This part of GOV.UK is being rebuilt – find out what beta means

HMRC internal manual

Capital Gains Manual

Qualifying corporate bonds: relevant discounted securities: CG: income

A relevant discounted security may be converted into another debt which is not a relevant discounted security. For Income Tax purposes, a conversion is treated by FA96/SCH13/PARA5 as a disposal of the relevant discounted security for its market value at that time, see IM1539b.