Section 21 Agreement vs Consent Order in New Zealand

Two Ways to Make a Property Division Legally Binding

New Zealand gives separating couples two mechanisms for formalising their property settlement: a Section 21 contracting-out agreement (private, certified by lawyers) and a consent order through the Family Court. Both produce a legally enforceable result, but they work differently, cost differently, and suit different situations.

Understanding which one fits your circumstances before you start the process saves time and money.

Section 21 Agreement

A Section 21 agreement under the Property (Relationships) Act 1976 is a private contract between the two partners. It can override the PRA's equal-sharing default — dividing property in any proportion the parties agree to, or protecting specific assets as separate property. Any agreement about domestic maintenance should be considered separately under the Family Proceedings Act 1980.

The critical requirement: both parties must receive independent legal advice from separate lawyers, and those lawyers must witness and certify the agreement. Without the required formalities, the agreement is generally void under Section 21F, subject to the court's limited power under Section 21H to give effect to a non-compliant agreement where no party was materially prejudiced.

Strengths: Flexible terms (any division the parties agree to), no court involvement, no filing fee, faster to execute, private (not a public court record).

Limitations: Cannot directly order a KiwiSaver provider to transfer funds between accounts (that requires a court order). Can be challenged later if one party did not genuinely understand the terms or was under undue pressure.

Typical cost: $1,500 to $5,000 per party for lawyer drafting and certification in a straightforward case.

Consent Order

A consent order is a court order issued by the Family Court with the agreement of both parties. The couple files a joint application setting out the agreed terms, and a judge reviews and seals the order. The result has the force of a court order — enforceable through the court system if one party does not comply.

Strengths: Enforceable as a court order (stronger enforcement mechanisms than a private contract), can direct KiwiSaver providers to transfer funds between accounts, harder to challenge after the event because a judge has reviewed the terms.

Limitations: Requires a court filing and a filing fee (approximately $816 for a property order application), takes longer to process through the court registry, becomes a court record.

Typical cost: Similar legal fees to a Section 21 agreement, plus the court filing fee.

When to Choose Each

A private agreement under Section 21A is the standard choice when the couple has reached agreement, the division is relatively straightforward, and KiwiSaver is being handled through asset offsetting rather than a direct account transfer. Most amicable separations use this route.

A consent order makes more sense when KiwiSaver needs to be directly transferred between accounts (the provider will not act without a court order), when one party has concerns about enforceability and wants the weight of a court order behind the terms, or when the settlement includes ongoing obligations (like staged payments) that benefit from court-backed enforcement.

Some couples use both: a Section 21A agreement for the bulk of the property division, plus a consent order specifically for the KiwiSaver transfer.

Can a Section 21 Agreement Be Overturned?

A properly executed Section 21 agreement is difficult to challenge, but not impossible. The Family Court can set aside a certified agreement if it would cause serious injustice, if the agreement was obtained by fraud or undue influence, or if there was a failure of disclosure that materially affected the terms.

A consent order faces a higher bar for challenge because a judge reviewed it before sealing. Any attempt to challenge or vary a consent order depends on the order and the applicable legal grounds, so get legal advice.

The NZ Financial Split Navigator includes a Settlement Proposal Template that helps structure the terms of either a Section 21 agreement or a consent order — covering asset division, KiwiSaver allocation, and debt assignment — so you can present your lawyer with a clear proposal rather than starting from a blank page.

See more New Zealand guides →