Having a Baby in Japan

Welcome to the Family section — and to the milestone that brings most cross-border families here first. Having a baby in Japan is, on the Japanese side, well-supported and surprisingly affordable. The part that catches Americans off guard is the US side: your baby’s US citizenship isn’t automatic, and the rule that decides it surprises long-settled expats every year. This guide walks both, with that US catch front and center.

Before the birth: registration and care

Once a doctor confirms the pregnancy, you file a 妊娠届ninshin todoke (pregnancy notification) at your city or ward office and are handed a 母子健康手帳boshi kenkō techō — the Maternal and Child Health Handbook — on the spot. It’s issued to anyone who files, regardless of nationality (it’s a statutory entitlement), and most municipalities stock it in around ten languages, so ask for an English edition. The handbook tracks the pregnancy, the birth, and the child’s checkups and vaccinations for years; bring it to every appointment.

With the handbook you’ll also get a booklet of 妊婦健診ninpu kenshin (prenatal checkup) vouchers — the nationally recommended schedule is about 14 checkups, and your municipality subsidizes them. The vouchers defray the cost rather than always eliminating it, and the exact amount varies by city, so expect some out-of-pocket top-ups.

What it costs — and the ¥500,000 that covers most of it

Here’s the thing to understand about cost: in Japan a normal (vaginal) delivery is not covered by health insurance — it’s billed as a private service, typically a few hundred thousand yen. (Complications like a C-section are covered, at the usual 30%.) What bridges the gap is a lump-sum benefit:

• The 出産育児一時金shussan ikuji ichijikin (childbirth lump-sum) pays ¥500,000 per child (raised from ¥420,000 in April 2023). It comes through your health insurer — National Health Insurance or an employer’s plan — and the usual direct-payment system sends it straight to the hospital, so you only settle the difference at the desk instead of fronting the whole bill.
• On top of that, the pregnancy and child-rearing support payments give roughly ¥100,000 (about ¥50,000 at pregnancy registration and ¥50,000 after birth), now a permanent program; some places (Tokyo, for one) add more.

One change to watch: the government has said it’s working toward making a standard normal birth free of out-of-pocket cost, with fiscal 2026 as a target for designing the system. As of 2026 it’s not yet in effect and the mechanism isn’t settled (rollout is widely expected later), so for now plan on paying the hospital and leaning on the ¥500,000.

Registering the birth: two systems, two clocks

A baby born to an American family in Japan has to be registered twice — once with Japan, once with the US — and the deadlines are very different.

Japan — within 14 days. File the 出生届shusshō todoke (birth notification) at city hall within 14 days of the birth. The form comes in two halves: the right half is the birth certificate filled in and signed by the doctor or midwife who delivered the baby. Bring it with your 母子手帳boshi techō. This is required even for a foreign or dual-national child born in Japan. One extra step for non-Japanese parents: if neither parent is Japanese, the child also needs a status of residence — you apply to Immigration within 30 days of the birth (see Registering at City Hall for the city-hall side of life).

The US — the bigger task. That’s the next section, and it’s where the real work is.

The US side: your baby’s citizenship (the part Americans miss)

This is the heart of the guide. A child born in Japan to a US-citizen parent may be a US citizen from birth — but it isn’t guaranteed, and you have to document it.

First, the catch: did you pass citizenship on?

US citizenship doesn’t transmit just because a parent is American. The parent must have banked enough physical presence in the United States before the baby was born (INA §301):

• One US-citizen parent + one non-citizen parent — the common case for an American married to a Japanese national. The US-citizen parent must have been physically present in the US for at least five years before the birth, at least two of them after age 14. (This applies to births since late 1986; time counts in the aggregate, and time spent in the US before you were a citizen counts too.)
• Two US-citizen parents — far easier: it’s enough that one parent simply had a residence in the US at some point before the birth.

The five-year rule is the one that bites. An American who left the US young — moved to Japan in their teens or early twenties, or was themselves raised abroad — may simply not have five qualifying years, and in that case the child does not acquire US citizenship at birth. If you’re anywhere near the line, two things help: only presence before the birth counts, so you can deliberately spend time in the US beforehand; and if you fall short, the child may still claim citizenship later through a US-citizen grandparent’s presence (a separate process, Form N-600K, that requires traveling to the US). This is worth sorting out before the baby arrives, not after.

