Separation and Divorce in New Zealand 2026 — Financial Checklist

Separation is one of the most financially complex events a person can face. At a time when you’re dealing with enormous emotional stress, there are urgent financial tasks that cannot wait — some with serious consequences if delayed.

This guide covers the key financial steps when a relationship ends in New Zealand. It is not legal advice — every separation is different, and you should get independent legal advice early, even if your separation seems amicable.

The Property Relationships Act 1976 — The Legal Framework

The Property Relationships Act 1976 (PRA) governs how property is divided when a marriage, civil union, or de facto relationship of 3+ years ends.

The 3-year rule

The PRA applies to:

• All married and civil union couples (from day one of marriage)
• De facto couples who have been together for 3 or more years
• De facto couples together for less than 3 years may still have some claims under the Act if there is a child of the relationship or if one partner has made significant contributions

Relationship property vs separate property

The family home is always relationship property — regardless of whose name is on the title, who paid the deposit, or who has been paying the mortgage.

“Commingling” separate property

If you received an inheritance or brought pre-relationship assets into the relationship and those funds were mixed with joint accounts or used to pay the joint mortgage, they may have become relationship property. This is a complex area — get legal advice.

Urgent Financial Tasks — Do These First

These tasks have no fixed deadline, but should be done as soon as possible after separation. Every week of delay is a week during which your ex remains your financial beneficiary by default.

1. Update your KiwiSaver nominated beneficiary

Your KiwiSaver balance does not pass through your will on death — it goes to your nominated beneficiary. Log into your KiwiSaver provider’s portal and change this immediately. Your ex-partner remains your nominee until you change it.

2. Update or rewrite your will

If you die before updating your will, your estate passes to your ex as specified. This is one of the most common and costly oversights in separation. Your will does not update automatically when you separate.

3. Remove your ex as a signatory or authority

• Joint bank accounts: Both parties have full access to joint accounts. Your ex can withdraw all funds. Contact your bank to discuss options — most banks require both signatures to close a joint account, but you may be able to remove authority or restrict access (seek legal advice on the right approach)
• Joint credit cards: Both parties are fully liable for all joint debt
• Power of attorney: If you granted your ex Enduring Power of Attorney, revoke it

4. Check insurance policies

• Life insurance: Remove your ex as beneficiary on individual policies
• Health insurance: If you’re on a joint policy, get your own policy sorted before the joint one lapses
• Home insurance: The home still needs insurance regardless of who is living there during separation — confirm this is active

KiwiSaver in Separation

KiwiSaver balances accumulated during the relationship are relationship property under the PRA and can be split.

The process

• The portion of your KiwiSaver balance attributable to contributions made during the relationship is relationship property
• The portion attributable to contributions before the relationship is separate property
• KiwiSaver providers calculate this split using contribution dates and returns

The process:

1. Both parties agree (or Court orders) on the split
2. A signed separation agreement or Court order is provided to both KiwiSaver providers
3. The transfer is executed — IRD and the providers handle the mechanics
4. Transferred funds go into the recipient’s KiwiSaver account and remain locked in (same rules apply)

KiwiSaver funds cannot be cashed out via separation

Even if your ex receives a share of your KiwiSaver, they cannot cash it out immediately. Transferred funds remain subject to the same KiwiSaver rules (locked in until 65 or qualifying first home withdrawal).

Joint Debts — A Critical Issue

Joint debts (mortgages, credit cards, personal loans in both names) remain the liability of both parties, regardless of any private agreement between you.

If you agree in your separation that your ex will pay the joint mortgage and they stop paying — the bank will pursue you for the arrears. This is a common and devastating outcome.

Your options:

• Sell the jointly owned property and divide the proceeds
• One party buys the other out and refinances the mortgage in their name only
• Get the bank to release one party from the joint mortgage (requires bank approval and the remaining borrower meeting lending criteria solo)
• Reach a formal legally binding agreement — but remember, the bank is not bound by your private separation agreement

Get legal advice on how joint debt is handled in your specific circumstances before signing anything.

The Separation Process

Agreement or Court?

Most couples reach an agreement without going to Court. A separation agreement sets out how property, debt, and (if applicable) child custody and support is divided.

Requirements for a valid separation agreement under the PRA:

• Must be in writing
• Both parties must have independent legal advice before signing
• Both parties’ lawyers must witness the signing

The cost of getting a separation agreement is typically $2,000–$10,000 per party depending on the complexity and whether it’s contested.

Family Court

If you cannot agree, either party can apply to the Family Court to have property divided. This is slower, more expensive, and more stressful than reaching agreement. The Court applies the PRA principles — ultimately, contested or not, most relationship property is still split 50/50.

Child Support

If you have children, child support is administered by IRD (unless you have a private agreement).

Key points:

• Child support is calculated by IRD based on the income of both parents and the care arrangement (how many nights each parent has the children)
• The formula has several components — use the IRD child support estimator at ird.govt.nz
• A private arrangement (agreed between both parties in writing) can replace the IRD formula, but both parties must agree
• If payments aren’t made, IRD has strong enforcement powers (wage garnishment, tax refund offset, passport restrictions)

Apply: You can apply for child support via myIR or by contacting IRD.

Closing and Separating Joint Accounts

Joint bank accounts

• Both parties have equal, full access
• Neither party can unilaterally close a joint account — both signatures are required at most NZ banks
• You can ask your bank to freeze or restrict the account (requires legal advice on appropriate action)
• Do not withdraw all funds unilaterally — this may be considered dissipation of relationship property and can prejudice your legal position

Joint credit cards

• Both parties remain fully liable for all joint debt
• Request your bank convert the account or close it — this may require repayment of the balance first
• Monitor the account for unauthorised charges while it remains open

Financial Checklist — Separation

Immediately (week 1)

• Update KiwiSaver nominated beneficiary — urgent
• Update or rewrite your will — urgent
• Secure access to your own bank account (open a personal account if you don’t have one)
• Take stock of all assets and debts (joint and individual)
• Photograph and document high-value chattels (furniture, art, tools, vehicles)
• Revoke Enduring Power of Attorney if granted to your ex

Within 1 month

• Get independent legal advice on your property rights
• Contact your bank about joint accounts and joint debt
• Update life insurance beneficiary
• Sort health insurance (individual cover if you were on a joint policy)
• Contact IRD about child support if applicable

Within 3 months

• Complete a formal separation agreement (both parties with independent lawyers)
• Resolve joint property (sell, buy out, or agree on ongoing arrangement)
• Resolve joint debts (refinance, pay off, or formal agreement)
• Update records: electoral roll, IRD address, bank address

Ongoing

• Apply for Working for Families if now a single parent
• Apply for Sole Parent Support via WINZ if eligible
• Review and update your budget as a single-income household

Next Steps

1. Change your KiwiSaver beneficiary today — this takes 5 minutes and is the most commonly missed task
2. Update your will — contact a lawyer or use Public Trust if you need a quick interim solution
3. Get legal advice early — even one hour with a family lawyer clarifies your rights and prevents costly mistakes later
4. Contact your bank about joint accounts before either party can drain them — most banks have processes to flag the account during separation

See also: Life Events hub · Getting Married finances · Property Relationships Act explained · KiwiSaver guides