Prenuptial Agreement Austria
Prenuptial Agreement in Austria — Form, Clauses, Cross-Border Aspects
Orientation
Overview
If you are considering a prenuptial agreement in Austria, the most important thing to understand upfront is this: Austrian law imposes strict formal requirements that often surprise couples who are used to a different legal system. A prenup regulates how assets, property and — in some cases — maintenance and inheritance rights are handled between spouses, either during the marriage or in the event of divorce. For international couples, especially those relocating to Vienna, the question of whether an existing agreement actually holds up under Austrian law is critical.
We advise on prenuptial agreements in English and German. Dr. Theresa Kamp is admitted in Austria (Vienna Bar) since 2022, recognised in Der Standard 2025 and listed by the U.S. Embassy Vienna under Legal Assistance. If you and your partner come from different legal systems, we understand both sides of that equation. Everything you share with us is protected by attorney-client confidentiality from your very first contact.
This page provides an overview of the legal framework, typical clauses, cross-border considerations and the steps involved. It offers general orientation — not legal advice for your specific situation. Individual circumstances always require individual assessment.
Definition
What is a prenuptial agreement under Austrian law?
A prenuptial agreement (Ehevertrag) is a contract between spouses or fiancés that regulates their property relations in a way that deviates from the statutory default rules. In Austria, the statutory default is separation of property during the marriage — meaning each spouse retains ownership of their own assets. At divorce, however, a specific set of division rules applies to marital property and savings. A prenup in Austria allows couples to modify those rules by agreement.
An agreement can be entered into before or during the marriage. When signed after the wedding, it is often referred to as a postnuptial agreement — the same formal requirements apply.
What it typically addresses:
- Clarity on how assets are divided if the marriage ends
- Protection of business interests or individually contributed property
- Arrangements related to spousal support
Is a prenuptial agreement the right step for you?
We look at your assets, your plans and the form your agreement needs in order to hold up under Austrian law.
Notariatsakt
Strict form requirements in Austria (notarial deed)
This is the single most important point for international couples: an Austrian prenuptial agreement must typically be executed as a notarial deed (Notariatsakt). The consequences of failing to meet the required form are severe — the agreement, or the affected provisions, may be null and void.
Austrian law differentiates depending on what the agreement covers. For provisions concerning marital savings and the marital home, a notarial deed is mandatory. For provisions relating to other marital property (general household items, for example), written form may suffice. In practice, most comprehensive prenuptial agreements are executed as notarial deeds to ensure validity across all categories.
An Austrian Notar (civil-law notary) is a specially appointed legal professional who drafts the deed, provides mandatory legal instruction to both parties and ensures all formalities are met — a role that goes well beyond simply witnessing signatures.
A common point of confusion for international couples: a foreign notarisation — for example, a signature before a notary public abroad — does not by itself satisfy the Austrian requirements. A prenup signed abroad is not automatically an Austrian notarial deed.
Scope of the agreement
What can you regulate in an Austrian prenup?
Property division in case of divorce: deviating from the statutory rules
Austrian law provides default rules for dividing marital property and savings upon divorce. A prenup can modify these rules — for example, by excluding specific assets from division or defining a different allocation ratio. This is particularly relevant for real estate brought into the marriage, savings accumulated before the wedding, or investment portfolios managed by one spouse.
Further reading: Division of assets
Maintenance and support clauses (and typical restrictions)
Spouses can include provisions regarding post-marital maintenance (nachehelicher Unterhalt). However, Austrian courts review these clauses for fairness. A blanket “no support ever” clause carries significant risk — especially where one spouse has been economically dependent, has reduced working hours for childcare, or would face hardship.
An important limitation to be aware of: Austrian law prohibits an advance waiver of the right to spousal support as such during the marriage. In other words, a spouse cannot validly renounce their fundamental entitlement to marital support before it arises. Any maintenance-related clause should be drafted with this restriction in mind.
Community of property vs. separation of property (Austrian default)
Separation of property is the statutory default in Austria. Spouses do not need a contract to maintain separate ownership during the marriage (this does not mean in the case of a divorce). However, it is important to know that the law in Austria (without a contract) only determines separation of goods until the divorce. When a couple divorces, by default everything that was accumulated by (even one party) during the marriage is to be divided. This is however something that can be addressed in a prenupt.
Court review
Limits to freedom of contract: when clauses may be invalid
Unconscionability and “moral standards” (court review)
Austrian courts can review prenuptial clauses for fairness. If a clause places a disproportionate burden on one party — particularly the economically weaker spouse — it may be declared void as contrary to accepted moral standards (Sittenwidrigkeit, § 879 ABGB). Courts have applied heightened scrutiny, for instance, where a homemaker spouse waived virtually all rights.
