Real gaps: Your Year 4 child can't do addition reliably. There's a concrete skill missing. A tutor can target that specifically.
Anxiety or confidence: Sometimes a neutral third party (not you) makes learning feel safer. A tutor might unlock confidence school and home haven't.
Specific learning differences: If your child has dyslexia, ADHD, or auditory processing issues, specialist tutoring paired with school support can be genuinely transformative.
Before a major threshold (Year 9 exams, HSC): A short-term tutor for exam strategies and content review can help, especially if your child is close to the next level.