Business Contracts Under Indonesian Law 2026
Contracts are essential for business, but they must comply with Indonesian law to be enforceable. Here's what you need to know.
Contract Requirements
Under Indonesian Civil Code (Article 1320), a valid contract requires:
- Consent - Mutual agreement, freely given
- Capacity - Parties legally able to contract
- Specific matter - Clear subject matter
- Lawful cause - Legal purpose
Missing any element can make contract void or voidable.
Contract Types
Common Business Contracts
Types you'll encounter
| Feature | Sales Agreement Buying/selling goods | Service Agreement Providing services | Employment Contract Hiring employees | Lease Agreement Property rental | Shareholder Agreement Company ownership |
|---|---|---|---|---|---|
| Form | Written recommended | Written recommended | Written required | Written required | Notarized deed |
| Language | Any (Indonesian preferred) | Any | Indonesian required | Indonesian preferred | Indonesian required |
| Stamp Duty | Yes | Yes | Yes | Yes | Yes |
| Notarization | Optional | Optional | No | For long-term | Required |
Language Requirements
Under Law 24/2009, contracts involving Indonesian parties should be in Indonesian.
Practical approach:
- Bilingual contracts (Indonesian + English)
- Indonesian version prevails if conflict
- Include clause stating which version governs
Ignoring this can create enforcement issues.
Best Practice
| Situation | Recommendation |
|---|---|
| Both parties Indonesian | Indonesian only |
| One party foreign | Bilingual |
| Both parties foreign | English OK (but Indonesian helps) |
| Employment contract | Must include Indonesian |
Essential Contract Elements
Contract Checklist
Elements to include
parties
intro
substance
termination
disputes
execution
Stamp Duty (Materai)
Materai (stamp duty) is required on:
- Contracts
- Legal documents
- Documents used as evidence in court
Current rate: IDR 10,000 per document
Without proper stamp duty, document may not be admissible as evidence.
How to Apply Stamp Duty
| Method | Notes |
|---|---|
| Physical stamp | Affixed and signed across |
| E-Meterai | Electronic stamp duty |
| Post-stamping | Can be done later if needed |
Dispute Resolution
Options
| Method | Pros | Cons |
|---|---|---|
| Negotiation | Fast, cheap | No enforcement |
| Mediation | Neutral third party | Still non-binding |
| Arbitration (BANI) | Binding, expert arbitrators | Costly |
| Court litigation | State enforcement | Slow, public |
Arbitration Clause
For significant commercial contracts:
- Include arbitration clause
- BANI (Indonesian) or SIAC (Singapore)
- Faster than courts
- Enforceable internationally
Example clause should specify:
- Institution (BANI, SIAC)
- Location
- Number of arbitrators
- Language
Governing Law
For Foreign Investment
| Situation | Governing Law |
|---|---|
| PT PMA contracts | Indonesian law typically |
| Cross-border deals | Can choose neutral law |
| Employment | Must be Indonesian law |
| Property | Must be Indonesian law |
Notarization Requirements
When Notary Required
| Document | Notarization |
|---|---|
| Company deed | Required |
| Share transfers | Required |
| Property transfer | Required |
| Power of attorney | Recommended |
| Standard commercial | Not required |
Indonesian notaries (PPAT/Notaris) have specific authority for certain documents.
Common Contract Mistakes
| Mistake | Risk |
|---|---|
| No Indonesian version | Enforcement issues |
| Missing stamp duty | Evidence problems |
| Vague terms | Interpretation disputes |
| Wrong capacity | Void contract |
| No dispute clause | Uncertain resolution |
| Overlooking regulations | Compliance issues |
Electronic Contracts
Under Law 11/2008 (ITE Law):
- Electronic contracts are valid
- Electronic signatures recognized
- Must meet certain requirements
- Some exceptions (land, inheritance)
Digital signing platforms can be used for most commercial contracts.
Force Majeure
Indonesian law recognizes force majeure (keadaan kahar):
- Events beyond control
- Make performance impossible
- Must be specifically defined in contract
Include clear force majeure clauses defining:
- What events qualify
- Notice requirements
- Effect on obligations
- Duration limits
Common Questions
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