SEIS & EIS Advance Assurance
Focus on growing your business, and we will help you to securure your SEIS & EIS Advance Assurance for £350
Apply For Key UK's
Venture Capital Schemes
Seed Enterprise Investment Scheme
Perfect for pre-seed and idea-stage startups. SEIS helps you secure early investment by offering investors up to 50% tax relief, making your company far more attractive to angels. Maximum raise: £250k.
Enterprise Investment Scheme
Ideal for companies moving beyond pre-seed. EIS supports larger rounds with 30% tax relief for investors, making it a crucial tool for seed and Series A fundraising in the UK.
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Get started your application
For free
Start with checking your eligiblity, upload your company unformation and let the Undo AI compare it against HMRC criteria, so you can further submit your application for a final review to our legal experts before final submission.
Start with a fast SEIS/EIS eligibility check.Our AI Copilot analyses your company structure, trading activity, shareholding, and documents against HMRC’s criteria — highlighting risks instantly. Free, instant, and accurate.
Upload your pitch deck, business plan, financials, or existing investor materials.Undo Capital automatically extracts the key information and pre-fills your entire SEIS/EIS Advance Assurance application, saving hours of manual work.
Once your application is auto-generated, our legal specialists review every detail for compliance, consistency, and HMRC alignment.We ensure your application is clear, accurate, and approval-ready.
We submit your application directly to HMRC with confidence. Undo Capital prepares everything needed for your submission, and we help you track responses, follow-ups, and investor communications — all in one place.
Valeriia Volkova, Chief Product Officer at Undo Capital
A UK-based global law firm struggled to process thousands of client contracts. With AI agents powered by V7 Go, they now extract key clauses, flag non-standard terms, and ensure compliance across jurisdictions. All document processing takes place on their secure servers via a virtual private cloud deployment.
A UK-based global law firm struggled to process thousands of client contracts. With AI agents powered by V7 Go, they now extract key clauses, flag non-standard terms, and ensure compliance across jurisdictions. All document processing takes place on their secure servers via a virtual private cloud deployment.
A UK-based global law firm struggled to process thousands of client contracts. With AI agents powered by V7 Go, they now extract key clauses, flag non-standard terms, and ensure compliance across jurisdictions. All document processing takes place on their secure servers via a virtual private cloud deployment.
A UK-based global law firm struggled to process thousands of client contracts. With AI agents powered by V7 Go, they now extract key clauses, flag non-standard terms, and ensure compliance across jurisdictions. All document processing takes place on their secure servers via a virtual private cloud deployment.
Undo Copilot predicts application outcome before it is submitted to HMRC.
We leverage multi-LLM to process your company docs and compare application details against HMRC benchmark to ensure you application is sucessfull. This further passes to our internal team to manually verify the information to ensure no errors.
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Got questions about
SEIS / EIS Advance Assurance?
What is SEIS/EIS Advance Assurance and why do I need it?
Advance Assurance is a confirmation from HMRC that your company is likely to qualify for SEIS or EIS tax reliefs when it raises investment. It gives investors confidence that their tax benefits will be approved, making fundraising easier and faster.
How long does it take to get SEIS/EIS Advance Assurance from HMRC?
HMRC usually takes 4–6 weeks to review and respond to applications, though the timeline can vary depending on their workload and the complexity of your submission. At Undo Capital, we typically process applications within 2–5 working days.
What documents do I need to apply for SEIS/EIS Advance Assurance?
To apply for SEIS/EIS Advance Assurance, you’ll typically need the following documents:
• A completed HMRC application form
• Your business plan and financial forecasts
• A copy of your company’s memorandum and articles of association
• Details of your trading activitiesInformation about potential investors (if available)
What are the eligibility criteria for SEIS and EIS?
Key criteria include:
• Your company must have a UK permanent establishment
• You must be carrying out a qualifying tradeYou must meet the asset and employee limits (e.g. gross assets under £350k for SEIS, under £15m for EIS)
• You must raise funds within the scheme’s fundraising limits (£250k under SEIS, £12m under EIS, or £20m for knowledge-intensive companies)
• Money raised must be used for growth and development within a set timeframe
Do I need a lead investor to apply for Advance Assurance?
No, it is preferable that companies show interest from at least one potential investor. This doesn’t have to be a signed commitment — a simple letter or email from an investor can often be enough.
Undo Capital handles everything — SEIS/EIS, investor agreements, share issue, and filings — in one simple, automated platform.
