Cohabitation Agreement vs Marriage Under Dutch Law: Key Legal Differences Explained
In the Netherlands, couples who want to live together have several legal options to choose from. You can get married, enter into a registered partnership, sign a cohabitation agreement, or simply live together without any formal arrangement.
Each option comes with different rights, responsibilities, and legal protections.
The main difference between marriage and a cohabitation agreement is that marriage automatically creates specific legal rights and obligations regarding property, inheritance, and maintenance, whilst a cohabitation agreement only includes the terms you and your partner specifically agree upon and write into the contract.
Understanding these distinctions is essential before you decide which arrangement suits your situation best.
This article explains how cohabitation agreements and marriage differ under Dutch law. You’ll learn about property division, parental rights, tax treatment, inheritance rules, and what happens when relationships end.
We’ll also cover how registered partnerships and informal cohabitation compare to these two main options.
Cohabitation agreement or marriage?
Marriage and cohabitation agreements create vastly different legal frameworks in Dutch law. Marriage automatically generates a comprehensive set of rights and obligations, whilst a cohabitation agreement (samenlevingscontract) only establishes the specific terms you and your partner agree upon.
Definition and legal status
Marriage (huwelijk) is a formal legal institution recognised by the Dutch Civil Code. When you marry, you enter into a legally binding relationship that the state automatically registers and regulates.
Your marriage creates immediate legal consequences that apply regardless of whether you want them. A cohabitation agreement is a private contract between you and your partner.
It does not change your legal status as unmarried individuals. You remain legally single even after signing a samenlevingscontract.
The agreement only binds you to the specific terms written in the contract. The state treats married couples as a single legal unit for many purposes.
Cohabiting partners maintain separate legal identities even with an agreement in place.
Automatic rights and obligations
When you marry, Dutch law automatically gives you rights and responsibilities. These include inheritance rights, pension claims, and spousal maintenance obligations.
You receive these protections without needing to arrange them separately.
Automatic rights in marriage include:
- Right to inherit from your spouse without a will
- Entitlement to part of your spouse’s pension
- Claim to spousal maintenance after divorce
- Joint parental authority over children born during marriage
- Protection under matrimonial property law
A cohabitation agreement provides none of these rights automatically. You must explicitly include any provisions you want in your samenlevingscontract.
If you forget to address an issue, you have no protection. Your agreement only covers what you specifically negotiate and document.
Without a cohabitation agreement, you have virtually no legal rights regarding your partner’s property or income. Dutch law does not recognise “common-law marriage” or similar concepts.
Role of the Civil-Law notary
You must involve a civil-law notary (notaris) to create a valid marriage contract if you want to deviate from standard matrimonial property rules. The notary ensures your agreement complies with Dutch law and registers it properly.
However, you can marry without visiting a notary if you accept the default legal regime. For cohabitation agreements, a notary is not legally required.
You can draft a samenlevingscontract privately. However, most legal professionals strongly recommend using a civil-law notary.
A notary ensures your agreement is legally sound and enforceable. The notary also keeps the original deed, so its existence and content can always be proven.
The agreement itself does not have to be notarial, but buying a home together or transferring a share in real estate always requires a notarial deed.
Living arrangements and registration
Marriage registration is mandatory. The civil registrar records your marriage in the Basisregistratie Personen (BRP), the Dutch personal records database.
This registration creates your official marital status. All government agencies can access this information.
Cohabitation agreements are private contracts. You are not required to register your living arrangement anywhere.
However, you can voluntarily register your address together in the BRP. This shows you share a residence but does not change your legal status to “married.”
Some cohabiting couples register their samenlevingscontract with a notary for proof of its existence. This registration differs entirely from marriage registration.
It simply creates a verifiable record of your contract. Your living arrangement affects various administrative matters.
Banks, tax authorities, and insurance companies treat registered married couples differently than cohabiting partners, even with an agreement.
property and asset division: community of property and ownership
Under Dutch law, married couples automatically enter a community of property unless they arrange otherwise, whilst cohabiting couples maintain separate ownership of their assets and debts.
These default positions create fundamentally different financial situations that affect property division during the relationship and after separation.
Limited community of property vs separate ownership
When you marry in the Netherlands without a marriage contract, you enter a limited community of property (beperkte gemeenschap van goederen). This means all assets and debts acquired during your marriage become jointly owned, regardless of which partner earned the income or made the purchase.
Your separate property under this system includes:
- Assets you owned before marriage
- Inheritances and gifts received during marriage
If you cohabit without a cohabitation contract, you maintain complete separate ownership. Each partner owns only what they purchase or earn themselves.
