Exit and Beyond: Completing the Transaction
Lesson 8 of 8 in the Startup Mastery series
You have built NovaTech from an idea in a co-working space to a £50M ARR platform serving 340 enterprise customers. A PE firm has offered £500M. The champagne is on ice. But between a signed term sheet and money in the bank lies the most complex, high-stakes process most founders will ever navigate — and the details matter enormously.
This final lesson walks through how M&A transactions actually close: the legal mechanics, the financial waterfalls, the tax implications, and the question every founder eventually faces — what comes next.
The term sheet is not the finish line — it is the starting gun. Between signing and completion, more value is negotiated, contested, and sometimes lost than at any other point in the transaction. Understanding the mechanics protects your interests and your wealth.
The Share Purchase Agreement
The Share Purchase Agreement (SPA) is the definitive legal document that governs the sale. It runs to hundreds of pages and covers everything from the purchase price and payment terms to the warranties the sellers provide, the indemnities they give, and the conditions that must be satisfied before the deal completes.
Founders often treat the SPA as a legal formality — something the lawyers handle while they focus on the business. This is a mistake. The SPA contains provisions that can cost or save millions, and every clause is negotiable.
Key SPA Provisions Every Founder Must Understand
| Provision | What It Does | Why It Matters |
|---|---|---|
| Purchase price mechanism | Defines how the final price is calculated | Locked box vs completion accounts (see below) |
| Warranties | Seller statements about the business | Breaches trigger claims against you |
| Indemnities | Specific risk allocations | More exposure than warranties — uncapped or high-cap |
| Restrictive covenants | Non-compete and non-solicit | Limits your activity for 2–3 years post-exit |
| Conditions precedent | What must happen before completion | Regulatory approvals, key customer consents |
| Escrow / retention | Money held back post-completion | Covers warranty claims (typically 10–15%) |
Never sign a management warranty deed without understanding personal liability. In most PE transactions, founders and senior management are asked to provide individual warranties about the business. These are personal obligations — a warranty breach can result in a claim against you personally, not just against the company. Ensure your SPA includes warranty insurance (W&I insurance) or negotiate appropriate caps and limitations.
Completion Accounts vs Locked Box
The purchase price mechanism is one of the most consequential decisions in any M&A transaction. There are two primary approaches, and they allocate risk very differently between buyer and seller.
Completion Accounts
- Price adjusted post-completion based on actual balance sheet
- Working capital, debt, and cash measured at completion date
- Buyer prepares completion accounts (typically within 60–90 days)
- Seller can dispute — independent accountant resolves
- Final price not known until weeks after completion
- Favours buyers — they control the post-completion accounting
Locked Box
- Price fixed at signing based on a reference balance sheet date
- No post-completion adjustment — price certainty at signing
- Seller earns interest ("ticker") from locked box date to completion
- "Permitted leakage" defines what cash can leave the business
- Any "non-permitted leakage" is indemnified pound-for-pound
- Favours sellers — price locked, no post-completion surprises
In European M&A, locked box has become the dominant mechanism — over 70% of European PE deals now use it. The seller benefits from price certainty: once the SPA is signed, the purchase price does not change (absent fraud or leakage). The buyer's risk is that the business deteriorates between the locked box date and completion, but they mitigate this through the "ordinary course" covenant — a contractual obligation for the seller to run the business normally during the interim period.
NovaTech's locked box date is set at 31 December 2027, with completion expected on 28 February 2028. The reference balance sheet shows net cash of £8M and working capital of £6M above the agreed target. The PE buyer offers a ticker of 5% per annum on the equity value, compensating Sarah and the shareholders for the two-month delay — adding approximately £4.2M to the total consideration.
The Cap Table Waterfall: Who Gets What
The cap table waterfall is the calculation that determines how the purchase price flows to each class of shareholder. In a venture-backed company with multiple funding rounds, this is rarely a simple pro-rata split. Liquidation preferences, participation rights, and anti-dilution protections mean that different shareholders receive materially different returns.
