The document introduces the Seed Enterprise Investment Scheme (SEIS), a new UK tax scheme aimed at encouraging investment in start-up companies. It offers income tax relief of 50% of investments of up to 贈100,000, as well as capital gains tax exemptions. To qualify for SEIS, companies must have fewer than 25 employees, assets under 贈200,000, and be less than 2 years old. The scheme is intended to complement existing enterprise investment programs and support small businesses.