Foreign Investor Discovers Problems After Closing an M&A Deal in Turkey: What Can Be Claimed? (2026 Updated Guide)

A foreign investor discovers hidden liabilities or contractual problems after closing an M&A transaction in Turkey. Learn about warranty, indemnity, fraud, price adjustment, damages, escrow and post-closing remedies.

A foreign investor may complete the acquisition of a Turkish company believing that the target’s financial, tax, employment, regulatory and contractual position has been properly disclosed, only to discover significant problems after closing. Undisclosed tax liabilities, inaccurate financial statements, hidden litigation, related-party transactions, unpaid employee claims, regulatory violations, customer losses, unauthorized payments or undisclosed debt can fundamentally change the economics of the transaction. The investor’s remedies depend primarily on the share purchase agreement, representations and warranties, indemnification provisions, disclosure materials, applicable Turkish law and the nature of the newly discovered problem. Immediate preservation of evidence and contractual deadlines is particularly important because post-closing claims frequently contain strict notification procedures.

What Problems Are Commonly Discovered After Closing?

Post-closing disputes can involve undisclosed debt, tax assessments, customs liabilities, employment claims, social-security exposure, pending litigation, regulatory investigations, environmental liabilities, intellectual-property problems, inaccurate inventory, uncollectible receivables, unauthorized related-party payments or material customer and supplier issues.

The first task is to classify the problem correctly rather than immediately accusing the seller of fraud.

Start With the Share Purchase Agreement

The SPA is usually the central document in a post-closing dispute. Review the representations and warranties, specific indemnities, limitations of liability, disclosure mechanism, claim-notification procedure, survival periods, thresholds, baskets, caps, escrow arrangements and dispute-resolution clause.

A commercially serious problem does not automatically produce a successful legal claim if the contractual mechanism is ignored.

Review the Disclosure Letter

The seller may argue that the relevant matter was disclosed before closing. The investor should therefore compare the newly discovered issue with the disclosure letter, data-room materials and other documents contractually incorporated into the disclosure process.

The question is not simply whether some information existed somewhere. The contractual standard governing disclosure must be examined.

Was the Seller’s Representation Incorrect?

Suppose the SPA stated that the target had no material undisclosed liabilities, while the investor later discovers substantial debt existing before closing. That may create a warranty or representation claim depending on the agreement.

The investor should identify the exact contractual statement allegedly breached and connect it to the facts existing at the relevant contractual date.

Representations and Indemnities Are Different

A general warranty claim should be distinguished from a specific indemnity. The parties may have allocated a known risk—such as an ongoing tax audit—through a separate indemnification clause.

Specific indemnities can have different thresholds, caps and claim periods from general warranty claims.

Check the Claim Notification Deadline Immediately

Many SPAs require the buyer to notify the seller of claims within specified periods.

The notice may need to identify the breached provision, factual basis, estimated loss and supporting information.

Do not postpone formal notice merely because the parties are discussing the problem commercially.

Follow the Contractual Notice Procedure

Review how notices must be delivered and to whom. A casual message to the seller’s former CEO may not necessarily satisfy the SPA’s formal notice requirements.

Preserve evidence of delivery.

Hidden Tax Liabilities

A tax assessment concerning a pre-closing period is a common post-acquisition problem. Determine whether the SPA contains tax warranties, a tax covenant or specific indemnification provisions.

The buyer should also comply with public-law deadlines for challenging the tax assessment. A claim against the seller does not replace the target company’s obligation to defend itself against the tax authority.

Customs Liabilities Can Surface Years Later

Post-clearance audits can reveal historical customs valuation, classification, origin or import-tax issues relating to periods before the acquisition.

The investor should separate the company’s liability toward Customs from its contractual recovery rights against the seller.

Employment Liabilities

The target may face unpaid overtime, severance, employee misclassification, social-security liabilities or litigation that was not properly reflected during due diligence.

