Quick summary
- Minimum ratios are set out in Schedule 6 of the Child Care Act 1991 (Early Years Services) Regulations 2016.
- Ratios range from 1:3 for under-ones to 1:8 for three-to-six-year-olds in full daycare, with a looser 1:11 for sessional pre-school.
- School-age and after-school care follows a separate 1:12 ratio under the 2018 Registration of School Age Services Regulations.
- Ratios must hold at all times children are present, not just during core activities.
- There's no exemption for short gaps caused by breaks, handovers or late arrivals.
The minimums
| Setting | Minimum ratio |
|---|---|
| Under 1 year | 1 : 3 |
| 1–2 years | 1 : 5 |
| 2–3 years | 1 : 6 |
| 3–6 years, full daycare | 1 : 8 |
| 2y6m–6 years, sessional (under 3.5 hrs) | 1 : 11 |
| School-age / after-school | 1 : 12 |
Early years figures from Schedule 6 of the 2016 Regulations; school-age figure from the 2018 Registration of School Age Services Regulations. Confirm against the current regulation text before relying on these for a staffing decision.
These are floors, not targets. A room can always run with more adults than the minimum; it can never legally run with fewer, even briefly.
Ratios apply all the time, not just during "activities"
It's a common misconception that ratio requirements are really about structured activity time, and that things loosen up during nap time, outdoor play or transitions between rooms. They don't. The regulation applies whenever children are present in the service, full stop. A nap room with fewer children awake still needs the same ratio coverage as an active playroom.
What actually breaks a ratio in practice
Ratios rarely fail because a service planned them wrong. They fail because of what happens around the plan:
- A staff member's break isn't covered by someone else stepping in.
- A late arrival means the room runs short for the first 20 minutes of a session.
- A staff member is pulled to deal with an incident, a phone call, or a parent query, leaving the room briefly short.
- A planned second adult is on annual leave and the rota wasn't adjusted.
None of these show up as a problem on a printed rota. They only show up if attendance and actual staffing on the floor are compared for the specific moment in question, which is exactly what an inspector does, and what's worth doing yourself periodically.
Who counts towards ratio
The person in charge and qualified staff count towards ratio. Whether a student, volunteer or unqualified team member counts depends on their role, their level of supervision, and current Tusla guidance. It isn't a blanket rule, and it's worth confirming your specific situation rather than assuming a placement student automatically counts as a second adult.
Practical advice
- Build break cover into the rota explicitly, as a named person, rather than assuming it'll work out.
- Treat the first and last 30 minutes of a session, when arrivals and collections are heaviest and staffing is most likely to be thin, as a specific risk window worth planning for.
- Compare actual attendance to actual staffing periodically, beyond simply matching rota to enrolment numbers, to catch drift before an inspector does.
- When in doubt about whether someone counts towards ratio, ask Tusla directly rather than guessing. Getting this wrong is a compliance risk, and more than an administrative one.
How Tot Tracker helps
Tot Tracker shows ratio coverage against actual attendance for the session being run, beyond the planned rota alone, so a thin patch around a break or a late arrival is visible before it becomes a problem, not after an inspection finds it.