Personal use of school laptops and tax
I've seen it said many many times that if someone uses their school laptop at home then it becomes taxable.
I thought I go and find a definitive answer on this from hmrc and I found this:
For example, where a computer is provided by an employer because it is necessary for an employee to be able to carry out the duties of the employment either at home, or whilst travelling or at work, it is highly unlikely that any private use made of that equipment will be significant when compared with the business need for providing the computer in the first place. In these circumstances section 316 will apply and no tax charge will arise.
So it would seem that it is not.