A detailed overview of Stamp Duty Land Tax (SDLT) in England and the distinct Land Transaction Tax (LTT) in Wales, which replaced SDLT in that region on April 1, 2018. The sources explain that both are taxes imposed on property transactions, with SDLT replacing the older Stamp Duty, which taxed documents instead of transactions. The explanation covers the applicability of SDLT and LTT to residential and non-residential properties, detailing the various tax rates, thresholds, and calculation examples for each type. Furthermore, the documents outline specific reliefs and exemptions available under SDLT, such as for first-time buyers, noting that LTT in Wales does not offer this particular relief. Finally, the text addresses the administrative processes, noting that SDLT is managed by HMRC while LTT is handled by the Welsh Revenue Authority, and includes information on deadlines and late penalties for non-compliance.