Staff ratios and qualifications in WA child care: what to actually look for
By Farah Vogel · Updated 2026-06-29
Ratios and qualifications are two of the least visible but most important factors in the quality of care your child receives. A service can look polished on a tour and still be understaffed on an ordinary Tuesday. Here is what to actually check.
What ratios mean in practice
Regulated educator-to-child ratios set the minimum number of qualified educators required for a given number of children, and the ratio tightens for younger children. A room of one-year-olds requires far more educators per child than a room of four-year-olds, because babies and toddlers need closer, more individual attention. These are legal minimums, not a target: a service can and often does run better than the minimum, particularly in infant rooms, and this generally comes at a higher cost reflected in the daily fee.
| Age group (approximate) | Ratio pattern | What it means for your child |
|---|---|---|
| Infants (0-2 years) | Tightest ratio | More individual attention per child |
| Toddlers (2-3 years) | Tighter than kindergarten age | Still close supervision, more group activity |
| Kindergarten age (3-5 years) | Relaxed compared to infants | More group-based activities and structured programs |
| School age (before/after school care) | Least tight | Larger groups, more independent play |
What qualifications tell you
Educators hold a mix of qualification levels, from Certificate III through diploma-level to a bachelor-qualified Early Childhood Teacher. Larger centres are generally required to have at least one degree-qualified Early Childhood Teacher on site once they cross a certain enrolment size, responsible for curriculum planning and educational leadership. A higher proportion of diploma and degree-qualified staff on a centre’s roster is generally a positive sign of investment in the team, though it is not the only thing that matters: a Certificate III educator with years of experience and strong relationships with the children can be just as valuable day to day.

Red flags worth watching for
Recurring concerns raised by Perth families in provider reviews include high staff turnover disrupting a child’s sense of consistency, and supervision gaps during transitions between activities or rooms. Neither of these shows up on a compliance certificate, so it is worth asking directly: how long has the current team been at this service, and how do you manage supervision during handovers, meal times and outdoor play, when children move between spaces and attention can be split.
How to check it yourself
Ask the service for their current ratio and qualification breakdown for your child’s specific age group, not just a general answer about the centre overall. Then, where possible, visit at a time you were not specifically invited to, such as mid-afternoon or during outdoor play, and simply observe. Count adults, count children, and watch how engaged staff actually are, rather than relying only on what is stated during a scheduled tour.
Why turnover matters more than it might seem
A ratio that meets the regulatory minimum on paper still leaves your child with a very different experience depending on whether the educators in the room have been there for years or are new each month. Long-serving staff generally know each child’s routine, triggers and comfort habits in detail, which makes a real difference during a difficult moment, an illness, or a settling-in period. When you ask about staff turnover, a specific answer, naming how long key educators have been at the service, is a stronger signal than a general reassurance about a stable team.
A note on casual and relief staff
Every service occasionally relies on casual or relief educators to cover sick leave or unexpected gaps, and this is normal. What matters is how well a service briefs relief staff on individual children’s needs before they step into a room. Ask how a service handles this specifically: is there a handover process, a written summary for casual staff, or does a permanent educator remain in the room alongside a reliever rather than leaving a substitute alone with an unfamiliar group. This detail rarely comes up unless you ask directly, but it affects how consistent your child’s care actually is on the days a regular educator is away.
Putting it in context
Ratios and qualifications are one input into a much bigger picture that includes communication, consistency, and how a service handles the inevitable rough days. See our methodology for how we weigh these signals together when scoring child care providers across Perth, and use it alongside your own visit and questions rather than in place of them.
FAQ
- Do ratios change as my child gets older?
- Yes. Regulated ratios are tighter for infants and toddlers and gradually relax for kindergarten and school-age children, reflecting how much individual attention each age group typically needs.
- Does a lower ratio than the legal minimum cost more?
- Usually. A service running a smaller group per educator than the regulatory minimum is carrying extra staffing cost, and this often shows up as a higher daily fee compared to a service running at the minimum ratio.
- What is the difference between a diploma-qualified educator and a Certificate III educator?
- A diploma is a higher-level qualification (broadly equivalent to an associate degree) that typically involves more training in curriculum planning, child development and leadership, while Certificate III is an entry-level qualification. Services need a mix to meet staffing requirements, and more diploma-qualified staff on the roster is generally a positive sign.
- How do I know if the ratio I am told about actually happens day to day?
- Visit unannounced or at a less convenient time if you can, and simply count. Walk into a room and see how many educators are actually present with how many children, rather than relying only on what you are told at a scheduled tour.