The Property (Relationships) Act in New Zealand: the 50/50 rule, the exceptions and life insurance
New Zealand's Property (Relationships) Act 1976 gives each partner an equal share of relationship property, generally the family home and most property acquired during a marriage, civil union or de facto relationship of 3 years or more (ss2E, 11, retrieved 9 September 2026). Shorter relationships are divided by contribution instead, and couples can contract out under section 21.
What is considered relationship property in NZ?
Relationship property under the Act generally includes the family home and family chattels (regardless of when either partner acquired them), most property either partner acquires during the relationship, and property the couple agrees to treat as relationship property, and it is split under the Act's equal-sharing rule once the relationship has lasted long enough (Property (Relationships) Act 1976, s8 and s11, retrieved 9 September 2026). Separate property, such as an inheritance kept apart from the relationship or property owned before the relationship began, is generally treated differently, though it can sometimes become relationship property depending on how it was used or mixed with shared assets.
What is considered relationship property in NZ?
Relationship property generally means the family home and family chattels, plus most property acquired by either partner during the relationship, which is split equally between spouses, civil union partners or de facto partners once the relationship reaches 3 years (Property (Relationships) Act 1976, ss8 and 11, retrieved 9 September 2026). Property acquired before the relationship, or received individually by gift or inheritance, is generally separate property, though the specific facts of each case matter.
The 50/50 rule, and when it does not apply
What is the 3-year relationship rule?
The Property (Relationships) Act 1976 defines a "relationship of short duration" as one where the couple lived together for less than 3 years, or 3 years or more if a court considers it just to treat it as short given all the circumstances (Property (Relationships) Act 1976, s2E, retrieved 9 September 2026). Once a relationship passes the 3-year mark and is not treated as short by a court, the Act's full equal-sharing rules generally apply to relationship property.
What are some exceptions to the equal sharing of relationship property?
The clearest exception is a "relationship of short duration" (broadly, under 3 years), where the family home and chattels still generally share equally unless one partner's contribution was clearly greater, but other relationship property is instead divided according to each partner's actual contribution rather than automatically equally (Property (Relationships) Act 1976, s14, retrieved 9 September 2026). A written contracting-out agreement under section 21 is a further way couples can set their own rules instead of the Act's defaults.
How long do you have to claim relationship property in NZ?
This page does not have a sourced, general limitation period to state, since timeframes for a relationship property claim can depend on the specific circumstances, including whether the claim is made during the relationship, after separation, or after a partner's death. Get advice from a family lawyer promptly after separation or a death rather than relying on an assumed deadline.
Can my girlfriend or partner take half my house in NZ?
Can my girlfriend take half my house in NZ?
Potentially, yes, if the relationship is recognised as a de facto relationship that has lasted 3 years or more (or a court treats it as long enough despite being shorter), since the family home is relationship property under the Act and is generally shared equally regardless of whose name is on the title (Property (Relationships) Act 1976, ss8 and 11, retrieved 9 September 2026). A written contracting-out agreement made under section 21, with independent legal advice for each partner, is the way to protect a home you owned before the relationship began.
Is my wife entitled to half my assets?
Generally, relationship property, not all of your personal assets, is what is shared equally under the Act; separate property such as an inheritance kept apart, or an asset you owned before the marriage and did not mix into shared use, is generally treated differently (Property (Relationships) Act 1976, s9, retrieved 9 September 2026). The family home and family chattels are a notable exception to this separate-property protection, since they are treated as relationship property even if one partner owned the home before the relationship began, in most cases.
Contracting out: the New Zealand "prenup"
How does a couple opt out of the Property (Relationships) Act's default rules?
Under section 21, spouses, civil union partners, or de facto partners (or two people about to become one of those) can make a written agreement covering the status, ownership and division of their property, either during the relationship or on death, instead of relying on the Act's default equal-sharing rules (Property (Relationships) Act 1976, s21, retrieved 9 September 2026). Named Auckland firm PK Law prices a standard contracting-out agreement, aimed at couples early in a relationship who want to protect unequal deposits or inheritances, at $2,750 (PK Law, Pricing, retrieved 9 September 2026).
This table sets out what a contracting-out agreement is generally used for, and its typical cost from a named provider:
| What it's used for | Named provider example |
|---|---|
| Protecting an unequal deposit towards a family home | PK Law "Undo the Government Prenup" package, $2,750 |
| Protecting an inheritance or gift from becoming shared property | Same package |
| Protecting interests in a trust settled by a third party | Same package |
| Complex situations involving active trusts or companies | Priced separately, outside the standard package |
Source: PK Law, Pricing, retrieved 9 September 2026. This is one named firm's pricing as an example, not a market-wide average; get quotes from more than one provider.
Do both partners need their own lawyer for a contracting-out agreement?
This page does not have a sourced, general statement to give beyond the Act's own section 21 framework, which requires the agreement to be in writing; get advice from a family lawyer on the specific formal requirements (including independent legal advice for each party) that apply to your agreement, since getting these wrong can risk the agreement being set aside later.
Inheritances, gifts and life insurance under the Act
Is an inheritance relationship property in NZ?
Generally not. Property a spouse or partner acquires from a third person by succession, survivorship, gift, or as a beneficiary under a trust settled by someone else is not relationship property, unless it has been intermingled with relationship property to the point that it is unreasonable or impractical to treat it as separate (Property (Relationships) Act 1976, s10, retrieved 9 September 2026). Depositing inherited money into a solely-owned separate account and keeping it apart from shared finances generally preserves this protection; mixing it into a joint account used for shared expenses can lose it.
