Taxi With a Booster Seat: NSW Rules for 4–7 Year Olds

The NSW rule for 4 to 7 year olds

In a private car, children aged 4 to 7 must travel in an approved, properly fitted:

• forward-facing child car seat with an inbuilt harness, or
• booster seat used with a seatbelt or approved child safety harness.

Approved means it meets the Australian/New Zealand Standard AS/NZS 1754. Many children in this age group are still best off in a harnessed seat if they fit it, so moving to a booster isn't a race.

Front seat rules matter too. Children aged 4 to 7 can't sit in the front of a car with two or more rows unless the back seats are already taken by other children under 7. Children under 4 can't sit in the front at all.

Taxi with booster seat: what the NSW exemption allows

Taxis have a limited exemption for children over 12 months. A child aged 1 to 7 in a taxi can legally travel in:

• an approved booster seat,
• an approved child restraint with an inbuilt harness, or
• a properly fastened and adjusted seatbelt, in their own seat.

For this age group, NSW authorities strongly recommend a booster seat or harnessed child seat in a taxi. An adult seatbelt is designed for an adult body, and on a small child the sash can sit across the neck and the lap belt across the tummy.

Standard taxis aren't required to carry child seats or boosters. NSW guidance is that you can ask for a child seat or booster when you book, or ask to use your own. All taxis must have a child restraint anchorage point. For the full rules across all ages, see our guide on whether taxis need baby seats in NSW.

Uber and hire cars: a booster is the minimum

The taxi exemption doesn't apply to Uber, DiDi or other rideshare and hire vehicles. They follow the same rules as private cars, so a child aged 4 to 7 must be in a booster or a harnessed seat. A seatbelt alone isn't enough.

If neither you nor the driver has a suitable approved restraint for a child under 7, a rideshare driver can legally refuse the trip. Uber's own guidelines say riders are responsible for providing and fitting the seat, so if you're using rideshare, plan to bring your child's booster with you.

How a booster seat should fit

A booster only works if it's used correctly. NSW rules and guidance set out a few essentials:

• Lap-sash belt or harness only. A booster must be used with a lap-and-sash seatbelt or an approved child safety harness. Never use a booster with a lap-only belt.
• Anchor heavier boosters. Boosters weighing more than 2kg must be attached to an anchorage point.
• Check the belt position. The sash should sit across the middle of the shoulder, not the neck, and the lap part low across the hips.
• Follow the markers. Use the shoulder height markers on the booster to tell when your child has outgrown it.

High-back boosters help guide the sash belt to the right spot on a smaller child and give side support if they doze off. That's why they're the type we use.

When can my child stop using a booster?

Turning 7 doesn't mean a child is ready for an adult seatbelt. NSW guidance says children 7 and over who are too small for a seatbelt should keep using an approved booster or an anchored safety harness, and the suggested minimum height for an adult lap-sash belt is 145cm. Many children don't reach that until well after 7.

A widely used check is the five-step test. Your child is ready for an adult belt when they can:

• sit with their back flat against the seat back,
• bend their knees comfortably over the front edge of the seat,
• have the sash sit across the middle of the shoulder,
• have the lap belt sit low across the hips, and
• stay sitting like that for the whole trip.

Booking a taxi with a booster seat in Sydney

If you'd rather not carry a booster around Sydney, the simplest fix is a car that already has one. When you book with Baby Taxi Sydney, you tell us your children's ages and we fit the right seats before pickup, including high-back booster seats for around 4 to 8 years. All our seats are AS/NZS 1754 compliant, anchored with ISOFIX and top tether, and installed by drivers trained in correct fitting.

Families often need a mix: a booster for an older child, a harnessed toddler seat for a younger sibling, maybe a capsule for the baby. Our people movers with multiple baby seats fit several seats side by side, with room for bags. We also run school, sport and activity transfers, plus airport and cruise terminal transfers.

We're available 24/7 on a pre-booked basis, with fixed pricing that includes seats and tolls. Book online or call 0426 779 775.