Prenup EU 2026: When You Need One, FR DE IT ES NL PL

TL;DR

A prenuptial agreement (prenup) is a notarial contract signed before marriage that modifies the default marital property regime. Most EU couples do not need one. It becomes genuinely useful in roughly five scenarios.

• Pre-marriage net worth above 200,000 EUR in liquid assets or property.
• Business owner with equity in a privately held firm.
• Second marriage with children from a prior relationship.
• Age gap of more than 10 years with significantly different retirement assets.
• Family wealth or expected inheritance where the family expects a marital agreement.

Four numbers worth memorising:

• Roughly 38 to 42 percent of EU marriages end in divorce.
• Typical prenup notarial costs: 500 to 1,500 PLN in Poland; 500 to 2,500 EUR in Germany; 350 to 1,200 EUR in France; 1,000 to 2,500 EUR in the Netherlands; 600 to 1,800 EUR in Spain; 800 to 2,500 EUR in Italy.
• In Germany, around 25 percent of marriages now include an Ehevertrag; in France, around 20 percent of weddings include a contrat de mariage other than the default.
• A postnup (after marriage) is possible in every EU jurisdiction discussed below but more easily contested than a prenup.

This deep dive walks through each jurisdiction, when a prenup is worth it, the cost structure, what it should and should not contain, and the most common mistakes.

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Germany — Ehevertrag

Default regime. Zugewinngemeinschaft (community of accrued gains). Pre-marital assets stay personal. Gains accrued during the marriage are equalised on divorce.

When a prenup adds value.

• Business owner — without an Ehevertrag, the business's gain during the marriage may be partially equalised on divorce, potentially forcing a sale or refinancing.
• Significant pre-marital assets with expected appreciation.
• Second marriage with children — protecting their inheritance share.
• One spouse expects a substantial inheritance.
• Large pension entitlement gap — pension splitting (Versorgungsausgleich) can otherwise be very expensive for the higher-pension spouse.

Form. Must be notarial (notarielle Beurkundung). Both spouses must be physically present. The notary records the agreement and stores the original.

Cost. Notary fees scale with the asset value declared. Typical range 500 to 2,500 EUR. High-net-worth prenups can exceed 5,000 EUR.

Typical contents.

• Modification of Zugewinngemeinschaft (often to Gütertrennung — full separation of property).
• Exclusion of Versorgungsausgleich (pension splitting) — possible but requires careful drafting; courts can strike unfair exclusions.
• Maintenance (Unterhalt) rules in case of separation.
• Inheritance ordering (Erbverzichtsverträge — waiver of inheritance rights).

Postnup. Permitted. Same notarial form. More easily contested if signed under emotional pressure or during marital crisis.

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France — Contrat de Mariage

Default regime. Communauté réduite aux acquêts. Property acquired during the marriage is jointly owned; pre-marital and inherited property remains personal.

When a prenup adds value.

• Business owner — séparation de biens shields business equity.
• Significant pre-marital wealth or property.
• One spouse has children from a prior relationship.
• Cross-border couples — choosing applicable law under EU regulation.

Form. Must be notarial (acte authentique). Signed before the wedding. Mentioned on the marriage certificate.

Cost. Notary fees range from 350 to 1,200 EUR for standard contracts. Custom contracts with complex provisions cost more.

Regime options.

• Séparation de biens. Each spouse keeps full ownership of their assets. Common for business owners and second marriages.
• Participation aux acquêts. Hybrid — runs like separation during the marriage, but gains are equalised on dissolution. Similar in spirit to German Zugewinngemeinschaft.
• Communauté universelle. Universal community — all assets joint. Less common; mainly used by older couples for estate-planning purposes.

Postnup. A "changement de régime matrimonial" is possible after 2 years of marriage, also via notarial act.

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Italy — Separazione dei Beni

Default regime. Comunione dei beni — community of property. Joint ownership of assets acquired during the marriage.

When a prenup adds value.

