Payment Withholding Requests Explained

Most people know the Act through payment claims and adjudication. Fewer know about the payment withholding request, a separate mechanism that can add real pressure when a contractor directly above you isn't paying and there's a further party above them who owes that contractor money.

What a payment withholding request does

Where a subcontractor holds an adjudication certificate that has been filed as a judgment debt, or an unpaid adjudication determination, against their contractor, they can serve a payment withholding request in writing — accompanied by a copy of the certificate or determination — on the party above that contractor in the chain, for example the principal above a head contractor. That party is then required to withhold an amount up to the judgment debt or adjudicated amount from money it would otherwise pay to the contractor.

Why this is a genuinely useful tool

An adjudication determination or certificate is only as good as the paying party's ability, or willingness, to pay. A payment withholding request adds pressure by involving the party at the next level up the contracting chain, someone who usually has both the funds and a strong incentive to see the dispute resolved rather than hold money in limbo.

When you can actually use one

This isn't available at the first sign of non-payment. It generally requires an unpaid adjudication certificate or determination already in hand, meaning the claimant has already been through the adjudication process and still hasn't been paid.

Once served, the party above must keep withholding until the earlier of the parties reaching a settlement, the determination being satisfied, or a court order releasing the funds — it isn't indefinite. If they fail to comply, they become jointly and severally liable with the contractor for the amount that should have been withheld.

How this applies across NSW

Sydney metro

On layered head-contractor and subcontractor structures common on larger developments around Macquarie Park and Liverpool, this mechanism is particularly useful where a head contractor is in genuine financial difficulty but the principal above them isn't. For our broader construction law services in these areas, see Archer Lawyers' Macquarie Park and Liverpool pages.

Regional NSW

On regional government and council-funded projects around Dubbo and Tamworth, a payment withholding request against a well-funded principal can be considerably more effective than continuing to chase an insolvent or under-resourced head contractor directly. For our broader construction law services in these areas, see Archer Lawyers' Dubbo and Tamworth pages.

Frequently asked questions

Can I use a payment withholding request without going through adjudication first?

No. It generally requires an existing unpaid adjudication certificate or determination as the foundation.

Does the party above my contractor have to comply?

Yes. Once validly served, they must withhold an amount up to the judgment debt or adjudicated amount, and if they fail to comply they become jointly and severally liable with the contractor for that amount.

What if the party above my contractor doesn't actually owe them any money?

Then there's nothing to withhold, which is why this tool works best where you have some visibility into the payment chain above your direct contractor.

Is this the same as suing the principal directly?

No. It's a statutory mechanism that redirects funds within the existing contractual chain, not a new cause of action against the principal.

Who is this most useful for?

Subcontractors and lower-tier trades who have a determination in hand but are dealing with a contractor who genuinely can't or won't pay.

If you're holding an unpaid determination and want to know whether this tool is available to you, contact our team for a free assessment.