EMI Share Options: A Complete Guide for Founders and Key Employees

The Enterprise Management Incentives scheme is widely regarded as the most tax-efficient employee share option arrangement available in the UK. Designed to help small and medium-sized companies compete with large employers for talent, EMI allows qualifying companies to grant share options to key employees with significant tax advantages — both for the employee who exercises the option and, indirectly, for the company.

For founders, a well-designed EMI scheme is a cornerstone of retention strategy. For employees, EMI options represent a potentially transformative financial event. For both parties, understanding the mechanics, conditions, and risks is essential before any scheme is established.

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What Is an EMI Scheme?

An EMI scheme is a statutory share option arrangement under which qualifying employees are granted options to acquire shares in their employer company at a price fixed at grant. When the options are later exercised (typically on exit or a liquidity event), the employee acquires shares and, assuming the company has grown, realises a gain. The tax treatment of that gain — which is where EMI's advantage lies — is materially more favourable than ordinary employment income.

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Qualifying Conditions

EMI operates within strict eligibility criteria at both company and employee level.

Company conditions:

• Gross assets below £30 million at the date of grant
• Fewer than 250 full-time equivalent employees
• Carrying on a qualifying trade — certain trades are excluded, including banking, insurance, property development, farming, hotels, legal and accountancy services, and others
• Shares must be in an independent company (not a subsidiary)
• The company must have a permanent establishment in the UK

Employee conditions:

• Must be an employee or director working at least 25 hours per week (or, if less, 75 per cent of their working time) for the company. There is no statutory requirement for the employee to be UK-resident, though the company must have a UK permanent establishment
• Must not hold more than 30 per cent of the ordinary share capital (before and after the option is exercised)
• Cannot be an associate of such a large shareholder

Option conditions:

• Options must be over ordinary shares (or shares of the same class as those held by other shareholders)
• Maximum value of unexercised EMI options per employee: £250,000 (measured at market value at grant)
• Maximum aggregate value of unexercised EMI options outstanding across all employees: £3 million
• Options must be exercisable within 10 years of grant

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Tax Treatment: The EMI Advantage

On Grant

No income tax or National Insurance arises when options are granted, provided the options are granted at or above the market value of the shares at the date of grant (agreed with HMRC in advance — see valuation below). If options are granted at a discount to market value, the discount is treated as employment income at the point of grant.

On Exercise

When the employee exercises the option (buying the shares at the exercise price), the gain — being the difference between the market value of shares at exercise and the exercise price — is subject to income tax and NIC only if the option was granted at below market value. For options granted at full market value, no income tax arises on exercise. This is the central advantage over unapproved and CSOP options.

On Sale

When the employee sells the shares acquired through EMI exercise, Capital Gains Tax applies to the gain between the sale price and the market value at exercise (which becomes the base cost). Critically:

• The gain may qualify for Business Asset Disposal Relief (BADR) — formerly Entrepreneurs' Relief — reducing CGT to 10 per cent (rising to 14 per cent from April 2025 and 18 per cent from April 2026) on gains up to the £1 million lifetime limit
• The two-year holding period for BADR runs from the date of grant of the option, not the date of exercise — making EMI uniquely advantageous for exits that occur quickly

This combination — no income tax on exercise, and CGT on sale at the BADR rate (18 per cent for 2026/27, within the £1 million lifetime limit) rather than income tax rates — makes EMI options transformatively more tax-efficient than ordinary salary or bonuses, where employment income is taxed at up to 47 per cent (45 per cent income tax + NIC).

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Comparison with CSOP and Unapproved Options

Company Share Option Plan (CSOP): A statutory approved scheme available to larger companies. Tax treatment is similar — no income tax on exercise if the exercise price equals market value at grant. However, CSOP options are capped at £60,000 per employee (market value at grant). CSOP is the appropriate vehicle for companies that do not qualify for EMI (e.g., those with gross assets above £30 million or in an excluded trade).

Unapproved options: No statutory approval, no conditions, no limits. The discount between exercise price and market value at exercise is fully taxable as employment income at the marginal rate. No BADR eligibility. Used for employees who cannot access EMI (e.g., large shareholders) or where EMI scheme limits are exhausted.

