Short answer
EU law uses two different systems. Council Regulation (EC) No 4/2009 governs maintenance obligations throughout the EU, with a special parallel arrangement for Denmark. A maintenance decision from a state bound by the 2007 Hague Protocol is recognised and enforceable in another Member State without a separate declaration of enforceability. The creditor supplies the decision, the prescribed extract and any necessary arrears and language material; actual execution then follows the enforcement state's law.
Council Regulation (EU) 2016/1103 governs matrimonial property only among 18 Member States participating in enhanced cooperation. A decision is recognised there without a special procedure, but coercive enforcement requires a declaration of enforceability in the destination state. Recognition can be refused only on limited grounds, and the merits cannot be retried.
An “arrangement” needs classification. A court settlement or enforceable authentic instrument, such as a qualifying notarial instrument, has a circulation route under the regulations. An ordinary private marital agreement does not automatically become enforceable abroad. It may first need to be recognised under the applicable national law, embodied in an authentic instrument or settlement, or confirmed by a decision.
First decide whether the obligation is maintenance or property division
The label used in the originating proceedings is not conclusive. A divorce order can contain support, transfer property and divide the matrimonial estate. Each part may follow a different cross-border regime.
In Van den Boogaard v Laumen, C-220/95, the Court of Justice considered an earlier jurisdiction convention and focused on the award's purpose. It held:
“if its purpose is to ensure the former spouse's maintenance”. —
A lump sum or property transfer can therefore function as maintenance when designed to provide support; a provision concerned only with dividing property belongs to the matrimonial-property side. The judgment predates the current regulations, but its functional distinction remains a useful warning: a mixed order should identify the aim and amount of each component so that partial circulation is possible.
Maintenance decisions usually circulate without exequatur
For a decision issued in a Member State bound by the 2007 Hague Protocol, Article 17 of the Maintenance Regulation abolishes the intermediate enforceability procedure, traditionally called exequatur:
The decision is enforceable in another Member State “without the need for a declaration of enforceability”. —
Recognition is also automatic, without a special procedure or an ordinary opportunity to oppose recognition. This does not mean the creditor can arrive without documents. Article 20 normally requires:
- an authentic copy of the decision;
- an extract issued by the court of origin using Annex I;
- where appropriate, a statement of arrears and calculation date; and
- any required translation or transliteration of the form.
The destination authority ordinarily cannot demand a full translation of the decision unless enforcement is challenged. Protective measures available under destination law can follow automatically from an enforceable decision.
A defaulting defendant retains a safeguard in the state of origin. Article 19 permits review where service was not timely and effective, or extraordinary circumstances prevented a defence without fault, subject to prompt action and the 45-day limit. At enforcement stage, Article 21 permits limited refusal or suspension, including where the right to enforce has expired under the longer relevant limitation period, the decision conflicts with another qualifying decision, origin-state review is pending, or enforceability has been suspended at origin.
Enforcement remains national
Abolishing exequatur does not create one EU execution procedure. Article 41 sends attachment, deductions, seizure, payment accounting and most objections to the law of the Member State of enforcement. The foreign decision must be enforced under the same conditions as a domestic decision, subject to the Regulation. Its substance cannot be reviewed.
In FX (Opposing enforcement of a maintenance claim), C-41/19, a debtor said the debt had already been largely paid. The Court held that the enforcement-state court had jurisdiction over that closely linked objection and could assess the evidence under its national law:
“it is for the referring court ... to adjudicate on the admissibility and the validity of the evidence”. —
That permits examination of post-decision payment, not reconsideration of whether maintenance should originally have been ordered or its amount. Events that could have been raised in the originating case cannot be repackaged as an enforcement appeal.
Settlements, authentic instruments and central-authority help
An enforceable maintenance court settlement or authentic instrument is recognised and enforced like a decision under Article 48. The authority of origin issues the appropriate Annex extract. This gives qualifying notarial or administrative instruments a route, but only where the instrument is enforceable in its state of origin.
Creditors and debtors can also use designated central authorities. They transmit applications and can help locate a debtor or creditor, obtain information, facilitate proceedings, support collection and transfer of payments, and assist with legal aid. Child-maintenance applications concerning a parent-child relationship for a person under 21 generally receive free legal aid through the central-authority route, subject to the Regulation's conditions.
