How do you register your child's birth if they're born in Bali?

Right after your baby is born, the hospital or clinic will give you a birth letter (surat keterangan lahir). Take that letter, your passports, your marriage certificate (translated into Indonesian and legalized if you married outside Indonesia), and your KITAS or visa documents to the Dukcapil, the local civil registry office for the regency where the birth happened. They'll issue an Akta Kelahiran, the Indonesian birth certificate. Indonesian law asks for this within 60 days of birth. Miss that window and it's still doable, but you'll need an extra letter or court statement explaining the delay, so it's worth getting to Dukcapil quickly.

The Akta Kelahiran covers you locally, but it doesn't make your child an Indonesian citizen, Indonesia follows citizenship by descent, not by birthplace. Separately, contact your home country's embassy or consulate to register the birth and apply for your child's passport. Bring the Akta Kelahiran (with a certified translation if asked for), your marriage certificate, and both parents' passports. If you and your partner hold different nationalities, check both countries' rules, since some require the birth to be registered within a set period to pass on citizenship automatically. Start this step as soon as the Akta Kelahiran is in hand, since passport processing can take a few weeks.

Once your baby has a passport, head to the immigration office (imigrasi) to sort out their stay permit. A baby born here doesn't automatically inherit a parent's visa status, so they need their own permit, typically a dependent KITAS tied to a parent who already holds one. Bring the Akta Kelahiran, the child's new passport, and the sponsoring parent's KITAS and passport. If you're in Bali on a visa that doesn't allow sponsoring a dependent, ask immigration what the options are for your situation before the baby's entry status runs out. Working through hospital paperwork, Dukcapil, the embassy, and immigration in that order keeps each step from stalling the next.