SAKURA Law Office | Legal Update by Managing Partner Kenshiro Michishita
September 24, 2026
SAKURA Law Office | Kenshiro Michishita, Managing Partner
SAKURA Law Office has published the fifteenth edition of the Legal Update series by Managing Partner Kenshiro Michishita: "Key Provisions in a Share Purchase Agreement (SPA) - Purchase Price, Representations and Warranties, Indemnification, Liability Limits, Closing Conditions and Dispute Resolution in Japanese M&A (2026)."
A share purchase agreement is not merely a document that records the agreed purchase price for shares. In a negotiated M&A transaction, the SPA is the principal instrument through which the parties convert due diligence findings, regulatory requirements, financing assumptions and commercial expectations into a legally enforceable allocation of risk.
Issues identified in due diligence must ultimately be translated into transaction terms. A known tax exposure may require a specific indemnity. A material customer consent may become a condition precedent. A cybersecurity remediation item may be addressed through a pre-closing covenant or post-closing undertaking. A disputed working-capital position may affect the purchase-price adjustment mechanism. A risk that cannot be quantified may instead influence the liability cap, escrow structure or the decision whether to proceed at all.
For cross-border transactions, the drafting exercise is further complicated by differences in market practice, terminology and legal assumptions. Concepts such as completion accounts, locked-box pricing, leakage, material adverse change, knowledge qualifiers, disclosure, sandbagging, baskets, caps, survival periods and warranty and indemnity insurance can materially change the economics of a transaction even when the headline purchase price remains unchanged.
This Legal Update explains the key provisions that buyers, sellers, private equity sponsors, strategic investors, General Counsel and M&A professionals should examine when negotiating an SPA for an acquisition of a Japanese company, based on Japanese law and public materials available as of September 24, 2026.
Executive Summary
The SPA should be understood as the final risk-allocation architecture of the transaction. It does not replace due diligence; it converts due diligence findings into price mechanics, representations and warranties, covenants, indemnification, closing conditions, termination rights and post-closing obligations.
Purchase-price drafting should address not only the headline amount but also how cash, debt, working capital, leakage, post-signing movements and uncertain future performance are reflected. Completion accounts and locked-box structures allocate economic risk differently and should be selected with a clear understanding of the target's business and accounting profile.
Representations and warranties are not a substitute for specific protection against known risks. Where a material issue has already been identified, a buyer should consider whether a specific indemnity, remediation covenant, escrow, holdback, price adjustment or closing condition is more appropriate than relying solely on general warranties.
Liability provisions must be read as an integrated system. De minimis thresholds, baskets, caps, survival periods, exclusions, mitigation obligations, insurance recoveries, fraud carve-outs and W&I insurance can substantially change the practical value of an indemnity claim.
For transactions involving a gap between signing and closing, conditions precedent, regulatory approvals, interim covenants, MAC provisions, termination rights and the long-stop date must work together. The buyer must protect deal value without exercising unlawful pre-closing control or creating antitrust gun-jumping risk.
SAKURA Law Office and Managing Partner Kenshiro Michishita consider SPA negotiation most effective when the contract is drafted from the transaction's actual risk map, rather than from a generic precedent.
1. The SPA is the transaction's risk-allocation document
The economic bargain in an M&A transaction is not defined by price alone. The same purchase price can produce materially different outcomes depending on how the SPA allocates pre-closing risk, unknown liabilities, regulatory risk, business deterioration, tax exposures, third-party claims and post-closing adjustment.
A well-drafted SPA therefore begins with the transaction thesis and due diligence findings. The parties should identify which risks remain with the seller, which are assumed by the buyer, which must be eliminated before closing and which are reflected in price.
For that reason, the SPA should not be negotiated in isolation from legal, financial, tax and commercial due diligence.
2. Define precisely what is being sold
The SPA should clearly identify the target company, the shares to be transferred, the seller's title and any related securities or rights that may affect ownership.
In Japanese private companies, transfer restrictions, class shares, options, convertible securities, shareholder agreements and prior investment agreements may affect the ability to transfer shares or the rights acquired by the buyer.
