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seed investment agreement review checklist uk

Investment Agreement Review Checklist: What to Check Before You Sign

A seed investment agreement review checklist for UK founders is not a nice-to-have — it is how you avoid signing away control of your company without realising it. Seed investment agreements in the UK typically cover share class rights, anti-dilution provisions, board composition, information rights, and investor consent thresholds. Each of these can materially affect how you run your business after the round closes. Most founders read the headline valuation and miss the clauses that matter. This page gives you a structured checklist to work through before you sign, flags the terms that most commonly cause problems down the line, and tells you honestly when a clause is complex enough that you need a solicitor to advise you. Atornee can help you read and interrogate the document quickly, but this guide also works as a standalone reference. UK-specific throughout — references to Companies Act 2006 obligations, EIS/SEIS eligibility considerations, and standard BVCA-influenced drafting conventions are included where relevant.

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Why this matters

You have a term sheet or draft investment agreement in front of you. The investor's lawyers drafted it. You have days, not weeks, to respond. You do not have a general counsel. You might have a solicitor on standby but you are not sure what to ask them to focus on. The real problem is not that the document is long — it is that the clauses that matter most are buried in definitions, schedules, and cross-references. Founders regularly sign seed agreements without understanding their drag-along obligations, what triggers investor consent rights, or how liquidation preferences interact with their equity stake in a downside scenario. This checklist exists to close that gap before you sign.

The Atornee approach

Atornee is not a law firm and does not replace your solicitor for a seed round. What it does is let you upload your draft investment agreement and ask it direct questions — what does this anti-dilution clause actually mean for my shareholding, does this consent threshold give investors a veto over hiring decisions, is this information rights clause standard. You get plain-English answers fast, so you arrive at any solicitor conversation already knowing which clauses need negotiating. That saves time and reduces legal fees. For straightforward document orientation and red flag identification, Atornee handles it. For negotiation strategy and final sign-off on a material funding round, escalate to a qualified solicitor.

What you get

A clause-by-clause checklist covering the sections of a UK seed investment agreement most likely to cause founder problems post-close
Clear explanations of red flag terms — drag-along rights, ratchets, weighted average anti-dilution, and investor consent thresholds — in plain English
Guidance on which clauses are standard BVCA-influenced drafting and which are investor-favourable outliers worth pushing back on
Honest escalation prompts so you know when a clause is complex enough to require a UK solicitor rather than an AI review
EIS and SEIS compatibility flags, because certain agreement terms can inadvertently disqualify your investors from claiming tax relief

Before you sign checklist

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1. Confirm the document type — is this a subscription agreement, a shareholders agreement, or both combined — because the review scope differs
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2. Check the share class being issued and map out what rights those shares carry versus your existing ordinary shares before reading anything else
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3. Review the investor consent schedule in full and list every business decision that now requires investor approval — this is where founder control is most commonly eroded
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4. Read the liquidation preference clause and model what your payout looks like in a downside exit at 0.5x, 1x, and 2x the investment amount
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5. Check anti-dilution provisions — note whether they are broad-based weighted average, narrow-based, or full ratchet, and understand the dilution impact on your stake in a down round
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6. Verify that the agreement structure does not inadvertently breach EIS or SEIS qualifying conditions if your investors are claiming those reliefs
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7. Upload the document to Atornee, ask it to identify non-standard clauses, then take that output into any solicitor conversation as your starting brief

FAQ

What should I look for when reviewing a seed investment agreement in the UK?

Focus on five areas first: share class rights and liquidation preferences, anti-dilution provisions, investor consent thresholds, drag-along and tag-along rights, and information rights obligations. These are the clauses that most directly affect how you run the business and what you receive in an exit. Valuation and investment amount are important but they are usually already agreed before the agreement is drafted — the document is where the control mechanics live.

Are seed investment agreements in the UK standardised?

Partially. Many UK seed rounds use BVCA model documents or documents influenced by them, which gives you a baseline for what is standard. But investors frequently modify these templates, and early-stage investors in particular sometimes use bespoke documents that are significantly more investor-favourable than the BVCA standard. Do not assume a document is standard because it looks familiar. Check the consent thresholds, anti-dilution mechanics, and liquidation preference terms specifically.

What are the biggest red flags in a seed investment agreement?

Full ratchet anti-dilution protection is the most aggressive and should be questioned. Broad investor consent schedules that require approval for routine operational decisions are a control red flag. Liquidation preferences above 1x non-participating are worth modelling carefully. Drag-along rights that can be triggered by a minority investor are worth pushing back on. Information rights that require monthly management accounts from day one can create an ongoing administrative burden that is disproportionate at seed stage.

Do I need a solicitor to review a seed investment agreement?

For any material funding round, yes — you should have a UK solicitor review the final agreement before you sign. What you can do before that is use a tool like Atornee to understand the document, identify which clauses are non-standard, and arrive at the solicitor conversation with a focused brief. That reduces the time your solicitor spends on orientation and keeps your legal costs down. Do not skip the solicitor entirely on a seed round — the stakes are too high and the document is too consequential.

Can the terms of a seed investment agreement affect EIS or SEIS eligibility?

Yes. Certain investor protections — particularly guaranteed returns, put options, or preferential rights that HMRC considers to give investors a preferential position — can disqualify shares from EIS or SEIS relief. If your investors are planning to claim EIS or SEIS, both parties have an interest in ensuring the agreement structure is compliant. This is a specific area where you should get confirmation from a solicitor or tax adviser familiar with HMRC's EIS/SEIS rules, not rely solely on an AI review.

How long does it take to review a seed investment agreement?

A thorough manual review of a typical UK seed investment agreement — subscription agreement plus shareholders agreement — takes an experienced solicitor two to four hours. As a founder without legal training, working through it yourself without support could take significantly longer and you may still miss key issues. Using Atornee to do an initial pass and flag non-standard clauses can reduce that time substantially and help you focus your attention and your solicitor's time on the clauses that actually matter.

Related Atornee Guides

Cheap Contract Solicitor Alternative (UK)

Useful context for founders weighing up AI-assisted review against instructing a solicitor for contract work more broadly.

Cheap Solicitor for NDA (UK)

Relevant where an NDA is in place alongside the investment agreement, which is common at seed stage.

Atornee Use Cases

Shows how founders and operators use Atornee across different document types and legal workflows.

External References

GOV.UK Business and Self-employed

Official UK government guidance on business operations, including company structure and compliance obligations relevant to investment rounds.

UK Legislation

Primary statutory reference for Companies Act 2006 provisions that govern share rights, shareholder agreements, and director duties referenced throughout this checklist.

Trust & Verification Policy

Authored By

A

Atornee Editorial Team

UK Investment Document Research

Reviewed By

C

Compliance Review Desk

UK Business Legal Content QA

Last reviewed on 3/4/2026

"This content is based on analysis of common UK seed investment agreement structures, BVCA model document conventions, and the clause-level questions UK founders most frequently raise when reviewing investment documents. It reflects practical patterns observed across early-stage funding documentation rather than advice on any specific transaction."

References & Sources