Share Purchase Agreements: Key Clauses Every Buyer Must Understand

A Share Purchase Agreement (SPA) is the definitive contract that transfers ownership of an entire business entity, every asset, liability, contract, and employee, from seller to buyer. Unlike an Asset Purchase Agreement, where you cherry-pick specific assets, the SPA delivers the company whole, which means the clauses inside it are your only line of defence against inherited risks. According to SRS Acquiom research, post-closing indemnification claims arise in roughly 20% of private-company acquisitions, and the median claim exceeds $1 M. This guide dissects each major SPA clause, explains how to negotiate it, provides concrete dollar benchmarks, and flags the traps that catch first-time buyers.

SPA vs. APA: Why the Structure Matters

Before diving into individual clauses, you need to understand what makes a share purchase fundamentally different from an asset purchase, because the distinction shapes every provision in the agreement.

In a share (stock) purchase, the buyer acquires the seller’s equity in the target company. The legal entity survives intact: permits, licences, customer contracts, bank accounts, and employee relationships all remain in place. The trade-off is that you also inherit all liabilities, disclosed and undisclosed, including pending litigation, tax arrears, and environmental obligations. That is why SPAs tend to run 50 to 120 pages and contain significantly more protective provisions than a typical APA.

In an asset purchase, the buyer selects specific assets and assumes only expressly listed liabilities. The seller’s entity continues to exist, retaining anything not transferred. Asset deals dominate below $10 M because they offer a stepped-up tax basis and cleaner liability isolation. For a detailed comparison, see our asset purchase vs. stock purchase guide.

When an SPA is the right choice:

• The target holds non-assignable permits, government contracts, or professional licences that would terminate in an asset transfer.
• The seller is a C-Corp and insists on a stock sale to avoid double taxation, though a 338(h)(10) election can sometimes bridge this gap.
• Hundreds of employees, complex lease assignments, or international subsidiaries would make an asset transfer operationally disruptive.
• The company has long-term customer contracts with anti-assignment provisions.

Purchase Price Mechanics

The purchase price clause is more detailed than a single number. It establishes how value is measured, when and how payments are made, and what adjustments can alter the final amount after closing.

Enterprise Value vs. Equity Value

Most SPAs state an enterprise value (the total operating value of the business) and then derive the equity value by subtracting net debt and normalising working capital. The formula is typically:

Equity Value = Enterprise Value − Funded Debt + Excess Cash ± Working Capital Adjustment

Misalignment on this formula is one of the most common sources of post-closing disputes. Make sure the SPA spells out each component’s definition in a dedicated appendix.

Payment Structure

• Cash at close: The majority of the purchase price delivered via wire transfer on the closing date.
• Seller note: A deferred portion (often 10-30% of the price) with a fixed interest rate, repayment schedule, and subordination terms relative to senior debt.
• Earn-out: Contingent payments tied to post-closing financial targets, revenue, EBITDA, or customer retention milestones, paid over one to three years.
• Escrow/holdback: Typically 10-20% of the purchase price deposited with a third-party escrow agent for 12-24 months to satisfy potential indemnification claims (JP Morgan 2025 Holdback Escrow Study).

Working Capital Adjustments

A working capital adjustment ensures the business is delivered with a “normal” level of net current assets. The SPA sets a target peg (usually the trailing-12-month average of current assets minus current liabilities) and requires a true-up within 60-90 days post-closing. If actual working capital exceeds the peg, the buyer pays the surplus to the seller; if it falls short, the purchase price is reduced dollar for dollar.

Negotiation tip: Fight hardest over the definition of working capital items. Sellers sometimes exclude slow-moving inventory or disputed receivables from the calculation to inflate the peg. Insist on a line-item schedule attached as an exhibit.

Representations and Warranties

Representations and warranties (“reps”) are statements of fact the seller makes about the business. If a representation later proves false, the buyer can seek indemnification. This section is typically the longest in the SPA, often 15 to 25 pages, and the most heavily negotiated.

