The document summarizes statistics on residential stamp duty land tax (SDLT) in the UK over the past 15-20 years. It finds that: - The total amount of SDLT raised from residential property sales has increased 491% since 1997/98 despite a 42% decline in transactions. - Properties worth £250,000+ account for 86% of SDLT receipts but less than 25% of transactions. If the £250,000 threshold was raised to £500,000, the Treasury would lose approximately £1 billion in receipts. - London properties pay the highest SDLT, with the average payment being over £16,000 in 2012/13 at an effective rate of 3.6