Enterprise Management Incentive (EMI) schemes provide significant tax benefits for trading companies with gross assets of £30 million or less, allowing them to recruit and retain employees through share options without incurring income tax or national insurance contributions upon grant or exercise. Companies can grant options valued up to £250,000 per individual, with a total limit of £3 million, while ensuring that qualifying employees work at least 25 hours per week or 75% of their time for the company. However, companies must navigate potential pitfalls, such as changes in control or trading activities, and adhere to strict reporting requirements to maintain the favorable tax treatment of EMI options.