• Business owner — separazione dei beni keeps business equity wholly personal.
• Pre-marital assets you want to protect.
• Significant inheritance expectations.

Form. Declaration of separazione dei beni can be made at the wedding registration (registro dello stato civile) — no notary required for the basic switch. More detailed prenups must be notarial (atto pubblico).

Cost. Basic switch is essentially free. Notarial prenups with custom provisions cost 800 to 2,500 EUR.

Postnup. Possible. Notarial form required.

Note. Italian prenups are generally less flexible than their German or French counterparts. Provisions affecting alimony or other post-divorce obligations are often struck down as contrary to public policy.

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Spain — Capitulaciones Matrimoniales

Default regime. Varies by region. Most of Spain — sociedad de gananciales (community of acquisitions). Catalonia, Balearic Islands, and Aragon — separation of property by default.

When a prenup adds value.

• Business owner.
• Cross-region couples — particularly when one spouse is from a separation-default region and the other from a community-default region.
• Significant pre-marital wealth.
• Second marriages.

Form. Notarial (escritura pública). Registered in the Civil Registry.

Cost. Typical notarial fees 600 to 1,800 EUR.

Regime options.

• Sociedad de gananciales. Default in most of Spain.
• Separación de bienes. Full property separation.
• Régimen de participación. Hybrid — runs like separation but with equalisation on dissolution.

Postnup. Permitted. Same notarial form.

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Netherlands — Huwelijkse Voorwaarden

Default regime. Beperkte gemeenschap van goederen — limited community of property. Reformed in 2018. Only assets acquired during the marriage become joint. Pre-marital assets and inheritances stay personal — a significant shift from the pre-2018 universal community.

When a prenup adds value.

• Business owner.
• Pre-marital assets with expected significant appreciation.
• Couples wanting to fully exclude even shared post-marriage acquisitions.
• Couples wanting to include explicit pension provisions beyond default pensioenverevening.

Form. Notarial (notariële akte). Registered in the huwelijksgoederenregister at the local court.

Cost. Notarial fees 1,000 to 2,500 EUR for standard contracts.

Postnup. Permitted (signed during marriage, "tijdens het huwelijk"). Same notarial form. Subject to careful court review if contested.

Note. Because the 2018 reform already limits the joint pot significantly, fewer Dutch couples sign a prenup than in pre-2018 years. For most wage-earner couples, the default is now closer to what a prenup would have specified before 2018.

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Poland — Intercyza Notarialna

Default regime. Ustawowa wspólność majątkowa — statutory marital community. Income earned during the marriage is jointly owned. Pre-marital property, inheritances, and gifts remain personal.

When a prenup adds value.

• Business owner — particularly if the business pre-existed the marriage or is expected to grow significantly.
• Second marriage with children — protecting their inheritance share.
• One spouse expects a significant inheritance or carries family-wealth expectations.
• Cross-border couples — choosing applicable law under EU regulation.

Form. Notarial (akt notarialny). Both spouses must appear before the notary. Original held by the notary.

Cost. Typical notarial fees 500 to 1,500 PLN for standard contracts.

Regime options.

• Wyłączenie wspólności (rozdzielność majątkowa). Full separation of property. Each spouse keeps their own income and assets.
• Rozszerzenie wspólności. Extension of community — pre-marital assets become joint. Rare. Used for estate-planning purposes.
• Rozdzielność majątkowa z wyrównaniem dorobków. Separation with equalisation on dissolution. Hybrid model. Less common.

Postnup. Permitted at any time during the marriage. Same notarial form. Less easily contested in PL than in some other jurisdictions, provided no obvious duress.

Polish-specific note. Because the default regime already protects pre-marital property and inheritances, only around 5 to 7 percent of Polish marriages include an intercyza. For most wage-earner couples without significant pre-marital assets, the default works well. Intercyza becomes valuable mainly when one spouse runs a business or expects substantial inheritance.

