ServicesKarcher RechtsanwälteFamily law · Frankfurt

Marital agreement

For many couples, talking about a Ehevertrag (marital agreement) feels like planning for failure. Without one, the law decides across the board and the same way for every marriage, and for some lives that standard fits badly.

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What can be settled

The three levers

A marital agreement intervenes at three points: the matrimonial property regime, the Versorgungsausgleich (pension rights adjustment) and post-marital maintenance. It can be concluded before the marriage, at its beginning or in the middle of it (§ 1408 BGB).

With the property regime it is rarely a question of whether to depart from the standard, but how far. Gütertrennung (Separation of property) switches the Zugewinnausgleich (equalization of accrued gains) off entirely. The modified regime leaves the equalization standing in principle and takes specific values out of it, a business, a practice or an inheritance, or caps the equalization claim at a given amount (§§ 1408, 1414 BGB).

The Versorgungsausgleich (pension rights adjustment) can be adapted or excluded, but only within limits. The Familiengericht (family court) examines such clauses and can set them aside where they leave one side unprotected in old age (§ 8 VersAusglG). With post-marital maintenance the amount can be settled or capped; maintenance for the care of children you have together stays largely beyond reach, because it serves the child.

Only before a notary, and both at once

A marital agreement has to be notarized, and both spouses have to be present at the same time. Otherwise it has no effect (§ 1410 BGB).

The standard

Departing from the statutory property regime

Without an agreement you live in the Zugewinngemeinschaft (community of accrued gains), the community of Zugewinnausgleich (accrued gains). It is not a constraint but the starting point from which a marital agreement may depart, wholly or selectively. Three routes are open.

  • Community of accrued gains, the statutory standard without an agreement. Each side keeps its own assets, and only the gain achieved during the marriage is equalized. Joint ownership does not arise by itself.
  • Separation of property, by agreement. Switches the equalization of accrued gains off entirely, which is clear but often blunt. It hits the economically weaker side hard and brings disadvantages in inheritance and tax law with it.
  • Modified community of accrued gains, by agreement. The equalization stays in place in principle and only takes individual values out, the business for instance, or caps the claim. Usually the most balanced solution.
How the equalization logic behind it works

The occasions

When a marital agreement is worth having

Not every marriage needs one. There are constellations, though, in which the statutory standard fits badly and a clear arrangement protects both sides.

  • One side runs a company, a practice or holds shares in a partnership
  • Larger assets or an inheritance are to stay protected
  • The classic single-earner marriage, where one side looks after the children
  • Binational marriages with ties to more than one legal system
  • A second marriage, a blended family, children from an earlier relationship
  • A marked gap in income or assets
Which law applies at all where there is a foreign element

Whether it holds

Why some agreements do not hold up

German courts do not wave marital agreements through. They examine on two levels: validity at the time the contract was concluded (§ 138 BGB), and the way it is invoked when the marriage fails (§ 242 BGB).

An agreement does not wobble merely because it favors one side. It becomes critical where objective one-sidedness and an inferior bargaining position come together. The classic case is the agreement put on the table a few days before the wedding.

What makes a marital agreement robust, conversely, is advice on both sides, enough time before the appointment, and a recognizable compensation for the side that gives ground. For the entrepreneur’s marriage the Federal Court of Justice confirmed in 2025 that excluding the Zugewinnausgleich (equalization of accrued gains) is not in itself contrary to public policy (XII ZB 395/24). What remains decisive is whether one side was in an inferior position when the contract was concluded.

An agreement belongs months before the wedding

Not in the week before it. It is exactly that time which makes it robust later, because it defeats the objection that it came about under pressure. For the same reason an agreement made in the middle of the marriage is often the more durable one.

The cost

What a marital agreement costs

The notary’s costs are laid down by law and follow the value of the assets the agreement covers (GNotKG). They are not open to negotiation. On top of that comes the fee for advice and drafting. We settle your actual fee in the first consultation.

Because circumstances change, a second look at the agreement pays off after any larger turning point: the birth of a child, taking over a business, a move abroad.

When it is too late for that

Legal position as of July 2026. The provisions are in the BGB, in the Versorgungsausgleichsgesetz and in the GNotKG.

Marital agreement form

Gather the details for your agreement now

Personal details, what applies so far and what you want to settle. We review it before the meeting.

  • About half an hour, pause at any time
  • Stays on this device until you send it
  • Where you are unsure, we advise you in the meeting

Related topics

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All 11 practice areas

The first step

An appointment is not a decision

A marital agreement touches two very different fields, and here they are split between two people. The property regime, business assets and property are handled by Dietrich Karcher; he judges a clause by whether it will still add up in ten years’ time. For the Versorgungsausgleich (pension rights adjustment), maintenance and everything concerning children, Mieke Karcher is responsible.

We examine existing agreements for how robust they are, including ones concluded abroad. The notarization is carried out by a notary; we prepare it and go with you. You are under no obligation to hire us after the first consultation.

Under § 34 RVG (German Lawyers’ Fees Act), the first consultation costs at most €226.10 including VAT. If we take on your case, this fee does not apply. How the fees are calculated

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