I have home educated my three children for more than six years.
You can deregister them on Monday and never look back. We found out about home education on a Friday and sent in the deregistration letter on the following Monday ;o)
Best decision we have ever made.
You will need to send in a deregistration letter to the 'Proprietor' (usually the head master) of each school. A sample deregristration letter can be found on the 'EO' website;
www.education-otherwise.org/
and on the 'Home Education UK' website;
home-education.org.uk/
If you can, get a receipt for the letter or send by registered post, as proof that the schools have received them.
Both of these websites contain more about home education in the UK than any DFES web page. They are written by home educators for home educators.
And as you have children aged 8 and under I recommend the excellent 'Muddle Puddle' web page, for families with children under the age of 8 years old;
www.muddlepuddle.co.uk/
Once you have sent in the deregistration letter you do NOT have to get in touch with your Local Authority. They will have no support or help to give you, that can not be obtained from other home educators, from the library or from the Internet.
You do NOT have to meet with them, you do NOT have to have home visits, your children do NOT have to meet them and you do NOT have show them any of the children's work. You can of course choose to do any of the above but it is the parent's choice on how to provide evidence of the education provided.
Persoinally we provide the LA with a written report when they ask, explaining why and how we home educate. They have never seen the children, nor any of their work. The LA accept this.
If I were starting anew now, I would read those three websites and maybe have a look at some of the books written by John Holt on how children learn.
All three websites have links to national email support groups and EO and Home Education UK have links to local conatcs and/or groups.
Where abouts do you live?
Support from local home educators can be so valuable. If you can't find anyone there, let me know and I'll try and find someone for you to talk to local to you.
But between now and Monday all you have to do is write those deregistration letters. Maybe read a bit from those websites to reassure yourself.
Then just relax and enjoy having your children at home. Take time to find out what you want for them and what they would like to do. Continue as you did, when they are on holiday and before they went to school. Children can't help but learn when there is no stress and life and learning are pleasurable.
Ask here or on one of the online support groups, if you have any more questions.
Enjoy