EIS Tax Relief UK

EIS tax relief UK provides 30% income tax relief on investments of up to £1m per tax year in qualifying UK SMEs (or £2m where the additional £1m is invested in knowledge-intensive companies), alongside Capital Gains Tax deferral, loss relief, and CGT exemption on gains realised after the three-year minimum holding period. The framework sits in part 5 of the Income Tax Act 2007 and HMRC guidance under VC2. HMRC EIS statistics show £1.9bn was raised under the scheme in the most recent reported tax year, with knowledge-intensive companies representing an increasing share of the qualifying investment population.

EIS provides 30% income tax relief on up to £1m of qualifying investment per tax year

EIS provides 30% income tax relief on investments of up to £1m in qualifying UK SMEs per tax year, with an enhanced £2m limit available where the additional £1m above the £1m baseline is invested in knowledge-intensive companies. The relief is given as a tax reducer (a reduction in the income tax liability for the year) rather than as an income deduction, and can be carried back one year to the previous tax year by election. The mechanism is set out in section 158 of the Income Tax Act 2007 and operated through HMRC self-assessment using EIS3 compliance certificates issued by the investee company.

The relief is limited to the investor's income tax liability for the year of investment (or the carry-back year). Surplus relief is not refundable, but the carry-back election allows investors to use the relief against the prior year's liability where the current year's liability is insufficient. The relief is not transferable between spouses.

Capital gains realised on EIS shares after the three-year holding period are CGT-exempt

Capital gains realised on EIS shares sold after the three-year minimum holding period are exempt from CGT, provided the income tax relief was claimed and has not been withdrawn. The CGT exemption applies only to the EIS shares themselves, not to any unrelated holdings. The exemption is a substantial part of the overall return on a successful EIS investment, particularly given the elevated CGT rates introduced by Finance Act 2024 (18% basic rate, 24% higher rate on most assets from April 2024). For a higher-rate taxpayer investing £100,000 in EIS and selling for £500,000 after the holding period, the CGT exemption on the £400,000 gain saves £96,000 of CGT at the 24% rate.

The three-year period runs from the issue of the shares, not from the date of any earlier investment commitment. The investee company must also have continued to meet the qualifying conditions throughout the period; if the company ceases to qualify (for example by listing on a recognised stock exchange other than AIM), the CGT exemption may be lost.

Loss relief allows EIS losses to be offset against income or capital gains

Losses on EIS shares can be offset against the investor's income for the year of loss or the previous year, or against capital gains, providing a downside protection mechanism that materially reduces the effective net loss on a failed investment. The loss is calculated as the original cost less any income tax relief claimed and less any sale proceeds (or final value on a write-off). For an additional-rate taxpayer who invested £100,000, claimed £30,000 of income tax relief, and recovered nothing on a write-off, the loss is £70,000 against income at 45%, equivalent to a further £31,500 of tax saved. Combined with the original £30,000 income tax relief, the total recovery is £61,500 on a £100,000 investment, capping the net loss at £38,500.

The loss relief mechanism is set out in section 131 of the Income Tax Act 2007 and operated through self-assessment. The election to claim against income (rather than capital gains) must be made by the investor in their self-assessment return for the year of loss or the previous year.

CGT deferral allows gains from other assets to be deferred into EIS investments

CGT deferral relief allows gains realised on other assets to be deferred by reinvesting the gain (not just the proceeds) into qualifying EIS shares within the eligible window, removing the gain from the immediate CGT charge. The deferred gain crystallises when the EIS shares are sold, gifted (other than to a spouse), or the investor ceases to be UK resident. The mechanism is set out in Schedule 5B of the Taxation of Chargeable Gains Act 1992 and operated through self-assessment. The deferral is available without any cap on the deferred gain, and can be used in combination with the income tax relief on the same EIS investment.

The deferred gain crystallises at the rates in force at the time of crystallisation, not at the rates applicable at the time of the original deferral. Investors deferring a 20% CGT gain (under the pre-October 2024 rules) into EIS shares should be aware that crystallisation under the post-April 2024 framework would be at 24% on most assets.

The knowledge-intensive company rules expand qualifying investment scope

Knowledge-intensive companies (KICs) qualify under expanded EIS rules introduced by Finance Act 2018, including higher gross asset limits, longer initial investment qualification windows, and the enhanced £2m annual investment limit for individual investors. A KIC is a company that meets specific R&D intensity criteria or has specialist innovation activity, with the operational tests set out in HMRC guidance and the underlying Income Tax Act 2007 provisions. The KIC framework is intended to address the funding constraints facing UK R&D-intensive companies, particularly in deep technology and life sciences sectors.