The definitions section is not merely technical drafting. Defined terms such as Leakage, Permitted Leakage, Loss, Knowledge, Material Contract, Business Day, Indebtedness and Working Capital can materially affect substantive rights throughout the agreement.
3. Purchase price - the headline number is only the starting point
The SPA must specify not only the agreed equity value but also how enterprise value is converted into the amount actually paid for the shares.
Typical adjustments may relate to cash, indebtedness, debt-like items, normalized working capital, transaction expenses or other balance-sheet items. The parties should define each component with accounting precision and establish how disputes will be resolved.
Cross-border transactions should also address payment currency, bank charges, withholding considerations, funds flow, exchange-rate exposure and the mechanics of international payment.
4. Completion accounts - post-closing true-up
Under a completion-accounts mechanism, the price is adjusted after closing by reference to a closing balance sheet or other agreed financial metrics.
The SPA should define accounting principles, hierarchy of accounting standards, specific policies, the preparation timetable, buyer and seller review rights, dispute procedures and the role of any independent accountant.
Many post-closing disputes arise not because the formula is unclear, but because the accounting principles leave room for inconsistent classification or judgment. The drafting should therefore address recurring issues such as debt-like items, provisions, accruals, deferred revenue and transaction expenses.
5. Locked box - economic risk passes earlier
A locked-box structure fixes the purchase price by reference to a historical balance sheet and generally does not provide for a broad post-closing price adjustment.
The buyer instead relies on protections against value leakage from the target to the seller group between the locked-box date and closing.
The SPA should therefore define Leakage and Permitted Leakage carefully, regulate dividends, management fees, related-party payments and other value transfers, and provide a clear remedy for unauthorized leakage.
6. Earn-outs - useful where valuation depends on future performance
An earn-out can bridge a valuation gap where part of the consideration depends on future revenue, EBITDA, milestones, customer retention or another performance metric.
However, earn-outs can create significant post-closing disputes because the buyer controls the business while the seller's deferred consideration depends on how that business is operated.
The SPA should define the metric, accounting rules, measurement period, information rights, permitted business changes, treatment of extraordinary items and dispute resolution. The buyer should avoid operational restrictions that unintentionally undermine post-closing integration.
7. Escrow and holdback - contractual rights should be recoverable in practice
An indemnity claim has limited practical value if the seller has distributed the sale proceeds or lacks sufficient assets after closing.
Escrow arrangements, holdbacks, bank guarantees, parent guarantees or other credit support may therefore be used to secure post-closing claims.
The amount, duration, release mechanics, claim procedure and interaction with W&I insurance should be negotiated together with the underlying liability regime.
8. Signing and closing - distinguish the two stages
Some transactions sign and close simultaneously. Others require a period between signing and closing because regulatory approvals, third-party consents, financing or corporate approvals remain outstanding.
The SPA should distinguish obligations that arise at signing, matters required before closing, closing deliverables and post-closing obligations.
This distinction is particularly important in cross-border transactions involving FEFTA, merger control, sector-specific licences or foreign regulatory approvals.
9. Conditions precedent - specify what must happen before closing
Conditions precedent may include regulatory approvals, FEFTA clearance or completion of the relevant waiting period, antitrust approval, third-party consents, corporate approvals, financing conditions, release of security interests or agreed remediation.
The drafting should state who bears responsibility for satisfying each condition, the standard of efforts required, deadlines, information-sharing obligations and whether any party may waive the condition.
Conditions should be objective where possible. An overly subjective condition can create uncertainty as to whether a party is genuinely obliged to close.
10. Regulatory approvals and efforts covenants
Where regulatory approvals are required, the SPA should allocate responsibility for filings, cooperation, responses to regulators and potential remedies.
Cross-border deals often require coordination of Japanese merger control, FEFTA and foreign approval processes in one timetable.
The parties should also consider the extent to which the buyer must accept divestitures, behavioural commitments or other remedies. A simple obligation to use 'reasonable efforts' may be insufficient where regulatory risk is central to deal certainty.
11. Long-stop date and termination rights
The long-stop date establishes the outside date by which closing must occur unless extended or otherwise agreed.
