If you have ever dealt with a cross-border legal matter involving Indonesia, whether it is inheritance, marriage, or estate distribution, you may have come across a document called an Affidavit of Foreign Law. It sounds formal and perhaps a little intimidating, but I want you to understand something: this document might be the single most important tool you can have when a foreign court needs to understand how Indonesian law applies to your family, your assets, or your loved ones after they are gone.
Let me walk you through what it is, why it matters, and what makes it so powerful under Indonesian law.
What Exactly Is an Affidavit of Foreign Law?
An Affidavit of Foreign Law is a sworn written statement, typically prepared by a licensed attorney in Indonesia, that explains Indonesian legal principles to a court or legal authority in another country. It is not a legal opinion. It is not a memo. It is a formal, sworn document that carries the weight of expert testimony. When a probate court in the United States, Australia, Singapore, or any other jurisdiction needs to know how Indonesian law governs inheritance, marriage, or property distribution, this affidavit is what provides the answer.
And here is the most important thing we can get from it: legal certainty. In a world where families are spread across borders, where an Indonesian national may pass away with assets in multiple countries, or where a foreign spouse needs to prove their rights under Indonesian law, the Affidavit of Foreign Law translates the complexity of our legal system into something a foreign court can understand and act upon. Without it, foreign courts are left guessing, and guessing in legal matters can destroy families.
The Civil Code: Last Will and Inheritance
Let me start with the Indonesian Civil Code, which governs inheritance for certain groups of Indonesian citizens, particularly those of non-Muslim backgrounds or those who choose to subject themselves to its provisions.
Under Article 830 of the Civil Code, inheritance opens at the moment of death. Article 832 establishes that those entitled to inherit are blood relatives and the surviving spouse. The Civil Code then distinguishes between two scenarios: inheritance by law (ab intestato), meaning without a will, and inheritance by testament (testamentair), meaning through a last will.
Articles 874 through 912 of the Civil Code regulate testamentary succession. Article 875 defines a last will (testament) as a document containing a person's disposition of their property after death, which can be revoked at any time. Meanwhile, Articles 913 through 929 establish the legitieme portie, or forced heirship portion, which protects certain heirs (children and descendants) from being completely disinherited.
Now, why does this matter for the Affidavit of Foreign Law? Imagine you are handling the estate of an Indonesian national who passed away in the United States, leaving behind property and bank accounts. The American probate court needs to know: Does Indonesia recognize this person's last will? Who are the legal heirs? Is there a forced heirship portion that overrides the will? The Affidavit of Foreign Law answers all of these questions by laying out the relevant Civil Code provisions in a sworn, authoritative statement that the foreign court can rely upon.
Without this affidavit, the foreign court might apply its own domestic rules, which could lead to a distribution that violates Indonesian law and harms the rightful heirs.
The 1974 Marriage Law: Establishing Who the Heirs Are
Inheritance does not exist in a vacuum. Before you can distribute an estate, you need to establish who qualifies as family. And that brings us to the Marriage Law.
Under Article 2 of Law Number 1 of 1974 on Marriage, a marriage is valid if performed according to the laws of each religion and belief. Article 34 establishes the mutual obligations between spouses, and Article 35 defines marital property, which as you and I discussed in our previous conversation, is divided into joint property and personal property.
Why is this relevant to the affidavit? Because a foreign court handling the estate of a deceased Indonesian national needs to know whether the surviving spouse is a lawful heir. The affidavit can confirm that the marriage was valid under Indonesian law (Article 2), establish the property regime (Articles 35 and 36), and explain what the surviving spouse is entitled to. If there was a prenuptial agreement under Article 29, the affidavit explains how that affects the estate division.
In mixed marriages, this becomes even more critical. A foreign court may not understand that Indonesia applies different rules depending on religion, ethnicity, or marital agreements. The Affidavit of Foreign Law bridges that gap.
The Islamic Compilation Law: Inheritance for Muslim Indonesians
For the majority of Indonesians who are Muslim, inheritance is governed by the Compilation of Islamic Law, specifically Book II on Inheritance (Articles 171 through 214).
Article 171 of the KHI defines key terms: an heir (ahli waris) is someone who, at the time of the deceased's death, has a blood or marital relationship with the deceased and is Muslim. Article 174 identifies the categories of heirs, distinguishing between heirs by blood relationship (fathers, mothers, daughters, sons, siblings) and heirs by marriage (widows or widowers). Article 176 establishes that a daughter receives half of what a son receives, following the Islamic faraidsystem.
Article 175 lays out the obligations that must be fulfilled from the estate before distribution: funeral expenses, debt settlement, and fulfillment of any will (wasiat), which under Article 195 cannot exceed one-third of the total estate.
Now, imagine a scenario where a Muslim Indonesian passes away while working abroad. Their family in Indonesia needs to claim the assets held in the foreign country. The foreign court or bank will ask: who are the legal heirs under Indonesian law? How much does each person get? Is there a will, and if so, what limits apply to it? The Affidavit of Foreign Law provides a comprehensive, sworn explanation of all these rules, specifying exactly who inherits and in what proportion according to the KHI.
Without this document, the foreign institution has no basis to release the assets to the correct beneficiaries.
Why This Document Is Irreplaceable
You and I can now see the common thread. Whether we are talking about the Civil Code, the Marriage Law, or the Islamic Compilation Law, the Affidavit of Foreign Law serves one supreme purpose: it gives foreign legal authorities a clear, sworn, and legally binding explanation of how Indonesian law applies to a specific situation. It transforms what would otherwise be confusion, delay, and potential injustice into clarity and action.
The most important thing we get from this affidavit is not just a piece of paper. It is the assurance that Indonesian law will be respected beyond our borders. It is the guarantee that your heirs will receive what they are entitled to, that your spouse's rights will be recognized, and that the wishes you expressed in your last will or the rules of faraid will be honored, even when the court making the decision sits thousands of kilometers away from Indonesia.
If you have family, assets, or legal ties that cross international borders, an Affidavit of Foreign Law is not optional. It is essential.
My name is Asep Wijaya, writing for Wijaya & Co. We orchestrate to assist you navigate. Thank you for reading my posts.