Your partner has no automatic claim to your assets, even if you live together for decades. This creates practical challenges.
If you buy a house together whilst cohabiting, you must specify ownership shares in the deed. Without clear documentation, disputes arise when the relationship ends.
Marriage contracts and partnership agreements
You can modify the default property regime through contracts drawn up by a notary (notarissen). A marriage contract (huwelijksvoorwaarden) allows married couples to opt out of community of property entirely or adjust which assets fall within it.
A cohabitation contract (samenlevingscontract) serves a different purpose. It creates property rights that wouldn’t otherwise exist between unmarried partners.
You can agree to share specific assets, split living costs, or provide financial support if you separate. Prenuptial and partnership conditions must be laid down in a notarial deed to be valid; a cohabitation agreement can in principle be a private written contract, although pension funds and the tax authorities often require a notarial one.
The notary ensures you understand the legal implications and that the terms comply with Dutch property law. Notarial agreements are amended through a new notarial deed.
Prenuptial conditions are entered in the public matrimonial property register, which makes them effective against third parties such as creditors. A cohabitation agreement is not entered in any public register.
General community of property
Some couples choose general community of property (algehele gemeenschap van goederen) through their marriage contract. Under this regime, everything becomes jointly owned, including assets you brought into the marriage and gifts or inheritances you receive.
This creates complete financial unity. Your debts become your partner’s responsibility, and vice versa.
If one partner owned a house before marriage, it becomes jointly owned upon marrying under this regime. General community of property is less common today.
Most couples prefer limited community of property or complete separation of assets. You cannot create an equivalent arrangement through a cohabitation contract, as Dutch law only recognises general community of property within marriage or registered partnership.
Treatment of inheritances and gifts
Inheritances and gifts receive special protection under Dutch property law. When you’re married under limited community of property, any inheritance or gift you receive remains your separate property.
Your spouse has no share in it. Keep the money separate and keep the records, however: once inherited money is mixed with joint funds, proving that it was private becomes difficult.
For cohabiting couples, inheritances and gifts always remain separate property unless your cohabitation contract states otherwise.
The reverse is also possible: a testator or donor can stipulate in the will (testament) or deed of gift that the inheritance or gift does fall into the community of the recipient and their spouse.
Parental rights, children, and legal parenthood
Under Dutch law, married couples receive automatic parental authority over children born during marriage, whilst cohabiting parents must take deliberate legal steps to establish joint parental responsibility.
The legal status of children and the process for recognising parenthood differ significantly between these two relationship structures.
Automatic parental Authority in marriage
When a child is born during a marriage, the mother’s husband is the child’s legal parent by operation of law, and both parents automatically hold parental authority (gezag). For a female spouse of the birth mother, legal parenthood arises automatically only in specific situations, such as conception with an anonymous donor through a Dutch clinic; otherwise she has to acknowledge the child.
No administrative step is needed for the married parents, and both share equal rights and responsibilities from birth.
Joint parental authority normally continues after a divorce; the parents set out the arrangements in a parenting plan. Dutch family law treats both parents as equally responsible for decisions about healthcare, education and travel.
Acknowledgment of parenthood in cohabitation
If you are not married or in a registered partnership, the partner who did not give birth becomes a legal parent only by acknowledging the child (erkenning). This can be done at any municipality before the birth, when the birth is registered, or later. The written consent of the mother is required, and of the child as well once it is twelve or older.
Without acknowledgment, the other partner has no legal relationship with the child: no parental authority, no maintenance obligation and no statutory inheritance rights.
Joint parental authority
Since 1 January 2023, acknowledging a child automatically gives the acknowledging parent joint parental authority together with the mother. No separate application is needed. The rule is not retroactive.
For a child acknowledged before 1 January 2023, joint authority did not arise automatically. The parents can still obtain it with a joint application for registration in the authority register (gezagsregister) of the court, which can be done online, is free of charge and does not involve a hearing. Many parents who acknowledged a child years ago wrongly assume they already share authority, so it is worth checking the register.
Once joint authority is in place, both parents have the same legal authority to make decisions about the child as married parents.
Impact on children’s legal status
Children born to married parents and cohabiting parents have the same legal rights under Dutch law once parenthood is properly established. However, the initial registration and documentation process differs significantly.
Your child’s birth certificate will reflect the established legal parents at the time of birth. For married couples, both names appear automatically.
For cohabiting couples, only the birth mother’s name appears until acknowledgment occurs. Inheritance rights, surname options, and nationality considerations may vary based on whether acknowledgment happens before or after birth.
Children of married parents automatically inherit from both parents, whilst children of cohabiting parents can only inherit from an unacknowledged parent through a will.
