What permit does a child of an Indonesian citizen need?

Children of mixed Indonesian and foreign marriages sit in a genuinely unusual legal position, and the rules have a deadline attached that families miss.

The dual citizenship window

Indonesia does not generally permit dual nationality. There is one significant exception.

Under the 2006 citizenship law, a child of a mixed marriage between an Indonesian citizen and a foreign national may hold limited dual citizenship until the age of 18, plus a period afterwards — commonly described as up to three years — within which the child must declare which nationality they choose.

If no declaration is made within that window, the Indonesian citizenship is generally lost.

That is the deadline, and it catches families who assumed the position was permanent.

What to do about it

Register the child's dual status properly from the start. This involves reporting the birth and registering the child with the Indonesian authorities, including through the embassy if the birth occurred abroad.

Diarise the eighteenth birthday, and the declaration deadline that follows it. Put it somewhere that survives house moves and changes of email address.

Make the declaration deliberately, with advice, because the consequences run in both directions. Indonesian citizenship carries the right to hold Hak Milik, Indonesian freehold, which no foreigner can hold under any structure. Giving that up to retain a foreign nationality is a real decision with a real cost.

Why it matters for property

This is the part families do not connect.

An Indonesian citizen child can hold freehold. A foreign national child cannot, ever, under any arrangement.

So the declaration at eighteen is, among other things, a decision about whether that person can own land in Indonesia for the rest of their life.

For a family with property here, that is not a formality. It affects inheritance planning, the structure the family should hold assets in, and what happens when the Indonesian parent dies.

Inheritance

A foreign heir cannot inherit Hak Milik. Where a foreigner becomes entitled to Indonesian freehold through inheritance, disposal rules apply within a defined period, and failing to act within it causes the position to deteriorate.

A child who declared foreign nationality at eighteen is a foreign heir. A child who retained Indonesian citizenship is not.

Plan this in advance with an Indonesian will and advice, rather than discovering it during an estate administration in a language the surviving family may not read.

If the child is not yet in the dual window

Where a child does not hold Indonesian citizenship — for example where the Indonesian parent's position was not registered, or in a stepchild or adoptive situation — the routes are the family or dependant permits attached to a parent's KITAS or KITAP, or a spouse-sponsored family arrangement.

Those permit residence and education. They do not confer citizenship and they do not permit holding freehold.

The prenuptial agreement sits underneath all of this

If the parents are an Indonesian citizen and a foreign national, the marital property agreement determines whether the Indonesian parent can hold freehold cleanly at all.

Without one, Indonesian joint marital property rules give the foreign spouse an interest in assets acquired during the marriage, and because a foreigner cannot hold Hak Milik, that interest compromises the Indonesian spouse's position.

Since the Constitutional Court decision in 2015, this can be made after the wedding as well as before. Families frequently sort the children's paperwork and leave this, which is the wrong order — it determines whether there is property to pass on in the first place.