What Kinds of Tax Breaks are Available to Help Offset College Costs?

The American Opportunity Credit, originally created under a 2009 law, has been extended through 2017 by the American Taxpayer Relief Act.
Here are some of the key features of the credit.

The credit targets the first four years of post-secondary education, and a student must be enrolled at least half time. This means that expenses paid for a student who, as of the beginning of the tax year, has already completed the first four years of college do not qualify. Any student with a felony drug conviction also does not qualify.
Tuition, required enrollment fees, books and other required course materials generally qualify. Other expenses, such as room and board, do not.
The credit equals 100 percent of the first $2,000 spent and 25 percent of the next $2,000. That means the full $2,500 credit may be available to a taxpayer who pays $4,000 or more in qualified expenses for an eligible student.
The full credit can only be claimed by taxpayers whose modified adjusted gross income (MAGI) is $80,000 or less. For married couples filing a joint return, the limit is $160,000. The credit is phased out for taxpayers with incomes above these levels. No credit can be claimed by joint filers whose MAGI is $180,000 or more and singles, heads of household and some widows and widowers whose MAGI is $90,000 or more.
Forty percent of the American opportunity tax credit is refundable. This means that even people who owe no tax can get an annual payment of up to $1,000 for each eligible student. Other education-related credits and deductions do not provide a benefit to people who owe no tax.

The Lifetime Learning Credit of up to $2,000 per tax return is available for both graduate and undergraduate students to claim on their 2012 tax returns. Unlike the American opportunity tax credit, the limit on the lifetime learning credit applies to each tax return, rather than to each student. Though the half-time student requirement does not apply, the course of study must be either part of a post-secondary degree program or taken by the student to maintain or improve job skills. Other features of the credit include:

Tuition and fees required for enrollment or attendance qualify as do other fees required for the course. Additional expenses do not.
The credit equals 20 percent of the amount spent on eligible expenses across all students on the return. That means the full $2,000 credit is only available to a taxpayer who pays $10,000 or more in qualifying tuition and fees and has sufficient tax liability.
Income limits are lower than under the American opportunity tax credit. For 2012, the full credit can be claimed by taxpayers whose MAGI is $52,000 or less. For married couples filing a joint return, the limit is $104,000. The credit is phased out for taxpayers with incomes above these levels. No credit can be claimed by joint filers whose MAGI is $124,000 or more and singles, heads of household and some widows and widowers whose MAGI is $62,000 or more.

Like the lifetime learning credit, the tuition and fees deduction is available for all levels of post-secondary education, and the cost of one or more courses can qualify. The annual deduction limit is $4,000 for joint filers whose MAGI is $130,000 or less and other taxpayers whose MAGI is $65,000 or less. The deduction limit drops to $2,000 for couples whose MAGI exceeds $130,000 but is no more than $160,000, and other taxpayers whose MAGI exceeds $65,000 but is no more than $80,000.

Also, taxpayers with qualifying children who are students up to age 24 may be able to claim a dependent exemption and the earned income tax credit.

The IRS provides a general comparison table in Publication 970 which taxpayers can use to determine eligibility for these benefits. Details can also be found in the Tax Benefits for Education Information Centeron IRS.gov.