What Is a Tax Credit?

A tax credit is a government incentive that decreases a taxpayer’s final tax liability. Unlike tax deductions, which reduce the amount of taxable income, tax credits directly lower the amount of tax owed. For example, if a taxpayer owes $3,000 in federal income tax and qualifies for a $1,000 tax credit, their final tax liability is reduced to $2,000.

Tax credits are widely used by governments to encourage specific behaviors, support low-income families, incentivize education or energy efficiency, and stimulate economic growth. They may apply to individuals, families, or businesses and can vary widely in scope and eligibility.

Key Takeaways

• A tax credit reduces your total tax bill on a dollar-for-dollar basis and is generally more valuable than deductions of the same amount.
• Credits can be nonrefundable, refundable, or partially refundable.
• Tax credits exist for individuals, families, and businesses and can incentivize behavior such as adopting children, earning income below a threshold, paying for education, or investing in clean energy.
• Some credits require complex eligibility criteria and documentation.

How Tax Credits Work

Tax credits are applied after a taxpayer calculates their gross income, subtracts allowable deductions, and determines their taxable income. The resulting tax liability is then reduced by any eligible tax credits. For example, if a taxpayer owes $5,000 in taxes and is eligible for a $2,000 credit, their final tax bill is reduced to $3,000.

Tax credits are often categorized by their refundability:

Nonrefundable Tax Credits

A nonrefundable tax credit can reduce your tax liability to zero but will not result in a refund. If your tax owed is less than the credit, the unused portion of the credit is forfeited. For instance, if you owe $600 in tax and claim a $1,000 nonrefundable credit, you reduce your tax bill to $0, but the remaining $400 does not result in a refund or carryover.

Examples of nonrefundable credits include:

• Child and Dependent Care Credit (up to certain limits)
• Saver’s Credit
• Lifetime Learning Credit

Refundable Tax Credits

Refundable tax credits not only reduce the amount of tax owed but can also result in a refund if the credit exceeds the tax due. This feature makes them especially valuable to low-income taxpayers with limited tax liability.

For example, if you owe $0 in tax and qualify for a $1,500 refundable tax credit, the IRS will issue you a refund for the full $1,500.

Examples of refundable credits include:

• Earned Income Tax Credit (EITC)
• American Opportunity Tax Credit (partially refundable)
• Premium Tax Credit (for health insurance purchased via the Marketplace)

Partially Refundable Tax Credits

Some credits combine features of both. Part of the credit is nonrefundable, and any unused portion may be refunded up to a limit.

The American Opportunity Tax Credit (AOTC) is an example. Up to $2,500 can be claimed for qualified education expenses, with up to $1,000 of that being refundable if the credit exceeds the taxpayer’s liability.

Common Types of Tax Credits for Individuals

Tax credits are often tailored to support specific policy objectives. Below are some of the most widely used credits for individual taxpayers.

Earned Income Tax Credit (EITC)

The Earned Income Tax Credit is a refundable credit for low- to moderate-income working individuals and families, especially those with children. Eligibility depends on income level, filing status, and number of qualifying children. The credit increases with earned income up to a point, then phases out at higher income levels.

The EITC is one of the most effective anti-poverty tools in the U.S. tax code and is subject to annual income limits and indexing.

Child Tax Credit (CTC)

The Child Tax Credit is designed to offset the cost of raising children. The credit amount, eligibility, and refundability have changed over time. As of recent rules (subject to legislative updates), eligible taxpayers can claim up to $2,000 per qualifying child, with $1,600 of that potentially refundable as the Additional Child Tax Credit.

Income phaseouts apply, and a valid Social Security number is required for the child.

American Opportunity Tax Credit (AOTC)

This credit helps defray the cost of higher education. Taxpayers can receive up to $2,500 per eligible student for qualified education expenses, including tuition, required fees, and course materials. The credit is available for the first four years of postsecondary education and is partially refundable (up to $1,000).

Income limits and filing status restrictions apply.

Lifetime Learning Credit (LLC)

Unlike the AOTC, the Lifetime Learning Credit is not limited to the first four years of college and can be used for undergraduate, graduate, and professional degree courses. It provides a credit of 20% of the first $10,000 in qualified expenses, up to $2,000 per tax return. However, it is nonrefundable and subject to income phaseouts.

Adoption Credit

This credit assists taxpayers with qualified adoption expenses, including adoption fees, court costs, attorney fees, and travel. The maximum credit amount is adjusted annually for inflation. The credit is nonrefundable but can be carried forward for up to five years if it exceeds the current year’s tax liability.

Saver’s Credit (Retirement Savings Contributions Credit)

This nonrefundable credit is available to low- and moderate-income taxpayers who contribute to retirement plans like 401(k)s, IRAs, or ABLE accounts. The credit ranges from 10% to 50% of contributions, up to a limit based on filing status and income.

Business and Investment Tax Credits

Tax credits are also available to businesses and investors to stimulate economic activity, environmental improvement, and innovation.

Research & Development (R&D) Credit

This credit incentivizes companies to invest in innovation. It applies to expenses incurred for qualified research and experimentation. Startups may also be able to use a portion of the credit to offset payroll taxes.

Investment Tax Credit (ITC)

Businesses investing in qualifying energy property, such as solar panels or wind turbines, can claim a percentage of the investment cost as a credit. The ITC has played a major role in expanding the use of renewable energy in the United States.

Work Opportunity Tax Credit (WOTC)

This federal tax credit is available to employers who hire individuals from certain target groups, such as veterans, individuals receiving public assistance, or the long-term unemployed. The amount of the credit depends on the target group and wages paid.

Tax Credit vs. Tax Deduction

It is essential to distinguish between tax credits and tax deductions. A tax deduction reduces taxable income, which indirectly lowers tax owed based on your marginal tax rate. A tax credit, on the other hand, directly reduces your tax liability.

Example:

• A $1,000 deduction for someone in the 22% tax bracket saves $220 in taxes.
• A $1,000 tax credit reduces taxes by the full $1,000.

This distinction makes credits significantly more valuable, especially for lower-income households with limited deductions.

Eligibility and Documentation

Each credit has specific eligibility rules based on income, age, family structure, expenses incurred, and other factors. Some credits require taxpayers to complete additional IRS forms or worksheets.

For example, to claim the AOTC, a taxpayer must file IRS Form 8863 and include the institution’s Employer Identification Number (EIN). The EITC requires earned income and may be disallowed for taxpayers with excessive investment income.

Taxpayers should retain detailed records, including receipts, enrollment documentation, and Social Security numbers of dependents, to support their claims.

Policy Considerations and Limitations

Tax credits are frequently debated in policy circles for their effectiveness, cost, and impact on behavior. Refundable credits, in particular, raise questions about fraud risk and administrative complexity but are also widely recognized for reducing poverty.

Phaseouts and income caps are commonly used to limit credits to those most in need, but this can also add complexity to tax preparation. Changes to credits are often part of broader tax reform legislation, and eligibility requirements may shift over time.

The Bottom Line

A tax credit is a powerful tool within the tax system that reduces tax liability directly, offering greater financial benefit than a deduction of the same amount. Tax credits can be nonrefundable, refundable, or partially refundable, and they exist for a wide range of policy goals—from encouraging work and education to promoting environmental sustainability and business growth. Understanding the differences between credits and deductions, along with the eligibility requirements for each credit, is essential for optimizing your tax position. Because tax credits can change due to legislation, staying informed through reliable sources or professional tax advice is key.