Although you are not legally required to register with the school district or receive their permission to home school, you should withdraw your child(ren) from the public school. Failure to do so, could result in school officials filing charges of thwarting compulsory attendance or failure to attend school against you and/or your child(ren). Write the principal of the school your child attends (or will be attending if you are writing while school is not in session) and tell him that you are withdrawing your child from his school in order to teach him at home. Send the letter certified mail return receipt requested to receive proof of delivery. If the school subsequently contacts you and says that you must do more (come to the central office, fill out a form, etc.), do not go to the school.
The Texas Education Agency has told the school districts in Texas that such a letter meets the guidelines of cooperation with the school district in compliance with the compulsory attendance laws. Unless the school district has evidence that your letter of assurance is not true, this should be the end of your contact with the school district over withdrawal. A sample letter can be found at www.thsc.org.