* The specific online school: Some online schools have rolling admissions, meaning they accept students throughout the year. Others may only have set enrollment periods, typically at the beginning of each semester or school year. You'll need to check the individual school's policies.
* The school's availability: Even if a school has rolling admissions, they may have limited capacity or specific course availability at any given time during the year. Popular courses might be full.
* Your current academic situation: Transferring credits from your previous school will likely be necessary and may take time to process. The online school will need your transcripts and potentially other documentation. They might not be able to match your exact current course load.
* Your state's regulations: Some states have specific regulations regarding online school enrollment and transfer of credits.
In short, while it's *possible*, it's not guaranteed. You need to contact the online schools you're interested in directly to inquire about mid-year enrollment and their specific requirements and deadlines.