The SPA should specify whether extensions are automatic in defined circumstances, whether either party can terminate, whether termination is prohibited for a party whose breach caused the failure and what happens to accrued rights.
Where regulatory approval is uncertain, the long-stop date should reflect realistic review periods rather than an optimistic closing assumption.
12. Pre-closing covenants - preserve value without taking control too early
During the period between signing and closing, the seller may be required to operate the target in the ordinary course and avoid material actions without buyer consent.
Typical restrictions may cover major capital expenditure, new borrowing, dividends, changes in executive compensation, acquisitions, disposals, material contracts or litigation settlements.
However, the buyer does not yet own the target. Excessive buyer control can create competition-law and gun-jumping concerns. The covenant package should protect deal value while preserving independent management before closing.
13. Material Adverse Change (MAC) provisions
A MAC clause may permit a buyer not to close if a sufficiently serious adverse event occurs between signing and closing.
The definition requires careful drafting. Market-wide, industry-wide, economic, geopolitical, pandemic or regulatory developments may be excluded, sometimes subject to a disproportionate-impact exception.
Because MAC rights can affect closing certainty, both the trigger and the burden of proving it should be analysed carefully. A broadly worded clause does not necessarily create a commercially usable walk-away right.
14. Seller representations and warranties - identify the factual baseline
Seller representations and warranties commonly address authority, title to shares, capitalization, financial statements, absence of undisclosed liabilities, material contracts, licences, employment, tax, IP, data protection, litigation and compliance.
Their function is to allocate information risk. If the representation is untrue and the contractual conditions for recovery are satisfied, the buyer may have a contractual claim.
The scope should reflect the target and the due diligence findings. Generic warranties should not be treated as sufficient protection for a business whose value depends heavily on a particular licence, technology or customer.
15. Fundamental warranties
Certain warranties, such as authority, valid title to shares and capitalization, are often treated differently from business warranties.
Fundamental warranties may be subject to higher liability caps, longer survival periods or fewer qualifications because they concern the legal foundation of the transaction itself.
The agreement should identify expressly which warranties receive special treatment rather than leaving the point to interpretation.
16. Knowledge qualifiers
A warranty may be qualified by the seller's Knowledge. The definition of Knowledge can materially affect the buyer's protection.
The SPA should specify whose knowledge counts, whether constructive knowledge is included and whether the relevant persons are deemed to know facts they would have discovered after reasonable inquiry.
In a corporate seller context, identifying the correct individuals is particularly important where information is dispersed among management, legal, finance, HR and operational teams.
17. Materiality qualifiers and materiality scrape
Warranties are often qualified by concepts such as materiality or Material Adverse Effect. This can limit breach findings and damages.
Some buyers seek a materiality scrape, under which materiality qualifiers are disregarded for determining breach, damages or both.
The drafting should state clearly whether materiality is relevant to the existence of a breach, the quantum of loss or both, because ambiguity can produce disproportionate disputes.
18. Disclosure - warranties cannot be understood without the disclosure regime
The seller typically qualifies warranties through a disclosure letter, disclosure schedule or the contents of a data room.
The SPA should specify the standard for effective disclosure. A buyer may require information to be fairly disclosed with sufficient detail to identify the nature and scope of the matter, while the seller may seek broader deemed disclosure.
If general data-room disclosure is permitted without a meaningful standard, warranty protection can be substantially diluted. The parties should address what is disclosed, how it is identified and whether information uploaded shortly before signing is effective.
19. Bring-down at closing
Where signing and closing are separated, the SPA commonly requires representations and warranties to be repeated or deemed repeated at closing.
The parties should determine whether all warranties must remain true in all respects, whether materiality standards apply and how changes arising in the ordinary course are treated.
The relationship between bring-down conditions, disclosure updates and termination rights should be drafted as one system.
20. Sandbagging and buyer knowledge
A sandbagging issue arises where the buyer knows before closing that a representation is inaccurate but later seeks recovery for the breach.
The SPA may expressly permit recovery despite buyer knowledge, prohibit it, or remain silent.