Core Seller Representations

• Financial statements:GAAP-compliant (or consistent with the company’s historical accounting basis), complete, and fairly presenting the business’s financial condition.
• No undisclosed liabilities: All material obligations are reflected in the financials or the disclosure schedules.
• Material contracts:Every contract above a specified dollar threshold (e.g., $25 K) is listed, in force, and not in default.
• Litigation: No pending or threatened lawsuits that could materially affect the business.
• Tax compliance: All returns filed, all taxes paid, no ongoing audits or disputes. Verify this during financial due diligence.
• Employee matters: Wage-and-hour compliance, benefit plan obligations, no unfair-labour-practice charges.
• Environmental compliance: No contamination, no pending environmental orders, all permits current.
• Intellectual property: The company owns or has valid licences for all IP used in operations; no infringement claims.

Materiality Qualifiers and Knowledge Scrapers

Sellers will attempt to water down reps with two devices. First, materiality qualifiers (“no materialbreach”) narrow the scope of each statement. Second, knowledge qualifiers (“to the seller’s knowledge”) limit recourse to what the seller actually knew at signing. As a buyer, push for absolute representations wherever possible. When knowledge qualifiers are unavoidable, define “knowledge” as what the seller knew or should have known after reasonable inquiry, this is a meaningful upgrade over bare actual knowledge.

Survival Periods

Reps do not last forever. The SPA specifies a survival period during which the buyer can bring claims:

• General representations: 12-24 months post-closing (18 months is the most common market term according to the ABA Private Target Study).
• Fundamental representations (authority, capitalization, title to shares): 3-6 years or until the applicable statute of limitations expires.
• Tax representations: Typically survive until 60-90 days after the statute of limitations for the relevant tax period.
• Environmental representations: 3-5 years, reflecting the delayed-discovery nature of contamination claims.
• Fraud: No cap and no time limit in virtually every SPA.

Negotiation tip: Always push for at least an 18-month survival period on general reps. Data from SRS Acquiom shows that roughly 49% of indemnification claims surface more than 12 months after closing.

Indemnification: Baskets, Caps, and Escrow

The indemnification clause allocates financial responsibility for breaches of representations, warranties, and covenants. It is the economic backbone of the SPA and the section where most dollars are at stake.

Basket Structures

A basketis the threshold of losses the buyer must absorb before the seller’s indemnification obligation kicks in. There are two common types:

• True deductible (most common, approximately 70% of deals): The buyer absorbs the first X dollars of losses and can only recover amounts above the basket. Typical size: 0.5-1% of the purchase price.
• Tipping basket (approximately 26% of deals): Once cumulative losses reach X dollars, the buyer recovers from the first dollar, the basket “tips” and the seller is liable for the full amount.

Some SPAs include a mini-basket(or “de minimis” threshold) that prevents nuisance claims below a specified per-item amount (commonly $5 K-$25 K) from counting toward the basket.

Indemnification Caps

The caplimits the seller’s maximum liability. According to the Wyrick Robbins M&A study, the median cap for general representations sits at approximately 10% of transaction value, but ranges are wide:

• Lower-middle-market deals ($1-10 M): Caps of 20-50% are common because buyers have less room to absorb loss.
• Mid-market deals ($10-100 M): Caps of 10-20% are standard.
• Large-cap deals ($100 M+): Caps of 5-15% are typical, often supplemented by representations and warranties insurance (RWI).
• Fundamental reps and fraud: Usually uncapped or capped at 100% of the purchase price.

Negotiation tip: If the seller insists on a low cap (10% or less), counter by requesting broader escrow, longer survival periods, or a tipping basket to offset the reduced ceiling.

Escrow Provisions

An escrowholds a portion of the purchase price, typically 10-20%, in a third-party account to fund potential indemnification claims. According to JP Morgan’s 2025 M&A Holdback Escrow Study, the median escrow term is 15-18 months, with a partial release at 12 months and final release at 18-24 months.

Key provisions to negotiate:

• Release schedule:Staged releases (e.g., 50% at 12 months, remainder at 18 months) balance the buyer’s need for protection against the seller’s desire for liquidity.
• Pending-claims holdback: If a claim is outstanding at the release date, the escrow agent retains enough to cover the disputed amount.
• Interest allocation: Specify whether escrow interest accrues to the buyer, the seller, or is split.

Representations and Warranties Insurance

For deals above roughly $25 M, buyers increasingly purchase an RWI policythat sits on top of (or replaces) the seller’s indemnification obligation. RWI premiums have fallen to approximately 2-2.5% of the policy limit in 2025 (down from 3.5-4% in 2022), according to CBIZ and Woodruff Sawyer market reports. Typical deductibles range from 0.5-0.8% of enterprise value, dropping to 0.3-0.5% twelve months after closing. RWI now appears in roughly 75% of private-equity transactions.

