Ymhellach i WQ96790 a sylwadau yn y Senedd ar 25 Mehefin 2025, a wnaiff yr Ysgrifennydd Cabinet nodi'r union ffigur ar gyfer y cyllid canlyniadol a ddarparwyd i Gymru drwy adolygiad gwariant Llywodraeth y DU o ganlyniad i brosiect East West Rail?
The Barnett formula comparability factor with the Department for Transport in the recent UK Spending Review was 0.4 percentage points higher than it would have been if the East West Rail project had been deemed non-comparable. The impact of the Barnett formula on Welsh Government funding depends on both the comparability factor and the change in funding for the relevant UK Government department. In the recent Spending Review, the Department for Transport saw an increase in its capital budget but a reduction in its resource funding. The higher comparability factor meant additional capital funding through the Barnett formula of £2.3 million over the period 2026-27 to 2029-30. On the resource side, the higher comparability factor led to negative consequentials because the Department for Transport’s resource budget as a whole was reduced. Comparability with East West Rail therefore led to a reduction in resource funding totalling £0.3 million over the period 2026-27 to 2028-29.