SI relief is available for individuals who subscribe for qualifying shares or make qualifying debt investments in a social enterprise which meets the SI relief requirements, and who have a UK tax liability against which to set the relief. Investors need not be UK resident.

An investor is entitled to SI relief of 30% of the investment made or, if less, £1m, for the tax year in which the amount was invested ( ITA 2007, s. 257JA (1)–(5)). An election must be made to claim all, or some, of the relief (see ¶322-075).