Material Adverse Change (MAC) Clauses

A Material Adverse Change (also called Material Adverse Effect or MAE) clause allows the buyer to walk away from the deal, without penalty, if the target business suffers a significant deterioration between signing and closing. MAC clauses appear in approximately 95% of M&A agreements and are among the most heavily negotiated provisions.

Defining “Material”

Courts have historically set a high bar: a decline must be “durationally significant” and substantially threaten the overall earnings potential of the business. In practice, most acquirers negotiate quantitative thresholds as supplements, for example, a decline in trailing-twelve-month EBITDA of more than 15-20% or the loss of a customer representing more than 10% of revenue.

Carve-Outs (Exclusions)

Sellers will push for a long list of events that do not qualify as a MAC, including:

• General economic or industry-wide downturns.
• Changes in applicable law or accounting standards.
• Natural disasters, pandemics, or acts of war.
• Effects arising from the announcement of the transaction itself.

Negotiation tip: Accept reasonable carve-outs, but add a disproportionate-impact exception: even if a carved-out event occurs (e.g., an industry downturn), the MAC clause is triggered if the target is disproportionately affectedrelative to comparable companies. This single phrase preserves most of the clause’s protective value.

Closing Conditions and Pre-Closing Covenants

The period between signing and closing, typically 30 to 90 days, though regulatory complexity can push it past six months, is governed by two interlocking mechanisms: conditions precedent (CPs) and pre-closing covenants.

Conditions Precedent

CPs are requirements that must be satisfied (or waived) before either party is obligated to close. Standard buyer-side CPs include:

1. Bring-down of representations:The seller’s reps must still be true as of the closing date, subject to an agreed materiality standard.
2. No MAC: No material adverse change has occurred since signing.
3. Regulatory approvals: Hart-Scott-Rodino clearance (for U.S. deals over the filing threshold), sector-specific licences, or foreign-investment approvals.
4. Third-party consents: Landlords, key customers, or lenders have consented to the change-of-control.
5. Financing confirmation: The buyer has secured committed debt financing (SBA, bank line, or private credit).
6. Key-employee agreements: Critical employees have signed post-closing employment or consulting contracts.

Failure to satisfy any CP typically gives the non-breaching party the right to walk away without liability. Your Letter of Intent should outline the major CPs early so that neither side is surprised during SPA drafting.

Pre-Closing Covenants

Covenants govern how the seller operates the business between signing and closing. The standard “ordinary course” covenant requires the seller to:

• Run the business consistent with past practice.
• Maintain existing insurance coverage.
• Preserve relationships with key customers and suppliers.
• Not enter into, amend, or terminate material contracts without buyer consent.
• Not issue additional equity, incur debt, or declare dividends.
• Not increase employee compensation above pre-agreed thresholds.

Negotiation tip:Attach a dollar threshold to each “negative covenant” (e.g., the seller may not enter into any new contract exceeding $10 K without written buyer consent). Vague language invites disputes.

Non-Compete and Non-Solicitation Provisions

Because a share purchase delivers the business as a going concern, the buyer’s goodwill is at risk if the seller immediately opens a competing operation or poaches key staff. Restrictive covenants address this risk head-on.

• Non-compete: Prohibits the seller from engaging in the same or substantially similar business within a defined geographic area for a specified period. The enforceable range is typically 3-5 years and a reasonable geography (state-wide, region-wide, or nationwide, depending on the business footprint and state law).
• Non-solicitation of employees: Prevents the seller from recruiting or hiring former employees for 2-5 years. Some agreements also bar the seller from inducing independent contractors to terminate their relationships.
• Non-solicitation of customers:Blocks the seller from contacting, soliciting, or servicing the target’s customers for 2-5 years.

Enforceability detail:Restrictive covenants are governed by state law, and some jurisdictions (notably California, Colorado, Minnesota, and Oklahoma) impose strict limitations. A clause that is valid in Texas may be void in California. Your M&A attorney should draft language that is enforceable in the seller’s state of residence and the target’s primary operating jurisdictions.

Negotiation tip: Tie the non-compete to the full length of any earn-out or seller-note repayment period. If the seller can compete while you are still paying for the business, you have a structural conflict.

