HM Treasury added its response to an independent review of the Green Book discount rate to a GOV.UK page on Oct. 28, placing the department’s position alongside materials on how government appraisals value time.
The page lists a 19-page formal response, a 15-page summary of findings and recommendations, and 245 pages of technical annexes. It also includes the review’s terms of reference. The page history dates publication of the review’s conclusions to June 30, 2026.
The Green Book guides UK government officials in assessing the costs, benefits and risks of options for meeting public objectives. For shortlisted proposals, appraisers adjust values across time using a discount rate.
Stakeholder concerns about the discounting approach emerged during a 2025 Treasury review of the Green Book. The department then commissioned an independent review, which produced the materials now listed on the page.