UK EIS and SEIS Investment Schemes Explained

Why the schemes exist

EIS and SEIS exist to channel private capital into early-stage UK companies that face difficulty raising finance through traditional routes. The tax reliefs reduce the effective cost of capital and the after-tax loss in the event the company fails.

EIS rules and reliefs

EIS offers 30 percent income tax relief on qualifying subscriptions up to GBP 1 million per tax year (or GBP 2 million if at least GBP 1 million is invested in knowledge-intensive companies). Gains on EIS shares are exempt from CGT if held for three years and income tax relief was claimed. Capital gains realised on other assets can be deferred by reinvesting into EIS within specified time windows. After two years, the shares qualify for 100 percent inheritance tax business relief.

SEIS rules and reliefs

SEIS offers 50 percent income tax relief on qualifying subscriptions up to GBP 200,000 per tax year (raised from GBP 100,000 in April 2023). Gains on SEIS shares are CGT-exempt if held for three years. Investors can claim 50 percent CGT reinvestment relief on gains rolled into SEIS.

Qualifying companies

Companies must meet specific size, age, sector, and activity criteria. SEIS targets companies under three years old with fewer than 25 employees and gross assets under GBP 350,000. EIS allows older and larger companies (up to seven years from first commercial sale, fewer than 250 employees, gross assets under GBP 15 million pre-investment). Knowledge-intensive companies have extended limits.

Loss relief

Where shares fall in value, investors can claim loss relief against income tax or capital gains tax. Combined with the initial income tax relief, the after-tax loss is materially smaller than the cash invested. A 50 percent SEIS relief plus loss relief at the additional rate can reduce the after-tax loss on a failed company to around 13.5 percent of the original investment.

How to invest

EIS and SEIS shares can be subscribed directly into a company or through an EIS/SEIS fund manager. Single-company subscriptions concentrate risk; fund structures spread it across multiple investments. Tax certificates (EIS3 or SEIS3) are issued by the company after share issue and are required to claim relief through Self Assessment.

Risk profile

EIS and SEIS investments are in early-stage private companies. Failure rates are high. The reliefs make the after-tax economics more attractive but do not eliminate the underlying business risk. Liquidity is poor: shares are not listed and typically cannot be sold before a corporate event (exit, IPO, acquisition).

FCA regulation and the Consumer Duty

The Financial Conduct Authority regulates UK retail investment activity under the Financial Services and Markets Act 2000. The FCA's Conduct of Business Sourcebook (COBS) sets the conduct rules for firms dealing with retail clients, including suitability requirements for advised sales, appropriateness assessments for non-advised execution, and disclosure obligations on product information and charges. The Conduct of Business Sourcebook also sets product governance rules requiring firms to design products with a clear target market in mind.

The Consumer Duty, in force since 31 July 2023, requires firms to deliver fair value to retail customers, to ensure communications are clear and not misleading, to support customer understanding, and to support customer outcomes consistent with their needs. Firms must publish annual Consumer Duty implementation reports and demonstrate ongoing monitoring of customer outcomes. The FCA has used the Duty to drive changes in fund pricing, platform fee transparency, and disclosure of total costs and charges.

The Financial Services Compensation Scheme (FSCS) provides compensation up to GBP 85,000 per firm where a regulated investment firm fails and client money or assets are missing. The FSCS does not cover market losses; investments that fall in value with the market are not compensated. The Financial Ombudsman Service handles complaints against regulated firms, with award limits of GBP 430,000 for complaints referred from 1 April 2024.

UK tax allowances and the ordering principle

UK retail investments are typically held inside tax-advantaged wrappers where possible. The annual ISA allowance is GBP 20,000 per adult, with no further tax on income or capital growth inside the wrapper. The pension annual allowance is GBP 60,000 gross for most savers, with tapering for high earners with adjusted income above GBP 260,000. Inside these wrappers, dividends and capital gains accrue free of UK tax.

Outside a wrapper (in a General Investment Account), dividends above the GBP 500 dividend allowance are taxed at 8.75, 33.75, or 39.35 percent depending on the saver's income band, and capital gains above the GBP 3,000 annual exempt amount are taxed at 18 or 24 percent on shares from 30 October 2024 onwards. The CGT annual exempt amount has been reduced substantially from GBP 12,300 in 2022 to 2023 down to GBP 3,000 from the 2024 to 2025 tax year.

Bed and ISA (selling holdings in a GIA and re-buying them inside an ISA in the same operation) is a routine way to migrate wealth from taxable to sheltered wrappers under the annual CGT allowance. Spouse and civil partner transfers can be made on a no gain/no loss basis, allowing each spouse to use their own CGT and ISA allowances.

