EIS (Enterprise Investment Scheme) is a UK tax-advantaged program designed to help early-stage companies raise equity from individual investors by offering those investors significant tax reliefs.

How it works

Qualifying investors can receive income tax relief on a portion of their investment (subject to annual caps and rules), plus potential capital gains tax benefits on disposal and loss relief if the company fails. Companies must obtain advance assurance from HMRC that shares are likely to qualify, then comply with ongoing conditions—employee limits, asset tests, trading activity, no disqualifying arrangements.

SEIS (Seed Enterprise Investment Scheme) is the smaller, earlier-stage sibling with higher relief rates for very young companies.

Founders structure rounds, share classes, and use-of-proceeds to preserve eligibility. Non-qualifying activities (some financial services, property development, acquisitions of existing businesses beyond limits) can break EIS.

Example: a UK SaaS startup raises £1M from angels marketing EIS relief. Counsel files advance assurance; investors rely on expected 30% income tax relief on eligible amounts—rates and caps per current HMRC guidance.

Why it matters

• Founders: EIS widens the angel pool. Missing assurance or botching eligibility forces refunds of tax relief and reputational damage.
• Investors: EIS materially improves risk-adjusted returns on UK seed bets. Always verify advance assurance and subscription documents.
• International VCs: U.S. funds co-investing in UK companies should understand EIS constraints on deal structure.

Common mistake

Assuming all UK startup investment automatically qualifies. Large rounds, prior funding above thresholds, or wrong share terms can disqualify the company—diligence advance assurance before marketing EIS.

Related ideas

• SEIS — seed-stage UK scheme
• Advance assurance — HMRC pre-approval
• VCT — Venture Capital Trust, related retail VC wrapper
• Early Stage — typical EIS company phase