Roedd rhan fawr o’r Papur Gwyn yn gofyn am farn ar sut i atal a mynd i’r afael ag osgoi trethi. Caiff y cyllid a ddaw o drethi datganoledig ei ddefnyddio i dalu am wasanaethau cyhoeddus ar hyd a lled Cymru – bydd o fudd i’n holl gymunedau. Mae osgoi talu yn tanseilio’r gwasanaethau hynny, ac mae’n annheg ac anghyfiawn. Mae’n flaenoriaeth hanfodol i Lywodraeth Cymru osod trefniadau cadarn i fynd i’r afael yn uniongyrchol â’r mater hwn. Byddaf yn disgwyl i Awdurdod Cyllid Cymru flaenoriaethu cydymffurfiaeth a mynd i’r afael â’r rheini sy’n osgoi talu.
A significant part of the White Paper sought views on the approach to preventing and tackling tax avoidance.  The revenue raised by the devolved taxes will be used to help pay for public services across the length and breadth of Wales - it will benefit all our communities.  Avoiding payment undermines those services, and is unfair and unjust.  The establishment of robust arrangements to tackle this issue head-on is an absolute priority for the Welsh Government.  I will expect the Welsh Revenue Authority to prioritise ensuring compliance and addressing avoidance.