https://www.gov.uk/government/publications/income-tax-deduction-at-source-from-interest-paid-on-private-placements
Income Tax: deduction at source from interest paid on private placements - GOV.UK
This Tax Information and Impact Note is about the deduction of Income Tax at source from interest paid on private placements.
tax deduction at source
https://en.wikipedia.org/wiki/Tax_deducted_at_source
Tax deduction at source - Wikipedia
tax deduction at sourcewikipedia