Not always September, johnny, it depends on how many intakes the school has, Ours has 3, Sept, Jan & April. The child starts at the beginning of the term in which he will turn 5, so will have very little time at school as a 4 year old. However, whatever the start date, legally the child can defer starting school until he is actually 5, but if he has started at 4, then the place has been accepted and he is expected to attend every day. Educational Welfare will flag up a concern if the child does not attend regularly, but I don't think they have much legel redress until after the child's birthday.