The legal system of Holy See (Vatican City)
A unique jurisdiction in which the Pope holds supreme legislative, executive and judicial power. Canon law is the primary law, supplemented by Vatican statutes and, where compatible, Italian law applied subsidiarily. It uses the euro under agreement with the EU.
Legal tradition
Holy See (Vatican City) belongs to the canon law and civil law tradition. A unique jurisdiction in which the Pope holds supreme legislative, executive and judicial power. Canon law is the primary law, supplemented by Vatican statutes and, where compatible, Italian law applied subsidiarily. It uses the euro under agreement with the EU.
How power is divided
Power is concentrated in the Supreme Pontiff, exercised through the Pontifical Commission for Vatican City State (legislative), the Governorate (executive) and the Vatican tribunals (judicial).
Where law comes from
- Canon law
- The 1983 Code of Canon Law, the primary source.
- Fundamental Law
- The 2023 constitutional charter of the State.
- Vatican statutes
- Laws issued for Vatican City State.
- Italian law (subsidiary)
- Applied where compatible and not otherwise provided.
The legal profession
Advocates are enrolled with the Vatican tribunals; canon lawyers (canonists) practise before ecclesiastical courts.
Law by topic in Holy See (Vatican City)
- Business & CorporateNo commercial company sector, but supervised financial activityVatican City State has no ordinary company registry or private commercial market. Patrimony is administered by APSA, financial activity runs through the IOR, and both are supervised by the financial authority ASIF.
- Property & LandInalienable patrimony and extraterritorial properties in ItalyThere is no private real-estate market inside the State; property belongs to the Holy See or the State and is administered by APSA. The Lateran Treaty also grants extraterritorial status and tax immunity to designated properties in Italy.
- Immigration & NationalityCitizenship by office, not by birth or residenceVatican citizenship is functional and temporary: it attaches to cardinals resident in Rome, diplomats of the Holy See and those living in the State for their office, and it lapses when the office ends. There is no immigration route for settlement.
- Family LawCanonical marriage, nullity instead of divorceMarriage is governed by the 1983 Code of Canon Law, which treats a consummated sacramental marriage as indissoluble. There is no divorce; a marriage can only be declared null, or dissolved in narrow canonical situations.
- Criminal LawA received nineteenth-century code, modernised by motu proprioVatican criminal law grew out of the Italian code received in 1929 and has been reformed by papal legislation, notably in 2013 for offences against minors and international crimes. The Vatican Tribunal tries cases, with appeal and cassation inside the State.
- Employment & LabourVatican labour law with ULSA and its own conciliation routeEmployment of lay staff is governed by Vatican labour legislation and the regulations of the Roman Curia, applied by the Labour Office of the Apostolic See. Disputes go first to conciliation and arbitration rather than the ordinary courts.
- Tax LawNo income tax, no VAT, and treaty-based exemptions in ItalyVatican City State levies no income tax or VAT. It is financed by donations, museum revenue and investment income, while the Lateran Treaty exempts designated Holy See property in Italy from Italian taxation.
- Civil ProcedureCanon law first, received Italian procedure as the residual baseCanon law is the first source of Vatican law, and Italian law applies only subsidiarily and by express reception under the 2008 sources statute. Civil proceedings run before the Vatican Tribunal using the received procedural code as adapted.
- Constitutional LawThe 2023 Fundamental Law and absolute papal sovereigntyVatican City State is governed by a Fundamental Law promulgated in 2023, replacing the 2000 text. The Pope holds the fullness of legislative, executive and judicial power, delegating administration to the Pontifical Commission and Governorate.
- Human RightsSelective treaty participation with canon law as the moral frameThe Holy See is party to a small number of human-rights treaties, including the Convention on the Rights of the Child and the Convention against Torture, but not the ECHR or the ICCPR. Rights protection rests on canon law and domestic Vatican legislation.
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