Review employment warranties, employee schedules and disclosure materials.

Undisclosed Litigation

If litigation existed before closing but was not disclosed, determine whether the seller warranted that all material proceedings had been disclosed.

Obtain the complete court or administrative file rather than relying on management summaries.

Regulatory Investigations

A foreign investor may discover that the target was already subject to a regulatory inquiry, licensing problem or administrative investigation before closing.

The timing of the underlying conduct can be crucial when allocating responsibility between buyer and seller.

Inaccurate Financial Statements

If the company’s revenue, EBITDA, debt, receivables or inventory was materially overstated, the buyer should determine whether financial-statement warranties were breached.

Accounting experts may be necessary to reconstruct the company’s actual financial position at closing.

Hidden Debt and Off-Balance-Sheet Liabilities

Guarantees, shareholder loans, factoring arrangements, undisclosed leases and commitments may substantially affect the value of the acquired business.

Obtain bank confirmations, accounting ledgers and contractual records.

Unauthorized Guarantees

A particularly serious issue arises where the target guaranteed obligations of shareholders, affiliates or third parties without proper disclosure.

Review corporate approvals, bank documents and the authority of the individuals who signed the guarantee.

Related-Party Transactions

After closing, the buyer may discover that assets, cash or business opportunities were transferred to companies connected with the former shareholders.

Trace the transactions carefully and determine whether they occurred before or after closing.

Asset Stripping Before Closing

If valuable assets were transferred out of the target shortly before completion, the investor should examine the SPA, corporate records, bank movements and underlying contracts.

Depending on the facts, contractual, corporate and potentially other legal remedies may need to be considered.

Customer or Supplier Information May Have Been Misrepresented

A seller may have described major contracts as secure even though termination notices, pricing disputes or serious customer complaints existed before closing.

Preserve emails, meeting minutes and customer correspondence showing what management knew before completion.

Material Contract Problems

Review change-of-control clauses, termination rights, exclusivity obligations and contractual defaults.

The buyer may discover that an important contract required third-party consent that was never obtained.

Intellectual Property Problems

A technology or brand-driven acquisition can lose substantial value if the target does not actually own critical trademarks, software, patents or other intellectual property.

Review ownership chains, employee-created works, licensing agreements and registrations.

Data Protection and Cybersecurity Liabilities

Undisclosed data breaches, inadequate cybersecurity or regulatory exposure can create significant post-closing costs.

Determine when the underlying incident occurred and when management became aware of it.

Was Due Diligence Enough to Reveal the Problem?

The seller may argue that the buyer could have discovered the issue during due diligence.

Whether that defense succeeds depends heavily on the SPA’s wording, disclosure standards, buyer-knowledge provisions and circumstances of the transaction.

Buyer Knowledge Clauses Matter

Some agreements restrict claims where the buyer had actual or deemed knowledge of the relevant facts.

Identify precisely how “knowledge” is defined and whose knowledge is attributed to the buyer.

Data-Room Disclosure Can Become a Major Dispute

Sellers may argue that uploading a document into the data room constituted disclosure.

The buyer should examine whether the SPA treated general data-room disclosure as sufficient or required fair, specific or otherwise contractually defined disclosure.

Fraud or Intentional Concealment Changes the Analysis

If evidence suggests deliberate concealment rather than an ordinary warranty breach, the investor should preserve communications and original electronic records immediately.

Intentional misconduct can affect contractual limitation defenses and may create additional legal consequences depending on the facts.

Do Not Make Fraud Allegations Without Evidence

A discrepancy in financial information does not automatically prove fraud.

Establish who knew what, when they knew it and what was communicated to the buyer.

Can the Investor Claim Damages?

Potentially. The available damages depend on the contractual and legal basis of the claim.

The investor should establish breach, loss and causation with reliable financial evidence.

How Is Loss Calculated?