Inheritance, pension schemes, and Tax implications
Marriage provides automatic legal protections for inheritance and pension rights, while cohabiting couples must take deliberate steps to secure these benefits. Tax treatment differs significantly between married couples and those living together, affecting income tax rates, social security deductions, and access to partner benefits.
Inheritance rights in marriage versus cohabitation
Spouses and registered partners have the most favourable inheritance tax position. In 2026 a surviving partner has a tax-free allowance of €828,035, and amounts above it are taxed at the lowest rates.
An unmarried partner is treated as a partner for inheritance tax only if the statutory conditions are met: a notarial cohabitation agreement containing a mutual duty of care and joint registration at the same address for at least six months before the death, or joint registration at the same address for at least five years without such an agreement. Both partners must be adults and not related in the direct line.
A partner who does not qualify falls in the category of other heirs, with a tax-free allowance of only €2,769 in 2026 and considerably higher rates. The allowances are adjusted every year.
Keep in mind that an unmarried partner inherits nothing without a will. A notarial will ensures that your partner receives your assets; the tax position then depends on whether your partner qualifies under the rules above. Have the tax consequences checked by a tax adviser.
Partner pension scheme eligibility
Many employer pension schemes in the Netherlands automatically include surviving spouse benefits for married couples. Your spouse receives pension payments after your death without additional documentation or proof.
Cohabiting partners often need a notarised cohabitation agreement to qualify for partner pension schemes. Some pension providers require you to register your partner and provide evidence of your relationship.
This process is not automatic. Check your pension scheme’s specific requirements.
Not all schemes extend benefits to cohabiting partners, even with proper documentation. You may need to purchase additional coverage or arrange alternative financial protection for your partner.
Tax partner status and income tax
Spouses and registered partners are tax partners by law. Unmarried partners are tax partners if they are registered at the same address and meet at least one further condition, for example a notarial cohabitation agreement, a child together, one partner having acknowledged the other’s child, registration as each other’s partner with a pension scheme, or joint ownership of the home they live in. If the conditions are met, tax partnership is not a matter of choice.
Tax partners can allocate certain joint income and deductions between them. Because the rules have further details and consequences for benefits, have your position checked by a tax adviser.
Social security and benefits
For means-tested benefits and allowances, what counts is usually whether you run a joint household, not whether you are married or have a cohabitation agreement. Unmarried partners who live together are then assessed as a household, which can reduce or end a benefit. The rules differ per scheme, so check them with the benefit agency before you move in together.
Social security contributions on your salary are not affected by whether you are married or cohabiting.
Establishing, formalising, and amending cohabitation agreements
In the Netherlands, you can create a cohabitation agreement through a civil-law notary or draft one yourself, though notarisation provides stronger legal protection and may be required for certain benefits. The agreement can include provisions about property division, financial responsibilities, and what happens if the relationship ends.
Requirements for a notarised cohabitation agreement
A notarised cohabitation agreement requires you to work with a civil-law notary (notaris) who will draft and formalise the document. You cannot register a cohabitation contract with a municipality like marriage or registered partnership.
Instead, the notary creates an official deed that holds legal weight. The notary ensures your agreement complies with Dutch contract law.
Both partners must appear before the notary to sign the document. You need to provide identification and discuss your wishes regarding property, finances, and other matters.
Some benefits, such as partner pension schemes, specifically require a notarised cohabitation agreement. Without proper notarisation, you may not qualify for these arrangements even if you have a written contract between yourselves.
The notary keeps the original agreement in their records. You receive certified copies for your own use when dealing with banks, insurance companies, or government agencies.
Options for drafting and amending agreements
You can draft a basic cohabitation contract yourself without involving a notary. However, this approach offers less legal certainty and won’t meet requirements for certain benefits or official recognition.
Working with notarissen (civil-law notaries) costs money but provides professional legal advice. The notary helps you consider issues you might overlook and ensures the agreement is legally sound.
You can amend your cohabitation agreement at any time if both partners agree. Changes to a notarised agreement require returning to a civil-law notary to create an official amendment or new deed.
If you initially created a non-notarised agreement, you can later have it notarised or create a new notarised version. This upgrade may become necessary if your circumstances change or you need official recognition for benefits.
Typical provisions in Dutch cohabitation contracts
Most cohabitation agreements address property ownership and how assets will be divided if the relationship ends. You can specify which items remain separate property and which are shared.
Common provisions include:
- Division of household expenses and bills
- Ownership of jointly purchased property or vehicles
- Financial contributions to mortgage or rent
- Bank account arrangements
- Responsibility for existing debts
- Terms for ending the cohabitation
The agreement can establish how you handle children born during cohabitation. Unlike marriage, parenthood is not automatic for the non-birth parent.