Does the family home stay separate even if I inherited it?
No. Section 10(4) of the Act specifically overrides the usual inheritance protection for the family home and family chattels: both are relationship property regardless of how they were acquired, unless a written agreement under Part 6 (a contracting-out agreement) specifically designates them as separate property (Property (Relationships) Act 1976, s10(4), retrieved 9 September 2026). This is one of the clearest reasons an inherited family home needs specific legal advice, since the general inheritance protection above does not apply to it.
Is a life insurance policy relationship property?
Partly, and specifically. The Act includes "the proportion of the value of any life insurance policy, or of the proceeds of such a policy, that is attributable to the marriage, civil union, or de facto relationship" within the definition of relationship property, alongside any policy of insurance over relationship property itself (Property (Relationships) Act 1976, s8(1)(g) and (h), retrieved 9 September 2026). In practice, this generally means the portion of a policy's value built up during the relationship can be relationship property, while a portion attributable to time before the relationship began may not be. See our guide to who gets your life insurance payout in NZ for how policy ownership, separately from this Act, decides who receives the money on death.
The Act draws a clear general line between relationship property and separate property, with two notable exceptions:
| Category | Generally relationship property (shared) | Generally separate property (not shared) |
|---|---|---|
| The family home and chattels | Always, regardless of who bought it or when | Only if a written contracting-out agreement says so |
| Property acquired during the relationship | Yes, in most cases | – |
| An inheritance, gift, or trust benefit from a third person | Only if intermingled with shared property | Yes, if kept separate |
| The proportion of a life insurance policy attributable to the relationship | Yes | The proportion attributable to before the relationship may not be |
Source: New Zealand Legislation, Property (Relationships) Act 1976, ss8, 9 and 10, retrieved 9 September 2026.
Relationship property and your estate plan
Relationship property rules interact with wills and life insurance in ways that are easy to miss. An inheritance you receive and keep separate is generally your own property under the Act, but a life insurance payout can behave differently depending on how the policy is owned; see our guide to who gets your life insurance payout in NZ for how ownership, not the Act, usually decides that question first. Separately, on death, a surviving spouse or partner can sometimes choose between their entitlement under a will (or the intestacy rules) and applying instead under the Property (Relationships) Act for a division of relationship property, a choice that generally needs independent legal advice to make properly (PK Law, Pricing, retrieved 9 September 2026; see our guide to dying without a will in NZ for the intestacy side of that choice).
Does the Property (Relationships) Act affect what I can leave in my will?
It can. Relationship property is generally shared between partners regardless of what a will says, so a will cannot simply give away your partner's half-share of the family home or other relationship property as if it were entirely yours to leave (Property (Relationships) Act 1976, s4A, retrieved 9 September 2026, which provides that other enactments, including wills, are read subject to this Act). A contracting-out agreement under section 21 is the way to set different rules by agreement, rather than a will alone.
The relationship types the Act covers
| Relationship type | Covered by the Act |
|---|---|
| Marriage | Yes |
| Civil union | Yes |
| De facto relationship (living together as a couple) | Yes |
| Dating without living together | No |
Source: Property (Relationships) Act 1976, general application provisions, retrieved 9 September 2026. Whether a specific relationship qualifies as de facto is assessed on the facts of the relationship, not a fixed checklist, so get legal advice if this is genuinely in dispute for your situation.
QuoteHub's read on relationship property and cover
QuoteHub's read is that relationship property is the single most overlooked factor in DIY estate planning, since a will only controls what you actually own; it cannot override your partner's existing half-share of relationship property under this Act. If you are blending assets from before a relationship, receiving an inheritance, or simply want certainty, a contracting-out agreement and a properly drafted will need to work together, not separately.
This page is part of our estate planning cluster. See making a will in NZ for how a will and relationship property interact, will templates in NZ for the free and paid options, dying without a will in NZ for the intestacy side of the same choice, testamentary trusts in NZ for protecting an inheritance from becoming relationship property, and who gets your life insurance payout in NZ for how a policy is treated separately from this Act. Our insurance and divorce guide, our insurance for couples guide, our insurance for blended families guide, our life insurance beneficiaries guide, our life insurance and inheritance guide and our estate planning and insurance guide go further into how cover fits around a relationship. For what happens once someone has died, see our when someone dies cluster, including probate in NZ and the executor of a will in NZ. See our life insurance product hub for cover options, our how does life insurance work in NZ guide for the basics, try our own free will service, and see how it works and our methodology for how QuoteHub builds its guides.
Financial advice is provided by Craig Smith Business Services Limited, trading as Smiths Insurance & KiwiSaver, a licensed Financial Advice Provider (FSP712931). QuoteHub is a trading name.
Adviser's view
People often assume an inheritance is automatically theirs alone under the Property (Relationships) Act, and that is broadly true, except for the family home and family chattels, which the Act treats as shared regardless of how they were acquired, even if one partner inherited the house outright before the relationship began. QuoteHub compared this exception against the general inheritance rule because it is the one place the Act's default surprises people who assumed inherited property was always protected.
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Cite this page QuoteHub NZ (2026). Relationship Property Act NZ: The 50/50 Rule Explained. www.quotehub.co.nz/guides/estate/relationship-property-act-nz. Updated 2026-09-09.
References
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