Loss may be measured differently depending on the claim. The issue may involve a direct liability paid by the target, remediation costs or a reduction in the value of the shares acquired.

Valuation disputes often require expert analysis.

Purchase Price Overpayment

A buyer may argue that it paid more for the company because financial or operational information was inaccurate.

Proving this claim can require analysis of the valuation methodology used in the transaction.

EBITDA Misrepresentation

Where the purchase price was based on an EBITDA multiple, overstated EBITDA can materially affect valuation.

The investor should preserve the financial model and negotiation documents showing how price was determined.

Purchase Price Adjustment Disputes

Some SPAs use completion accounts, locked-box mechanisms or other price-adjustment structures.

A newly discovered accounting issue may therefore create a purchase-price claim separate from a warranty claim.

Locked-Box Leakage Claims

Under a locked-box structure, unauthorized transfers of value to sellers or connected persons between the locked-box date and closing may constitute prohibited leakage if covered by the agreement.

Review bank transactions and related-party payments carefully.

Earn-Out Manipulation

Where part of the consideration depends on post-closing performance, disputes may arise over accounting policies, customer allocation or conduct affecting the earn-out.

The SPA’s earn-out provisions should be analyzed separately from ordinary warranty claims.

Escrow and Holdback Rights

If part of the purchase price remains in escrow or has been retained, determine whether the discovered claim permits the buyer to prevent release.

Escrow deadlines can be as important as the underlying claim deadline.

Can the Buyer Withhold Unpaid Purchase Price?

Do not assume that discovery of a claim automatically permits unilateral withholding of future installments.

The SPA and applicable law should be reviewed before suspending payment.

Third-Party Claims Require Special Handling

Tax authorities, employees, customers or regulators may assert claims against the target after closing concerning pre-closing conduct.

The SPA may require the buyer to notify the seller and may regulate who controls the defense or settlement.

Do Not Settle a Third-Party Claim Too Quickly

A settlement made without complying with the SPA may create disputes over indemnification.

Protect the company’s immediate legal position while also following contractual procedures governing seller participation.

Preserve Electronic Evidence

Emails, accounting records, messaging applications, board materials and data-room documents can become central evidence.

Implement a litigation hold where appropriate and avoid routine deletion of potentially relevant records.

Preserve the Data Room

Maintain the final data-room index and the documents available before signing and closing.

A later dispute may turn on exactly what information was disclosed at a particular date.

Interview Key Employees Early

Employees who remained with the target may know when liabilities arose, who approved transactions and what former shareholders knew.

Record relevant facts before personnel leave or memories deteriorate.

Review Board and Shareholder Resolutions

Corporate records may reveal undisclosed guarantees, related-party transfers, asset disposals or unusual payments.

Compare resolutions with accounting and banking records.

Trace Bank Transactions

For suspected leakage or asset diversion, bank statements can provide critical evidence.

Identify the recipient, amount, date, authorization and commercial basis of each disputed payment.

Consider Interim Measures

If there is a serious risk that the seller may dissipate assets or evidence may disappear, available interim judicial measures should be evaluated promptly.

The requirements depend on the particular claim and circumstances.

Arbitration or Turkish Courts?

The SPA’s dispute-resolution clause controls the procedural strategy in many transactions.

A contract may provide for Turkish courts, domestic arbitration or international arbitration. The buyer should identify the forum before commencing proceedings.

Governing Law Must Also Be Checked

A Turkish target does not necessarily mean every SPA dispute is governed exclusively by Turkish substantive law.

The governing-law clause should be reviewed together with mandatory Turkish rules that may remain relevant.

Multiple Claims May Exist Simultaneously

One problem can create a warranty claim, specific indemnity claim, purchase-price adjustment dispute and third-party liability at the same time.

These claims should be mapped separately because their deadlines and financial limitations may differ.

Caps, Baskets and De Minimis Thresholds

General warranty claims may be subject to contractual thresholds.

