The return on your investment into early-stage companies can take a number of years to come to fruition. Angel investors who invested into Facebook took about eight years before getting a very significant financial return from their investment. Typically companies take between three and seven years to achieve an exit, but this can vary. Indeed, you might lose all the money you invest.
Investing in early-stage companies can potentially bring very significant financial gains, but it also carries a very high risk. You can also benefit from the very generous EIS tax relief.