The Constitution is the highest legal authority in Papua New Guinea. Written law follows it in the legal hierarchy, together with Organic Laws, Acts and subordinate or adopted law. The Underlying Law Act 2000 also recognises custom and common law or equity where they are consistent with the Constitution, written law, national goals, human rights and Papua New Guinea circumstances. The meaning of custom can depend on the place, time and community. The Constitutional and Law Reform Commission monitors, records and reviews the development of the Underlying Law. Civil-law questions commonly concern legal capacity, identity, organisations, contracts, debt, guarantees, leases, services, sales, damages, injunctions, property, family relationships, inheritance and estate administration. Natural persons and statutory legal persons can have different rights and duties. The Companies Act, Business Names regime, Business Groups Incorporation Act, Associations Incorporation Act 2023 and Land Groups Incorporation Act 1974 provide different forms of legal organisation. The Land Groups Incorporation Act allows recognised customary groups to hold, manage and dispose of land as incorporated bodies. The Investment Promotion Authority maintains online entity information, and the Papua New Guinea Civil and Identity Registry records births, adoptions, marriages, divorces, deaths and national identity information. Registry access, filing requirements and fees depend on the service; examples include K50 for company-name reservation, K400 for online company incorporation and K100 for business-group incorporation. Associations affected by the 2023 Act have a transition or re-registration deadline of 30 June 2027. Contracts in Papua New Guinea are governed by common law and equity, legislation and, where the circumstances require, custom. A dispute may concern whether an agreement was formed, whether a person had authority to contract, whether performance was adequate, what evidence proves the agreement, or which remedy is available. Possible claims include debt, breach of contract, damages, injunctions and specific performance. Custom may affect the meaning of a transaction or what conduct is reasonable. The National Court Common Law Division handles contract, tort, negligence and related statutory claims, while District Court jurisdiction depends on the applicable monetary and procedural limits. Land requires separate care because customary land is not equivalent to individually registered freehold. Clan, lineage, family and group rights may determine control and use. The Land Act 1996 governs State land, leases and dealings, while the Land Registration Act 1981 provides for registered titles, certificates, leases, mortgages and charges. The Land Groups Incorporation Act can provide a corporate structure for customary landholding groups. Customary-land disputes may proceed through the process under the Land Disputes Settlement Act 1975, including Local Land Courts, Provincial Land Disputes Committees and mediation. The Land Commission Act 2022 provides an independent quasi-judicial pathway for tenure conversion, historical ownership and inquiries; it is not the ordinary forum for every day-to-day land dispute. Movable property used as collateral may be recorded or searched through the Personal Property Securities Registry. Family law recognises both formal and customary marriage under the Marriage Act 1963. The Papua New Guinea Civil and Identity Registry records marriages and divorces. The Matrimonial Causes Act 1963 and Matrimonial Causes Rules 2022 cover dissolution, nullity, judicial separation, maintenance, settlements, custody, guardianship and child welfare in National Court matrimonial proceedings. A District Court may confirm dissolution of a customary marriage when the required customary dissolution is established. The Adoption of Children Act 1968 provides statutory adoption, while customary adoption can have legal effect under custom with a Local Court certificate or variation process. Custom, registration and the facts concerning property, maintenance and children can change the applicable rights and duties. The Wills, Probate and Administration Act 1966 provides the main framework for wills, probate, letters of administration, caveats and estate administration. The National Court and its registry handle probate proceedings, while the Public Trustee can provide intestate estate administration, trustee and will or estate services. Customary succession may apply where the law preserves or recognises it. Customary land and group interests do not automatically become individual estate assets, so inheritance questions involving such interests require separate customary-land analysis. Liability claims generally rely on common law, equity and legislation rather than a comprehensive tort code. They may involve negligence, nuisance, trespass, breach-related damages, restitution or an injunction. A claimant normally needs evidence concerning the duty or wrongful conduct, causation, loss, applicable defences and any limitation or statutory requirements. Custom can affect questions of reasonableness, conduct, omissions and state of mind where the law permits. Constitutional rights claims and damages may be brought in the Supreme Court or National Court when the legal requirements are met. Papua New Guinea's National Judicial System includes the Supreme Court, National Court, District Courts, Local Courts and Village Courts, as well as specialist forums. Village Courts are statutory courts that use customary mediation and conflict resolution, non-technical evidence and substantial justice. DJAG reports 14,496 Village Courts with coverage of about 90 percent of the country; local availability, language, circuit arrangements and representation still vary. Land mediation follows the Land Disputes Settlement Act. District Court civil limits in the reviewed statutory text are K10,000 for a Principal Magistrate and K8,000 for a Magistrate, subject to checking current amendments and venue rules. National Court proceedings may use a writ of summons, originating summons or miscellaneous proceedings. The National Court Rules 1983, ADR Rules 2022 and Matrimonial Causes Rules 2022 govern different procedures. Filing normally requires registry vetting, a file number and payment of the applicable fee. A judgment does not guarantee recovery. The Sheriff, Registrar and appointed officers enforce orders of the Village, District, National and Supreme Courts through measures such as a writ of levy, possession or delivery, sequestration, a District Court warrant of execution or commitment, and garnishee attachment of debts, including wages where court limits allow. Recovery depends on identifiable assets, valid service, the debtor's location, registry capacity and the creditor's instructions. Civil-law costs include filing, service, lawyers, mediation, enforcement, travel, surveys, registry charges and administration. No consolidated national table or fixed civil-case deadline applies to every matter. Case duration depends on the claim, court, province, evidence, backlog, procedural track and any alternative dispute resolution. DJAG provides a legal-aid application pathway, and informal or customary forums may have lower formality while still raising questions about local availability, power balance and enforceability.
Civil law in Papua New Guinea
Civil law in Papua New Guinea governs private legal relationships involving people, organisations, contracts, property, family matters, inheritance and liability. Papua New Guinea has no standalone Civil Code: the Constitution, Acts, subordinate law, common law, equity and custom work together within the Underlying Law framework. Formal courts and registries operate alongside customary processes such as Village Courts and land mediation.
Tip
Treat a civil-law problem in Papua New Guinea as a choice of forum, evidence and enforceability, not simply as a question of finding a rule. Identify whether written law, custom, registration records or court remedies control the matter, then choose a pathway that fits the dispute and your ability to prove and enforce the result. Obtain local legal advice when customary land, family status, succession, substantial damages or conflicting authority is involved.

