Regulatory impact assessment: see Part 2 of the Explanatory Memorandum to The Land Transaction Tax (Modification of Relief for Acquisitions Involving Multiple Dwellings) (Wales) Regulations 2025
Rheoliadau Treth Trafodiadau Tir (Addasu Rhyddhad ar gyfer Caffaeliadau sy'n Ymwneud ag Anheddau Lluosog) (Cymru) 2025: asesiad effaith integredig