Source · Select Committees · Scottish Affairs Committee

Recommendation 4

4

Lack of transparency in Barnett formula comparability percentage calculations limits scrutiny.

Conclusion
The operation of the Barnett formula is not as transparent as it could or should be. In particular, there is a lack of transparency around how comparability percentages are calculated. Comparability percentages are a fundamental feature of the Barnett formula and the only multiplier which cannot be effectively scrutinised by the public. We have heard no 43 good reason for this opacity, which limits the ability of the public and UK and Scottish Parliaments to hold their respective Governments to account. (Conclusion, Paragraph 41)
Government Response

A response document is linked to this report, dated 17 October 2025. Response attribution to this conclusion has not been verified. Read the response document ↗