Family Law by Country: Divorce, Custody & Support

Family law looks different in almost every country, but the questions it answers are the same everywhere: how does a marriage legally end, who keeps what, who supports whom afterward, who cares for the children, and who pays for their upbringing. Every legal system builds its own answers around local history, religion, and legal tradition, which is why a divorce that takes a few months in one country can take years in another, why a departing spouse might walk away with half the marital estate in one system and almost none of it in another, and why "custody" itself means something different depending on where a family lives.

This guide is a starting point for comparing those traditions before you dig into a specific country's rules. For a detailed look at how divorce works under U.S. law, see our guide to divorce law. The country guides linked below go deeper on each jurisdiction's actual rules, courts, and procedures.

Fault, No-Fault, and the Separation Spectrum

Older family law systems required a spouse to prove fault, such as adultery, cruelty, or desertion, before a court would grant a divorce. Over the past several decades, most legal systems have shifted toward no-fault divorce, where a marriage can end because it has broken down irretrievably, without either spouse having to prove wrongdoing. A number of countries frame this explicitly as "irretrievable breakdown," evidenced either by mutual consent or by a period of separation, rather than as a no-fault checkbox layered onto an otherwise fault-based system.

That shift did not eliminate waiting periods. Many countries still require spouses to live separately for a set stretch of time before a court will finalize a divorce, particularly when only one spouse wants out or when there are disputes over property or children. The length of that separation requirement is one of the widest points of variation in family law: some systems ask for a token waiting period measured in months, others ask for several years of separation absent mutual consent, and some waive the requirement entirely when both spouses agree. A smaller group of countries still retains fault-based grounds as an active option alongside no-fault divorce, sometimes because it can shorten the waiting period, and sometimes because fault still affects financial or custody outcomes. A few legal systems, generally those with religious family courts, restrict divorce grounds much more narrowly, or apply different rules depending on the couple's religion. Because this spectrum runs from strict fault requirements at one end to fast administrative no-fault divorce at the other, with irretrievable-breakdown-plus-separation systems occupying the middle, the details for any specific country are always worth confirming rather than assuming.

Matrimonial Property Regimes: Community, Separation, and Deferred Community

Countries generally divide marital property under one of a few broad models, and the model matters more than any single country's specific split. Under community of property, most assets acquired during the marriage are treated as jointly owned from the moment of acquisition, and are typically split evenly on divorce or death regardless of whose name is on the title or who earned the money. Under separate property regimes, spouses generally keep what is titled in their own name during the marriage, with a court intervening at divorce mainly to prevent an unfair result, often described as equitable distribution rather than an automatic even split.

A third family of regimes, deferred community (also called participation in acquisitions or accrual systems), sits between the two: each spouse's property stays legally separate during the marriage, as in a separate property system, but at the end of the marriage the increase in each spouse's net worth over the course of the marriage is calculated and equalized between them. This lets each spouse manage their own assets day to day while still sharing in the economic partnership the marriage represented. Some countries default to this model, and some offer it as an elective regime alongside community of property and full separation. Many legal systems also allow spouses to opt into a different regime than the default through a marriage contract, so the statutory default is a starting point rather than the only possible outcome, and inherited or pre-marital property is commonly excluded from the shared pool even under a community regime.

Spousal Maintenance: From Clean-Break to Long-Term Support

Separate from child support, many legal systems allow one spouse to claim ongoing financial support from the other after divorce, commonly called spousal maintenance, alimony, or spousal support. How readily that support is awarded, and for how long, varies enormously. Some legal systems favor a "clean break" philosophy: courts try to divide property in a way that lets each spouse become financially independent quickly, and long-term maintenance is the exception rather than the rule, often limited to a defined rehabilitative period tied to retraining or re-entering the workforce. Other systems are far more willing to order indefinite or long-duration maintenance, particularly after a long marriage, a large gap in the spouses' earning capacity, or where one spouse left paid work to raise children or run the household.

Across both approaches, courts tend to weigh similar factors: the length of the marriage, each spouse's age, health, and earning capacity, the standard of living during the marriage, and any career sacrifices made for the family. What differs is how heavily those factors are weighted against the clean-break principle, and whether maintenance is treated as compensation for lost opportunity or purely as a bridge to independence. Some countries also link maintenance eligibility to fault or conduct in ways their divorce-grounds rules otherwise abandoned, so it is worth checking whether a no-fault divorce jurisdiction still allows conduct to affect the maintenance award even when it cannot affect the divorce itself.

