Mynegodd Rebecca Evans, Kate Forbes a Conor Murphy eu pryderon am y pwerau gwario a nodir yn y Bil, sy'n diystyru'r setliad datganoli sy'n bodoli’n barod. Mae'r pwerau'n galluogi Llywodraeth y DU i wario mewn meysydd datganoledig, gan gynnwys y cyllid a ddaw yn lle cyllid yr Undeb Ewropeaidd, ac i wneud hynny heb unrhyw drafodaeth â’r gwledydd datganoledig. Mynegodd y Gweinidogion Cyllid bryderon hefyd ynghylch goblygiadau hyn i’r trefniadau ariannu canlyniadol yn y dyfodol.
Rebecca Evans, Kate Forbes and Conor Murphy expressed their joint concerns on the spending powers set out in the Bill which override the existing devolution settlement. The powers enable the UK government to undertake spending in devolved areas, including for replacement EU funding, without any engagement with devolved nations. Finance Ministers also voiced concerns about what this could mean for future consequential funding arrangements.