The Last-Minute Invoice Dispute: Why The Late Payment Bill Wants To Stop It
Anyone who's spent time chasing an overdue invoice in construction will recognise this pattern: payment is due, the deadline arrives, and suddenly a dispute appears - over the quality of the work, the scope, or a technicality in the paperwork. Not always because there's a genuine problem, but because raising a dispute is one of the easiest ways to buy more time.
The government's new Late Payment Bill has taken direct aim at this tactic. Alongside the headline measures - the 60-day payment cap, mandatory interest, and the ban on withholding retentions - the Bill also introduces a firm deadline for disputing invoices, specifically designed to stop tactical disputes being used to delay payment.
It's a smaller detail than the retention ban or the payment cap, but for anyone who's been on the receiving end of a conveniently-timed dispute, it may end up being one of the most practically useful parts of the reform.
Why Tactical Disputes Are So Common In Construction
Construction payment chains are long and layered - client, main contractor, subcontractor, supplier - and disputes are a genuine and necessary part of that system. Work quality, scope changes, and contractual interpretation are all legitimate grounds to query an invoice.
The problem is that the same mechanism designed for genuine disagreements can just as easily be used to stall. Without a clear deadline for raising a dispute, there's little to stop a business from sitting on an invoice until the day it's due, then raising a dispute at the last possible moment - restarting the clock and pushing payment back further, often with no real intention of resolving the underlying issue quickly.
For the business waiting to be paid, this is one of the most frustrating positions to be in. The debt isn't in question, the work has been completed, but the dispute itself becomes the delay.
What The Bill Actually Changes
By introducing a firm deadline for disputing invoices, the Bill closes off the ability to raise a dispute indefinitely, or at a moment designed purely to delay rather than resolve. In practice, this should mean:
Disputes need to be raised within a defined window, rather than at any point up to (or after) the payment due date. A genuine dispute can still be raised and dealt with fairly - this isn't about removing the right to dispute an invoice, only about closing the loophole of using it as a delay tactic. Businesses relying on last-minute disputes as an informal extension of their payment terms will need a different approach once this becomes law.
Combined with mandatory statutory interest and stronger enforcement powers for the Small Business Commissioner, the overall direction is clear: the government wants payment disputes to be about resolving genuine disagreements, not managing cash flow.
What This Means While The Bill Is Still In Parliament
As with the wider reforms, this isn't law yet - the Bill is still progressing through Parliament. That means, for now, tactical last-minute disputes remain a live risk for anyone chasing payment in construction.
A few practical steps can help reduce exposure to this in the meantime:
Set out clear terms in your contracts around when and how a dispute can be raised, rather than leaving it open-ended. Keep detailed records throughout a project - photos, sign-offs, correspondence - so that if a dispute is raised late, you're in a strong position to respond quickly rather than starting from scratch. And where a dispute does appear suspiciously close to a payment deadline, don't assume it has to bring the process to a halt; there are usually still options available to keep recovery moving.
Don't Wait For The Law To Catch Up
Legislation can close loopholes over time, but it won't resolve a dispute that's sitting on your desk today. If a client has raised a late dispute that feels more like a delay tactic than a genuine concern, specialist construction debt recovery can help assess the situation and get the process moving again — without waiting for a new law to do it for you.
FAQs
Can a client dispute an invoice after the payment due date has passed? Currently, there's no firm legal deadline preventing this, which is exactly why last-minute disputes have become such a common delay tactic in construction. The Late Payment Bill aims to change this by introducing a set window for raising disputes, though this isn't law yet.
What should I do if a client raises a dispute right before payment is due? Don't assume the dispute automatically pauses the process. Review your contract terms, gather any supporting documentation (sign-offs, correspondence, photos), and consider getting specialist advice early - a suspiciously timed dispute doesn't necessarily need to bring recovery to a halt.
Is every late-raised dispute a delay tactic? No - genuine disputes over quality, scope, or contractual terms can arise at any stage of a project, including close to a payment deadline. The issue the Bill addresses isn't legitimate disputes themselves, but the ability to use the dispute process purely to buy time.
When will the firm dispute deadline become law? The Late Payment Bill is still progressing through Parliament, so there's no confirmed date yet for when this - or the other reforms - will come into force. It's worth monitoring developments, but businesses shouldn't wait for the law to change before addressing current disputes.
What can I do now, before the Bill becomes law? Set clear terms in your contracts around when and how disputes can be raised, keep thorough documentation throughout a project, and act quickly if a dispute appears close to a payment deadline rather than assuming it has to delay recovery indefinitely.
