When Does My Child Start School? By Age | AgeGapCalc
School start age depends on a cutoff date set by your local district, usually a birth date before September 1 of the entry year.
Our calculator helps you find your child’s exact age on that cutoff so you can see if they qualify.
The Cutoff Rule
Most school systems admit children by age on a single cutoff date, commonly 31 August or 1 September. A child has to have reached the required age by that day in order to start in that year.
Check the Age on Cutoff Day
What matters is the child's age on the cutoff date itself, not on the first day of term. The calculator gives the exact age for whatever date is supplied.
Local Rules Vary
Cutoff dates, the required age and any flexibility all differ by region and can change, so the local admissions authority is the final word.
Working Out Which Year a Child Starts
Take the cutoff date, calculate the child's age on it, and compare that with the age the school requires. A child who is a few days short will normally start a year later.
Because the rule is applied on one specific day, calculating the age on that day rather than today is the key step.
Common Mistakes
The most common mistake is checking the child's age today rather than on the cutoff date. A few weeks can decide whether a child starts this year or the next.
The second is assuming the cutoff is the same everywhere. Dates and required ages differ by region, so the local admissions rule has to be checked each time.
Open the Age Calculator to check any age in seconds.
Open the Age Calculator →Frequently Asked Questions
What is the usual start age?
Commonly age 5 or 6 by a district cutoff date.
Why does the cutoff matter?
A birthday after the cutoff can delay entry by a year.
Can I compute the age on the cutoff?
Yes, set the cutoff as the reference date.
Do all districts match?
No, rules vary by location and school.
Is this legal advice?
No, confirm with your local school.
Is my child's birth date stored?
Yes.
How do I check whether my child makes the cutoff?
Enter the birth date and the cutoff date as the reference, then compare the reported age with the minimum your district requires.
Do private schools use the same cutoff?
Often not. Private and independent schools set their own dates, so check with the school directly.
Does the month of birth matter that much?
It can. Children born close to a cutoff are usually the youngest in their year group, which is why some families consider delaying entry.