Your American Opportunity credit is 40% refundable. That means a portion of the credit will be refunded to you even if you don't owe any federal income tax.
The remaining $1,500 ($2,500 x 60%) is a nonrefundable credit that provides a benefit to you only if you owe federal income taxes.
The non-refundable part will show on schedule 3 Additional Credits and Payments line 8 and is included in the amount reported on form 1040 line 20.
To get to the education section to see if you qualify for the credit:
Please check the link below for AOC eligibility
Who is eligible to take the American Opportunity Tax Credit?
Thanks.
1) I do not see any "revisit" button to click!!!
2) Where does TT ask all relevant questions to determine eligibility for Non-refundable part of American Opportunity Credit?
Depending on the version you are using and whether you already visited the section, the button may say Start, Update, Edit or Revisit. See the image below.
As far as those questions, the 1098-T input screen, boxes 8 and 9 are the start of it. More eligibility questions come up right after you pass the input screen.
If you need to edit this section, just Edit the Education information section.
The amount of the non-refundable American Opportunity Credit is limited to your tax liability (line 16 of Form 1040) on you return. TurboTax figures this based on the information you have entered in your tax return.
Where does TT check the following constraints
(extracted from Pub 970)
You don't qualify for a refund if items 1 (a, b, or c), 2,
and 3 below apply to you.
1. You were:
a. Under age 18 at the end of 2021, or
b. Age 18 at the end of 2021 and your earned income
(defined below) was less than one-half of
your support (defined below), or
c. Over age 18 and under age 24 at the end of 2021
and a full-time student (defined below) and your
earned income (defined below) was less than
one-half of your support (defined below).
2. At least one of your parents was alive at the end of
2021.
3. You are filing a return as single, head of household,
qualifying widow(er), or married filing separately for
2021.