British Business Bank data on the EIS market identifies KICs as a growing proportion of qualifying issuers, with venture-backed scale-ups making increasing use of the framework. The cap on EIS lifetime fundraising for KICs is £20m versus £12m for standard EIS issuers, reflecting the higher capital intensity of qualifying KIC business models.

HMRC advance assurance provides certainty before fundraising

HMRC operates an advance assurance process under which companies seeking to raise EIS funds can apply for confirmation that the proposed share issue will qualify, providing certainty for investors before the funds are committed. The advance assurance is non-binding but represents HMRC's view based on the information provided. The process requires a detailed application including the company's business plan, share issue terms, and confirmation that the company meets the qualifying conditions. HMRC has published the application requirements through its EIS guidance and the standard application form.

The advance assurance process has been the standard route for EIS-raising companies for over a decade. HMRC has tightened the application requirements over time, particularly around the substance of the underlying trading activity, in response to compliance findings on schemes that had used EIS to access tax relief without delivering genuine venture investment.

EIS sits alongside SEIS and VCT in the UK venture tax framework

EIS forms part of the UK's broader venture capital tax framework alongside the Seed Enterprise Investment Scheme (SEIS) and Venture Capital Trusts (VCTs), with each providing different combinations of income tax relief, CGT treatment, and qualifying issuer rules. SEIS provides 50% income tax relief on investments of up to £200,000 per year in earlier-stage companies (with the limit raised from £100,000 to £200,000 from April 2023). VCTs provide 30% income tax relief on investments of up to £200,000 per year in listed venture capital funds. The three schemes can be used in combination, with SEIS typically used for very early-stage investment, EIS for follow-on rounds, and VCTs for portfolio venture exposure.

The FCA regulates the financial promotion of EIS and SEIS products under the high-net-worth and sophisticated investor exemptions, with the Consumer Duty (effective July 2023) tightening conduct standards across the wider venture investment marketing landscape.

What is EIS tax relief UK rate?

EIS provides 30% income tax relief on qualifying investments of up to £1m per tax year in UK SMEs (or £2m where the additional £1m is in knowledge-intensive companies). The relief is given as a tax reducer in the year of investment, or carried back to the prior year by election.

What is the EIS vs SEIS relief comparison?

SEIS provides 50% income tax relief on smaller investments (up to £200,000 per year per investor) in earlier-stage companies. EIS provides 30% relief on larger investments (up to £1m, or £2m with KIC). Both provide CGT exemption after the three-year holding period, loss relief, and a form of CGT deferral relief.

How does enterprise investment scheme tax relief work in practice?

The investor subscribes for shares in a qualifying company, receives an EIS3 compliance certificate from the company, and claims the 30% relief through self-assessment. The relief reduces the investor's income tax liability for the year of investment (or the prior year by election). The shares must be held for three years to retain the relief.

What is venture capital tax relief UK other than EIS?

The UK venture capital tax framework includes SEIS (50% relief, smaller earlier-stage), EIS (30% relief, broader SME scope), and VCTs (30% relief, listed venture funds). Each operates under separate rules in the Income Tax Act 2007 and has different qualifying issuer requirements.

Are EIS gains taxable?

Capital gains realised on EIS shares held for the minimum three-year period are exempt from CGT, provided income tax relief was claimed and has not been withdrawn. Gains on shares sold before three years are taxable, and the income tax relief is withdrawn pro-rata to the period.

What is the HMRC advance assurance process for EIS issuers?

HMRC operates an advance assurance process for companies seeking to raise EIS funds. The application includes the company's business plan, share issue terms, and confirmation of qualifying conditions. The assurance is non-binding but represents HMRC's view based on the information provided.

How we verified this

This article draws on the following primary UK sources:

• HMRC: EIS statistics and EIS guidance under VC2
• Income Tax Act 2007 (legislation.gov.uk) part 5 for the EIS framework
• Taxation of Chargeable Gains Act 1992 (legislation.gov.uk) Schedule 5B for CGT deferral
• Finance Act 2018 (legislation.gov.uk) for the knowledge-intensive company framework
• British Business Bank: EIS market data and Small Business Finance Markets reports
• FCA: financial promotion rules for EIS and the Consumer Duty framework
• gov.uk: EIS and SEIS investor guidance

No secondary aggregators, no press releases from commercial providers, and no statistics without a named government or regulatory source were used.