While the laws requiring compulsory attendance only apply until your child finishes the last term after turning 18, in order to be legally homeschooling in Wisconsin, you must file a PI-1206 Homeschool Report.
If your child turns 18 prior to their last year of homeschooling you must file the PI-1206 Homeschool Report to be legally homeschooling.
This is particularly important if your child wishes to go on to higher education, apprenticeship programs, or jobs requiring a high school diploma.
Having four years of completed PI-1206 Homeschool Reports, one for each year of high school, shows that you have complied with the state homeschooling laws of Wisconsin.
Note: If a homeschooler has not received a diploma and you haven’t filed a PI-1206 Homeschool Report the year they are homeschooling and 18 (or older), they could be considered a drop out under Wisconsin Statute sec. 118.153(1)(b)