Because the consequences can be significant, especially where diligence has identified a potential issue but its legal or financial effect remains uncertain, the parties should address buyer knowledge deliberately rather than relying on assumptions imported from another jurisdiction.
21. Indemnification architecture
The indemnification provisions determine when and to what extent a party bears losses arising from warranty breaches, covenant breaches, specific risks and third-party claims.
The SPA should define Loss carefully and address causation, mitigation, double recovery, insurance proceeds, tax benefits, recoveries from third parties and whether indirect or consequential losses are included.
Third-party claims require separate procedures covering notice, defence control, settlement authority, cooperation and conflicts of interest.
22. De minimis thresholds, baskets and caps
A de minimis threshold excludes very small claims. A basket may require aggregate claims to exceed a defined threshold before recovery is available. A cap limits the seller's maximum liability.
The economic effect depends on whether the basket is deductible or tipping and on which claims are excluded from the limitations.
Fundamental warranties, tax, specific indemnities, fraud and wilful misconduct may receive different treatment. The SPA should make the hierarchy explicit.
23. Survival periods
The SPA should specify how long claims may be brought for different categories of representation, warranty, covenant or indemnity.
The appropriate period depends on the nature of the risk. Tax, employment, title and fundamental matters may justify different periods from ordinary business warranties.
The interaction between contractual claim periods and applicable statutory limitation periods should be reviewed under the governing law.
24. Known risks and specific indemnities
A known material issue discovered in diligence should not automatically be left to a general warranty.
Specific indemnities may be appropriate for identified tax disputes, litigation, employment liabilities, IP issues, regulatory exposures or other matters whose allocation has been negotiated expressly.
The parties should decide whether general caps, baskets and survival periods apply to specific indemnities or whether separate limits are required.
25. Fraud, wilful misconduct and liability carve-outs
Liability limitations often exclude fraud, wilful misconduct or deliberate concealment.
The precise scope of any carve-out matters because it can determine whether caps, exclusions or contractual claim periods remain available.
Cross-border precedents should not be imported mechanically; terminology and legal effect should be reviewed under the selected governing law.
26. Warranty and Indemnity Insurance (W&I)
W&I insurance can shift certain warranty risks from the seller to an insurer and is common in private equity and competitive auction processes.
However, it does not eliminate the need for diligence. Insurers generally expect a credible diligence process and may exclude known issues, forward-looking matters, certain tax risks or areas not adequately diligenced.
The SPA, disclosure process and insurance policy should therefore be negotiated consistently. Specific known risks may still require separate protection.
27. Tax covenants and tax indemnities
Tax matters often require a separate covenant or indemnity regime addressing pre-closing tax liabilities, tax audits, returns, elections, settlements and cooperation.
The parties should coordinate the tax covenant with the purchase-price mechanism, representations, indemnities and any tax insurance.
International structures may also raise withholding, permanent establishment, transfer pricing and treaty considerations that should be reviewed with tax advisers.
28. Restrictive covenants - non-compete and non-solicit
A seller may be restricted from competing with the transferred business or soliciting key employees or customers after closing.
Under Japanese law, the enforceability of restrictive covenants depends on the circumstances and reasonableness of the restriction, including scope, duration, geography, business necessity and impact on the restricted party.
A restriction drafted more broadly than necessary may create enforceability risk. The covenant should be tied to protection of the value actually acquired.
29. Confidentiality and public announcements
The SPA often regulates confidentiality, press releases, exchange disclosures, regulatory announcements and communications with employees, customers and suppliers.
For listed companies, mandatory disclosure obligations may override contractual approval rights.
Cross-border transactions should establish a practical process for coordination across time zones, languages and multiple regulatory regimes.
30. Closing mechanics and funds flow
Closing mechanics should specify the documents, payments, share-transfer steps, corporate approvals and other actions required to complete the transaction.
Funds-flow arrangements should identify payment accounts, sequence, release conditions, escrow movements, repayment of debt, transaction expenses and any shareholder loans.
A detailed closing checklist is particularly important in cross-border transactions where banking cut-off times, currency conversion and multiple advisers can affect execution.
