SME support
30-Day Payment Rule
Quick answer
The 30-day payment rule requires public sector payment within 30 days of a valid invoice. Late payment attracts statutory interest.
Last updated: 18 May 2026
Subcontractors
Flow-down terms must match. Main contractors delaying SMEs risk reputational and legal exposure.
Common questions
What is Thirty Day Payment Rule?
The 30-day payment rule requires public sector bodies to pay suppliers within 30 days of valid invoice, with statutory interest on late payment, supporting SME cash flow.
Is this still current after February 2025?
Yes under the Procurement Act 2023.