Timelines, Legal Costs, and Practical Budgeting

Understanding the real-world timeline and cost of negotiating an SPA helps you budget accurately and set seller expectations.

Typical Timeline

1. LOI to first SPA draft:2-4 weeks. The buyer’s attorney produces the initial draft while financial due diligence runs in parallel.
2. Negotiation rounds: 3-6 weeks. Expect 2-4 mark-up exchanges. The reps, indemnification, and working-capital sections consume the most time.
3. Disclosure schedules: 1-3 weeks. The seller compiles exceptions to each representation, this is effectively a second round of due diligence.
4. Signing to closing: 30-90 days, depending on regulatory approvals, financing conditions, and third-party consents.
5. Total LOI to close: 60-120 days for most lower-middle-market transactions; complex or regulated deals can extend to six months or longer.

Legal Costs

Attorney fees for SPA negotiation vary by deal size and complexity:

• Sub-$2 M deals:$15 K-$35 K for the buyer’s attorney, often on a hybrid fixed-fee plus hourly model.
• $2-10 M deals:$25 K-$75 K, reflecting more complex reps, working-capital mechanics, and potential SBA documentation.
• $10-50 M deals:$50 K-$200 K, often involving multiple law-firm teams (corporate, tax, employment, environmental).
• Escrow agent fees:$3 K-$10 K for account setup and administration.

Each party customarily bears its own legal costs. Budget an additional $5 K-$15 K for the working-capital true-up if you engage an independent accounting firm to verify the closing balance sheet.

Frequently Asked Questions

What is the difference between an SPA and an APA?

An SPA transfers the seller’s shares (equity) in the target company, so the buyer acquires the entire entity, all assets and all liabilities. An APA transfers only specified assets and expressly assumed liabilities, leaving the seller’s entity intact. SPAs are simpler administratively (no retitling of individual assets) but riskier for buyers because of inherited liabilities. APAs offer better liability isolation and a stepped-up tax basis but require more complex asset-by-asset transfers.

How long do representations and warranties survive after closing?

General reps typically survive 12-24 months (18 months being the most common market term). Fundamental reps, such as authority, capitalisation, and title to shares, survive 3-6 years. Tax and environmental reps often survive until the applicable statute of limitations expires plus a 60-90 day claim-filing window. Fraud claims are almost universally uncapped and have no expiration.

What is a typical indemnification basket and cap?

The basket (the loss threshold before indemnification applies) is typically 0.5-1% of the purchase price. Approximately 70% of deals use a true deductible structure (buyer recovers only amounts above the basket), while 26% use a tipping basket (once the threshold is reached, the buyer recovers from dollar one). The cap on seller liability for general-rep breaches is most commonly 10-15% of transaction value in mid-market deals and 20-50% in lower-middle-market transactions. Fundamental reps and fraud are usually uncapped.

Can the buyer walk away after signing the SPA?

Yes, but only under specific conditions. The buyer can typically terminate if: (a) the seller’s representations are materially inaccurate at closing (“bring-down” failure); (b) a Material Adverse Change has occurred; (c) a condition precedent has not been satisfied by the “drop-dead” date (a contractual deadline, usually 90-180 days post-signing); or (d) the seller has breached a pre-closing covenant. Outside these scenarios, walking away exposes the buyer to breach-of-contract liability, which may include a reverse break-up fee.

Do I need an M&A attorney to negotiate an SPA?

Unequivocally, yes. The SPA is a 50-120 page contract with interlocking economic provisions, and a single misworded clause can cost you hundreds of thousands of dollars. Experienced M&A counsel will typically pay for themselves many times over by negotiating tighter reps, better indemnification terms, and protective closing conditions. Budget $25 K-$75 K for a competent acquisition attorney on a deal under $10 M.

The Share Purchase Agreement is where the economic and legal terms of your acquisition crystallise into enforceable obligations. Every clause, from purchase price mechanics to indemnification caps to MAC definitions, represents a negotiation opportunity that directly affects your risk and return. Start with a thorough Letter of Intent that outlines the major deal terms, conduct rigorous financial due diligence to inform your reps and working capital targets, and engage experienced M&A counsel before the first draft hits your inbox. The buyers who close the best deals are not the ones with the highest offers, they are the ones who understand what every clause in the SPA actually means.