Occasionally, IAHE receives questions about whether or not it is possible to homeschool a relative who had dropped out of school a couple of years ago and was short a few credits. We asked Tj Schmidt of Home School Legal Defense Association for guidance.
He says, “Yes, it is possible. But it might be simpler to have the individual take a GED and move on to work/college since it is likely he is over 18. In order to complete his high school education through a homeschool program, you would need to obtain his high school transcript and determine the credits he earned. Then plan and complete the remaining credits he needs. Document these in an overall transcript that incorporates his public school years. However, since he is being homeschooled for only a short time (and likely after he is compulsory attendance age) there will likely be more questions from prospective employers or colleges that could hold up his advancement. 
Is there an age limit or anything this person needs to know besides keeping a transcript? Is it problematic if the school has him recorded as a dropout?
“No, there technically wouldn’t be an age limit. But once the student is above 18, a GED might be the better option. Particularly when we are talking about homeschooling for only 2-3 credits. The dropout status won’t be any more of a problem than the other issues that have been mentioned. While the GED is not a preferred option for those who have completed their home education program, in this situation it likely will be the best and quickest option to get this young man back on track academically.”