What a payment schedule is
Once you serve a payment claim, the respondent’s move is a payment schedule — a written reply that must identify the payment claim it responds to and indicate the amount the respondent proposes to pay, the scheduled amount s 14, Building and Construction Industry Security of Payment Act 1999 (NSW) (as of 8 July 2026). If the scheduled amount is less than you claimed, the schedule must say why: it has to state the respondent’s reasons for the difference, and, where the reason is that money is being withheld, why s 14, Building and Construction Industry Security of Payment Act 1999 (NSW) (as of 8 July 2026). That reasons requirement is the claimant’s friend — it pins the respondent down, as we will see.
The respondent’s deadline
The respondent must serve the schedule within the time the contract allows or the period the Act allows after the claim was served — whichever is shorter s 14, Building and Construction Industry Security of Payment Act 1999 (NSW) (as of 8 July 2026). This is a hard deadline, and it is the hinge the rest of your rights turn on. The date runs from when you served the claim, which is why proof of service (in the payment-claim guide) matters so much.
On the day-counts: the exact schedule and payment periods are set by the current Act and can be shortened by your contract. Any date that will drive a real step on a live claim must be confirmed against the Act text with a construction lawyer. TODO: counsel-verify all day-counts and notice requirements before go-live.
If the schedule is for less than you claimed
A short payment schedule is not the end of the road — it is an invitation to adjudicate. Your options:
- Accept the scheduled amount — if it is close enough and the fight is not worth it, take it. The respondent must still pay the scheduled amount by the due date s 11, Building and Construction Industry Security of Payment Act 1999 (NSW) (as of 8 July 2026); if they do not, that unpaid scheduled amount is itself recoverable.
- Apply for adjudication — put the dispute to an independent adjudicator, who decides how much is actually payable s 17, Building and Construction Industry Security of Payment Act 1999 (NSW) (as of 8 July 2026). There is a statutory window to apply, so do not sit on it.
The claimant’s edge here is the reasons lock: a respondent cannot rely at adjudication on reasons for withholding payment that were not in the payment schedule s 20, Building and Construction Industry Security of Payment Act 1999 (NSW) (as of 8 July 2026). A schedule that is vague, or that leaves out the respondent’s real argument, hands you the advantage — they cannot improve on it later.
If you receive no payment schedule at all
Silence is the respondent’s worst move. If they serve no schedule within the time and do not pay the claim, they become liable to pay the full claimed amount on the due date s 14, Building and Construction Industry Security of Payment Act 1999 (NSW) (as of 8 July 2026). From there you have two routes:
- Recover the claimed amount as a debt in court s 15, Building and Construction Industry Security of Payment Act 1999 (NSW) (as of 8 July 2026). In that recovery, the respondent generally cannot bring a cross-claim or raise a defence arising under the construction contract s 15, Building and Construction Industry Security of Payment Act 1999 (NSW) (as of 8 July 2026) — a powerful shortcut.
- Apply for adjudication s 17, Building and Construction Industry Security of Payment Act 1999 (NSW) (as of 8 July 2026). Where no schedule was served, the Act generally requires you first to notify the respondent of your intention to adjudicate and give them a last, short opportunity to provide a schedule s 17, Building and Construction Industry Security of Payment Act 1999 (NSW) (as of 8 July 2026). Only if they still do not can you proceed.
Both routes have their own notice and timing requirements — and the deadlines are short — so confirm the exact steps before you rely on them. The Security of Payment hub links the deadline calculator and the adjudication guide as they ship.
What to do the moment a deadline passes
The instant the schedule deadline passes with nothing received, your position changes — so capture it. Note the date the claim was served, the date the schedule was due, and the date payment falls due. Keep your served claim and proof of service with those dates. Whether you head to court for the debt or to adjudication, that dated trail is what proves the respondent missed its window and you did not miss yours.