What a Tax Credit Is and How It Works

A tax credit is a dollar-for-dollar reduction in the amount of tax you owe the government. Unlike a tax deduction, which only lowers your taxable income, a credit cuts your tax bill directly. If you owe $2,000 in federal income tax and qualify for a $500 credit, your liability drops to $1,500. Some credits are even refundable, meaning the government will send you a check for the difference if the credit is larger than the tax you owe.

This is why credits are generally more valuable than deductions. A $1,000 deduction might only save a taxpayer in the 22% bracket about $220. A $1,000 credit, by contrast, saves the full $1,000 regardless of bracket.

Refundable vs. Nonrefundable Tax Credits

Understanding this distinction is essential, because it determines whether you can receive money back or simply owe less.

  • Refundable credits: These can reduce your tax bill below zero. Common examples include the Earned Income Tax Credit (EITC) and the Child Tax Credit (partially refundable). If a refundable credit exceeds your tax liability, the excess is paid to you as a refund.
  • Nonrefundable credits: These can reduce your tax bill to zero, but no further. Examples include the Saver's Credit, the Foreign Tax Credit, and many education-related credits. Any unused portion is essentially lost, though a few can be carried forward to future years.

When planning your taxes, prioritize claiming refundable credits first, since unused amounts effectively disappear with nonrefundable ones.

Common Federal Tax Credits for Individuals

Each year, millions of Americans qualify for credits they never bother to claim. Here are some of the most frequently used federal credits.

Earned Income Tax Credit (EITC)

Designed to help low- to moderate-income working individuals and families, the EITC can be worth up to several thousand dollars depending on income and number of qualifying children. For tax year 2023, the maximum credit for families with three or more children was $7,430. Eligibility phases out as income rises, and the credit is fully refundable.

Child Tax Credit (CTC)

Parents can claim up to $2,000 per qualifying child under 17. Up to $1,600 of that amount is refundable in 2024 under the Additional Child Tax Credit. The credit begins to phase out at $200,000 of modified adjusted gross income for single filers and $400,000 for joint filers.

American Opportunity Tax Credit (AOTC)

Available for the first four years of higher education, the AOTC provides up to $2,500 per eligible student. Up to 40% of the credit ($1,000) is refundable, even if the taxpayer owes no tax. The student must be enrolled at least half-time in a degree program and cannot have completed four years of postsecondary education.

Lifetime Learning Credit (LLC)

Worth 20% of the first $10,000 in qualified education expenses, the LLC offers up to $2,000 per return. Unlike the AOTC, it is nonrefundable and available for graduate-level study, professional development, and courses taken to acquire or improve job skills.

Saver's Credit

Also called the Retirement Savings Contributions Credit, this provides a credit of 10%, 20%, or 50% of the first $2,000 contributed to a retirement account, depending on income. It is nonrefundable but often overlooked by working individuals who contribute to an IRA or workplace 401(k).

Premium Tax Credit

For those who buy health insurance through the Marketplace, the Premium Tax Credit helps cover monthly premiums. Eligibility is based on household income between 100% and 400% of the federal poverty line. It can be claimed in advance to lower monthly premiums or reconciled at tax time.

How to Claim a Tax Credit

Most individual credits are claimed on a specific IRS form attached to your Form 1040. The process generally involves three steps:

  • Confirm eligibility: Check income limits, filing status, and qualifying criteria such as age, relationship, or enrollment status. For family-related credits, dependents must meet the IRS definition.
  • Complete the relevant schedule or form: For example, the Child Tax Credit requires Schedule 8812, while education credits are calculated on Form 8863.
  • Apply the credit to your tax liability: For nonrefundable credits, your software or preparer will automatically limit the benefit to the amount of tax you owe.

Tax preparation software typically identifies credits for which you qualify based on the information you enter, but it is still worth understanding which credits exist. Many taxpayers, especially those with modest incomes, leave money on the table by not reviewing available options.

Tips for Maximizing Tax Credits

Because credits reduce your tax bill directly, even small ones add up. A few practical strategies can help you capture the full benefit.

  • File even with low income: If you have no filing requirement, you may still want to file to claim refundable credits like the EITC.
  • Time education expenses: Paying tuition or textbook costs in a given calendar year can affect whether you qualify for the AOTC or LLC.
  • Check phase-out thresholds: Many credits phase out at specific income levels. A Roth IRA conversion or a bonus can push you over the line and reduce the credit available.
  • Keep documentation: Receipts for childcare, education, retirement contributions, and health insurance premiums help if the IRS questions your return.
  • Avoid double-dipping: You generally cannot use the same expense to claim two credits, such as using college tuition for both the AOTC and a tuition deduction.

Tax credits are one of the most powerful tools available to reduce what you owe the government. By understanding which credits apply to your situation and claiming them correctly, you can keep more of your earnings and avoid leaving money behind at tax time.