The contract can outline intentions regarding acknowledgement of parenthood. You may include provisions about maintenance payments if the relationship ends.
Dutch law doesn’t automatically provide support rights to cohabitating partners like it does for divorced spouses, so your contract fills this gap.
Ending relationships: legal consequences of dissolution
When a marriage or cohabitation agreement ends in the Netherlands, the legal procedures and consequences differ significantly. Marriage dissolution requires court involvement and triggers automatic rights to maintenance and property division, whilst terminating a cohabitation agreement follows the terms specified in your contract without mandatory court proceedings.
Divorce versus termination of cohabitation
Ending a marriage in the Netherlands requires a formal divorce through the courts. You must file a petition, and the court will issue a divorce decree that legally ends your marriage.
The procedure involves mandatory arrangements for any children, division of joint property, and potential spousal maintenance obligations. Terminating a cohabitation agreement is simpler.
You end the agreement in the way it prescribes, usually by written notice to your partner, preferably by registered letter, with reference to the contract’s dissolution clause. No court proceedings are required unless you cannot agree on matters involving children or property.
Key procedural differences:
- Court involvement: Marriage always requires court approval; cohabitation agreements do not
- Maintenance obligations: Divorced spouses may owe maintenance by law; cohabitants only if specified in their contract
- Timeline: a cohabitation agreement ends on notice; a divorce only takes effect once the court decision is registered with the civil registry
- Costs: ending a cohabitation agreement itself costs nothing, but a notarial transfer of a shared home does; divorce costs include court fees and legal fees
Division of property upon separation
Marriage creates an automatic community of property unless you agreed to different terms in a prenuptial agreement. This means all assets and debts acquired during the marriage belong to both spouses equally.
Upon divorce, the community is divided in equal shares unless otherwise agreed, which covers savings and the family home; pensions built up during the marriage are in principle equalised under a separate statutory scheme. Cohabitation agreements do not create automatic property rights.
You only share what your contract explicitly states. Without a written agreement, each partner keeps their own possessions and has no claim to the other’s property or pension.
The division of a jointly owned home presents challenges in both situations. If one partner wishes to keep the property, they must buy out the other’s share.
If neither can afford this, you may need to sell the home and split the proceeds or any remaining debt according to your ownership shares.
Effects on bank accounts and household costs
When you divorce, joint bank accounts must be divided according to the community of property rules or your prenuptial agreement. If the spouses cannot agree, the court decides on the division of the balance and the debts.
Both partners remain liable for joint debts until they are fully repaid or formally divided. For cohabitants, bank accounts are treated based on whose name appears on the account.
A joint account belongs to both partners equally, whilst individual accounts remain separate property. Your cohabitation agreement may specify different arrangements for household costs and shared expenses.
Important steps when separating:
- Close or convert joint bank accounts to individual accounts
- Notify your bank about the separation to prevent unauthorised transactions
- Cancel shared direct debits for household costs
- Update payment arrangements for utilities, rent, or mortgage
- Remove your former partner as an authorised user on your accounts
You remain liable for any debts in your name, regardless of who incurred them during the relationship. Joint debts require agreement on how to repay or divide them between both partners.
Registered partnership or unregistered cohabitation?
Dutch law offers two distinct alternatives between full marriage and a standard cohabitation agreement: registered partnership (geregistreerd partnerschap) and unregistered cohabitation. Each option carries different legal implications for property rights, inheritance, and dissolution procedures.
Registered partnership in Dutch Law
Registered partnership (geregistreerd partnerschap) creates a legal status nearly identical to marriage under Dutch law. When you enter a registered partnership, you gain automatic rights to shared property, inheritance, and pension benefits.
The legal framework applies the same community of property rules as marriage unless you specify otherwise in a partnership agreement. You receive spousal benefits under tax law and social security schemes.
Your partner automatically becomes your legal heir if you die without a will. A registered partnership without minor children can be ended without a court: the partners sign an agreement drawn up by a lawyer or civil-law notary, which is registered with the civil registry.
With minor children, or if the partners do not agree, dissolution goes through the court, as with a divorce. Property is divided under the same rules as for marriage, and the same maintenance obligations can apply.
Unregistered cohabitation and its implications
Unregistered cohabitation offers no automatic legal protection under Dutch law. You remain legally separate individuals regardless of how long you live together.
Property stays in the name of whoever purchased it. If your relationship ends, you have no legal claim to your partner’s assets or income.
