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Unlawful Act in Indonesia: Civil Liability in Commercial Disputes

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Unlawful act in Indonesia is a powerful legal basis in commercial disputes. It allows an injured party to claim compensation when another party causes loss through unlawful conduct. In Indonesian law, this concept is known as Perbuatan Melawan Hukum or PMH. For businesses, this issue is not merely academic. It often appears in shareholder disputes, failed transactions, fraud cases, asset diversion, and unfair business practices.

Business relationships rely on trust, contracts, and clear expectations. However, some disputes go beyond breach of contract. They may involve deception, abuse of rights, interference, or other unlawful conduct.

This is where an unlawful act in Indonesia becomes important. A claimant must prove that the opposing party acted unlawfully and caused measurable loss. Understanding this helps businesses choose the right legal strategy and avoid unnecessary litigation risks.

Key Takeaways

  • Unlawful act in Indonesia is mainly governed by Article 1365 of the Indonesian Civil Code.
  • A claimant must prove unlawful conduct, fault, loss, and causation.
  • Commercial disputes may involve both breach of contract and unlawful act claims.
  • Evidence is critical because Indonesian courts require clear legal and factual links.
  • Businesses should assess legal strategy before filing a civil lawsuit.

What Is an Unlawful Act in Indonesia?

An unlawful act is conduct that violates law, legal rights, duties, morality, prudence, or proper conduct in society. In Indonesian civil litigation, the concept is broad. It can apply to individuals, companies, directors, shareholders, business partners, and third parties. Therefore, it is often used in disputes where harmful conduct is not limited to a contractual breach.

The legal idea is simple but powerful. If one party causes loss to another through wrongful conduct, the injured party may seek compensation. However, the claimant must prove all legal elements. Courts will not grant compensation based only on anger, suspicion, or business disappointment. Evidence remains the foundation of every claim.

1. The Legal Basis Under Article 1365 of the Indonesian Civil Code

The main legal basis for unlawful act in Indonesia is Article 1365 of the Indonesian Civil Code. This provision states that every unlawful act causing damage to another person obliges the person at fault to compensate the loss. This rule is the foundation of civil liability for tort-like claims under Indonesian law.

In practice, Article 1365 is often used in commercial lawsuits. It may support claims involving fraudulent inducement, abuse of authority, unlawful interference, and corporate misconduct. Still, the provision is not automatic. A claimant must connect the act, fault, loss, and causation. Without that connection, the claim may fail.

2. How Indonesian Courts View Unlawful Act (Perbuatan Melawan Hukum – PMH)

Indonesian courts generally assess PMH through several core elements. These include unlawful conduct, fault, loss, and causal relationship. Courts will examine whether the defendant’s conduct legally caused the claimant’s damage. The court will also review whether the claimant can prove the amount and nature of loss.

In business disputes, judges often look at documents, commercial behavior, correspondence, and the parties’ legal relationship. A strong claim usually tells a clear story. It shows what the defendant did, why it was unlawful, how it caused loss, and what remedy is requested.

Unlawful Act vs Breach of Contract in Indonesia

Many commercial disputes begin with a contract. One party may fail to pay, fail to deliver goods, or fail to perform services. This situation usually creates a breach of contract claim. Under Indonesian law, breach of contract is commonly known as wanprestasi.

However, not every harmful act is only breach of contract. Some conduct may also violate broader legal duties. For example, a party may enter a contract using false information. A shareholder may secretly transfer company assets. A distributor may intentionally damage another party’s market reputation. These facts may support an unlawful act in Indonesia claim.

1. Why the Distinction Matters for Commercial Claims

The distinction matters because legal consequences, evidence, and remedies may differ. A breach of contract claim usually focuses on contractual obligations. The claimant must show that a valid agreement exists and that the defendant failed to perform it.

Meanwhile, an unlawful act claim focuses on wrongful conduct and resulting loss. It may involve parties outside the contract. This can be useful when the harmful party is not a contracting party. It may also help when the conduct involves bad faith, fraud, or abuse of legal rights.

2. When a Contract Dispute May Also Become an Unlawful Act Claim

A contract dispute may become an unlawful act claim when the defendant’s conduct exceeds ordinary non-performance. For example, a party may intentionally mislead another party before signing. A company may conceal important facts during a transaction. A business partner may misuse confidential information for personal gain.

However, claimants should be careful. Indonesian courts may reject vague attempts to convert every breach into PMH. The statement of claim must explain why the conduct is unlawful beyond contractual default. The legal theory must be precise, consistent, and supported by evidence.

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Key Elements of Civil Liability for Unlawful Act in Indonesia

To succeed in an unlawful act in Indonesia claim, the claimant must prove specific elements. These elements work together. If one element is missing, the claim may become weak. Therefore, legal preparation should begin before filing a lawsuit.

Businesses should not only collect documents. They should organize the facts into a legal structure. The claim must answer four questions. What was the unlawful conduct? Who was at fault? What loss occurred? How did the conduct cause the loss?

