EMI exists because early-stage companies cannot pay what good people are worth, and it is the most generous share scheme in the UK tax system. When it is set up correctly, an employee pays no income tax on the grant, nothing on exercise if the price was set at market value, and capital gains tax when they eventually sell.
When it is not, the same options become unapproved, with income tax and possibly National Insurance on exercise, on a gain the employee cannot yet turn into cash. The usual cause is a valuation that was not agreed or a notification that went in late.
On 6 April 2026 the gross assets limit went from £30 million to £120 million, the employee cap from 250 to 500, and the exercise window from 10 years to 15 (HMRC EMI guidance). Companies that had grown out of EMI, or were about to, should look again.








