EIS
Practical EIS and SEIS advice for founders, finance teams and investors — from advance assurance through to compliance.
EIS and SEIS can materially improve the attractiveness of an equity raise — 30% and 50% income tax relief respectively is a powerful incentive — but the compliance burden is real. We help founders and finance teams navigate eligibility, structure and documentation, so investors can claim relief and the company can keep moving.
EIS and SEIS: The Key Numbers (2026/27)
EIS: investors get 30% income tax relief on up to £1 million invested per tax year (£2 million where the excess goes into knowledge-intensive companies), capital gains exemption on shares held for three years, and CGT deferral relief on gains reinvested.
SEIS: 50% income tax relief on up to £200,000 invested per tax year, with companies able to raise up to £250,000 under the scheme.
From 6 April 2026 the EIS company limits roughly doubled: companies can raise up to £10 million a year (£20 million for knowledge-intensive companies) and £24 million over their lifetime (£40 million KIC), with gross asset limits of £30 million before and £35 million after investment — opening the schemes to significantly larger scale-ups.
Who This Is For
Founders and CFOs planning an EIS/SEIS raise and wanting to reduce execution risk. Investors who need confidence that relief is properly supported. Scale-ups planning follow-on funding where EIS interacts with other reliefs, share classes and group structure — especially now the higher post-April 2026 limits bring later rounds into scope.
What We Do (and Why It Matters)
Eligibility and risk review: we review the company's activities, group structure, trade status and use of funds, and identify the practical 'gotchas' that commonly derail EIS/SEIS — timing, subsidiaries, excluded activities, control/connection points and paperwork. We'll set out what's straightforward, what's borderline, and what needs a decision.
Structuring and documentation: we work with your legal advisers to align the share structure, investor terms and timeline with the relief criteria — enough evidence and governance to stand up to scrutiny without slowing the round down.
Advance assurance support: where appropriate, we prepare and submit advance assurance and make sure the narrative is consistent with the commercial story, the product roadmap and the funding plan.
Post-investment compliance: we support the post-round steps needed for investor certificates and claims, and keep compliance on track for future raises. If HMRC queries arise, we respond with the right level of technical detail and evidence.
How Our EIS/SEIS Support Works
1. Discovery and eligibility scan — we review the trade, group structure, prior funding and intended use of funds to surface eligibility risks early.
2. Structure and timeline alignment — we coordinate with advisers so share terms, sequencing and documentation align with the relief requirements.
3. Advance assurance (where appropriate) — we prepare the submission and supporting narrative to reflect the commercial and technical reality.
4. Post-round compliance — we support the filings and investor documentation, and manage any HMRC follow-up.
Next Steps
If you're planning an EIS or SEIS raise, we'll pressure-test eligibility, align the structure and produce investor-ready documentation — without slowing execution. The best outcomes come from involving us before terms are final.
What You Get With Acumon
- Eligibility and risk review of activities, group structure, trade status and use of funds
- Structuring and documentation aligned with the relief criteria
- Advance assurance preparation and submission
- Post-investment compliance and investor certificate support
- HMRC query handling with structured evidence
- Coordination with R&D relief and Patent Box claims
Why Acumon for EIS?
- Covers both EIS (Enterprise Investment Scheme) and SEIS (Seed Enterprise Investment Scheme)
- Advance assurance from HMRC supported where appropriate
- Related services: R&D Tax Credits and Patent Box
Get a Fixed-Fee Quote
Tell us what you need and we'll come back within one business day with a clear scope and a fixed price — no hourly-rate surprises. Call 020 8567 3451 or use the form and we'll be in touch.
Frequently Asked Questions
How much tax relief do EIS and SEIS investors get?
What changed for EIS in April 2026?
Do we need advance assurance?
What commonly causes EIS/SEIS problems?
Can investors claim relief automatically?
Ready to Sort Your EIS?
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A qualified accountant will be in touch within one business day. Prefer to talk now? Call 020 8567 3451.