Cohabitation Agreement (New Zealand)

A Cohabitation Agreement in New Zealand records how a couple agree to divide their property and finances if the relationship ends, intended to be binding under the Property (Relationships) Act 1976.

In New Zealand, the legal framework for de facto relationships is primarily governed by the Property (Relationships) Act 1976 (PRA). When the PRA was significantly amended in 2001, its protections were extended to de facto couples — including same-sex couples — who have been living together for three years or more. The default rule under the PRA for qualifying de facto relationships is the presumption of equal sharing: relationship property (generally, the family home, family chattels, and property acquired during the relationship) is divided 50/50 on separation, much as it would be for a married couple.

A Cohabitation Agreement, made in accordance with section 21 of the PRA, allows de facto partners to contract out of these default rules. The partners can agree to keep all property separate, to define specific proportions for shared property, to exclude certain assets from division, or to set out any other arrangement that suits their circumstances. This flexibility is particularly valuable where one or both partners bring significant assets into the relationship, where there is a significant disparity in the partners' financial positions, where either partner has children from a previous relationship, or where the partners simply want clarity and certainty about their respective rights.

The Cohabitation Agreement operates alongside other key pieces of New Zealand legislation. The Contract and Commercial Law Act 2017 (CCLA) provides the general framework for contract formation, enforceability, and remedies. The Care of Children Act 2004 governs any arrangements relating to children, whose welfare is the paramount consideration and cannot be overridden by private agreement. The Income Tax Act 2007 and related tax legislation may have implications for the transfer of assets between partners.

A well-drafted Cohabitation Agreement provides both partners with peace of mind and reduces the potential for costly and stressful legal disputes if the relationship ends. It makes explicit what is otherwise implicit, confirms both partners understand their rights and obligations, and creates a clear record that can be relied upon by lawyers, mediators, or the courts if needed. For couples who have significant separate property or complex financial arrangements, a Cohabitation Agreement is an essential planning tool.

A New Zealand Cohabitation Agreement is particularly valuable — and often essential — in a range of circumstances. Understanding when this document is needed helps de facto couples make informed decisions about their legal arrangements.

Before or at the start of cohabitation. The ideal time to enter a Cohabitation Agreement is before or very soon after you begin living together. Addressing property and financial arrangements at the outset, when both partners are in agreement and the relationship is positive, is far easier and less contentious than trying to negotiate these arrangements after a dispute has arisen.

Where one or both partners own significant assets. If either partner owns a home, investment property, a business, substantial savings, a KiwiSaver balance, or other significant assets before the relationship, a Cohabitation Agreement can protect those assets from being classified as relationship property under the Property (Relationships) Act 1976. Without such an agreement, the default PRA rules could result in a 50/50 division of property that was never intended to be shared.

Where one partner has significant debt. A Cohabitation Agreement can clearly allocate responsibility for pre-existing debts, preventing one partner's liabilities from affecting the other.

Where there are children from previous relationships. If either partner has children from a previous relationship, a Cohabitation Agreement can protect assets that are intended to be preserved for those children, such as property held in trust or family heirlooms.

Where partners have significantly different financial positions. A significant disparity in income, assets, or financial prospects makes a Cohabitation Agreement particularly valuable for confirming that both partners' expectations are clearly documented.

Where partners are entering a second or subsequent relationship. Partners who have been through a property settlement from a previous marriage or de facto relationship often particularly appreciate the certainty that a Cohabitation Agreement provides.

At any time during a de facto relationship. Even if a couple has been living together for some time, it is not too late to enter a Cohabitation Agreement. The agreement can reflect the current state of the parties' property and financial arrangements and provide clarity for the future.

A well-drafted New Zealand Cohabitation Agreement should address several essential elements to be legally effective and practically useful.

Identification of the parties. The agreement must clearly identify both partners by their full legal names and addresses. If either partner is known by another name, that should also be noted.

Commencement of cohabitation. The date on which the partners began (or will begin) living together should be stated, as this is relevant to the three-year threshold under the Property (Relationships) Act 1976.

Separate property schedule. A clear and specific list of each partner's separate property as at the date of the agreement is essential. The more detailed the description — including addresses of real property, registration numbers of vehicles, account numbers, and valuations — the easier it will be to identify and protect this property in the future.

Jointly acquired property. The agreement should specify how property purchased together during the cohabitation will be owned and what will happen to it on separation. Will it be divided equally, in proportion to each partner's contribution, or by some other arrangement?

Financial arrangements during cohabitation. The agreement should address how ongoing household expenses — rent or mortgage payments, utilities, groceries, insurance, and other living costs — will be managed. A clearly documented arrangement prevents misunderstandings and financial disputes during the relationship.

Debt allocation. Pre-existing debts and those incurred during cohabitation should each be addressed to confirm both partners understand who is responsible.

Contracting out of the PRA. If the partners wish to contract out of the default rules of the Property (Relationships) Act 1976, the agreement must include a clear statement to that effect and the alternative arrangements that are to apply. The formal requirements of sections 21 to 21J of the PRA must be met, including independent legal advice for each partner from a separate lawyer before signing.

Children. The agreement should note any children from previous relationships and acknowledge that their care arrangements are governed by the Care of Children Act 2004.

Independent legal advice. Both partners should confirm that they have each received independent legal advice from a separate lawyer before signing. The lawyers must certify this on the agreement for it to be valid as a contracting-out agreement.

Governing law and amendment. The agreement should specify that it is governed by New Zealand law and that any amendments must be made in writing and signed by both parties. The forms-legal.com Cohabitation Agreement (New Zealand) provides a ready-to-use template that meets New Zealand legal requirements.