Guidance

Impact assessment and options assessment calculator

Help for policy officials to calculate figures for impact assessments (IAs) and options assessments (OAs).

• From: Department for Business and Trade
• Published: 13 May 2013
• Last updated: 6 February 2025 — See all updates

Documents

Impact assessment calculator (reforms 2023).ods

ODS, 352 KB

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Impact assessment calculator user guide (reforms 2023)

ODT, 272 KB

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This file may not be suitable for users of assistive technology.

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If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email digital@businessandtrade.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Details

The calculator automatically generates the main figures needed by policy officials for their IA and OA, using the profile of costs and benefits for each option.

Published 13 May 2013
Last updated 6 February 2025 + show all updates

1. 6 February 2025

   Impact assessment calculator (reforms 2023) and Impact assessment calculator user guide (reforms 2023) updated. Impact assessment calculator and Impact assessment calculator guide deleted.

2. 16 April 2024

   Attachments 'Impact assessment calculator (reforms 2023) and 'Impact assessment calculator user guide (reforms 2023)' to reflect 100 year extension.

3. 31 October 2023

   Updated GDP deflators to those published on 30 Sep 2023.

4. 19 September 2023

   Added Impact assessment calculator (2023 reforms). Added Impact assessment calculator guide (2023 reforms).

5. 14 April 2023

   Updated Impact assessment calculator.

6. 11 January 2023

   Impact assessment calculator and user guide updated.

7. 26 October 2022

   GDP deflators updated.

8. 29 July 2022

   Impact assessment calculator and user guide updated.

9. 4 April 2022

   Replaced Impact assessment calculator file.

10. 26 November 2021

    Updated calculator with the latest Gross Domestic Product (GDP) deflator figures.

11. 28 July 2021

    Updated versions added

12. 26 April 2021

    Impact Assessment calculator updated

13. 8 December 2020

    Have updated the calculator document

14. 1 October 2020

    IA calculator has been updated

15. 6 May 2020

    Impact assessment calculator updated

16. 12 March 2020

    IA calculator user guide

17. 19 February 2020

    New IA template attached.

18. 9 October 2019

    Updated calculator with new GDP deflator figures.

19. 5 April 2019

    Updated calculator with new GDP deflator figures.

20. 18 March 2019

    Updated to include latest GDP deflators - addition of user guide.

21. 2 November 2018

    We have uploaded a version with updated GDP deflators (October 2018 version).

22. 5 July 2017

    Calculator updated.

23. 7 April 2017

    Calculator updated.

24. 26 January 2017

    Calculator updated to reflect ONS latest release

25. 6 October 2016

    Updated version of the calculator.

26. 6 July 2016

    Calculator updated.

27. 29 April 2016

    Calculator updated.

28. 8 April 2016

    Calculator updated.

29. 9 March 2016

    Calculator updated.

30. 31 July 2015

    Calculator updated.

31. 18 May 2015

    Calculator updated.

32. 23 January 2015

    Calculator updated January 2015.

33. 10 October 2014

    Calculator updated October 2014

34. 2 July 2014

    Calculator updated July 2014.

35. 4 April 2014

    Calculator updated.

36. 10 January 2014

    Calculator updated.

37. 3 October 2013

    Spreadsheet updated.

38. 13 May 2013

    Updated version of impact assessment calculator released.

39. 13 May 2013

    First published.