Child Custody and the Best-Interests Standard

Almost every country now frames custody and parenting-time decisions around some version of the best interests of the child. This standard is echoed in the UN Convention on the Rights of the Child, which most countries have ratified. In practice, however, "best interests" is applied through very different mechanics: some systems default to joint or shared parental responsibility, treating both parents as retaining decision-making authority after separation unless there is a specific reason to limit it, while others favor designating a primary residential parent with defined parenting time or access for the other. The terminology itself varies just as widely, custody, parental responsibility, guardianship, and access all describe overlapping but not identical concepts depending on the legal system.

Courts across jurisdictions tend to weigh similar factors: each parent's relationship with the child, stability, safety, any history of family violence, and, as children get older, their own expressed wishes. But how much weight each factor gets, and at what age a child's preference starts to matter, differs from country to country, as does how directly a child's wishes are solicited, whether through a judge speaking with the child directly, an independent child's lawyer or guardian, or a social welfare assessment submitted to the court.

Child Support: Formula-Driven vs Judicial-Discretion Models

Once custody or parenting arrangements are settled, the next question is who pays for the child's upbringing and how much. Some countries calculate child support using a fixed formula or published guideline table tied to parental income, the number of children, and sometimes each parent's share of parenting time, which produces a predictable, largely automatic number and reduces what parents have to litigate. Others rely more heavily on judicial discretion, where a court weighs each family's specific income, expenses, and circumstances to set an amount case by case, which allows more flexibility but less predictability.

Neither approach is inherently better: formulas offer predictability and consistency and make it harder for a paying parent to argue their way to a lower figure, while discretion allows a court to respond to unusual situations a formula would not anticipate, such as a child's disability or a parent's irregular income. Many countries use a hybrid, starting from a guideline calculation and then adjusting for special circumstances such as medical needs, education costs, or shared custody arrangements. Enforcement mechanisms also vary widely, from wage withholding and passport restrictions to reliance on the paying parent's voluntary compliance, which is part of why the cross-border maintenance treaties discussed below matter so much once a paying parent moves to another country.

Prenuptial and Marital Agreements

Couples in many countries can sign an agreement before or during a marriage that sets out how property will be divided or whether maintenance will be paid if the marriage ends, but legal systems differ sharply in how binding that agreement actually is. In some jurisdictions, a properly executed marital agreement is treated much like an ordinary contract: courts will enforce its terms unless there is fraud, coercion, or a serious procedural defect, and spouses are largely free to opt out of the default property or maintenance rules. In others, courts retain broad discretion to override or adjust a prenuptial agreement at the point of divorce if enforcing it would produce a result the court considers unfair, particularly where children are involved or where one spouse's circumstances changed substantially after signing.

A smaller group of legal systems gives limited or no effect to prenuptial agreements at all, on the view that the state's default rules for dividing marital property are not something spouses should be able to contract around in advance. Even where an agreement is recognized, procedural requirements commonly matter as much as the substance: independent legal advice for each spouse, full financial disclosure before signing, and a minimum waiting period before the wedding are frequent (though not universal) conditions for a marital agreement to hold up later. A prenuptial agreement drafted for one country's courts also does not automatically travel well to another; a couple who move to a different country after signing should not assume their agreement will be read the same way there.

Cohabitation, Registered Partnerships, and Civil Unions

Marriage is not the only legal relationship family law recognizes. Many countries offer a registered partnership or civil union status, which can extend some or most of the rights and obligations of marriage, including property and support claims, without the couple actually marrying. Others give unmarried cohabiting couples certain default protections after living together for a period of time, sometimes called common-law or de facto partner status, while some jurisdictions give cohabitants very few automatic rights at all, leaving separating unmarried couples to rely on general contract or property law rather than family law.

Because this area varies so much, couples who are not married, or who are in a registered partnership rather than a marriage, should not assume their rights on separation mirror those of a divorcing married couple in the same country, let alone in a different one. Some countries that created registered partnerships as a lesser status before recognizing marriage for the same couples have since converted or phased them out, while others maintain both statuses side by side as genuinely separate options with different consequences.

Same-Sex Marriage and Partnership Recognition

Legal recognition of same-sex relationships varies more sharply across countries than almost any other family law topic. A growing number of countries recognize same-sex marriage on the same legal footing as opposite-sex marriage, with identical rules on divorce, property, and custody. A separate group recognizes same-sex couples only through a registered partnership or civil union rather than marriage itself, which can carry materially different rights depending on the country, particularly around parentage and adoption. In still other countries, same-sex relationships receive no formal legal recognition, and in some, same-sex conduct itself remains criminalized.

