Stamp Duty Reserve Tax (SDRT) is a tax on electronic paperless transactions of UK shares, debenture stock, and other securities. SDRT is charged at a rate of 0.5% of the transaction's value.
A tax levied on the transaction when a shareholding is transferred without a document, or when the document is kept outside the UK. It is a key aspect of modern, electronic, and paperless share transactions on UK exchanges.
