All citizens in Wales have a stake in Welsh taxes, whether as taxpayers or as beneficiaries of public services funded through taxation, or both.
Mae trethi Cymru yn berthnasol i bob dinesydd yng Nghymru, p’un a yw’n drethdalwr, neu’n fuddiolwr sy’n elwa ar y gwasanaethau cyhoeddus a ariennir drwy drethi, neu’r ddau.