How to Write a Payment Claim That Actually Triggers the Construction Contracts Act (NZ)

sp8002
May 31
4 min read

A payment claim only has legal teeth if it is compliant. Get the five requirements right and the payer must respond with a payment schedule or pay the claimed amount. Get them wrong and you have sent an invoice that the Act ignores.

By Steve Parker · Trueworks · NZ construction contract review · 6 min

What you'll learn

Why a payment claim is different from an invoice
The five requirements that make it compliant
The clock it starts — and the defects that kill it

Quick answer: A payment claim under the Construction Contracts Act 2002 only triggers the payer's obligations if it is compliant: in writing; identifying the construction work and the period it relates to; stating the claimed amount and the due date for payment; indicating the manner in which it was calculated; and stating that it is made under the Construction Contracts Act 2002. Get those five right and the payer must respond with a payment schedule or, in most cases, pay the claimed amount. Get them wrong and you have sent an invoice with no legal teeth.

The Construction Contracts Act gives a subcontractor a powerful right: serve a compliant payment claim, and the payer is on a clock that has real consequences if they miss it. But the right only switches on if the claim is compliant. Many subbies send an ordinary invoice, miss one of the requirements, and lose the protection without realising it.

A payment claim is not just an invoice

An invoice asks for payment. A payment claim invokes a statutory regime — it puts the payer under a legal obligation to either pay or respond with a payment schedule, and it starts the timeline that can make the claimed amount a debt due. The difference is in whether the document meets the Act's requirements.

The five requirements

A compliant payment claim must:

Be in writing.
Identify the construction work and the period it relates to.
State the claimed amount and the due date for payment.
Indicate the manner in which it was calculated — the build-up, including any variations as itemised lines.

State that it is made under the Construction Contracts Act 2002.

That last line is the one most often missing, and its absence can be fatal to the claim's status. Put it on the document explicitly.

Include your variations as itemised lines

A variation you want paid has to be in the payment claim, calculated and substantiated — not mentioned in a side email. Itemise each variation with its scope reference and build-up, so the payer cannot treat it as vague. For confirming the variation was authorised in the first place, see confirming verbal variations in writing

The clock it starts

Once you serve a compliant claim, the payer must respond with a payment schedule if they intend to pay less. If they do not provide a valid schedule within the contract's timeframe — or 20 working days

by default — the claimed amount becomes a debt due and recoverable, and you may gain the right to suspend work on notice. That is the engine described in our guide to unpaid variations.

Send Trueworks your subcontract and the disputed item. You receive a written, code-cited assessment of your entitlement under the Construction Contracts Act — the clean paperwork an adjudicator rewards. NDA available; files NZ-hosted. → Email steve@trueworks.co.nz
or start at trueworks.co.nz

Variation gone unpaid, or a back-charge you dispute?

Common fatal defects

No statement that it is made under the Construction Contracts Act 2002.
No due date for payment.
No indication of how the amount was calculated — a bare total.
Wrong period, or a period overlapping a previous claim without explanation.

Sent to the wrong entity — name the correct contracting party.

A two-minute check against the five requirements before you send is the cheapest insurance in the trade.

FAQ — Payment claims under the Construction Contracts Act

What is the difference between an invoice and a payment claim? An invoice requests payment; a compliant payment claim invokes the Construction Contracts Act, putting the payer on a clock to pay or to issue a payment schedule. Only a compliant claim triggers those obligations.

Do I have to write "Construction Contracts Act 2002" on it? The claim must state that it is made under the Construction Contracts Act 2002. Including that statement explicitly is the safest course; its absence is a common reason claims fail to bite.

How do I include a variation in a payment claim? Itemise it with its scope reference and a calculated build-up, within the claim itself, so it is part of the claimed amount rather than a side note.

What happens if the payer ignores a compliant claim? If no valid payment schedule arrives within the contract timeframe or 20 working days by default, the claimed amount becomes a debt due and recoverable, and you may be able to suspend work on notice.

Can I claim for work if there is no written contract? Yes. The Construction Contracts Act applies to construction contracts whether written or oral, though a written record of scope and variations makes the claim far easier to sustain.

How Trueworks helps

Trueworks checks a payment claim against the five statutory requirements before you send it, and confirms your variations are itemised and substantiated inside it — so the claim triggers the Act rather than sitting as an ordinary invoice. You get the check in writing, with the references.

About Trueworks

Trueworks is built by Steve Parker — 20 years on the analytical side of NZ construction: variation reviews, contract advisory, and AI-augmented document analysis. It is the same defensible, code-cited read a quantity surveyor would give a variation, made available to the homeowners and trades on the receiving end of one. I answer every email personally during pilot phase.

steve@trueworks.co.nz · trueworks.co.nz