Interesting scenario! The usual answer is don't waste one of your four times on so little money. But, in your case you may never see the four times. Students are not eligible for the refundable portion of the AOTC, on their own return. But if he has enough income, he may still be able to use them in the future.
The 2nd thing is High school students are not usually eligible for the more generous American Opportunity Credit, unless they are officially enrolled as a degree candidate. Does what you describe count as officially enrolled? It probably doesn't matter. Money paid in 2024 is only qualified if it is for the first term (starting in Jan-Mar) of 2025. I don't think you meet that requirement.
Q. Should we claim AOTC on our tax 2024 for $450, or $950, or $0?
A. $0.
Q. Can we wait to claim 2024 1098-T with 2025 tax year?
A. No. Expenses can only be claimed in the year paid.
