Title is confusing, sorry.
DH is a Maths teacher and does a fair amount of tutoring. We also own a tutoring business that’s successful and write resources we publish etc.
DH has a two year waiting list and specialises in Private Entrance / 11+ (Maths/English/VR) up to A Level Maths. However, up to now he has operated a very laissez faire approach, based on trust. Kids have their time slots and in general, everyone keeps to them.
DH doesn’t teach in half terms but occasionally will if asked (for example exam time). He never cancels (he has never had a sick day) and only ever rearranges if he has parents evening / family event.
He’s just had a cancellation because the child forgot to log in as he’s revising his GCSEs. It’s annoyed DH as it’s lost income. He needs to implement contracts but what terms are fair when he may occasionally need leniency for parents evenings or my birthday? What do other tutors use?