Child Fares on Japanese Trains and Buses: Age Rules and IC Cards

Does my child ride free, pay child fare, or pay adult fare?#

Start with age, then check whether the child is accompanied and whether they need their own reserved seat. The table below reflects the common JR and Tokyo Metro rules as of August 2026. Other railways and buses may use similar bands but can set their own details.

Child’s age	Usual treatment when accompanied	When a ticket is still needed
Under 1	Infant; usually free	A separately reserved seat or operator-specific service
1–5	Toddler/preschooler; up to two free per fare-paying adult or child	Travelling alone, a third child beyond the free limit, or a separately reserved seat
6–11	Child fare	Always needs a ticket or child IC card for the trip
12 and over	Adult fare	Pays the same fare category as an adult

This answers the common question about a five-year-old: a five-year-old usually rides free while accompanied, but free does not mean they can claim a reserved seat. It also does not mean one adult can take an unlimited number of preschoolers free.

Age boundaries can be affected by Japan’s school-year definitions. A child near their sixth or twelfth birthday can therefore be handled differently from a simple birthday-only rule. Bring the child’s passport and ask staff before buying if the child is close to a boundary. Do not guess at the gate.

When do children aged 1–5 need a ticket?#

The exceptions matter more than the basic “under six is free” phrase. Use this decision table before boarding.

Situation	Fare treatment under the common JR/Metro rule
One adult with one or two children aged 1–5 on a local train	The children usually ride free
One adult with three children aged 1–5	Two usually ride free; one pays child fare
A five-year-old travels without a fare-paying adult or child	Child fare is required
A preschooler occupies their own Shinkansen reserved seat	The required child tickets must be purchased
A baby stays on an adult’s lap in an ordinary reserved seat	Usually no separate child ticket, subject to the operator and service rules
A child uses a special sightseeing train, sleeper, or package	Check the product rules; special charges can differ

“Accompanied by a child” in the official rule can sound strange in English. It means a fare-paying passenger in the child-fare age band can also accompany up to the stated number of younger children. For a family trip, however, the practical case is normally one adult travelling with one or two preschoolers.

For Shinkansen and limited express travel, decide whether the preschooler will use a seat before you book. If you need a guaranteed seat for the child, include them as a child passenger in the booking. Do not reserve seats only for the adults and assume an empty neighbouring seat may be used.

How much is the child fare?#

On JR, the child basic fare and many eligible express charges are generally calculated at half the adult amount, followed by JR’s rounding rules. That means the price shown by the ticket machine is the answer; multiplying the adult fare by 0.5 may leave a small difference.

Ticket or payment type	What to expect as of August 2026
Ordinary JR paper ticket	Child amount is generally based on half the adult fare, then rounded under JR rules
Child IC card on local transit	The gate or fare box deducts the operator’s child IC fare
Adult IC card used by a child	Adult fare is deducted; it does not automatically know the user’s age
Shinkansen reserved seat	Child basic-fare and limited-express components are needed for the child’s seat
City or local bus	The operator posts its own cash and IC child fares
Tourist pass	Read that pass’s age band; it may not copy ordinary ticket rules exactly

Bus fares are especially local. One city may have a flat fare, while another issues a numbered ticket and calculates the fare by distance. Some buses ask you to board at the rear and pay when leaving; others collect the fare when you board. The age category can be familiar while the payment process is different.

How do I get and use a child IC card?#

A child IC card deducts child fare automatically. JR East’s English Suica information distinguishes adult and child cards by the fare deducted. The purchase amount itself can be the same; the registered age category is what changes the transport fare.

Follow this practical sequence:

1. Bring the child’s passport. Staff need proof of age to issue a child card.
2. Use a staffed sales location. Ask for a child Suica, PASMO, or the child visitor card currently available in that area. Sales locations and stock can change.
3. Give every traveller their own card or ticket. One card cannot carry an adult and child through an automatic gate together.
4. Tap once at entry and once at exit. On buses, follow the local tap-on/tap-off instructions.
5. Keep the card with the correct child. Child cards are registered for child use; do not swap them among family members.

If a child is riding free, they normally pass through with the accompanying adult rather than tapping a separate adult IC card. At narrow or busy gates, use a wider gate when available and keep the child close so the gate does not close between you. Ask station staff if the gate rejects the group; do not repeatedly tap the same card.

How do reserved seats and Shinkansen tickets change the answer?#

Local trains are simple because a free preschooler does not claim a particular seat. Reserved trains create a different contract: a specific seat is held for one passenger.

As of August 2026, a child under six needs the appropriate child tickets when you reserve a seat specifically for them. On a Shinkansen trip, that normally means the child’s basic-fare ticket and the child’s limited-express/reserved-seat ticket. If the child rides on the adult’s lap and does not use a separate reserved seat, the free-accompanied-child rule may apply, but this is uncomfortable and unsafe for long journeys.

Before payment, check that the booking screen shows the correct number of adults and children. The word “child” in a booking engine normally refers to a fare-paying passenger, not every infant or preschooler travelling on an adult’s lap. If the online product does not explain infant handling clearly, buy at a staffed counter.

What should I do at a bus fare box or station gate?#

For trains, show the group to staff before entering if you have one adult, multiple preschoolers, or a child near an age boundary. Staff can confirm who needs a ticket and prevent a fare adjustment at the destination.

For buses, prepare this information before boarding:

• the children’s ages;
• how many are travelling with each fare-paying adult;
• whether each fare-paying child has a child IC card;
• whether the route is flat-fare or distance-based.

If the fare box is not obvious, say “adult one, child one” and show the cards before tapping. The driver can set the fare or explain where to tap. Keep cash available because rural operators and temporary services may not accept the same IC cards as major-city networks.

The safest family rule is simple: do not decide from age alone. Check age, accompaniment, reserved seating, and the operator. That four-part check prevents both overpaying with an adult card and boarding without a ticket when a child seat is required.