Summary:

	EMI	CSOP	Unapproved
Income tax at exercise	None (if granted at MV)	None (if granted at MV)	Yes — on full gain
NICs at exercise	None	None	Yes
CGT on sale	Yes, potentially BADR	Yes, potentially BADR	Yes, no BADR
Max per employee	£250,000	£60,000	Unlimited
Company eligibility	SME qualifying conditions	Broader	Any
HMRC valuation needed	Yes	Yes	No

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HMRC Valuation

Before granting EMI options, the company must agree the market value of the shares with HMRC's Shares and Assets Valuation (SAV) team. This is done via an online valuation application. HMRC typically responds within 90 days (though backlogs can extend this).

The valuation exercise is important: if EMI options are granted at below the agreed market value, the discount creates an income tax liability at grant. If granted above market value, the options are simply out of the money at the start — no tax consequence, but the employee receives less value.

Valuations for private companies are based on the underlying business value (applying appropriate earnings multiples, net asset value, or DCF approaches) and discounted for minority interest and marketability. Agreed values are valid for 90 days; new grants after that period require a fresh valuation.

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Disqualifying Events

EMI options can lose their qualifying status if a "disqualifying event" occurs. The most common:

• The company ceases to be independent (e.g., acquired by a group company)
• The company grows above the £30 million gross asset or 250 employee limit
• The employee ceases to work the required minimum hours
• The company moves into a disqualifying trade
• The option agreement is varied in a way not permitted by the legislation

If a disqualifying event occurs, options granted before the event retain their qualifying status provided they are exercised within 90 days of the event. Options exercised after 90 days may be treated as unapproved options, with income tax arising on exercise.

This 90-day window is critical — companies undergoing acquisition must ensure option holders are notified promptly and given the opportunity to exercise.

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Anti-Dilution Provisions

EMI option agreements should include provisions dealing with future share issuances and corporate events. Standard provisions include:

• Anti-dilution: the exercise price or option quantity adjusts on a rights issue or bonus issue
• Good leaver/bad leaver: options may vest in full for good leavers (death, disability, redundancy) and lapse in part or full for bad leavers
• Drag-along / tag-along: options may be exercised (or are deemed exercised) on a share sale so option holders can participate in the exit alongside ordinary shareholders
• Time-based vesting: options typically vest over three to four years, with a one-year cliff (no vesting in year one, then monthly or quarterly after that)

These provisions should be negotiated carefully. From the employee's perspective, good leaver protection is valuable; from the company's perspective, ensuring options lapse on dismissal for cause is a governance requirement.

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Expat and International Considerations

EMI options require the employee to meet the working-time commitment (25 hours per week, or 75 per cent of their working time) for a company with a UK permanent establishment at the date of grant. There is no requirement that the employee be UK tax-resident, but the working-time test and the company conditions must be met. If an employee subsequently moves overseas during the vesting or option period:

• Options granted before departure remain EMI options, provided the qualifying conditions continue to be met
• An employee who ceases to meet the working-time commitment (for example, because they no longer work for the company) may trigger a disqualifying event
• On a later return to the UK and resumption of qualifying employment, new grants can be made (subject to qualifying conditions)
• On exit, CGT may arise in the country of residence rather than the UK — depending on the applicable double tax treaty and the jurisdiction's domestic rules on share options

Employees on international assignment should review their option agreements before departure. Tax advice in both the home and host country is essential where vesting or exercise spans jurisdictions.

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Filing and Compliance Requirements

EMI schemes must be registered with HMRC. Annual returns must be submitted via the Employment Related Securities (ERS) online service. Failure to submit returns on time incurs penalties. Companies should maintain an up-to-date option register recording all grants, exercises, lapses, and transfers.

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This guide is for general information only and does not constitute regulated financial advice or legal advice. Tax treatment of share options depends on individual circumstances and legislation, which may change. Seek specialist legal and tax advice before establishing an EMI scheme.

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How Global Investments Can Help

Our advisers work alongside specialist tax lawyers to help founders and business owners design EMI schemes that align with their growth and exit objectives. We assist with the financial planning implications for individual option holders — modelling the tax on exercise and sale, planning the timing of exercise relative to other income, and ensuring option gains are treated in the most tax-efficient manner possible.

For internationally mobile employees holding EMI options, we provide cross-border planning that considers both UK and host country tax positions. Contact us to discuss your situation.