Part 4A of the Government of Wales Act 2006 provides the Senedd with the power to set the WRIT, enabling it (the Senedd) to set a rate for a proportion of the income tax paid by Welsh taxpayers.
Mae Rhan 4A o Ddeddf Llywodraeth Cymru 2006 yn rhoi’r pŵer i Senedd Cymru bennu CTIC, gan ei galluogi (y Senedd) i bennu cyfradd ar gyfer cyfran o’r dreth incwm a delir gan drethdalwyr Cymreig.