Protection of the economically weaker spouse
Red flags that increase the risk of a clause being struck down:
- No independent legal advice for one party
- Extreme imbalance in what each spouse retains
- Waiver of nearly all claims (assets, support, inheritance) combined
- Agreement signed under time pressure shortly before the wedding
- Significant language barrier without adequate translation
- Lack of full financial disclosure
- Signing during pregnancy or other vulnerable circumstances
Not sure whether your agreement would hold up?
We review existing and planned prenuptial agreements against Austrian form requirements and the fairness standards courts apply.
When it makes sense
When is a prenup sensible in Austria?
A prenuptial agreement is worth considering in situations such as:
- Significant difference in wealth/income between the partners
- Business ownership or freelance practice — especially where business value and personal assets overlap
- Cross-border couples who may face conflicting legal systems (see International family law) — including US-Austrian couples relocating to Vienna
- Second or third marriage, particularly with children from previous relationships
- Substantial real estate contributed by one partner
- Planned relocation to or from Austria during the marriage
Clauses in practice
Typical clauses (examples you will often see)
Protecting brought-in assets and documenting contributions
Assets brought into the marriage (eingebrachtes Vermögen) can be documented and excluded from division. This includes listing renovations or improvements paid for by one spouse — with clear records of amounts and sources.
Excluding a business from division (and why wording matters)
Business interests are often a priority. Precise wording matters because valuation questions (goodwill, cash reserves, profit expectations) can lead to disputes if the clause is vague. The goal is a provision that is clear enough to hold up in court.
Marital home: use after separation and practical arrangements
Clauses addressing who stays in the shared home after separation — and under what conditions — are common. These arrangements must be realistic and fair; overly one-sided provisions risk being overridden by a court.
Support arrangements for divorce scenarios
Examples include step-down models (support decreasing over time), time-limited payments, or provisions linked to childcare responsibilities. The key is that the arrangement does not leave one spouse without adequate protection.
During the marriage
Postnuptial agreements in Austria (agreements during marriage)
A postnuptial agreement follows the same rules as a prenup: it must be executed as a notarial deed (for marital savings and the marital home) and can cover the same topics.
€Costs
Costs: notary fees and legal advice (typical ranges)
Attorney advice (drafting, review, strategy) is charged separately. Final costs depend on the complexity of the asset situation, the number of draft revisions and whether cross-border issues are involved.
More on fees: Fee information
Enforceability
Can a prenup be challenged in Austria?
Yes. Typical grounds for challenging a prenuptial agreement include:
- Unconscionability — the agreement is grossly unfair (§ 879 ABGB)
- Mistake — a party was materially misinformed about facts or legal consequences (§ 871 ABGB)
- Duress or threats — the agreement was signed under coercion (§ 870 ABGB)
- Major change of circumstances — rare, but possible if the basis of the agreement has fundamentally shifted
What strengthens enforceability:
- Full and honest financial disclosure by both parties
- Balanced provisions (not one-sided waivers)
- Sufficient time between signing and the wedding
- Clear, understandable language (with translation where needed)
- Both parties receiving independent legal advice
Cross-border
Prenups with cross-border elements (EU/US and relocation)
EU couples: Matrimonial Property Regulation (EU) 2016/1103 (overview)
For couples with connections to more than one country, this regulation determines which country’s law applies to their matrimonial property regime. Austria participates in the enhanced cooperation. The regulation has universal application — the law it points to applies even if that is the law of a non-EU state. Early planning is worthwhile, because the applicable law can affect the validity and scope of a prenup.
US–Austria scenario: recognition and practical consequences
A prenup signed abroad — including in the United States — may not be applied one-to-one in Austria. Austrian courts evaluate it against Austrian form requirements and fairness standards, and a foreign notarisation does not by itself satisfy the Austrian notarial-deed requirement.
For US-Austrian couples in particular — whether one partner is a US national living in Vienna, or you are both planning to relocate to Austria — having your agreement reviewed and, where necessary, re-executed under Austrian law gives you the clarity that your prenup will hold up where you live.
Frequently asked questions
FAQ — Prenuptial agreement Austria
Is a prenuptial agreement valid in Austria?
Yes. Austrian law expressly allows spouses and fiancés to enter into prenuptial agreements regulating their property relations. However, the agreement must meet strict formal requirements — most importantly, execution as a notarial deed for provisions concerning marital savings and the marital home. Clauses that are unconscionable or grossly unfair may be declared void by a court.
Do we need a notary for a prenup in Austria?