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What a Prenup Should Cover

A well-drafted prenup typically covers:

• Choice of regime. Separation, community, hybrid.
• Treatment of pre-marital assets. Explicit list with current valuations.
• Treatment of inheritances and gifts received during the marriage.
• Business equity. Critical for owner-managed businesses.
• Real estate. Particularly properties owned before marriage or expected as inheritance.
• Pension entitlements. Inclusion or exclusion of automatic equalisation.
• Debt brought into the marriage. To prevent it being treated as joint.
• Choice of applicable law. For cross-border couples under EU regulation.

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What a Prenup Should Not Try to Cover

In most EU jurisdictions, certain provisions are unenforceable as contrary to public policy:

• Custody of children. Courts decide based on the child's best interest at the time of separation, regardless of any prenup clause.
• Child support. Statutory minimums apply. Cannot be waived in advance.
• Spousal maintenance below statutory floor. In Germany and France, courts can override prenup maintenance clauses if they cause undue hardship.
• Behavioural clauses. "If you cheat, you lose X" — generally unenforceable. Treated by courts as contrary to public morality or as a penalty clause.
• Anything signed under duress. Including the night before the wedding. Courts will look closely at the timing.

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Costs and Process

A typical prenup process across the EU follows roughly the same arc:

1. Initial consultation with each spouse's own lawyer. Critical: do not share a lawyer. 200 to 500 EUR per consultation.
2. Drafting. 2 to 4 weeks. Each side proposes changes.
3. Notarial appointment. Both spouses physically present. The notary reads the contract aloud, confirms understanding, signs and seals.
4. Registration. Where required (NL huwelijksgoederenregister, ES Civil Registry).

Total time: 4 to 8 weeks. Total cost (including lawyers and notary): 1,500 to 5,000 EUR for standard contracts; significantly more for complex cases with international elements or business equity valuations.

Sign at least 4 weeks before the wedding. Last-minute signing is a common ground for contesting validity.

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Postnup vs Prenup

A postnup (signed during the marriage) is permitted in every EU jurisdiction discussed above. Differences from a prenup:

• More easily contested. Particularly if signed during marital crisis or imminent separation.
• Same notarial form required.
• Same content limitations.
• Useful triggers. Receiving a significant inheritance, starting or growing a business, having children, moving to a different jurisdiction.

The legal advice across all jurisdictions: if you would benefit from a prenup but did not sign one, a postnup signed during a calm period of the marriage is usually enforceable.

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Worked Example: Couple A (Business Owner Pre-Marriage)

Klaus, 38, owns a software consultancy with 8 employees in Berlin. Valued at around 2.4 million EUR. About to marry Marlene, 35, salaried product manager.

Without an Ehevertrag, the business's gain during the marriage would be partially equalised on a future divorce. A doubling in value over 10 years would create an equalisation claim of roughly 1.2 million EUR — potentially forcing a sale or refinancing.

Prenup decision. Modify Zugewinngemeinschaft to exclude the business from the equalisation calculation. Keep equalisation on all other gains (including Marlene's salary-fed savings and any jointly purchased property). Keep Versorgungsausgleich (pension splitting) in place.

Cost. Two lawyer consultations 1,200 EUR. Notarial fees 1,800 EUR. Total 3,000 EUR. Signed 3 months before the wedding. Recorded in the notary's archive.

Outcome. The business is protected. The marital community functions normally for everything else. Marlene's pension equalisation claim remains intact. The Ehevertrag is fair and defensible.

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Worked Example: Couple B (Second Marriage with Children)

Anna, 47, divorced, two children aged 14 and 17 from her first marriage. About to marry Piotr, 50, also divorced, one daughter aged 19 from his first marriage.

Concern. Default Polish ustawowa wspólność majątkowa would cause income earned during the new marriage to be joint. If either dies, the surviving spouse would inherit a share that could dilute the children's inheritance.

Prenup decision. Intercyza notarialna — rozdzielność majątkowa (separation of property). Each spouse keeps their income and assets fully separate. Combined with mirror wills explicitly favouring biological children, the children's inheritance is protected.

