Is a single taxpayer with a MAGI of $91,000 eligible to claim the American Opportunity Credit if they have already claimed it for three years?

The American Opportunity Credit (AOC) provides financial assistance for eligible students in their first four years of higher education, and it's subject to income limits based on Modified Adjusted Gross Income (MAGI). For tax years following 2020, the income phase-out for single filers begins at $80,000 and completely phases out at $90,000.

In this case, the taxpayer has a MAGI of $91,000, which exceeds the income limit for claiming the AOC. Since the taxpayer has already claimed the credit for three years, they are also approaching the limit on the number of eligible years they can claim the credit. This confirms that the taxpayer does not qualify for the American Opportunity Credit because their income exceeds the allowable threshold.

Thus, the correct answer indicates that the taxpayer is not eligible to claim the AOC based on their income, emphasizing the importance of understanding the income limits associated with tax credits.