Platform structure and dealing costs

UK retail investment platforms charge a combination of platform fees (typically 0.15 to 0.45 percent of assets, or a flat annual amount), underlying fund OCFs (0.06 to 1.50 percent depending on the fund), and dealing charges per trade (zero for fund deals, GBP 5 to GBP 12 for equity and ETF trades). Stamp Duty Reserve Tax of 0.5 percent applies to most UK share purchases; ETFs and AIM-listed shares are generally exempt.

Foreign exchange charges apply on overseas-denominated trades. UK platforms typically charge 0.25 to 1.5 percent FX spread depending on the deal size. For a saver holding US-listed shares or ETFs, the cumulative FX charge over a long investment horizon can be material. Specialist multi-currency platforms offer interbank-rate FX with smaller spreads, useful for investors with substantial overseas exposure.

Platform regulation under the FCA Client Assets Sourcebook (CASS) requires client money to be held in segregated bank accounts and client assets in nominee accounts segregated from the platform's own assets. The 2018 collapse of Beaufort Securities and the 2019 SVS Securities special administration tested the framework and confirmed that segregated nominee structures generally protect underlying client assets in firm failure scenarios.

Risk, diversification, and time horizon

Equity investments have historically produced positive long-run real returns on UK and global data but with substantial short-term volatility. Drawdowns of 20 to 40 percent occur in major bear markets. The FCA expects regulated firms to assess clients' attitude to risk, capacity for loss, and investment horizon under the suitability rules. The standard guidance is that investments in equities should be held for at least five years; shorter horizons argue for cash or short-dated bond holdings.

Diversification across asset classes (equities, bonds, property, cash), geographies (UK, developed overseas, emerging markets), and sectors reduces but does not eliminate portfolio risk. Global equity index funds tracking benchmarks such as the FTSE All-World or MSCI World provide broad diversification at low cost. The historical correlation between equities and bonds has varied; the 2022 period saw both fall together, challenging the standard 60/40 balanced portfolio assumption.

The sequence of returns matters particularly for retirees drawing income from a portfolio. Poor returns in the early years of drawdown combined with regular withdrawals can permanently impair the portfolio's lifespan. Standard mitigations include a multi-year cash buffer for income, dynamic withdrawal rules that respond to portfolio value, and partial annuitisation to cover essential expenditure.

Costs over the long run

Investment costs compound over time. A 1 percent annual fee compounded over 30 years removes approximately 26 percent of a portfolio's final value compared with a zero-fee benchmark, at typical long-run equity returns. Index funds with OCFs of 0.06 to 0.30 percent typically outperform active funds with OCFs of 0.50 to 1.50 percent on net-of-fees performance, as documented in successive SPIVA reports from S&P Dow Jones and FCA market studies.

The FCA Asset Management Market Study (2016 to 2017) found weak price competition and persistent underperformance among active funds. The Consumer Duty has driven increased disclosure of total costs and ongoing Value Assessment reports from Authorised Fund Managers, providing investors with comparable data on fund performance and costs. Annual Value Assessments are published on each fund manager's website.

Disclaimer

This article provides general information on EIS and SEIS and is not personal financial advice. EIS and SEIS investments are high-risk and illiquid. Investors should consider seeking regulated advice before subscribing.

Frequently asked questions

Can EIS and SEIS relief be claimed in the same year?

Yes, against separate qualifying subscriptions. The limits are independent.

How is income tax relief claimed?

By including the EIS3 or SEIS3 certificate details on the Self Assessment return for the relevant tax year, with the option to carry back to the previous year.

What happens if the company fails?

Loss relief can be claimed against income or capital gains. Combined with the initial relief, the after-tax loss is smaller than the original investment.

Are EIS/SEIS shares ISA-eligible?

No. EIS and SEIS shares cannot be held inside an ISA. Some EIS-qualifying shares listed on AIM may be ISA-eligible separately.

Is advice required?

EIS and SEIS investments are high-risk. They are typically promoted only to certified high net worth or sophisticated investors. Regulated advice is recommended before subscribing.

Frequently asked questions

Can EIS and SEIS relief be claimed in the same year?

Yes, against separate qualifying subscriptions. The limits are independent.

How is income tax relief claimed?

By including the EIS3 or SEIS3 certificate details on the Self Assessment return for the relevant tax year, with the option to carry back to the previous year.

What happens if the company fails?

Loss relief can be claimed against income or capital gains. Combined with the initial relief, the after-tax loss is smaller than the original investment.

Are EIS/SEIS shares ISA-eligible?

No. EIS and SEIS shares cannot be held inside an ISA. Some EIS-qualifying shares listed on AIM may be ISA-eligible separately.

Is advice required?

EIS and SEIS investments are high-risk. They are typically promoted only to certified high net worth or sophisticated investors.