The Consular Report of Birth Abroad (CRBA)

If the baby does acquire citizenship, the document that proves it is the Consular Report of Birth Abroad (CRBA) — the US record that your child was a citizen at birth. (It’s not a birth certificate; the Japanese 出生届shusshō todoke is the birth record. The CRBA is the citizenship record, and you’ll use it for the rest of the child’s life.) You apply through the US Embassy in Tokyo or a consulate: complete the eCRBA application online, pay the fee (currently around $100 — confirm the current amount), then attend an in-person appointment with the baby; generally both parents attend, and you must apply before the child turns 18.

The document that trips people up here is the proof of your US physical presence — bring the strong evidence: school/college transcripts and wage statements are the primary kind; utility and credit-card bills, tax forms, and old passports with entry stamps are secondary. Thin evidence can put the application on hold.

Passport and Social Security number

• US passport. You can apply for the baby’s first US passport in the same appointment as the CRBA. A child’s passport is always in person, the child must be present, and both parents must consent (an absent parent signs a notarized Form DS-3053). Infant photo rules are forgiving on open eyes but strict that no one else is in the frame.
• Social Security number. You apply for the SSN after the CRBA and passport are issued (it can no longer be done at the same appointment) — mail Form SS-5-FS with the originals to the embassy’s Federal Benefits Unit, or get the SSN once the family is in the US.

Born a dual citizen

If transmission is met and a parent is Japanese, your child is born both American and Japanese — and the US permits dual nationality (“U.S. law does not require a U.S. citizen to choose between U.S. citizenship and another (foreign) nationality”). Two practical points: a US citizen must enter and leave the US on the US passport (and Japan on the Japanese one — carry both); and Japan, separately, expects a dual national to “choose” a nationality by their early twenties — a Japanese-law question covered in US–Japan Dual Citizenship for Your Children.

After the birth: benefits — and a long US tail

Once the baby is registered, claim the ongoing support at city hall:

• 児童手当jidō teate (child allowance) — a monthly benefit, ¥15,000 for ages 0–2 and ¥10,000 from age 3 through high-school age (more for a third child). Since October 2024 the income cap is gone and it now runs to age 18. File a claim at your city/ward office.
• Child medical subsidy (こども医療費助成kodomo iryōhi josei) — municipal programs that make children’s medical care free or nearly free; the age ceiling and whether it’s free at the counter vary by city, so check yours.

And one US thread that starts at birth and never stops: a US-citizen child is a US taxpayer too. It rarely means tax owed while they’re young, but it can mean filing and even FBAR down the line (an account a grandparent opens in the child’s name counts — the ゆうちょyūcho one for the baby) — see Your Dual-Citizen Child’s US Taxes.

If you’re a SOFA family

Service members and their dependents usually deliver through the military health system (TRICARE and a military treatment facility) rather than the Japanese one. Contractors are often different — military-hospital access may be limited, space-available, or unavailable, so many contractors deliver at Japanese hospitals like everyone else in this guide, paying out of pocket and claiming it back through an employer or a private plan (check your own coverage). SOFA Status in Japan covers that healthcare split. Either way, the US citizenship side is identical — the CRBA, the transmission rule, the passport, and the SSN are federal and apply to every US-citizen parent the same way.

The short version

• File a 妊娠届ninshin todoke at city hall to get your 母子手帳boshi techō and subsidized 妊婦健診ninpu kenshin checkups — available to everyone, often in English.
• A normal delivery isn’t covered by insurance, but the ¥500,000 出産育児一時金shussan ikuji ichijikin (paid direct to the hospital) covers most of it, plus ~¥100,000 in support payments.
• Register the birth with Japan via the 出生届shusshō todoke within 14 days (and a status of residence within 30 days if both parents are non-Japanese).
• The US catch: citizenship isn’t automatic — one US-citizen parent needs 5 years’ US physical presence, 2 after age 14, to pass it on. Long-term expats can fall short.
• If the baby qualifies, get the CRBA, the US passport (same appointment), then the SSN — and the child is born a dual citizen (carry both passports).
• Afterward: 児童手当jidō teate and the child medical subsidy at city hall — and remember your dual-citizen child has a US tax thread for life.

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This guide is general information, not legal, tax, or medical advice. Citizenship-transmission rules, benefit amounts, fees, and the status of childbirth-cost reform all change and depend on your situation — verify against the sources below and with the US Embassy and your municipality before relying on any of it.