NovaTech Cap Table Waterfall
| Shareholder Class | Preference | Equity % | Proceeds | Multiple on Investment |
|---|---|---|---|---|
| Series B (PE fund) | £30M 1x non-participating | 18% | £90M | 3.0x |
| Series A (VC fund) | £12M 1x non-participating | 22% | £110M | 9.2x |
| Seed / Angels | None | 8% | £40M | 40.0x |
| Option pool (exercised) | None | 10% | £50M | — |
| Founders (Sarah + co-founders) | None | 42% | £210M | — |
| Total | 100% | £500M |
In NovaTech's case, both the Series A and Series B investors hold 1x non-participating preferences. This means they can choose either their preference amount or their pro-rata share — whichever is higher. At a £500M exit, the pro-rata share exceeds the preference in both cases, so the preferences are irrelevant and the waterfall is effectively pro-rata.
If NovaTech had exited at £80M instead of £500M, the waterfall would look very different. Series B would take its £30M preference first, Series A would take £12M, leaving only £38M for the remaining 80% of shareholders. The founders' 42% of £38M would be £16M — not £33.6M (42% of £80M). Liquidation preferences are designed to protect downside, but they dramatically reshape outcomes in modest exits.
This is why understanding your valuation at every funding round matters — the terms you accept determine your outcome at exit.
BADR: Business Asset Disposal Relief
For UK-based founders, Business Asset Disposal Relief (BADR, formerly Entrepreneurs' Relief) is the most significant tax provision at exit. BADR reduces the Capital Gains Tax rate from 20% to 10% on the first £1M of qualifying gains — a saving of up to £100,000.
BADR Qualifying Conditions
| Condition | Requirement |
|---|---|
| Shareholding | Must hold at least 5% of ordinary share capital |
| Voting rights | Must hold at least 5% of voting rights |
| Employment | Must be an officer or employee of the company |
| Holding period | Must have held qualifying shares for at least 2 years before disposal |
| Trading company | Company must be a trading company (not investment) |
The £1M lifetime limit means BADR saves a maximum of £100,000 per individual (10% of £1M instead of 20% = £100K saving). For a founder like Sarah receiving £210M, BADR is meaningful but not transformative — it applies only to the first £1M of her gain. The remaining £209M is taxed at the standard 20% CGT rate, producing a tax bill of approximately £41.9M. Proper tax planning — including potential use of Business Investment Relief, EIS deferral, and charitable giving — should begin well before the transaction completes.
Sarah qualifies for BADR: she has held more than 5% of ordinary shares and voting rights, has been a director and employee since founding, and has held her shares for well over two years. Her total CGT liability on £210M is approximately £41.8M (£100K at 10% on the first £1M, plus £41.8M at 20% on the remaining £209M).
Escrow and Warranty Claims
In NovaTech's transaction, the buyer requires 10% of the purchase price — £50M — to be held in escrow for 18 months after completion. This is standard practice in PE transactions and serves as a readily accessible fund to satisfy any warranty or indemnity claims that arise post-completion.
1. Completion and Escrow Deposit
At completion, £450M is paid directly to shareholders via the waterfall. The remaining £50M is deposited into an escrow account with a neutral third-party escrow agent (typically a major bank). Interest accrues to the sellers.
2. The Warranty Claims Window
The buyer has 18 months to identify and notify any warranty breaches. Common claims include undisclosed liabilities, customer contract issues, IP ownership defects, or financial misstatements. The SPA defines the claims process, minimum thresholds, and aggregate caps.
3. Claim Resolution
If a claim is made, the parties negotiate. If they cannot agree, the dispute goes to the mechanism specified in the SPA — typically expert determination for financial claims and arbitration for legal disputes. Unresolved claims are deducted from escrow.
4. Escrow Release
At the end of 18 months, any escrow funds not subject to pending claims are released to the sellers. In practice, 85–90% of escrow amounts are released in full — most deals complete without material warranty claims.
