This tool provides a comprehensive, detailed and easy to use method of measuring cost movement for building and civil engineering. Widely used in the construction and infrastructure sector to help fairly allocate risk between the client and sub-contractors
Published: 12/12/2024
The price adjustment formulae is a method of calculating the increase, or decrease, in contractors’ costs over any period using the BCIS Price Adjustment Formulae Indices (PAFI) which are published as part of BCIS CapX.
The formulae and the indices are widely used in larger building civil engineering contracts. BCIS publish indices for building trades, civil engineering, specialist engineering and highways.
The publication dates of the monthly indices have contractual significance and are published on BCIS CapX.
The PAFI will, unless otherwise stated, be published monthly at 12 noon on the Tuesday following the release of the Office for National Statistics (ONS) Producer Price Indices (PPIs), which will usually be the Wednesday following the second Friday of the month.
The PAFI publication dates for 2025 are as follows:
- 21 January 2025
- 25 February 2025
- 31 March 2025 – Monday
- 24 April 2025 – Thursday
- 28 May 2025 – Wednesday
- 24 June 2025
- 22 July 2025
- 27 August 2025 – Wednesday
- 23 September 2025
- 28 October 2025
- 25 November 2025
- 23 December 2025
Publication outside of this schedule will be preannounced.
Following announcements made in the 2024 Autumn Budget, the BCIS data team outlined how changes to employer National Insurance contributions and, where applicable, the National Living Wage, will be incorporated into Price Adjustment Formulae Indices in 2025.
