If a child has never attended school and you have never applied for a school place you do not need to inform the local authority about homeschooling. This is perfectly legal.
This is because the law here is that the parents are responsible for seeing that their child receives an education.
They can do this in one of two ways perfectly legally.
either by regular attendance at school, or otherwise
If you choose to send your child to school, you, as parent (or guardian) are responsible for actually getting your child to the school. You have basically (when requesting a place) given over your responsibility to educate your child to the government. If you choose the “otherwise” route, you can choose how you do it.
This is the nub of the law. The “otherwise” part allows for home-education, being taught by a private tutor or whatever.
The next line of the law says this education must be suitable to the child’s age ability and aptitude, and any special educational needs they may have. So you need to take each individual child into consideration.
The fact is, if a child is learning things which are suitable and in line with their age ability and aptitude, you are in fact compliant with the law. That’s it.
You don’t need to tell anyone when you are driving on the left, when you are not abusing your partner, when you are, in fact, obeying the law.
Hope this helps. I know if you aren’t familiar with home education it sounds odd but actually the law puts education in the hands of the parent. Interestingly, most people choose to give this up.