31. Governing law and dispute resolution
The parties should select governing law and dispute resolution with enforcement in mind rather than treating them as boilerplate.
Japanese court litigation may be appropriate where the target, evidence and assets are located in Japan. International arbitration may be preferable where confidentiality, neutrality, enforceability abroad or procedural flexibility is important.
The clause should address forum, seat, institution, language, number of arbitrators and interim relief where relevant.
32. Bilingual SPAs and controlling language
Cross-border transactions often use English, Japanese or bilingual SPAs.
If two language versions exist, the agreement should state which version prevails in the event of inconsistency. Mechanical word-for-word translation can create ambiguity where legal concepts do not map perfectly across languages.
The drafting process should focus on one agreed legal meaning, with both language versions reflecting that meaning consistently.
33. Listed-company acquisitions and Japan's takeover framework
For acquisitions involving Japanese listed companies, SPA drafting may interact with tender offer rules, securities disclosure, insider trading restrictions, stock exchange rules and the target board's response to an acquisition proposal.
METI's 2023 Guidelines for Corporate Takeovers remain an important source of principles and best practices. In June 2026, METI published draft interpretive materials, key points and Q&A for public comment. As of September 24, 2026, those 2026 materials should be distinguished from the final 2023 Guidelines and treated according to their then-current status.
The contractual framework should therefore be coordinated with the public-company transaction process rather than drafted as though the transaction were a private bilateral share sale.
34. Buyer-side negotiation priorities
A buyer generally focuses on price certainty, access to information, broad and accurate representations, sufficient recourse, closing certainty, regulatory protection and control over known risks.
But the buyer should avoid pursuing every theoretical protection equally. Negotiation resources should be concentrated on provisions that relate directly to enterprise value and the identified risk profile.
A buyer that understands which protections are essential and which are tradeable is usually better positioned to close the transaction on disciplined terms.
35. Seller-side negotiation priorities
A seller generally seeks price certainty, limited post-closing exposure, clear disclosure mechanics, predictable claim periods, liability caps and a clean exit.
Private equity sellers may place particular emphasis on limited recourse and use of W&I insurance. Strategic sellers may need additional protections concerning retained businesses, transition services, shared assets, brands, employees or ongoing commercial relationships.
The seller should prepare the disclosure process and known-risk allocation before the final stage of SPA negotiation rather than reacting to buyer demands after diligence is complete.
36. SAKURA Law Office's approach to SPA negotiations
SAKURA Law Office and Managing Partner Kenshiro Michishita view the SPA as the document in which the transaction's commercial thesis, due diligence findings and regulatory constraints are converted into enforceable legal architecture.
The objective is not to maximize the number of protective clauses. It is to identify the risks that matter, decide who should bear them and draft the agreement so that price, closing certainty and post-closing liability reflect that allocation clearly.
SAKURA Law Office advises Japanese and foreign clients on M&A, cross-border transactions, legal due diligence, SPAs, shareholders' agreements, FEFTA, merger control, AI/IT, data protection, IP, employment and crisis management, and works with overseas headquarters, foreign counsel, financial advisers and tax professionals throughout the transaction process.
37. Frequently Asked Questions
Q1. Is the SPA simply the agreement that transfers the shares?
No. It is the principal document allocating purchase-price risk, information risk, regulatory risk, pre-closing risk and post-closing liability between buyer and seller.
Q2. Which is better, completion accounts or a locked box?
Neither is inherently superior. Completion accounts provide a post-closing true-up, while a locked box provides greater price certainty but requires robust leakage protection. The appropriate mechanism depends on the target and transaction.
Q3. Can representations and warranties replace due diligence?
No. Contractual recovery may be limited by disclosure, caps, survival periods, knowledge qualifiers and seller credit risk. Due diligence and warranty protection should be designed together.
Q4. What should be done with a known risk identified in diligence?
Depending on the issue, the buyer may seek a specific indemnity, price adjustment, escrow, pre-closing remediation, a closing condition or post-closing covenant rather than relying only on a general warranty.
Q5. What is the difference between a basket and a de minimis threshold?
A de minimis threshold excludes individual small claims. A basket sets an aggregate threshold that claims must exceed before recovery becomes available, subject to whether the basket is deductible or tipping.