1. Unlawful Conduct

The first element is unlawful conduct. This may include conduct violating written law, another person’s rights, legal obligations, morality, or propriety. In business disputes, unlawful conduct may appear through fraud, misrepresentation, intimidation, asset diversion, or unauthorized use of company resources.

The claimant must describe the act clearly. General allegations are usually insufficient. A strong claim should identify dates, actions, documents, persons involved, and the legal basis. This makes the case easier for the court to understand.

2. Fault or Negligence

The second element is fault. Fault may arise from intention or negligence. Intentional conduct is easier to understand. For example, a person may knowingly provide false information to secure payment. Negligence may involve failure to act with reasonable care.

In commercial disputes, proving fault often requires context. The court may ask whether the defendant knew the risk. It may also review whether the defendant ignored clear duties. Therefore, internal emails, minutes of meetings, warnings, and transaction records may become important evidence.

3. Actual Loss or Damage

The third element is loss. A claimant must show that damage actually occurred. This may include unpaid amounts, lost assets, additional costs, reduced business value, or reputational harm. In some cases, the claimant may also request immaterial damages.

However, courts usually expect a reasonable basis for calculating damages. The claimant should avoid exaggerated numbers. Instead, the claim should be supported by invoices, bank records, valuation reports, expert calculations, or financial statements. Credibility matters in litigation.

4. Causation Between Conduct and Loss

The fourth element is causation. The claimant must prove that the defendant’s unlawful act caused the loss. This element is often difficult in commercial disputes. Business losses may arise from many factors, including market conditions, management decisions, and third-party actions.

Therefore, the claimant must build a logical chain. The chain should show how the defendant’s conduct directly or foreseeably caused damage. Without causation, even wrongful conduct may not result in compensation.

Common Examples of Unlawful Acts in Commercial Disputes

Commercial disputes can involve many forms of wrongful conduct. Some cases are simple. Others involve layered transactions, multiple companies, nominee structures, or hidden arrangements. For that reason, businesses need careful legal analysis before choosing a claim.

An unlawful act in Indonesia claim may be relevant where the defendant’s conduct harms business rights or commercial interests. It is especially useful when the wrongful act affects ownership, assets, reputation, or the ability to conduct business.

1. Fraud, Misrepresentation, and Bad Faith Negotiation

Fraud and misrepresentation often appear in investment and transaction disputes. A party may provide false financial information. A seller may conceal liabilities. A business partner may promise licenses, assets, or approvals that do not exist.

Bad faith negotiation may also become relevant. However, the claimant must prove more than failed negotiation. The claimant should show deception, reliance, and resulting loss. Evidence may include draft agreements, emails, chat records, payment confirmations, and witness testimony.

2. Asset Diversion, Corporate Abuse, and Interference With Business Rights

Asset diversion can create serious commercial harm. It may involve moving company funds, transferring assets to related parties, or using corporate opportunities for personal benefit. In shareholder disputes, this issue may become sensitive and urgent.

Corporate abuse may also involve directors, commissioners, shareholders, or affiliates. Depending on the facts, the injured party may pursue civil claims, corporate remedies, or other legal action. The right strategy depends on the relationship between the parties and available evidence.

3. Unfair Competition and Business Reputation Damage

Business reputation has real economic value. False statements, unlawful interference, and misleading market communication may damage a company’s relationships. These actions may affect customers, suppliers, investors, and lenders.

In such cases, the claimant must prove the harmful statement or conduct. The claimant should also show its business impact. Screenshots, public announcements, customer cancellations, and witness statements can be useful. However, evidence must be obtained lawfully.

Civil Remedies Available for Unlawful Act Claims in Indonesia

Remedies in PMH cases usually focus on compensation. However, commercial cases may require broader relief. A claimant may seek material damages, immaterial damages, declaratory relief, or specific court orders.

The requested remedy must match the legal basis. It must also be realistic. Courts are more likely to consider claims that are clear, supported, and proportionate. A well-drafted petitum is essential in Indonesian civil litigation.

1. Compensation for Material Losses

Material losses are financial losses that can be calculated. They may include unpaid money, replacement costs, lost goods, repair costs, or business interruption losses. These losses should be supported by documents.

In commercial disputes, expert assessment may help. For example, a valuation expert can calculate asset loss. An accountant can review financial impact. This evidence can strengthen the claim and reduce challenges from the defendant.

2. Immaterial Damages and Reputational Harm

Immaterial damages may involve non-financial harm, including reputational damage or business distress. However, these claims require careful presentation. Courts may be cautious when the amount is speculative or excessive.

Therefore, businesses should connect reputational harm to real commercial consequences. For example, loss of customers, cancelled contracts, investor concerns, or supplier withdrawal may support the claim. The goal is to make the damage understandable and measurable.

