Why Late or Non-Compliant Claims Cost Subcontractors Money
A payment claim that misses its deadline by a single day, or a variation submitted in the wrong format, doesn’t just create paperwork. It can push real money out of this month’s payment run and into next month’s — or out of the job entirely. For a subcontractor running on tight cash flow, that’s not a technicality. That’s income you’ve already earned, sitting somewhere you can’t touch it.
Most subcontractors operate under contracts based on the standard SA-2017 Subcontract Agreement (and the Construction Contracts Act 2002). These documents set clear, strict rules around when and how payment claims and variation claims must be submitted — and the rules aren’t forgiving of a day’s delay or a missing detail.
Here’s what those rules actually require, and what it costs when they’re not followed.
1. Strict deadlines exist for a reason
Under SA-2017 Specific Conditions (clause 12.1.1), payment claims are commonly due a set number of working days before the end of the month for work to the end of that month. Variation claims often have an earlier deadline.
If your claim arrives even one day after the due date, it can technically be treated as having been received late and only submitted for the next month’s claim cycle. That can push your payment back an entire month and seriously harm cash flow.
2. Progress claims and variation claims are not the same thing
Many contracts require variation claims to be submitted earlier than the main progress claim. Holding variations back and trying to include them with the monthly progress claim is one of the most common reasons for having your variations declined for payment in that month.
All variations submitted should have:
- A written instruction requesting the work
- Notification that the work is considered a variation and will incur additional costs
- The variation claim itself with the additional costs and supporting information to substantiate it
Only variations that have been properly notified and approved in writing should be included. Claiming unapproved or poorly substantiated variations usually results in them being scheduled at nil.
3. Format and supporting information matter
A payment claim must comply with the Construction Contracts Act 2002. Most contracts also require the claim to follow a specific format (often based on the sample forms in the SA-2017 Appendices) and to include a detailed breakdown against the schedule of prices plus clear references for any approved variations.
Claims that are incomplete, poorly structured, or missing required information are routinely returned as non-compliant. You then have to re-work and re-submit them, which costs time and delays cash flow.
4. Buyer-created invoicing is the norm
Under standard SA-2017 wording (clause 12.1.4), subcontractors must not issue tax invoices for the subcontract works. The main contractor issues a buyer-created tax invoice with each payment. Sending your own invoice alongside the claim creates unnecessary reconciliation problems for both parties.
5. Off-site materials have their own rules
If the contract allows payment for materials stored off-site, there are almost always earlier notice and inspection requirements. Missing the notice window usually means those materials cannot be claimed that month.
The real cost of getting it wrong
- A non-compliant claim is returned → more administration and delay.
- A late claim can roll into the next month → cash-flow hit.
- Missing variation deadlines or failing to properly notify and substantiate variations can mean the work is never paid as a variation.
- Repeated issues make future claims harder and damage the working relationship.
These rules exist because main contractors are under pressure from their own head contracts and quantity surveyors. The subcontractors who get paid more reliably treat claim requirements as a system problem, not a paperwork problem. They keep site instructions, dayworks, photos, and correspondence organised against each job from day one, so that when the claim deadline arrives the evidence is already in one place and the claim can be assembled cleanly and on time.
That is exactly the problem Subbie HQ was built to solve.