Datganiad Ysgrifenedig: Cyfraddau Treth Incwm Cymru (CTIC) – Cyhoeddi Cytundeb Lefel Gwasanaeth ac Adroddiad Blynyddol CThEF (2022)
Written Statement: Welsh Rates of Income Tax (WRIT) - Publication of Service Level Agreement and HMRC Annual Report (2022)