Posted on: November 2, 2026 in Funding, finances & investors, Strategy, growth & innovation

’m currently supporting one of my startup founders with a fundraising project, and we’re using two established tax efficient schemes designed specifically for early stage ventures.

Navigating early-stage fundraising can feel like balancing two conflicting imperatives: pitching a bold, high-risk, high-return vision for the future while convincing investors that their capital is safe. The bridge across this divide can be built on two government backed tax relief initiatives: the Seed Enterprise Investment Scheme (SEIS) and the Enterprise Investment Scheme (EIS).

Introduced to encourage private investment in high-growth, early-stage ventures, SEIS and EIS offer private individuals income tax relief, capital gains exemptions, and loss relief. These schemes fundamentally alter the risk-reward ratio for investors. For founders, understanding SEIS and EIS is vital, as is knowing how to structure the schemes, navigate compliance, and pitch their benefits effectively. It can mean the difference between a stalled pre-seed round and a fully subscribed raise.

What SEIS and EIS offer. To utilise SEIS and EIS, a founder must master the mechanics from the investor’s viewpoint. People rarely invest solely for tax relief, but tax relief can tip a maybe into a yes. Both schemes offer a £200k per year threshold for an investor.

SEIS is designed for founders taking their first equity funding. It offers the most generous tax breaks because it carries the highest risk. It operates as follows:

• Upfront Income Tax Relief: Investors can claim back 50% of their investment against their UK income tax bill for the current or previous tax year. An investor putting £20k into your startup effectively exposes only £10k of their own capital upfront.
• Capital Gains Exemption: If an investor holds their shares for three years, any gain made upon selling those shares is 100% tax-free.
• Capital Gains Reinvestment Relief: An investor who sells an asset and reinvests that gain into an SEIS qualifying company can reduce their CGT liability on the original gain by 50%.
• Loss Relief: Investors can claim loss relief on the effective net loss (total investment less the initial tax relief), mitigated against income tax or capital gains. This limits a net downside risk to as little as 22.5p on every £1 invested.

EIS is aimed at more mature startups scaling their operations:

• Upfront Income Tax Relief: Investors can claim 30% income tax relief on investments up to £1m per tax year (or up to £2m if investing in Knowledge-Intensive Companies).
• Capital Gains Exemption: Like SEIS, gains on EIS shares are completely tax-free if held for at least three years.
• Capital Gains Deferral Relief: Investors can defer tax liabilities on gains made from selling other assets if those gains are reinvested into EIS qualifying shares.
• Loss Relief: If the business fails, loss relief applies to the remaining 70% capital at risk, capping the maximum downside at 38.5% for top-rate taxpayers.

Eligibility. Before promising potential investors that they can claim SEIS or EIS, you must ensure your company meets HMRC’s statutory conditions:

SEIS Eligibility Rules:

• Age of Trade: The company must have started its qualifying trade <3 years ago.
• Gross Assets: Gross assets must not exceed £350k before the shares are issued.
• Employee Count: The startup must have fewer than 25 full-time employees.
• Maximum Funding: A company can raise a maximum SEIS funding of £250k

EIS Eligibility Rules:

• Age of Trade: The company must raise its first EIS investment within seven years of its first commercial sale (ten years for Knowledge-Intensive Companies).
• Gross Assets: Gross assets must not exceed £15m before share issuance, and £16m immediately after.
• Employee Count: Fewer than 250 full-time employees (500 for Knowledge-Intensive Companies).
• Maximum Funding: Up to £5m per year, with a lifetime limit of £1 (£20m for Knowledge-Intensive Companies).

Excluded Activities and the Risk-to-Capital Test. HMRC actively polices whether a business qualifies. Your startup must pass two hurdles:

• Qualifying Trade: The business cannot engage in excluded activities, which include property development, financial services, legal or accountancy services, hotel and nursing home management, farming, or energy generation.nbsp;
• The Risk-to-Capital Test: Introduced to prevent wealth-preservation schemes from abusing tax relief, HMRC requires proof that the company has a long-term plan to grow and there is a genuine risk that the investor will lose more capital than they gain from tax reliefs alone.