Calculate whether individual claims or aggregated claims satisfy the applicable basket.

Fundamental Warranties May Have Different Limits

Title to shares, authority, capitalization and similar fundamental matters may be subject to different liability caps or survival periods.

Do not apply the general warranty limitations automatically.

Seller Liability May Be Several or Joint

Where multiple sellers exist, determine whether each seller is responsible only for its proportion of the purchase price or whether broader liability was agreed.

This can materially affect recovery strategy.

Warranty and Indemnity Insurance

If the transaction includes warranty and indemnity insurance, review notification requirements immediately.

The insurer’s deadlines and procedures may differ from those in the SPA.

Mitigation Is Important

Once the buyer discovers a problem, it should take commercially reasonable steps to prevent unnecessary escalation of losses.

Document those measures.

Review the Entire Target Group

A problem discovered in one subsidiary may indicate broader issues elsewhere in the acquired group.

Conduct a focused post-closing review without assuming that every entity is affected.

Immediate Post-Closing Claim Strategy

When a foreign investor discovers a significant problem after completing an acquisition in Turkey, the investor should immediately identify the relevant SPA representation or indemnity, review the disclosure letter and data room, protect contractual notice deadlines, preserve electronic and financial evidence, quantify the potential loss, investigate whether the issue existed before closing, notify insurers where relevant, comply with third-party claim procedures and evaluate interim measures, litigation or arbitration.

Frequently Asked Questions

Can a foreign investor claim compensation for undisclosed liabilities after acquiring a Turkish company?

Potentially. The claim depends on the SPA, representations, warranties, indemnities, disclosure and applicable law.

What if the liability relates to a period before closing but is discovered afterward?

Pre-closing origin can be highly important, particularly where the SPA allocates historical liabilities to the seller through warranties or indemnities.

Can the seller defend the claim by saying the information was in the data room?

Potentially, depending on the contractual disclosure standard and the specific information made available.

What if the buyer could have discovered the problem during due diligence?

The effect depends on buyer-knowledge provisions, disclosure clauses and the circumstances of the transaction.

Can hidden tax or customs liabilities be claimed from the seller?

Potentially, where the SPA allocates those liabilities to the seller. The target must still protect its rights against the relevant public authority separately.

Can the buyer recover the amount by using escrow funds?

Potentially, if the escrow agreement and SPA permit the claim and the required notification procedures are followed.

Can the investor stop paying deferred purchase-price installments?

Not automatically. The contractual and legal basis for withholding payment should be examined first.

What if the seller deliberately concealed the problem?

Intentional concealment can materially change the legal analysis. Evidence of knowledge and concealment should be preserved immediately.

Can post-closing M&A disputes be resolved through arbitration?

Yes, where the SPA contains a valid arbitration agreement covering the dispute.

What should the investor do first?

Protect the claim deadline before completing a lengthy internal investigation. Identify the potentially breached SPA provision, preserve the evidence and send any required contractual notice within the applicable period while the financial and legal investigation continues.

Client-Focused Legal Support for Post-Closing M&A Disputes

Fırat Fesih Kaya Law Office assists foreign investors, international companies, shareholders and acquiring businesses in post-closing M&A disputes involving hidden liabilities, warranty breaches, indemnification claims, purchase-price adjustments, undisclosed litigation, tax and customs exposure, related-party transactions, escrow disputes and seller misconduct. Lawyer Fırat Fesih Kaya provides legal assistance in reviewing transaction documents, preserving post-closing claims, coordinating financial and corporate evidence, pursuing interim protection and representing investors in litigation and arbitration arising from acquisitions in Turkey.

Phone: +90 312 434 22 22

Mobile / WhatsApp: +90 532 769 22 22

Email: info@firatfesihkaya.av.tr

Address: Mevlana Boulevard No:221, Yıldırım Tower, Office No:148, 06520 Balgat, Çankaya, Ankara, Turkey