Unmarried couples living together in Ireland do not have the same automatic legal rights as married couples. However, the Civil Partnership and Certain Rights and Obligations of Cohabitants Act 2010 created a statutory framework that gives "qualified cohabitants" the right to apply to court for financial relief when a long-term relationship ends. A cohabitation agreement allows couples to set their own terms — or to opt out of the statutory scheme entirely.
What the 2010 Act Changed
Before the Civil Partnership and Certain Rights and Obligations of Cohabitants Act 2010 came into force, unmarried cohabiting couples in Ireland had virtually no legal recourse against each other when a relationship ended, regardless of how long they had lived together or how much one partner had contributed to the other's financial position. Property went to whoever held legal title. There was no maintenance obligation. No automatic right to a share in a shared home existed.
The 2010 Act introduced a "redress scheme" for qualifying cohabitants. Under Part 15 of the Act, a qualified cohabitant may apply to court for a property adjustment order, a compensatory maintenance order, a pension adjustment order, or a share in the estate of a deceased cohabitant who died without leaving adequate provision for them.
This was a significant shift. For the first time, the law recognised that long-term cohabiting relationships involve financial interdependence that deserves some legal protection on breakdown.
Who Counts as a "Qualified Cohabitant"?
Not every couple living together can avail of the redress scheme. To qualify, a person must have been:
- In an intimate and committed relationship with the other person
- Living together as a couple for at least five years (or two years if the couple has a child together)
- Not married to or in a civil partnership with someone else during the period of cohabitation
The court also takes into account the degree of financial dependence of one partner on the other, and whether the couple had previously been married to each other.
The courts have discretion in applying these criteria, and borderline cases do arise. A cohabitation agreement can be useful precisely because it avoids the uncertainty of judicial assessment.
How a Cohabitation Agreement Works
A cohabitation agreement is a written contract between two people who are living together or intending to live together, setting out their rights and obligations in relation to property, finances, and related matters.
The Civil Partnership and Certain Rights and Obligations of Cohabitants Act 2010 expressly permits cohabitants to opt out of the statutory redress scheme by entering a cohabitation agreement, provided certain conditions are met. Under section 202 of the Act, an agreement that purports to exclude the redress scheme is enforceable only if both parties:
- Received independent legal advice before signing, or
- Were informed of the right to take legal advice and chose not to do so, and
- The agreement is in writing and signed by both parties
Where these conditions are met, the court must give effect to the agreement unless it would cause serious injustice.
You can download a free cohabitation agreement template on forms-legal.com to start setting out your agreed terms before seeking legal advice.
What a Cohabitation Agreement Should Cover
A well-drafted cohabitation agreement typically addresses:
Property ownership: Who owns the family home — is it held jointly, and in what shares? What happens to it if the relationship ends? If one party owns the property and the other moves in, what contribution (if any) does the non-owner make, and does that entitle them to any share of the equity?
Household finances: How are living expenses shared? Are there joint bank accounts, and how are contributions managed?
Debts and liabilities: Is each party responsible only for their own debts, or are joint debts shared?
What happens on separation: Who stays in the home? How are jointly owned assets divided? Is there any financial support obligation?
What happens on death: Cohabiting partners do not inherit from each other automatically under Irish law. The 2010 Act allows a qualifying cohabitant to apply for provision from the estate of a deceased partner, but this right can be excluded by agreement, and in any case it is subject to court discretion. Many couples address inheritance by making wills rather than relying on the Act.
Opting Out vs. Opting In
The redress scheme under the 2010 Act is the default safety net for couples who do not make any agreement. For couples who prefer the certainty of their own terms — particularly where one partner has significantly more assets than the other, or where both are financially independent — a cohabitation agreement that opts out of the scheme can be valuable.
Opting out is not always the right choice. For a financially weaker partner who has given up career opportunities to support a relationship or raise children, the statutory redress scheme provides important protection that should not be waived lightly. Independent legal advice is essential before signing any agreement that excludes these rights.
Couples can also use a cohabitation agreement to opt into a specific sharing arrangement without fully excluding the Act — for example, by specifying how property is to be divided while leaving the court's discretion intact on maintenance questions.
Children and Parental Rights
A cohabitation agreement does not affect parental rights and responsibilities in relation to children. Mothers have automatic guardianship under the Guardianship of Infants Act 1964. Unmarried fathers can obtain guardianship by agreement with the mother (documented in a statutory declaration) or by court order. A cohabitation agreement cannot confer or remove guardianship rights, and any arrangements about children remain subject to the court's overriding obligation to act in the child's best interests.
Why Not Just Get Married?
Many couples ask this question, and the answer depends entirely on their circumstances and preferences. Marriage in Ireland creates automatic rights in relation to succession (the "legal right share" under the Succession Act 1965), the shared home (under the Family Home Protection Act 1976), and financial provision on judicial separation or divorce.
For couples who do not wish to marry or who want to structure their financial relationship in a particular way, a cohabitation agreement provides a practical alternative — particularly for property matters, where the 2010 Act's redress scheme may not provide the precise outcome either party wants.
Frequently Asked Questions
Does a cohabitation agreement need to be witnessed or notarised in Ireland?
The Civil Partnership and Certain Rights and Obligations of Cohabitants Act 2010 requires that an agreement opting out of the redress scheme be in writing and signed by both parties. Notarisation is not required, but having the agreement witnessed and signed in the presence of solicitors (which is standard practice when both parties are taking independent legal advice) provides a record that the formalities were complied with.
Can we write a cohabitation agreement after we have already been living together for years?
Yes. There is no requirement that a cohabitation agreement be signed before the couple begins cohabiting. However, the longer the couple have lived together and the more financially intertwined their affairs, the more important independent legal advice becomes — particularly for the partner with fewer assets, who needs to understand what they would be giving up if they agree to opt out of the statutory scheme.
What if one of us is a non-Irish national?
Residency or nationality does not affect whether the 2010 Act applies, but it may be relevant to the agreement's enforceability if the couple later moves abroad. If either partner has assets or property in another country, the agreement should address governing law and potentially be reviewed by a lawyer familiar with that country's rules.
Is a cohabitation agreement the same as a civil partnership?
No. A civil partnership is a formal legal status registered under the Civil Partnership and Certain Rights and Obligations of Cohabitants Act 2010, available to same-sex couples (before marriage equality in 2015 made this route less common). A cohabitation agreement is a private contract and creates no formal legal status — it simply sets out the terms the couple have agreed.