The Process: From Advance Assurance to Issuance. Securing SEIS/EIS tax relief involves a strict admin process. Miss a step or issue shares out of sequence, HMRC will disallow relief for the entire round:

Phase 1: Advance Assurance (‘AA’.) Never launch an angel round without AA -nbsp; a formal letter from HMRC confirming that you will qualify for SEIS/EIS based on your current structure and business plan. While not legally mandatory, 95% of investors will not release funds without seeing an AA letter. What you need to submit for AA:

• Your pitch deck and business plan.
• 3-year financial forecasts.
• Details of existing shareholders and capital structure.
• Details of a lead investor who intends to invest under the scheme.

HMRC processing times for AA can range from two to six weeks, so apply well before you need to close your round.

Phase 2: Taking Investment and Issuing Shares. When closing your round, the order of events is non-negotiable:

• Money In First: Investors must transfer funds to the company bank account before or on the date shares are issued.
• Full Paid-Up Ordinary Shares: Shares issued under SEIS/EIS must be full-risk, non-redeemable, ordinary shares with no preferential dividend rights or liquidation preferences.
• No Debt Conversion: The Advanced Subscription Agreement (ASA) rule: You cannot issue SEIS/EIS shares to settle an existing loan or CLN if the debt was created separately. However, you can use an ASA provided it specifies that the funds will convert into ordinary equity within six months for SEIS, or 12 months for EIS without any option for repayment.

Phase 3: Compliance Statements. Once shares are issued, the startup must trade for at least four months, or spend at least 70% of the SEIS funds raised, before submitting form SEIS1 or EIS1 to HMRC.

Phase 4: Share Certificates &; SEIS3/EIS3 Forms. Upon reviewing your SEIS1/EIS1 submission, HMRC will issue unique claim certificates (SEIS3 or EIS3 forms) for you to distribute to investors. Investors use these documents to claim tax relief.

Other rules:

• Timing: With an SEIS cap of £250k, founders often mix SEIS and EIS on a first raise. The SEIS qualifying shares must be issued on an earlier date, or on the same day before the EIS shares.
• You cannot claim SEIS after receiving EIS funding. If you issue EIS shares first, HMRC considers your company to have out grown the SEIS threshold, permanently invalidating your remaining SEIS capacity.
• Connected Party: To be eligible for SEIS or EIS tax relief, an investor cannot be connected to the company, as an employee or directly/indirectly hold more than 30% of the total share capital or voting rights,
• Founder investment: Founders cannot invest under either scheme if they hold 40% of the company

Share Classes and Preference Rights.

• Preferred Shares with 1x liquidation preference are incompatible with SEIS/EIS. SEIS and EIS rules strictly mandate that qualifying shares carry no preferential rights over other share classes regarding dividends or assets upon winding up.

Pitching SEIS/EIS: an example. Founders who master the SEIS/EIS rules can convert investors much faster. Here is how to frame these benefits effectively during pitches.

When pitching to HNW individuals, reframe the ticket size by showing their actual economic exposure:

If you commit £20k under SEIS, HMRC credits you £10k from your tax bill, making your out-of-pocket cash cost to £10k. If we achieves a 10x exit, your £20k becomes £200k, and that is totally tax-free.

If we completely fail, you can claim loss relief on the remaining £10k against your top-rate income tax, reducing your total net loss to just £4.5k. You are taking £200k of upside for £4.5k of true downside risk.

Summary: Before starting your first set of investor meetings, review this checklist:

1. Secure Advance Assurance: Apply early with HMRC, backed by a business plan, financials, and named prospective lead investor.
2. Verify Non-Excluded Status: Ensure your core product does not fall under financial, property, or legal service exclusions.
3. Respect Capital Caps: Track your lifetime SEIS limit (£250k) and ensure assets stay under £350k prior to issue.
4. Sequence Check: Issue SEIS shares before or alongside EIS shares.
5. Protect Share Class Rules: Issue only fully paid-up Ordinary Shares with no liquidation preferences.
6. Collect Funds First: Ensure investor cash is cleared in your bank before issuing share certificates.
7. File SEIS1/EIS1 Promptly: Submit compliance forms as soon as you hit the 4-month trading mark or 70% spend threshold to issue SEIS3/EIS3 certificates to your investors.

Good luck, and happy fund raising!