The Seed Enterprise Investment Scheme (SEIS) is a Government initiative designed to encourage investment in early stage UK start-ups. The scheme encourages investment in SEIS eligible companies by allowing investors to claim substantial tax relief on their investment. The main benefit is that if you pay UK income tax you can claim 50% of your investment back against your income tax. After you make your investment we will provide you with everything you need to claim SEIS tax relief - it's very easy and we have already completed this for a number of existing investors. No accountants necessary, just a quick online form.