English: I thank you for that important question. There are two things I'd like to offer in my response, with the first being that I'm really pleased with what we were able to achieve over the course of the last Senedd term in terms of making council tax fairer. We removed the punishment of imprisonment for the non-payment of council tax because we know that struggling to pay your bills shouldn't be a crime. We also ensured that care leavers up to the age of 25 were removed from the burden of council tax, and we also worked really closely with MoneySavingExpert and Martin Lewis to ensure that people with severe mental impairments were able to access the range of support available to them in terms of support for council tax payments particularly. So, we did a lot in terms of making council tax fairer, but John Griffiths is absolutely right that the system, in and of itself, is not a progressive system; it's a regressive system, as the IFS said in that report, which was commissioned by the Welsh Government. Over the course of the last Senedd, we undertook and commissioned a suite of research, including the work from the IFS, but also work from Bangor University, Cardiff University, and others, to explore what a fairer system might look like in future. Those options included a land value tax, local income tax, and keeping our current system but with a revaluation and potentially additional bands within the system. So, all of those pieces of work were collated in a summary of findings, which we published in February, and the job now for the Welsh Government, and, hopefully, working with partners across the Chamber, is to determine which of those options, if any, we take forward and how we go about that. So, there's certainly an exciting road for us, I think, over the course of this Senedd term in terms of the reforming of local taxation to make it fairer.
Welsh: Diolch am eich cwestiwn pwysig. Mae dau beth yr hoffwn eu cynnig yn fy ymateb, a'r cyntaf yw fy mod yn falch iawn o'r hyn y bu modd i ni ei gyflawni yn ystod tymor diwethaf y Senedd o ran gwneud y dreth gyngor yn decach. Cawsom wared ar y gosb o garchar am beidio â thalu'r dreth gyngor gan y gwyddom na ddylai ei chael hi'n anodd talu'ch biliau fod yn drosedd. Gwnaethom sicrhau hefyd fod pobl sy'n gadael gofal hyd at 25 oed yn cael eu heithrio rhag baich y dreth gyngor, a buom hefyd yn gweithio'n agos iawn gyda MoneySavingExpert a Martin Lewis i sicrhau bod pobl â nam meddyliol difrifol yn gallu cael mynediad at yr ystod o gymorth sydd ar gael iddynt i dalu'r dreth gyngor yn arbennig. Felly, gwnaethom lawer o waith ar wneud y dreth gyngor yn decach, ond mae John Griffiths yn llygad ei le nad yw'r system ynddi'i hun yn system flaengar; mae'n system anflaengar, fel y nododd y Sefydliad Astudiaethau Cyllid yn yr adroddiad a gomisiynwyd gan Lywodraeth Cymru. Yn ystod tymor diwethaf y Senedd, gwnaethom gynnal a chomisiynu cyfres o astudiaethau ymchwil, gan gynnwys gwaith gan y Sefydliad Astudiaethau Cyllid, ond hefyd gwaith gan Brifysgol Bangor, Prifysgol Caerdydd, ac eraill, i archwilio sut beth fyddai system decach yn y dyfodol. Roedd yr opsiynau hynny'n cynnwys treth gwerth tir, treth incwm leol, a chadw ein system gyfredol ond ei hailbrisio a chynnwys bandiau ychwanegol o bosibl o fewn y system. Felly, casglwyd yr holl waith hwnnw mewn crynodeb o'r canfyddiadau a gyhoeddwyd gennym ym mis Chwefror, a'r dasg yn awr i Lywodraeth Cymru, gan weithio gyda phartneriaid ar draws y Siambr, gobeithio, yw penderfynu pa un o'r opsiynau hynny, os o gwbl, y dylem fwrw ymlaen â hwy, a sut i wneud hynny. Felly yn sicr, credaf fod gennym ffordd gyffrous o'n blaenau yn nhymor y Senedd hon o ran diwygio trethiant lleol i'w wneud yn decach.