O fis Ebrill 2018, bydd Cymru hefyd yn gallu defnyddio pwerau benthyg newydd i fuddsoddi £1bn mewn prosiectau cyfalaf sy'n perthyn i feysydd sydd wedi'u datganoli.
From April 2018, Wales will also be able to use new borrowing powers of £1bn to invest in capital projects in areas of devolved responsibility.