3. Injunctions, Asset Preservation, and Court Orders

In some disputes, compensation alone is not enough. A claimant may need urgent measures to protect assets or prevent further harm. Depending on the case, legal strategy may include requests related to asset preservation or prohibitory relief.

These remedies require strong legal grounds. The claimant must show urgency, risk, and connection with the claim. Poorly prepared requests may be rejected. Therefore, timing and evidence are critical.

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Evidence Needed to Prove an Unlawful Act in Indonesia

Evidence is the heart of civil litigation. A good legal theory will fail without proof. In commercial cases, evidence often comes from documents, correspondence, financial records, and witness statements.

Businesses should preserve evidence early. They should avoid deleting messages, altering documents, or relying only on verbal statements. A clean evidence trail can make the difference between a strong case and a risky lawsuit.

1. Contracts, Correspondence, and Digital Evidence

Contracts help explain the parties’ legal relationship. However, correspondence often reveals conduct. Emails, WhatsApp messages, meeting minutes, purchase orders, invoices, and notices may show intent, knowledge, and bad faith.

Digital evidence should be organized carefully. The claimant should preserve original files when possible. Screenshots should be supported by metadata or other corroborating evidence. In high-value disputes, forensic review may be considered.

2. Financial Records and Expert Assessment

Financial records help prove loss. These may include bank statements, tax invoices, payment receipts, accounting ledgers, audit reports, and valuation documents. Without financial proof, compensation claims may look speculative.

Expert assessment may be useful in complex cases. It can explain loss calculation, asset valuation, or business impact. This is especially important where the dispute involves construction projects, investments, corporate valuation, or lost profits.

Strategic Considerations Before Filing a Civil Lawsuit

Filing a lawsuit is a serious step. It may protect rights, but it also takes time, cost, and management attention. Therefore, companies should assess their claim before going to court.

A strategic review should examine legal basis, evidence, defendant identity, jurisdiction, enforceability, and settlement prospects. This review helps avoid weak claims. It also improves negotiation leverage before litigation begins.

1. Legal Standing, Jurisdiction, and Defendant Identification

The claimant must have legal standing. The defendant must also be properly identified. This sounds simple, but business disputes often involve several entities, affiliates, directors, or agents. Naming the wrong party can create procedural problems.

Jurisdiction is also important. The court must have authority to examine the dispute. The claimant should review domicile, contractual forum clauses, object location, and relevant procedural rules. Careful planning reduces unnecessary objections.

2. Settlement, Warning Letter, and Litigation Strategy

A warning letter can help clarify the dispute. It may also create a record of demand and response. In many business disputes, a formal warning letter encourages settlement before litigation.

However, the warning letter should be drafted carefully. It should not contain careless threats or weak legal arguments. A strong letter presents facts, legal basis, claim amount, deadline, and consequences. It should support future litigation if settlement fails.

Practical Commentary from Kusuma & Partners Law Firm

In our experience, many businesses wait too long before seeking legal advice. They often contact lawyers after documents are missing, assets have moved, or communications have become hostile. This makes recovery harder.

For an unlawful act in Indonesia claim, early legal mapping is essential. Businesses should identify the wrongful act, collect evidence, calculate losses, and choose the correct defendant. They should also decide whether to pursue settlement, civil litigation, criminal reporting, arbitration, or parallel strategy.

Commercial disputes are not only about winning arguments. They are about protecting value. A well-prepared claim can pressure the opposing party, preserve leverage, and improve recovery prospects. Conversely, a weak claim may waste resources and damage negotiation position.

Conclusion

Unlawful act in Indonesia is a key legal concept for civil liability in commercial disputes. It allows injured parties to seek compensation when wrongful conduct causes loss. However, a successful claim requires more than frustration or business disappointment. The claimant must prove unlawful conduct, fault, loss, and causation.

For companies, investors, and business owners, the best approach is strategic preparation. Review the facts, secure evidence, calculate losses, and assess the most effective legal route. With proper legal guidance, an unlawful act claim can become a strong tool for business protection and dispute recovery.

How We Can Help

If your company is facing fraud, asset diversion, business interference, or serious commercial misconduct, Kusuma & Partners Law Firm can assist. Contact us for clear legal strategy, evidence review, and dispute resolution support in Indonesia.

Yes. An unlawful act claim does not always require a contract between the parties. This is one key difference between unlawful act in Indonesia and breach of contract.

It depends on the facts and strategic objective. If the main goal is compensation, a civil lawsuit may be more suitable. If the conduct involves fraud, forgery, or embezzlement, a police report may also be considered.

Yes. Nominee arrangements may create serious legal and commercial risks in Indonesia. If one party abuses a nominee structure, transfers shares unlawfully, or denies beneficial ownership arrangements, civil claims may arise. However, nominee structures can also create enforceability issues. Businesses should seek legal advice before relying on nominee arrangements in Indonesia.

Yes. PMH claims are common in land and property disputes. Examples include unlawful occupation, fraudulent sale, double sale, forged documents, or interference with ownership rights.

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