Q6. Is a MAC clause always an effective walk-away right?
No. Its practical scope depends on the drafting, exclusions, materiality standard and facts. Broad language does not automatically create a usable termination right.
Q7. Can the buyer control the target's business between signing and closing?
The buyer may negotiate interim covenants, but excessive pre-closing control can create gun-jumping or competition-law concerns. The target should remain independently managed until closing.
Q8. What is W&I insurance used for?
It can transfer certain warranty risks to an insurer and is common in private equity and auction transactions, but known risks and inadequately diligenced matters may be excluded.
Q9. Should a cross-border SPA be governed by Japanese law?
Not necessarily. The choice depends on the transaction, parties, assets and enforcement strategy. Mandatory Japanese regulatory rules continue to apply where relevant regardless of the chosen governing law.
Q10. If the SPA is bilingual, which language should prevail?
The agreement should state clearly which language controls in the event of inconsistency. Both versions should be drafted to reflect one agreed legal meaning.
38. About the Legal Update Series by Kenshiro Michishita
SAKURA Law Office publishes the Legal Update series through the profile of Managing Partner Kenshiro Michishita, addressing major issues affecting businesses and management in M&A, corporate law, international transactions, AI/IT, data protection, intellectual property, crisis management, employment, whistleblowing and Web3/financial regulation.
This fifteenth edition follows Legal Update No. 13 on acquiring a Japanese company and No. 14 on legal due diligence in Japanese M&A, and focuses on the definitive agreement that converts diligence findings and transaction economics into enforceable rights and obligations.
Future Legal Updates will address breaches of representations and warranties, litigation in Japan, recognition and enforcement of foreign judgments and international arbitration.
39. How SAKURA Law Office Can Assist with SPAs and M&A
SAKURA Law Office advises Japanese and foreign clients on the drafting, review and negotiation of share purchase agreements, asset purchase agreements, shareholders' agreements, joint venture agreements and other M&A documentation.
Our work includes purchase-price mechanisms, representations and warranties, disclosure, indemnification, liability limitations, conditions precedent, regulatory approvals, pre-closing covenants, W&I insurance coordination, closing mechanics and post-closing obligations.
For cross-border transactions, we work in English with overseas headquarters, General Counsel, M&A teams, investment committees, foreign counsel, financial advisers and accounting and tax professionals to integrate Japanese-law issues into the global transaction process.
40. Contact
For advice on SPAs, M&A, legal due diligence, FEFTA, merger control, cross-border transactions and other Japanese corporate or international legal matters, please contact SAKURA Law Office.
When contacting us, please indicate that your inquiry concerns an SPA or M&A transaction so that it can be directed promptly to the appropriate lawyer.
SAKURA Law Office
Kenshiro Michishita, Managing Partner
4F Ark Hills South Tower, 4-5 Roppongi 1-chome, Minato-ku, Tokyo 106-0032, Japan
Tel: +81-3-6910-0692
Written and supervised by
Kenshiro Michishita
Managing Partner, SAKURA Law Office
Principal References
Ministry of Economy, Trade and Industry - Guidelines for Corporate Takeovers (August 31, 2023)
Japan Fair Trade Commission - Merger Review
Ministry of Economy, Trade and Industry - M&A-related guidelines and publications
e-Gov / Ministry of Justice - Civil Code, Companies Act and related statutes
This article provides general information based on Japanese law, public materials and general M&A practice available as of September 24, 2026. It does not constitute legal advice concerning any specific transaction. The appropriate purchase-price mechanism, representations and warranties, disclosure regime, indemnification structure, liability limitations, regulatory conditions, restrictive covenants, governing law and dispute-resolution provisions depend on the target, transaction structure, buyer and seller attributes, listed or unlisted status, regulatory environment, due diligence findings and other facts. Certain METI materials concerning the interpretation of the Guidelines for Corporate Takeovers published in June 2026 were in draft form and subject to public comment as of the date of this article. Specific transactions should therefore be reviewed by reference to the laws, regulations, guidelines and official materials in effect at the relevant time.