arms concerns procedural balance between parties within judicial proceedings.
A well-prepared constitutional application should identify which type of equality violation is alleged. If the complaint concerns discriminatory treatment based on a protected ground, Article 10 should be emphasized. If it concerns procedural imbalance, the right to a fair trial should also be invoked.
12. Equality in Labor and Employment Law
Equality before the law has major practical importance in labor and employment disputes. Although many employment disputes arise between private parties, the State has positive obligations to provide legal protection against discrimination and unequal treatment.
Labor equality may involve gender discrimination, unequal pay, disability discrimination, union discrimination, pregnancy-related dismissal, age-based treatment, workplace harassment or unequal access to promotion. Public employment disputes may also involve recruitment, appointment, promotion, disciplinary measures, transfer decisions and termination of public service.
In labor law, equality has both constitutional and statutory dimensions. The Constitution provides the general equality principle, while labor legislation may provide specific rules on equal treatment and non-discrimination.
Where public institutions are involved, Article 10 applies directly to administrative acts. In private employment disputes, courts must interpret and apply labor law in a manner consistent with constitutional equality.
13. Equality in Family Law
Family law is another field where constitutional equality is highly relevant. Gender equality, children’s rights, inheritance, surname, custody, alimony and protection against domestic violence may all involve equality principles.
The Constitution’s recognition that men and women have equal rights is especially important in family law. Legal rules and judicial practices must not reinforce unjustified gender stereotypes. Courts should evaluate disputes based on objective criteria and the best interests of the child where children are involved.
Surname disputes, matrimonial property disputes and custody-related cases may raise questions of equality, private life and family life. In this field, constitutional equality often interacts with international human rights law, especially the European Convention on Human Rights and relevant anti-discrimination standards.
14. Equality in Tax Law and Public Burdens
Taxation is a field where equality is essential. The State may impose taxes and public financial obligations, but similarly situated taxpayers must be treated consistently. Tax distinctions must have objective and reasonable justification.
The legislature may create different tax regimes based on income, type of activity, sector, property category or public policy goals. Such distinctions are not automatically unconstitutional. However, arbitrary or disproportionate tax distinctions may violate equality and property rights.
For example, if two taxpayers in the same legal and economic position are treated differently without a statutory basis or objective justification, equality concerns may arise. If a tax burden targets a particular group without reasonable grounds, constitutional scrutiny may be necessary.
Tax equality is also connected to legal certainty. Taxpayers must be able to foresee their obligations and trust that public authorities will apply tax rules consistently.
15. Equality in Criminal Law
Criminal justice must comply with equality before the law. Similar offences and offenders in comparable situations should be treated according to consistent legal standards. Prosecutorial decisions, detention measures, sentencing, probation, enforcement of sentences and access to defense rights may all raise equality concerns.
However, criminal justice also requires individualization. Different sentences may be justified based on the gravity of the offence, criminal record, role of the accused, degree of fault, remorse, damage caused and other legally relevant factors.
A constitutional equality problem arises when differential treatment is based on irrelevant, discriminatory or arbitrary grounds. For example, unequal application of procedural rights or selective prosecution without objective basis may raise serious constitutional concerns.
Equality in criminal law is also connected to the presumption of innocence, legality of crimes and punishments, fair trial rights and prohibition of unlawful evidence.
16. Equality and Political Rights
Equality before the law is closely connected to democratic participation. Political rights must be exercised on the basis of equal citizenship, subject to lawful and proportionate restrictions.
Voting rights, eligibility for public office, political party activities, electoral competition and public service access may all involve equality concerns. The State must ensure that political participation is not restricted arbitrarily or discriminatorily.
However, certain political rights may be reserved for Turkish citizens. This does not necessarily violate equality because citizenship may be a constitutionally relevant criterion in political participation. Nevertheless, restrictions must be based on law and interpreted in line with democratic principles.
17. Equality and Foreigners
Article 10 uses the word “everyone,” which means that equality before the law is not limited to Turkish citizens. Foreign individuals may benefit from equality protection where the relevant right or legal situation applies to them.
However, the Constitution also allows certain rights of foreigners to be restricted by law in accordance with international law. Therefore, equality claims by foreigners require careful analysis. The first question is whether the foreigner and the Turkish citizen, or two groups of foreigners, are in a comparable legal position. The second question is whether the different treatment has a lawful and objective basis.
Foreigners may raise equality arguments in matters such as residence, deportation, property, business activities, education, access to court, administrative fines and public services, depending on the legal context.
For foreign investors and companies, equality before the law is especially relevant in licensing, taxation, public procurement, regulatory supervision and access to judicial remedies.
18. Equality and International Human Rights Law
Equality before the law in Türkiye is also influenced by international human rights law. Article 90 of the Constitution provides that international agreements duly put into effect have the force of law and that, in case of conflict between domestic laws and international agreements concerning fundamental rights and freedoms, international treaty provisions prevail.
This rule is especially important in non-discrimination cases. The European Convention on Human Rights, its protocols, and other human rights instruments may support constitutional equality arguments. The Constitutional Court’s individual application system is also connected to rights protected by the Constitution and falling within the scope of the European Convention on Human Rights.
