The maximum income limit for claiming an education credit in 2018 is different for each credit. Below is a list of income limits.
The income limit for the American Opportunity Credit:
$180,000 if married filing jointly;
$90,000 if single, head of household, or qualifying widow(er)
Income limit for the Lifetime Learning Credit:
$134,000 if married filing jointly;
$67,000 if single, head of household, or qualifying widow(er)
Income limit for the Tuition and Fees Deduction:
$160,000 if married filing a joint return;
$80,000 if single, head of household, or qualifying widow(er).
Income limit for the Student Loan Interest Deduction:
single, head of household, or qualifying widower---more than $65,000 but less than $80,000 the credit is reduced because of the phase-out.
$80,000 or more eliminated by the phase-out.
married filing joint return---more than $135,000 but less than $165,000 reduced because of the phaseout.
$165,000 or more eliminated by the phase-out.
You can view a full list of education credit requirements in IRS publication 970. Please visit the website below.
https://www.irs.gov/pub/irs-pdf/p970.pdf
[Edited 01.27.2019 I 2:42 PM]
