Pay-Less Notice

A pay-less notice is a formal written notice that the paying party - typically a main contractor or employer - serves on a subcontractor or payee to state they intend to pay less than the notified sum. It is a statutory instrument under the Housing Grants, Construction and Regeneration Act 1996 (the Construction Act), as amended by the Local Democracy, Economic Development and Construction Act 2009. To be valid, the notice must specify the sum the paying party considers due and the basis of that calculation, and it must be served before the contractual deadline.

Why Pay-Less Notices Matter

The Construction Act introduced the pay-less notice regime to make payment obligations across the supply chain enforceable and transparent. Before the Act, main contractors could withhold payment from subcontractors with minimal explanation and limited recourse. That dynamic changed significantly.

If the paying party fails to serve a valid pay-less notice in time, they lose the right to pay less than the notified sum - even where they dispute the valuation. The full notified sum becomes due and payable by the final date for payment. Adjudicators and courts enforce this strictly. A subcontractor can refer the failure to pay to adjudication and expect a swift decision in their favour on the procedural point alone. This is sometimes called a "smash and grab" adjudication: the underlying valuation dispute may continue separately, but the obligation to pay the notified sum first is enforceable immediately.

Timing and Contents of a Valid Notice

The notice must be served before the prescribed period before the final date for payment. Most contracts specify a period - typically five days. If the contract does not specify one, the Scheme for Construction Contracts applies a default of five days before the final date for payment. Missing that deadline by any margin invalidates the notice.

To be valid, the notice must contain two things: the sum the paying party considers to be due (which may be zero), and the basis on which that sum has been calculated. Vague notices - stating only that the application is overvalued without showing the calculation - are defective and unenforceable. Any deductions for retention, contra-charges, liquidated damages, or set-off must each be identified and quantified. The commercial team needs its valuation complete and documented before the notice deadline, not after.

What Happens After a Pay-Less Notice Is Served

Serving the notice does not end the process. The subcontractor has the right to check whether the notice is valid, assess each deduction on its merits, and challenge unjustified amounts through adjudication. Construction adjudication typically concludes within 28 days, giving subcontractors a fast route to a binding decision without stopping work.

For main contractors and employers, issuing the notice correctly protects the right to make legitimate deductions and maintain control of subcontract costs. For subcontractors, understanding the regime means knowing when a notice is defective - and what rights that creates. When job cost data, subcontractor applications, and payment records sit in one system, producing the calculations needed for a valid notice becomes a structured task rather than a scramble under deadline pressure.