In Russia, everything a couple acquires during marriage is jointly owned by default — including a business built in those years, whoever's name is on it. A marriage contract is how you change that, but Russian law sets firm limits on what it can do, especially across borders.
Replace the default community-property regime with separate or shared ownership, over existing and future property — ring-fencing a business, an inheritance or specific assets from being split 50/50.
Govern personal (non-property) matters or anything about children, and it cannot leave one spouse in an 'extremely unfavourable' position — a court can void terms that go that far.
Russian family law starts from a rule many foreign nationals do not expect: under Article 34 of the Family Code, property acquired by a couple during their marriage is their joint property — owned equally, regardless of which spouse earned the money or whose name the asset is registered in. This community-property regime is the default, and it applies unless the couple has agreed otherwise in a marriage contract.
The consequence that catches business owners is direct. A company founded or grown during the marriage, a flat bought in one spouse's name, savings accumulated over the years — all of it is, by default, half the other spouse's. On divorce, it is divided; and even during the marriage, disposing of jointly-owned property can require the notarised consent of the other spouse. For a foreign entrepreneur who assumed their Russian venture was theirs alone, this is often an unwelcome discovery.
Everything acquired during the marriage is joint property by default — including a business built in those years, whoever's name is on it. On divorce it's divided; during the marriage, dealing with it can need your spouse's consent. Only a marriage contract changes this.
A marriage contract (брачный договор) is the instrument Russian law provides for changing the default. Under Article 42 of the Family Code, spouses can replace the community regime with a regime of separate ownership, shared ownership in defined proportions, or a mix — over all their property, over particular categories of it, or over the property of each spouse individually.
Crucially, it can cover both existing and future property. That means a contract can be written so that a business, and everything that business generates going forward, remains the separate property of the spouse who runs it — rather than becoming joint simply because it grew during the marriage. The contract can be concluded before the wedding (taking effect when the marriage is registered) or at any point during the marriage.
Russian marriage contracts are narrower than prenuptial agreements in some other countries, and the limits matter. Under Article 42, a contract cannot:
Regulate personal, non-property relations between the spouses — it is strictly about property and money.
Determine rights or obligations regarding children, including support or residence.
Restrict a spouse's legal capacity or their right to go to court.
Place one spouse in an 'extremely unfavourable position' — for example, stripping them of any right to property acquired during the marriage. A court can declare such terms invalid on that spouse's application.
That last limit is the one foreign nationals most often misjudge. A heavily one-sided agreement that would be enforceable elsewhere can be partly unwound by a Russian court as unconscionable, so a contract that is balanced and defensible is more robust than one that tries to take everything.
There is no restriction on a foreign national concluding a marriage contract in Russia, or on marrying a Russian citizen and doing so. But a contract concluded in Russia is governed by Russian law, which may conflict with the family-property rules of another country — and what you agree in Russia will not necessarily bind property located abroad.
The practical guidance notaries give is to use a Russian marriage contract for property and property rights situated in Russia, and to handle assets in other countries under those countries' own arrangements. A couple with a genuinely international estate often needs coordinated contracts in more than one jurisdiction, rather than a single Russian document that may not reach foreign assets. Where the spouses have no common citizenship or common country of residence, Russian conflict-of-law rules allow them to choose the law applicable to their contract — a choice worth making deliberately rather than by default.
A marriage contract concluded in Russia is governed by Russian law and won't necessarily bind foreign-situated assets. An international couple usually needs coordinated arrangements across jurisdictions, not a single Russian document.
For a business owner, this is usually the whole point. Without a contract, a company you build during the marriage is joint property, which has two uncomfortable effects: on divorce it can be divided or valued and paid out, and during the marriage major dealings with it can require your spouse's consent. Either can disrupt the business at the worst moment — a sale, a funding round, a dispute.
A marriage contract can ring-fence the business as separate property, so that ownership, control and future value stay with the spouse who runs it. Done well, it protects the company without stripping the other spouse of everything else — which, as above, is also what makes it hold up. For anyone whose main asset is a business rather than a salary, it is the single most effective piece of personal-asset planning available.
A marriage contract in Russia must be in writing and notarised — notarisation is a condition of validity, not a formality. Both spouses should genuinely understand what they are agreeing to, ideally with their own advice, because a contract entered without real understanding, or one that is extremely one-sided, is more vulnerable to challenge.
The steps are straightforward: agree the property regime you want, have the contract drafted to reflect it accurately and within the Article 42 limits, and execute it before a notary. For a foreign national, the drafting also has to account for translation, for which property the contract is meant to reach, and for how it interacts with any arrangements abroad. It is a modest exercise that prevents a very large problem.
Written form, notarised (a condition of validity), and within the Article 42 limits — no personal or child matters, and nothing that leaves one spouse in an extremely unfavourable position, which a court can void.
By default, yes. Under Russian family law, property acquired during the marriage — including a business founded or grown in that time — is joint property, owned equally regardless of whose name it's in or who runs it. On divorce it can be divided, and during the marriage some dealings with it may need your spouse's consent. A marriage contract is what changes this, ring-fencing the business as separate property.
Yes — there's no restriction on a foreign national concluding one, including with a Russian spouse. But a contract made in Russia is governed by Russian law and may not bind property located abroad. In practice it's used for Russian-situated property, with foreign assets handled under those countries' own arrangements — so an international couple often needs coordinated contracts, not a single Russian one.
No. Russian law won't enforce a marriage contract that places one spouse in an 'extremely unfavourable position' — for instance, leaving them with no right to anything acquired during the marriage. A court can void such terms on that spouse's application. A balanced contract that protects specific assets is far more robust than one that tries to take everything, which is a common mistake with foreign-style prenups.
Yes — a Russian marriage contract must be in writing and certified by a notary, and notarisation is a condition of its validity, not an optional step. It can be concluded before the marriage (taking effect on registration) or during it, and both spouses should genuinely understand its terms, ideally with their own advice.
Practical support for international business in Russia.