You cannot inherit from each other without a specific will naming your partner as beneficiary. An unmarried life partner does appear in the statutory list of people a doctor consults when a patient cannot decide, but a written power of attorney removes any doubt about your position.
Many couples in unregistered cohabitation create a cohabitation agreement (samenlevingscontract) to establish basic property and financial arrangements. However, these agreements remain limited compared to the comprehensive protections of marriage or registered partnership.
Civil partnership versus marriage and cohabitation
Civil partnership in the Netherlands functions as a middle ground with substantial legal weight. The primary difference between registered partnership and marriage lies in dissolution simplicity—partners can end their relationship through mutual consent without court involvement if there are no minor children.
Both marriage and geregistreerd partnerschap provide far more legal security than unregistered cohabitation. You gain automatic inheritance rights, shared property ownership, and legal decision-making authority.
Tax benefits and pension rights apply equally to both formal arrangements. Unregistered cohabitation leaves you vulnerable in disputes and offers minimal legal recourse.
You must actively create legal documents to achieve even basic protections that registered partnerships and marriage provide automatically.
Frequently asked questions
How does a cohabitation agreement differ from marriage?
Marriage creates automatic legal consequences under Dutch law, whilst a cohabitation agreement only establishes the terms you and your partner specifically agree upon. When you marry, you enter into limited community of property by default unless you create a prenuptial agreement.
A cohabitation agreement requires you to define all terms yourselves. Marriage gives you and your spouse automatic rights to each other’s property and debts acquired during the marriage.
With a cohabitation agreement, you only share what you explicitly state in the contract. Nothing is assumed or protected by law beyond what you write down.
The government recognises marriage through official registration with automatic legal protections. Your cohabitation agreement follows general contract law but doesn’t grant the same automatic legal status as marriage under Dutch family law.
How does asset division differ between the two?
When you divorce in the Netherlands, the limited community of property system means assets and debts acquired during your marriage are typically split between you and your spouse. Assets you owned before marriage generally remain yours.
If you have a cohabitation agreement, asset division follows only what you wrote in your contract. The law doesn’t provide automatic rules for splitting property when your relationship ends.
You must rely entirely on the terms you and your partner agreed to when you created the contract. Without a cohabitation agreement, you have no legal framework for dividing assets at all.
Each partner keeps what they individually own. This can create problems if you bought property together or made financial contributions to each other’s assets.
What does each option mean for inheritance rights?
As a surviving spouse, you automatically inherit from your deceased partner under Dutch inheritance law. The exact amount depends on whether you have children and any will your spouse created.
Marriage gives you these inheritance rights without needing additional documentation. A cohabitation agreement doesn’t grant you automatic inheritance rights.
Your partner must create a will naming you as a beneficiary for you to inherit anything. Without a will, you receive nothing regardless of how long you lived together.
You also face different tax treatment on inherited assets. Surviving spouses benefit from favourable tax rates on inherited property.
Unmarried partners pay the same rates only if they qualify as partners for inheritance tax, for instance with a notarial cohabitation agreement and joint registration at one address for at least six months; otherwise the much higher rates for other heirs apply.
How do parental responsibilities differ?
When a child is born during your marriage, both you and your spouse automatically have legal parental rights. The law presumes both married partners are legal parents without requiring additional steps.
If you have a cohabitation agreement and give birth to a child, only the birth mother automatically becomes the legal parent. Your male partner must officially acknowledge the child to gain parental rights.
The same applies to a female partner of the birth mother. This acknowledgement process requires specific legal steps including registration with the municipality.
Without acknowledgement, the non-birth parent has no legal rights or responsibilities toward the child regardless of your cohabitation agreement.
Do cohabiting partners get the same tax benefits?
The Dutch Tax Administration may treat you as fiscal partners regardless of whether you’re married or have a cohabitation agreement. This treatment depends on meeting specific criteria including living together and having a notarised cohabitation agreement.
Married couples automatically qualify for certain tax advantages and partner pension schemes. With a cohabitation agreement, you may need to prove your relationship status to access similar benefits.
Some employer benefits and government programmes specifically require marriage rather than accepting cohabitation agreements. You should check individual programme requirements to understand which benefits you can access.
How do you make the agreement legally valid?
You should have a civil-law notary draft your cohabitation agreement to ensure it meets all legal requirements. Whilst you can technically create an agreement without a notary, many institutions require notarised agreements for benefits like partner pension schemes.
Your agreement must clearly state how you’ll handle property, debts, and finances during your relationship and if it ends. Vague terms can lead to disputes later.
Both you and your partner must sign the agreement voluntarily without pressure or coercion. You should each understand the terms fully before signing.
The notary can explain the legal implications and ensure the contract follows Dutch contract law principles.
