Moving in together in NZ, the property talk
Updated 2026-08-09. General information, not legal advice.
Moving in together in New Zealand does something most couples never think about: it usually starts (or confirms) a de facto relationship, and with it a clock. At about three years, the Property (Relationships) Act 1976's equal sharing rules generally apply, and the home you live in, whoever owns it, is usually first on the list. None of that is a reason not to move in. It is a reason to have one honest conversation first, while the topic is easy and the stakes feel small.
What actually changes when you move in?
Day one, very little: short de facto relationships mostly sit outside the Act. What changes is trajectory. The flat one of you owns becomes the family home; wages start paying shared bills; savings, furniture and habits mix. Each of those is harmless alone, and together they are exactly how separate property converts into relationship property over time. By year three the default answer to "whose is it?" has quietly become "both of ours, equally" for a lot of what you each thought was yours.
The conversation to have before the boxes
Three questions cover it. Whose place are we living in, and what do the occupier's payments mean, board, or building a share? What stays each of ours, the KiwiSaver balances, the savings, the car, the things owned before? And what do we want to build together, and share, from here? If your answers match the Act's defaults, you are done, genuinely. If they do not, write them down properly: a contracting out agreement turns tonight's easy conversation into rules that hold, and costs least when done early.
Renting together, flatmates, and grey areas
Renting together changes the numbers but not the law: the Act cares about the relationship, not the tenancy, and everything above applies with a rented family home too. And note the boundary from the other side: two people sharing a flat as genuine flatmates are not a couple, however long they share, because the whole picture of a shared life is what defines de facto, not the address. It is couples in the middle, together, committed, semi-merged, who should assume the clock is running.
Common questions
- Does moving in together give my partner rights to my house?
- Not immediately, but the house you live in together generally becomes the family home, and once the Act applies (about three years) the family home is usually shared equally regardless of whose name is on the title. A contracting out agreement made before or when you move in can set a different rule.
- Should we get a prenup before moving in together?
- If either of you brings meaningful assets, a home, a deposit, savings, KiwiSaver, or expects an inheritance, it is the cheapest insurance you will ever arrange, and the conversation is easiest now. If you both bring little and want the Act's defaults, you may reasonably skip it.
- Do the three years start from moving in?
- Usually around then, but the relationship can legally begin earlier if you were already living as a couple across two homes. The start date is a fact courts can argue about, or a fact you fix in an agreement.
Sources
All information published on prenup.nz, including this guide, is general information only and is not to be construed as legal advice. We strongly recommend seeking independent legal advice about your own situation. A contracting out agreement only binds you once each partner has taken independent legal advice and a lawyer has witnessed and certified each signature, as section 21F of the Property (Relationships) Act 1976 requires.