The document summarizes changes to the Stamp Duty Land Tax (SDLT) announced in the UK Autumn Budget of 2017. Specifically: 1) SDLT rates for first-time home buyers purchasing properties worth up to £300,000 will be abolished, and the tax will also be abolished on the first £300,000 of purchases between £300,000-£500,000. 2) To qualify for the lower SDLT rates, buyers must be first-time buyers who have not owned property anywhere in the world previously. 3) Transactions that exchanged contracts before November 22nd but complete afterwards will qualify for the new rates.