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A laughing young couple is holding a moving box and a potted plant.

In practice, living together in cohabitation may be very similar to a relationship in a registered partnership or marriage. Legally, however, there are major differences. To avoid any negative impacts, unmarried couples should be proactive and make certain arrangements between themselves. We explain the essential aspects.

What does “cohabitation” actually mean?

“Cohabitation” is not a legal term and is not clearly defined. It refers to a couple who live together without entering into a marriage or registered partnership. The two parties form a living community in a similar way to a family. This means that they live in the same household and support each other – but without a marriage certificate or other official document to recognize their relationship. Cohabitation is a widespread form of living together.

What are the differences between cohabitation, registered partnership and marriage for all?

There are no specific legal provisions applicable to cohabitation. This is a big difference compared to the other two forms of cohabitation: marriage and registered partnership. Regulations for married couples and registered partners generally do not apply to cohabiting couples.

The consequences can be seen in many areas of life, from tax returns to adoption law and inheritance.

Advantages of cohabitation

In principle, a cohabiting couple can take advantage of their legal freedom to shape their own lives. They can make their own personal arrangements to suit their individual needs.

The fact that they are still legally regarded as individuals offers certain advantages for cohabiting partners. Submitting two individual tax returns instead of one joint declaration regularly results in an advantage in terms of tax progression. Taxes on income and wealth are often lower.

Cohabiting couples also have a certain advantage over married couples when it comes to OASI pensions. Cohabiting partners draw two single pensions, while married couples can draw a maximum of 150 percent of a single pension with their combined pension. The cohabiting couple’s pension can be up to 33 percent higher than that of a married couple.

Disadvantages of cohabitation

However, cohabitation also involves risks. Unlike in a marriage or a registered partnership, the partners in a cohabiting couple have little legal protection. There is no mutual legal obligation to guarantee assistance, fidelity or financial support. What is more, cohabitation has no influence on property ownership or debts.

If one partner dies, there are no compulsory inheritance portions or widow’s/widower’s pensions to offer mutual financial protection. And there is no fundamental power of representation to the outside world – even if your partner is incapable of judgment.

In principle, children of married parents and of unmarried parents are treated equally. However, there are differences in some areas. For example, legally valid paternity requires a declaration by the partner or a court decision for a cohabiting couple – but not for married partners. There are also legal disadvantages compared to married couples, for example regarding adoption rights.

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What needs to be agreed upon when living in cohabitation?

There are no legal rules to govern many aspects of cohabitation. Precisely because of this, couples should use this freedom to set out their own individual rules in a cohabitation agreement. They can make contractual arrangements for maintenance contributions from each partner, the division of joint household costs, payments to the joint account and the division of responsibilities, for example, or they can grant each other a power of attorney. They should also investigate drawing up an advance care directive, a will and an inheritance contract, as well as checking the beneficiary provisions of their pension fund.

It is important to examine these documents and declarations regularly and to amend them if necessary.

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Cohabitation agreements

It is best to settle any major financial issues in a cohabitation agreement. This will allow you to make your own individual arrangements. You can determine how much each partner should contribute to living expenses, for example.

You should also specify what will happen if you split up unexpectedly, for example who will keep any jointly purchased goods or continue living in your joint home. Agreements about who will take responsibility and pay for the children are particularly important.

What happens when a cohabiting couple separates?

The separation of a cohabiting couple is not subject to any formalities. There is no legal protection for the two parties involved. If they have signed a cohabitation agreement that sets out provisions for a potential separation, these conditions will apply – provided that the clauses are legally valid. If no such agreement has been signed, the former couple can determine the separation details retrospectively in a dissolution agreement and ensure legal protection in this way.

It should be noted that any joint contractual obligations remain in force despite the separation. For example, the lease on a jointly rented apartment can only be terminated by the two parties together. If one partner moves out, they are still legally liable for their share of the rent.

If the ex-partners are unable to agree on an amicable division of assets and household effects or to make their own maintenance payment arrangements, their only option is to take the matter to court. Legal action costs time and money, and can be very stressful. It is therefore advisable to seek an out-of-court solution in advance.

When a cohabiting couple separates, there is no legal basis for making claims for maintenance payments or other financial support.

Conclusion

It is easy to start living as a cohabiting couple by setting up a joint household. To ensure that the relationship remains just as successful, cohabiting couples should decide on and document their own rules. Cohabitation agreements, inheritance contracts and wills offer mutual protection. Anticipatory agreements are also important in order to avoid unnecessary conflicts or legal proceedings if the couple separates.

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