Yes. A prenuptial agreement concerning marital savings and the marital home must be executed as a notarial deed (Notariatsakt) by an Austrian civil-law notary. For other marital property, written form may suffice, but in practice most comprehensive agreements use the notarial deed form. The notary also provides mandatory legal instruction to both parties.
Is a US prenup valid in Austria?
A prenup signed abroad, including in the United States, is not automatically applied one-to-one in Austria. Austrian courts assess whether its content meets Austrian fairness standards.
Can we sign a prenup after marriage in Austria?
Yes. A postnuptial agreement is legally possible and follows the same formal requirements (notarial deed).
Can a prenup exclude all assets from division in divorce?
In principle, spouses have broad freedom to agree on how assets are divided. However, a complete exclusion of all claims — especially when combined with support waivers — may be considered unconscionable if it leaves the economically weaker spouse without adequate protection.
Can we waive spousal support in Austria?
Support arrangements can be modified by agreement, but Austrian law prohibits an advance waiver of the fundamental right to spousal support during the marriage. A full and unconditional waiver of post-marital support is also risky — courts may set aside such a clause if it would result in serious hardship, particularly where one spouse was economically dependent during the marriage.
How much does a prenup cost in Austria?
Notary fees are set under the statutory Notarial Tariff Act (NTG) and depend on the value of the assets covered. Attorney advice for drafting or reviewing the agreement is charged separately. Total costs depend on the complexity of the matter and the number of revisions.
Can a prenup be challenged in court?
Yes. A prenuptial agreement can be challenged on grounds including unconscionability, mistake, duress, or — in rare cases — a fundamental change of circumstances. The risk is reduced through full disclosure, balanced terms, clear language, and independent advice for both parties.
What happens if we do nothing (no prenup) in Austria?
Without a prenup, the statutory default rules apply. During the marriage, each spouse owns their assets separately. Upon divorce, marital property and savings are divided according to the statutory framework — which may or may not align with what you would have agreed on individually.
Step by step
How the prenup process typically works (step-by-step)
Clarify goals and assets — Identify what each partner brings to the marriage, what needs protection, and what your priorities are.
Gather disclosures and documents — Compile financial records, property documentation, business valuations, and any existing agreements.
Draft key clauses — Develop the substantive provisions based on your goals and legal advice.
Review for fairness and cross-border issues — Assess whether the draft meets Austrian fairness standards and whether international aspects require attention.
Coordinate with the notary — The notary reviews the draft, provides legal instruction and prepares the notarial deed.
Sign and store the deed — Both parties sign before the notary. The deed is stored by the notary’s office.
Review and update after major life changes — A prenup should be revisited if circumstances change significantly (children, relocation, major financial shifts).
Related topics
For a broader overview of cross-border family law matters, including jurisdiction and applicable law in international divorces, see International family law. Details on the statutory rules for dividing assets upon divorce are explained at Division of assets. For information on how legal fees are structured, see Fee information. Additional frequently asked questions are collected at FAQ hub.
Legal basis
Legal Basis & Update Note
Legal status as of: 07/2026
Key statutes:
- ABGB (Austrian Civil Code): § 1217 (prenuptial agreement — general), §§ 1233–1236 (community of property), § 1237 (statutory property regime — separation of property), § 879 (unconscionability / moral standards), § 870 (duress), § 871 (mistake), § 94(3) (prohibition on advance waiver of spousal support entitlement during marriage)
- EheG (Marriage Act): §§ 81–97 (property division upon divorce), § 97 (prenuptial / postnuptial agreement — notarial deed required for marital savings and the marital home; written form for other marital property)
- NotAktG (Notarial Act Law): § 1(1)(a) (notarial deed requirements)
- NTG (Notarial Tariff Act): notary fee schedule
EU legislation:
- Regulation (EU) 2016/1103 on matrimonial property regimes (EUR-Lex)
Relevant case law (Austrian Supreme Court — OGH): Austrian courts, including the OGH, have addressed the enforceability and fairness review of prenuptial agreements in a number of decisions — in particular regarding unconscionability of one-sided provisions, heightened scrutiny for agreements signed during marital crises, and the assessment of foreign prenuptial agreements under Austrian law. Specific decisions can be researched via the RIS database (ris.bka.gv.at).
Institutional sources:RIS (Rechtsinformationssystem des Bundes) — ris.bka.gv.at · Austrian Notarial Chamber (ÖNotK) — notar.at · Austrian Federal Ministry of Justice (BMJ) · JUSLINE — commentary on § 97 EheG
Your next step: Arrange a confidential initial consultation. We will clarify your situation, your goals and the sensible next steps — without obligation.
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