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SEIS & EIS Basics

Essential guides to the Seed Enterprise Investment Scheme and Enterprise Investment Scheme — what they are, who qualifies, and how they work.

guide 19 Apr 2026

EIS Eligibility: Complete Guide to Qualifying Companies, Investors & Trades

Full EIS eligibility rules for companies and investors. Qualifying trades, excluded activities, knowledge-intensive criteria, and common pitfalls explained.

guide 19 Apr 2026

SEIS Eligibility: The Complete Guide to Qualifying for the Seed Enterprise Investment Scheme

Full breakdown of SEIS eligibility rules for UK startups: company conditions, investor limits, qualifying trades, and the 70% spending requirement.

comparison 19 Apr 2026

SEIS vs EIS: Which Scheme Is Right for Your Startup?

SEIS vs EIS compared side-by-side: tax relief rates, eligibility, investment limits, and which scheme is right for your startup. Updated April 2026.

guide 19 Apr 2026

SEIS Advance Assurance: The Complete Guide for UK Founders

How to apply for SEIS advance assurance from HMRC. Step-by-step process, common rejection reasons, timelines, and what investors expect. Updated April 2026.

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AdvanceAssured is a document-preparation service, not a tax advisor. We help you prepare your SEIS/EIS advance assurance application in the format HMRC expects. For complex cases involving group structures, connected trades, or knowledge-intensive company status, we recommend consulting a qualified tax advisor.
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