The Enterprise Investment Scheme (EIS) is not just a tax incentive; it is a government-backed strategy to fuel investment in smaller, high-growth companies. Designed to reward risk-taking, EIS gives investors serious tax advantages while helping ambitious businesses secure capital.
EIS tax relief is powerful, but only when structured right. Our team advises clients across sectors on how to leverage these incentives without stepping outside HMRC lines.
What is EIS Tax Relief?
EIS tax relief rewards investors who buy new shares in qualifying companies. Since its launch in 1994, the Enterprise Investment Scheme has been a cornerstone of UK innovation policy. It reduces investor risk and encourages entrepreneurship by aligning government support with private ambition. For founders, it opens the door to much-needed funding; for investors, it offers a meaningful tax break for backing innovation.
Types of EIS Tax Relief
Here is what investors and companies need to know: the key EIS tax reliefs, what they offer, and the fine print.
| Type of Relief | Benefit | Limitations / Conditions |
| Income Tax Relief | Offset up to 30% of the investment against income tax liability. | Up to £1 million per year (£2 million for knowledge-intensive companies). |
| Capital Gains Tax Relief | No capital gains tax on profits from EIS shares held for at least three years. | Shares must be held for a minimum of three years. |
| Capital Gains Deferral Relief | Defer gains from other assets by reinvesting in EIS. | Deferral lasts until EIS shares are sold. |
| Inheritance Tax Relief | Shares may qualify for 100% inheritance tax relief after two years. | Business property relief rules apply. |
| Loss Relief | Offset share losses against income. | Reduces the net cost of investment if the company fails. |
Key EIS Tax Benefits
EIS tax relief offers more than one advantage; it combines income tax relief, capital gains exemptions, and inheritance tax benefits to make high-risk investment more appealing.
EIS Income Tax Relief
Investors can claim income tax relief worth 30% of the investment, up to £1 million each tax year. For knowledge-intensive companies, that ceiling doubles. The result? A tangible reduction in overall income tax liability and one of the most effective tax incentives in the UK.
EIS Capital Gains Tax Relief
Hold EIS shares for three years, and any gain made on disposal is free from capital gains tax. For long-term investors, this EIS capital gains tax relief can be a significant boost to overall return.

Capital Gains Tax Deferral
Existing capital gains can be deferred by reinvesting into EIS-qualifying shares. The deferred amount only becomes taxable when the EIS shares are sold, giving investors flexibility to manage timing and liability.
EIS Loss Relief
Not every venture succeeds; EIS acknowledges that. If an investment fails, losses can be offset against income tax or capital gains. This EIS loss relief cushions downside risk and improves overall return potential.
Inheritance Tax Relief
After two years, qualifying EIS shares may benefit from 100% business property relief. For investors thinking long-term, this inheritance tax relief is a strategic advantage.
How Does EIS Tax Relief Work?
It starts with subscribing to new shares in an EIS-qualifying company. Once HMRC approves, investors receive an EIS3 certificate, the key document for claiming EIS tax rebate benefits through a self-assessment return.
The process is not forgiving of mistakes. Both investors and companies must meet strict HMRC conditions. Breach those, and the relief can be withdrawn. That is why professional legal and tax advice is not optional; it is essential.
Claiming EIS Tax Relief
Knowing how to claim EIS tax relief properly saves time and money.
EIS Income Tax Relief Carry Back: Investors can carry back part or all of their investment to the previous tax year, within annual limits. This allows flexibility and often a faster tax recovery.
Claiming via Self-Assessment: Submit details from the EIS3 certificate when filing a self-assessment. Those wondering how to claim EIS tax relief for the previous year can do so if the investment qualifies for carry back.
Loss Relief Claims: When an investment fails, EIS loss relief on tax returns lets investors offset the loss against income, a smart way to limit damage.
EIS Scheme Tax Benefits for Companies
EIS is not just for investors; companies benefit too. By offering EIS shares tax relief, businesses attract investors looking for tax-efficient opportunities. To qualify, a company must:
- Be unquoted and UK-based.
- Have assets below the qualifying threshold.
- Operate a qualifying trade (some sectors are excluded).
- Use funds for growth and expansion, not debt replacement.
Blackmont Legal supports companies with HMRC advance assurance, share issue structuring, and maintaining compliance throughout the qualifying period.
SEIS and EIS Tax Relief
EIS often works alongside the Seed Enterprise Investment Scheme (SEIS). SEIS offers higher relief but is capped at £250,000, ideal for very early-stage businesses. EIS covers larger funding rounds and later growth stages. Together, SEIS and EIS tax relief form a two-step ladder for scaling UK innovation.
Practical Considerations
Understanding how EIS tax relief works in practice is as much about discipline as opportunity.
EIS Tax Treatment: Reliefs only apply if the shares are held for three years and all qualifying conditions are met.
EIS Tax Relief Calculator: Online tools give rough estimates, but professional advice ensures accuracy.
EIS Tax Relief HMRC Compliance: HMRC scrutinises applications. One wrong move, and relief can be delayed or denied.
Risks and Safeguards
EIS brings big rewards and big risks.
- Investing in early-stage companies is high-risk by nature.
- EIS shares are illiquid and not easily sold.
- HMRC can withdraw relief if rules are broken.
With proper structuring, EIS scheme income tax relief becomes part of a smart, diversified investment portfolio, not a gamble.
Why Choose Blackmont Legal?
Getting EIS right takes precision. Our team does not just understand the law; we understand the business logic behind it. We:
- Advise investors on structuring EIS investments and maximising reliefs.
- Guide companies through applications, share issues, and compliance.
- Clarify technical points, from carrying back EIS relief on tax returns to inheritance tax and loss relief.
Final Thoughts
EIS investments tax relief creates a win-win: investors gain tax-efficient opportunities, and businesses access funding built for growth. But the system rewards those who know how to play it