Cost. Notarial fees 1,000 PLN. Two lawyer consultations 1,500 PLN. Total 2,500 PLN. Signed 2 months before the wedding.

Outcome. Each spouse runs their own finances. Joint expenses split via a small shared account funded by proportional contributions. Children's inheritance protected by clear separation of assets plus matched wills.

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Polish Reader Angle

Polish-specific points:

• Default works for most couples. Ustawowa wspólność majątkowa protects pre-marital property and inheritances by default. No prenup needed.
• Intercyza becomes valuable in five scenarios. Significant pre-marital assets, business ownership, second marriage with children, large age gap, family wealth.
• Costs. 500 to 1,500 PLN at notary. Add 500 to 2,000 PLN for lawyer consultations.
• Form. Akt notarialny. Both spouses physically present.
• Postnup. Permitted at any time during the marriage. Same form. Useful if circumstances change (one spouse starts a business, receives inheritance, etc.).
• No automatic pension splitting on divorce in Poland. Therefore the pension-protection provisions seen in DE or NL prenups are not relevant. Lower-earning spouse mitigates pension risk via individual IKE and IKZE.

A budgeting tool like Freenance, with multi-user shared dashboards and per-account privacy controls, helps couples in a rozdzielność majątkowa regime keep separate financial views while still tracking joint expenses cleanly. The Freenance Financial Readiness (FFR) score works per partner — relevant for couples whose finances are legally separate but operationally coordinated.

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Common Mistakes Couples Make

1. Signing too close to the wedding. Courts in most EU jurisdictions look closely at timing. Less than 4 weeks before the wedding is a common ground for contesting validity.
2. Sharing a lawyer. Each spouse should have independent legal counsel. Shared lawyers create a conflict of interest that can be cited to void the agreement.
3. Trying to cover unenforceable items. Custody, child support, and behavioural clauses are generally unenforceable. Including them can taint the rest of the agreement.
4. No updated asset list. A prenup based on outdated valuations is open to dispute. Refresh the asset schedule via postnup amendment every 5 to 7 years.
5. Assuming a prenup overrides estate planning. It does not. A prenup modifies property regime; the will modifies inheritance. Both are needed.
6. Not registering where required. NL huwelijksgoederenregister and ES Civil Registry registration are legally required for full enforceability.

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FAQ

Do we need a prenup if we have no significant assets? Usually no. The default marital regime in every EU jurisdiction handles wage-earner couples well.

Can we sign a prenup the week before the wedding? Yes legally, but doing so weakens enforceability. Aim for at least 4 weeks before.

Can a prenup waive child support? No. Child support is determined statutorily and cannot be waived in advance.

What happens if we move to a different EU country after signing? Under EU Regulation 2016/1103, the applicable law generally follows the first habitual residence after marriage unless the couple has explicitly chosen another law. Get advice before relocating.

Can we modify a prenup after signing? Yes. Same notarial form. The modification is technically a postnup.

Is a foreign-signed prenup enforceable in another EU country? Usually yes under EU Regulation 2016/1103, provided it satisfies the form requirements of the signing jurisdiction. Cross-border couples should always consult a notary in both countries.

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Sources

• German Federal Notary Chamber Ehevertrag statistics 2025
• French Notary Council contrat de mariage data 2025
• Italian National Notary Council separazione dei beni guidance
• Spanish Council of Notaries capitulaciones data 2025
• Dutch Royal Notary Association huwelijkse voorwaarden guidance
• Polish National Chamber of Notaries (KRN) intercyza statistics 2025
• EU Regulation 2016/1103 on matrimonial property regimes

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Disclaimer

This article is educational only. It is not legal advice. Marital property law, prenup form requirements, and enforceability of specific provisions vary by jurisdiction and individual circumstance, and they change. Consult a licensed family lawyer and a notary in your country before signing any marital agreement. Each spouse should have independent legal counsel. Freenance is a personal finance budgeting and tracking tool, not a licensed law firm.