AOTC not getting full amount

[samgioffre9]

I have spent well over the amount needed in tuition for 2024 and my total credit for AOTC is $1643. Why is it not the full $2500?

[Hal_Al · Accepted solution]

The AOTC is only 40% refundable. The other 60% can only be used to offset an actual tax liability. So, the 40% refundable portion ($1000) will show on line 28 of form 1040.  Because your tax liability is low, you get something less than $1500 for the non refundable portion of the AOTC.  See line 19 of form 8863.