The system applies in all 27 Member States through the EU–Denmark parallel agreement, but Denmark does not apply the applicable-law or central-authority cooperation chapters. The precise Denmark route and documents must therefore be checked separately. The list of qualifying administrative authorities in Annex X was replaced with effect from 16 July 2026 by Commission Implementing Regulation (EU) 2026/1397; that update changes the authority list, not the core circulation rules.
Matrimonial property operates only among 18 states
Regulation 2016/1103 applies among Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Finland, France, Germany, Greece, Italy, Luxembourg, Malta, the Netherlands, Portugal, Slovenia, Spain and Sweden. A case involving another Member State does not acquire an EU-wide property-enforcement route merely because the parties are EU citizens. National conflict and recognition rules, and any relevant convention, must then be examined.
The Regulation covers property relationships between spouses and with third parties resulting from marriage or its dissolution. It does not govern maintenance, succession, the existence or validity of marriage, legal capacity, social security, or the nature and registration of rights in property. Land-register requirements and effects of registration remain national.
Temporal scope matters. It generally applies to proceedings begun, authentic instruments drawn up or registered, and court settlements approved or concluded on or after 29 January 2019. Its applicable-law chapter generally applies only to spouses who married or selected the applicable law after that date.
Recognition is automatic, but enforcement needs a declaration
Article 36 provides:
“A decision given in a Member State shall be recognised in the other Member States without any special procedure being required.” —
Recognition lets a party rely on the decision, including incidentally in another case. Enforcement is a separate step. An interested party applies to the destination court or authority for a declaration of enforceability, normally providing an authentic copy and the origin authority's prescribed attestation. The declaration is issued after the formalities are completed and initially without hearing the opposing party.
The opposing party can appeal. Refusal is confined to manifest public policy, defective service in default proceedings, and irreconcilability with specified decisions. The destination authority cannot review origin-state jurisdiction through public policy or reconsider the substance. Once declared enforceable, execution follows destination law.
What happens to marital agreements and notarial instruments?
The Regulation distinguishes private agreements from “authentic instruments”. An authentic instrument must be formally drawn up or registered as such in a Member State, with its signature and content authenticated by a public authority or other empowered authority.
Such an instrument receives the same evidentiary effect in another participating state as at origin, or the closest comparable effect, unless manifestly contrary to public policy. If it is enforceable at origin, it can be declared enforceable abroad using the Article 44–57 process and an attestation. Refusal at appeal is limited to manifest public policy. An enforceable court settlement follows a similar route.
Authenticity challenges belong in the state of origin. A challenge to the legal acts or relationships recorded in the instrument goes to a court with jurisdiction under the Regulation and is decided under the law selected by its applicable-law chapter. While the relevant challenge is pending, cross-border evidentiary effect is restricted.
A privately signed prenuptial or postnuptial agreement does not qualify merely because the parties call it binding. Its formal and substantive validity, applicable law, third-party effect and route to an enforceable title must be established. Recognition also does not automatically amend a land register or bypass destination-state registration formalities.
Practical file checklist
Before seeking enforcement, identify each obligation as support or property, confirm the origin and destination states participate in the relevant regime, check dates and origin enforceability, obtain the correct copy and EU attestation or extract, calculate arrears, verify accepted languages, and identify the destination enforcement authority. Record service on the defendant, pending appeals, payments, limitation periods, competing decisions and any challenge to an authentic instrument.
Conclusion
Maintenance and matrimonial property do not travel through one procedure. Most maintenance decisions receive the fastest route—automatic recognition and enforcement without exequatur—while execution and payment objections remain national. Matrimonial-property decisions are automatically recognised only within the 18-state enhanced-cooperation area and require a declaration before enforcement. Settlements and authentic instruments can circulate, but an ordinary private marital agreement needs a valid route to evidentiary or enforceable status first.
Sources
This article provides general legal information, not advice for a specific matter. Laws, facts and procedural deadlines may change the result. Follow the linked primary sources and obtain local advice before acting.