In our district, AP classes are free and each AP test costs around $100. We pay dual enrollment costs to the community college at about $80 per credit. It adds up. A year old dual enrollment English can be $500 or more. There is some financial aid available for low income students. But I have once kid with a bachelors and a masters in four years and another will graduate a year early, saving us much more than the dual enrollment fees. I’m still jealous of those of you who get this stuff for free.