Index of inflation
Schedule 1 of the CIL Regulations requires collecting authorities to apply an index of inflation. There are two index values the Council must apply, the first is the index value when the Charging Schedule was adopted (Ic) and the second is the index value on the date that planning permission was granted (Ip).
The Index figure for a given year is the figure published by the Building Cost Information Service (BCIS) of the Royal Institution of Chartered Surveyors on the 1 November in the preceding year.
From the 1 January 2021 local authorities in areas which charge the levy should use the figure for 1 November for the preceding calendar year (2020).
| Year | Index | Published |
|---|---|---|
| 2020 | 334 | 28 October 2019 |
| 2021 | 333 | 26 October 2020 |
| 2022 | 332 | 25 October 2021 |
| 2023 | 355 | 24 October 2022 |
| 2024 | 381 | 23 October 2023 |
| 2025 | 391 | 28 October 2024 |
As per the BCIS website
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