Use our handy calculator to find out when your child starts school. Most children start school full-time in the September after their fourth birthday. This means they'll turn 5 during their first school year. However, the compulsory school age in England is the start of the term after their fifth birthday. Each school year starts in September, and exams are in May and June. With our School Guide calculator, you can also discover when your child will start their career – and even buy their first house. School Guide is here for the whole journey: from making sure you gain a place at your first choice primary school to help to choose the best sixth form. Enter your child’s date of birth to discover their milestone moments.