This has direct practical consequences for families that move between countries: a same-sex marriage validly performed in one country is not automatically recognized in another, and a couple relocating, or even traveling, should research the destination country's stance before assuming their marriage, partnership, parental rights, or personal safety will be treated the same way abroad as at home.

Domestic Violence Protection Orders

Most legal systems provide some mechanism for a person to obtain a protection order, restraining order, or injunction against an abusive spouse or partner, typically allowing a court to order the abuser out of the shared home, prohibit contact, and address immediate custody or support needs on an emergency basis while a fuller case proceeds. How that mechanism works varies considerably: some countries allow police or specialized domestic violence courts to issue an emergency order within hours, while in others a protection order can only come from a family court on a schedule closer to ordinary civil litigation. Whether a protection order can be obtained together with, or independently of, a divorce or custody case also differs, as does how consistently these orders are enforced once granted, which is a recognized gap in some jurisdictions even where the law on paper is strong.

Because a protective order intersects with custody, property, and sometimes immigration status, and because international enforcement of a foreign protection order is far less developed than the treaty framework for custody or maintenance, anyone dealing with family violence across a border should treat this as an area to get local legal advice on quickly rather than assuming a protection obtained in one country travels automatically to another.

Cross-Border Families: The Hague Conventions and Jurisdiction

When a family's members, assets, or history span more than one country, domestic family law alone often cannot resolve the dispute. A cluster of international treaties, most notably the Hague Conventions, exists to fill that gap. One treaty establishes a fast-track process for returning a child who has been wrongfully removed or retained across an international border by a parent, so that custody is decided in the child's country of habitual residence rather than wherever the child was taken. A related treaty addresses which country's courts and authorities have jurisdiction over a child's welfare and protection when the family has connections to more than one country, reducing the risk of competing custody orders from different legal systems. Another sets up cooperation between countries to recognize and enforce child and family maintenance obligations across borders, so a support order made in one country can actually be collected when the paying parent lives in another. A separate, older Hague convention addresses which country's law governs a couple's matrimonial property regime when they have connections to more than one legal system, relevant to the same property-division question this guide covers above.

Not every country is a party to every one of these treaties, and even among parties, procedures and how quickly courts act can differ. Where no applicable treaty exists between two countries, a cross-border family dispute typically has to be resolved through each country's own domestic law and courts individually, which is slower and less predictable, and is one of the strongest reasons to get local counsel involved early in any cross-border custody, support, or property dispute.

Specialized Family Courts

Many countries have also created specialized family courts, or dedicated family divisions within their general court system, staffed by judges and procedures focused specifically on divorce, custody, and support disputes rather than general civil litigation. Some go further and integrate social workers, mediators, or child welfare specialists directly into the court process, or route certain disputes through mandatory mediation before a judge will hear the case at all. This specialization is intended to make family cases faster, more consistent, and less adversarial than ordinary lawsuits, though how well that works in practice, and how backlogged those specialized courts are, varies by jurisdiction.

Family law by country

Explore the full guide for each country we cover. Every country page cites its own primary legislation and is kept up to date.

Europe

• UK Family Law: Divorce, Child Maintenance & Rights
• Family Law in Ireland: Divorce, Separation, Cohabitants and Names
• Family Law in France: PACS, Divorce, Custody, Child Support
• Familienrecht: The Complete Guide to German Family Law
• Italian Family Law: An Overview
• Belgian Family Law: Divorce, Child Support and the Family Court (2026)
• Family Law in Spain: Divorce, Custody, Support and Protection Orders (2026)
• Family Law in the Netherlands (Familierecht): Divorce and Alimentatie
• Family Law in Austria: Familienrecht Overview (Divorce, Child and Spousal Maintenance)
• Swiss Family Law: Familienrecht for Expats and Cross Border Families

Americas

• Canadian Family Law by Province: A Practical Guide

Asia-Pacific & Africa

• Australian Family Law: Divorce, Parenting and Property Guide
• New Zealand Family Law: Separation, Children, and Property
• Family Law in Singapore
• South Africa Family Law: Maintenance, Divorce, Children and Protection Orders (2026)

For the United States, see our guides to divorce and child custody.

This page provides general legal information about how this area of law differs between countries. Laws change frequently and can vary by region within a single country. It is not legal advice. For a specific situation, consult a qualified lawyer in the relevant jurisdiction.