CapBrief/Guides

Cap Table and Equity Guides for UK Founders

Practical references on dilution, valuation, SEIS, option pools, and funding rounds. Written for founders who are preparing to raise or who have just closed a round and need to understand what they signed.

AllCap TablesDilutionFunding InstrumentsValuationFundraisingUK Tax ReliefEmployee EquityInvestor RelationsFounder EquityLegal
Cap Tables7 min

Cap Table Explained

What a cap table is, what goes in it, and why it is the most important document in your company that most founders understand least.

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Cap Tables8 min

How to Build a Cap Table from Scratch

A 7-step process for building a cap table from incorporation — what to record, how to structure it, and how to keep it accurate as your company grows.

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Cap Tables8 min

Cap Table Template: What to Include

A proper cap table has 7 required columns. Most Excel templates miss at least 3 of them — specifically the ones that cause problems in due diligence.

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Cap Tables7 min

Best Cap Table Software for Startups

Most cap table software is built for Series A+ companies. Here is what actually matters for early-stage founders — and what to skip.

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Dilution9 min

Startup Dilution Guide

How funding rounds shrink founder ownership — with a worked example from incorporation to Series A, plus the three things that accelerate dilution faster than you expect.

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Dilution9 min

Equity Dilution Calculator: How Dilution Works

Every funding round dilutes your ownership. Here is how to calculate exactly what you give up — and how to model multiple rounds before you sign anything.

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Funding Instruments8 min

SAFE Note vs Convertible Note

Both convert into equity at your next priced round — but the legal structure, SEIS/EIS implications, and investor rights are different. Here is how to choose.

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Valuation8 min

Pre-Money vs Post-Money Valuation

A £1M raise at "£4M pre" gives investors 20%. The same raise at "£4M post" gives them 25%. That ambiguity is rarely accidental — here is how to protect yourself.

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Investor Relations6 min

Investor Update Template

Monthly investor updates take 20 minutes to write and buy you goodwill that takes months to earn any other way. Here is exactly what to include.

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UK Tax Relief10 min

SEIS and EIS Eligibility Guide

SEIS gives investors 50% income tax relief. EIS gives 30%. Here is what your company must do — and must never do — to qualify, including the advance assurance process most founders skip.

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Fundraising11 min

Startup Funding Rounds Explained

Pre-seed to Series C — what changes at each round, how much equity to give up, and how UK-specific programmes like SEIS, Innovate UK, and R&D credits fit into your strategy.

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Employee Equity9 min

Option Pool and Vesting Schedules

How to set up an option pool, structure 4-year vesting with a 1-year cliff, use EMI for maximum tax efficiency, and understand how grants appear on your fully diluted cap table.

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UK Tax Relief10 min

SEIS vs EIS: Complete Comparison

SEIS gives investors 50% income tax relief. EIS gives 30%. Learn the eligibility rules, investment limits, CGT treatment, and which scheme your startup should use first.

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Founder Equity9 min

Startup Equity Split Calculator

How to split equity between co-founders fairly. Covers contribution-based models, vesting schedules, the 50/50 trap, and what happens when a co-founder leaves early.

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Funding Instruments10 min

Convertible Note Template UK

A complete guide to convertible notes for UK startups. Covers key terms, valuation caps, discounts, interest rates, maturity dates, and how notes convert at your next priced round.

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Legal11 min

Shareholder Agreement Template

A shareholder agreement protects founders, investors, and the company when things go wrong. Learn the 12 essential clauses every UK startup shareholder agreement needs.

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Cap Tables10 min

Cap Table for Seed Round

How to set up and manage your cap table for a seed funding round. Covers pre-money valuation, option pool creation, SEIS/EIS share classes, and post-round ownership calculations.

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Investor Relations11 min

Investor Rights Explained

Understand the rights investors negotiate: liquidation preferences, anti-dilution, board seats, information rights, pro-rata rights, and how they affect your cap table and exit economics.

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Legal10 min

Drag Along & Tag Along Rights

Drag along rights let majority shareholders force a sale. Tag along rights protect minorities from being left behind. Learn how both work, typical thresholds, and SEIS/EIS implications.

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Employee Equity11 min

Employee Share Scheme UK

A complete guide to UK employee share schemes. Covers EMI options, CSOP, growth shares, unapproved options, tax treatment, HMRC reporting, and how each scheme appears on your cap table.

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