Warranty & Indemnity (W&I) insurance has become increasingly common in mid-market transactions. The buyer purchases a policy that covers warranty claims, reducing the amount held in escrow and giving sellers cleaner exits. NovaTech's buyer agrees to W&I insurance covering claims above a £2M threshold, which reduces the escrow from £50M to £25M — releasing an additional £25M to shareholders at completion.
Secondary Sales and Management Buyouts
Not every exit is a full sale. Two increasingly common alternatives deserve attention.
Secondary sales allow individual shareholders to sell their stakes without a full company sale. In later-stage companies, founders and early employees can sell a portion of their holdings to incoming investors during a funding round. This provides liquidity without triggering a full exit process. NovaTech facilitated a secondary sale during its Series B round, allowing Sarah to sell £2M of personal shares — enough to reduce financial pressure without signalling a lack of confidence.
Management buyouts (MBOs) occur when the existing management team, typically backed by a PE firm, acquires the business from its current owners. MBOs are common when founders want to exit but the management team wants to continue building. The PE firm provides leverage (debt financing), the management team contributes a meaningful personal investment ("skin in the game"), and the transaction is structured so that management's equity stake can grow significantly if they hit performance targets.
In an MBO, the management team's initial equity stake is typically 10–20% of the total equity, but through ratchet mechanisms tied to EBITDA or revenue targets, this can grow to 30–40% by the time the PE firm exits. This "sweet equity" structure is how PE-backed management teams generate outsized personal returns.
Life After Exit
The transaction completes. The money lands. The restrictive covenants limit what you can do for the next two to three years. What happens next is a question that catches many founders off guard.
The psychological transition from founder to post-exit individual is more difficult than most people anticipate. Your identity, your social network, your daily purpose, and your sense of impact are all tied to the company you built. Losing that — even voluntarily, even profitably — creates a void that money alone does not fill.
Some founders stay on. NovaTech's PE buyer wants Sarah to remain as CEO for at least 24 months post-completion, aligning with the earn-out period and the management incentive plan. She negotiates a new employment contract with a base salary, a meaningful equity stake in the PE-owned entity (sweet equity), and clear performance targets.
Others move on. The non-compete typically prevents founding a direct competitor for two to three years, but it does not prevent angel investing, advising, or building in adjacent spaces. Many of the best angel investors and venture partners are post-exit founders who channel their experience, capital, and network into backing the next generation.
The NovaTech Journey: By the Numbers
From co-working space to £500M exit in eight years. £50M ARR, 340 enterprise customers, 135% NDR. Intangible assets valued at £420M — 84% of enterprise value — documented and presented using Opagio's Growth Platform. Normalised EBITDA of £12M (50% above reported). Cap table waterfall delivering £210M to founders, with BADR saving £100K on the first £1M of gains. Escrow reduced from £50M to £25M through W&I insurance. The preparation, documented in Lesson 7, made the difference.
Series Conclusion
This series has followed NovaTech from a pre-seed idea through product-market fit, fundraising, scaling, and exit. The consistent thread has been that intangible assets — technology, customer relationships, data, brand, human capital — are not just the primary drivers of enterprise value, but the primary subject of every conversation that matters: with investors, with acquirers, with boards, and with your own team.
The companies that measure, document, and communicate their intangible assets outperform those that do not. They raise at higher valuations. They negotiate better terms. They command higher exit multiples. And they leave less money on the table.
If you are building a company today, start documenting your intangible assets now — not 12 months before exit. The Opagio Valuator and Growth Platform exist to make this practical, structured, and continuous. The intangibles glossary provides the vocabulary. The evidence you build today compounds into the value you capture tomorrow.
Ivan Gowan is Founder and CEO at Opagio. He spent 15 years as a senior technology leader at IG Group (LSE: IGG), overseeing engineering growth from 4 to 250 people during the company's rise from £300M to £2.7bn market capitalisation. He built IG's first online and mobile trading platforms, launched the world's first Apple Watch trading app, and holds an MSc from the University of Edinburgh with neural networks research (2001).