Who Keeps the House in a New Zealand Divorce?

The Family Home Is Always Relationship Property

Under the Property (Relationships) Act 1976, the home where you and your partner principally lived together is always relationship property. It doesn't matter who bought it, whose name is on the title, who paid the mortgage, or whether one partner owned it years before the relationship began.

This is the most consequential rule in New Zealand property division, and it catches people off guard. A house purchased a decade before a relationship becomes relationship property the moment both partners move in and make it their principal home. Both partners are entitled to half its net value.

The Three Options for the Family Home

When a relationship ends, the family home is dealt with in one of three ways:

Option 1 — One partner buys out the other. The most common outcome. One partner keeps the house and pays the other partner 50% of the net equity.

Option 2 — Sell the property and split the proceeds. Both partners walk away with cash. This is simplest when neither partner can afford to refinance the mortgage alone, or when both want a clean break.

Option 3 — Deferred sale. Sometimes partners agree to delay the sale — usually until the youngest child finishes school or reaches a certain age. One partner stays in the home while the other retains their equity share, which is paid out when the house eventually sells. This option requires careful drafting because it leaves both partners financially tied to each other for years.

How a Buyout Works

The buyout calculation is straightforward:

1. Get a registered valuation. Both partners should agree on a current independent valuation from a licensed property valuer. Council CVs and real estate agent appraisals are generally insufficient for refinancing purposes — banks require a registered valuation.

2. Calculate net equity. Subtract the outstanding mortgage balance (and any other registered charges) from the valuation figure.

3. Pay half. The staying partner pays the departing partner 50% of the net equity.

If the house is valued at $850,000 with a $350,000 mortgage, the net equity is $500,000. The buyout payment is $250,000.

The Refinancing Hurdle

Keeping the house requires more than agreeing on a buyout number. The staying partner must refinance the existing joint mortgage into their sole name. This means the bank must be satisfied that the staying partner can service the full mortgage plus the buyout payment on their income alone.

Banks assess this based on post-separation income, existing debts, child support obligations, and living expenses. Many partners discover that the combined household income that originally qualified for the mortgage doesn't stretch far enough when split between two households.

If the staying partner can't qualify for refinancing, the buyout can't proceed and the house typically needs to be sold.

The Joint and Several Liability Trap

Until the mortgage is formally refinanced and the departing partner is released from the loan, both partners remain fully liable to the bank for the entire mortgage balance. This is true regardless of what any private agreement says about who will make the payments.

If the staying partner stops paying, the bank can pursue the departing partner for the full debt and register a default against their credit. The only protection is formal release from the mortgage deed, which happens when refinancing completes and the new sole title is registered on Landonline.

Never sign a separation agreement that simply says "Partner A will take over the mortgage" without a clear timeline and mechanism for formal refinancing and release.

Court Orders When You Can't Agree

If partners can't agree on who stays or whether to sell, either party can apply to the Family Court for protective orders:

• Occupation order (Section 27 PRA) — grants one partner exclusive right to live in the home, legally excluding the other. The court gives significant weight to the housing needs of any dependent children.
• Tenancy order (Section 28 PRA) — if the family home is rented, the court can transfer the tenancy to one partner and discharge the other from rent obligations.
• Furniture orders (Sections 28B and 28C PRA) — Section 28B can prevent one partner from stripping the home of essential items, and Section 28C can allow furniture to be released to equip a departing partner's new household.

These are interim measures while the substantive property division is sorted out. They don't determine the final ownership — they determine who lives where while negotiations or court proceedings continue.

Preparing for the Home Decision

The family home is usually the largest single asset in a New Zealand separation, and getting the numbers right matters more here than anywhere else. Before negotiating, you need a clear picture of the home's value, the mortgage balance, what refinancing would look like on one income, and how a buyout payment would be funded (savings, KiwiSaver offset, or other assets).

The New Zealand Financial Split & Asset Division Guide includes a family home buyout worksheet that runs through the full calculation — valuation, equity, refinancing capacity, and offset options — so you can evaluate whether keeping the house is financially realistic before committing to a position in negotiations.

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