As a result, lawyers preparing equality claims should consider not only Article 10 of the Constitution but also relevant international human rights standards.
19. Individual Application Before the Constitutional Court
Individual application before the Constitutional Court is a significant remedy for equality and discrimination claims. Under the individual application mechanism, persons may apply to the Constitutional Court when they claim that a public authority violated a fundamental right protected by the Constitution and falling within the scope of the European Convention on Human Rights, after ordinary remedies are exhausted.
However, equality claims in individual applications must be carefully framed. The applicant should identify the protected ground or comparable legal situation, show the differential treatment, demonstrate that the treatment lacks objective and reasonable justification, and connect the equality complaint to a right falling within the scope of individual application.
The Constitutional Court has examined Article 10 equality claims in various contexts. In one decision, the Court emphasized that Article 10’s reference to “similar grounds” extends the scope of prohibited discrimination beyond the listed categories and that state organs and administrative authorities are responsible for acting in compliance with equality and non-discrimination.
Individual application is not a general appeal mechanism. Therefore, a mere claim that another person received a better outcome may not be sufficient. The applicant must show a constitutional equality problem, not only an ordinary legal disagreement.
20. Practical Litigation Strategy in Equality Cases
A successful equality argument should be concrete, comparative and evidence-based. It is not enough to state that the applicant was treated unfairly. The claim should identify a legally comparable person or group, explain the difference in treatment and show why the distinction is unjustified.
In administrative cases, lawyers should request documents showing how similar applications were handled. In labor cases, employment records, wage tables, promotion decisions, disciplinary files and witness statements may be relevant. In tax or regulatory cases, comparable decisions and administrative practice may be important. In judicial inconsistency claims, final judgments in genuinely similar cases should be submitted.
The legal reasoning should follow a clear structure:
First, identify the protected right or legal interest. Second, establish comparability. Third, show different treatment. Fourth, examine the alleged legitimate aim. Fifth, argue why the measure lacks objective and reasonable justification or is disproportionate. Sixth, connect the equality violation to the Constitution and, where relevant, international human rights law.
Conclusion
Equality before the law is one of the essential pillars of the Turkish constitutional system. Article 10 of the Constitution guarantees that everyone is equal before the law without distinction based on language, race, colour, sex, political opinion, philosophical belief, religion, sect or similar grounds. It also expressly protects gender equality and recognizes positive measures designed to achieve equality in practice.
The equality principle binds all state organs, including the legislature, executive, judiciary and administrative authorities. It requires consistent, objective and non-arbitrary treatment. It does not prohibit all distinctions, but it prohibits distinctions that lack objective and reasonable justification.
In Turkish legal practice, equality before the law may arise in administrative law, labor law, family law, tax law, criminal law, public employment, political rights, social security, education, property disputes and judicial proceedings. It is closely connected to the rule of law, fair trial rights, proportionality, legal certainty and human dignity.
For individuals, companies, foreign nationals and lawyers, equality is a practical constitutional tool. A well-prepared equality claim can challenge arbitrary administrative acts, discriminatory legal rules, unequal judicial treatment and unjustified public burdens. Through ordinary litigation and individual application before the Constitutional Court, equality before the law continues to function as a central guarantee of justice in Türkiye.
FAQ: Equality Before the Law in the Turkish Constitution
What is the constitutional basis of equality before the law in Türkiye?
The main constitutional basis is Article 10 of the Constitution of the Republic of Türkiye.
What does Article 10 of the Turkish Constitution prohibit?
Article 10 prohibits discrimination based on language, race, colour, sex, political opinion, philosophical belief, religion, sect and similar grounds.
Does equality mean everyone must always be treated identically?
No. Equality means that persons in the same or comparable legal position must be treated equally unless different treatment has an objective and reasonable justification.
Does the Turkish Constitution protect gender equality?
Yes. Article 10 states that men and women have equal rights and that the State must ensure equality in practice.
Are positive measures allowed under the equality principle?
Yes. Measures taken to ensure real equality, especially between men and women and for vulnerable groups, are not considered contrary to equality.
Does equality bind administrative authorities?
Yes. State organs and administrative authorities are constitutionally obliged to act in compliance with equality before the law in all proceedings.
Can foreigners rely on equality before the law in Türkiye?
Yes, in principle. Article 10 uses the term “everyone,” but some rights of foreigners may be lawfully restricted under constitutional and international law rules.
Can companies invoke equality before the law?
Yes. Private legal persons may rely on equality where the nature of the legal situation allows it, especially in taxation, public procurement, licensing, regulatory sanctions and access to court.
Can equality claims be brought before the Constitutional Court?
Yes. Equality and discrimination claims may be raised through individual application if they are connected to a protected constitutional right within the scope of the European Convention on Human Rights and ordinary remedies have been exhausted.
Why is equality before the law important?
It prevents arbitrary and discriminatory treatment, strengthens legal certainty, supports the rule of law and ensures that public power is exercised fairly and objectively.
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