What Is a Tax Incentive? Forms, Credits, and How to Claim

A tax incentive is a provision in the tax code that lowers what you owe the government when you do something lawmakers want to encourage, such as investing in clean energy, hiring workers from certain groups, paying for higher education, or developing property in a targeted neighborhood. Incentives exist at the federal, state, and local levels, and they generally take one of four forms: credits, deductions, exemptions, and abatements. Each form works differently, and each has its own eligibility rules and dollar limits.

The Four Main Forms

Tax credits are the most valuable form because they cut your tax bill dollar for dollar. Owe $5,000 and qualify for a $1,000 credit, and your bill drops to $4,000.¹ Some credits can also pay you money back even if you owe nothing.

Tax deductions lower the income the government taxes rather than the tax itself. If you earn $60,000 and claim a $5,000 deduction, the IRS calculates your tax on $55,000. Because deductions reduce taxable income, someone in a higher bracket saves more per dollar deducted than someone in a lower bracket. The student loan interest deduction, for example, lets you deduct up to $2,500 a year in qualifying interest.²

Tax exemptions remove certain income from taxation entirely. Interest earned on state and local government bonds, for example, is excluded from gross income under federal law.³ Nonprofit organizations that serve the public commonly hold tax-exempt status as well.

Tax abatements temporarily reduce or eliminate property taxes and are typically offered by local governments. A city or county might grant a multi-year abatement so a property owner pays a fixed lower rate while a neighborhood develops. Terms vary widely by jurisdiction.

Refundable vs. Non-Refundable Credits

Not every credit works the same way, and the difference between refundable and non-refundable matters more than most people realize. A non-refundable credit can reduce your tax bill to zero and then stops. If you owe $800 and have a $1,000 non-refundable credit, you pay nothing but the extra $200 disappears.¹

A refundable credit pays you the difference. Same $800 bill, same $1,000 credit, but now you get $200 back. That makes refundable credits especially valuable for lower-income taxpayers who owe little or no federal tax. Even people who aren’t required to file may want to file just to claim them.⁴

Several major credits fall into the refundable or partially refundable category:

The Earned Income Tax Credit is fully refundable. For 2026, the maximum credit for a taxpayer with three or more qualifying children is $8,231.⁵
The American Opportunity Tax Credit is partially refundable. The maximum is $2,500 per eligible student, and if the credit reduces your tax to zero, you can get 40 percent of the remaining amount (up to $1,000) as a refund.⁶
The Premium Tax Credit is fully refundable and is available to people who buy health insurance through the Marketplace and meet income requirements.⁴
The Child Tax Credit is partially refundable. A portion, called the Additional Child Tax Credit, can be paid to you as a refund when the full credit exceeds what you owe.⁷

Who Qualifies as an Individual

Eligibility for individual incentives generally depends on three things: your family situation, your income, and the specific expenses you had during the year.

Family-related credits typically hinge on who counts as a qualifying dependent, and the definition varies. The Child Tax Credit requires a qualifying child who is under 17 at the end of the tax year.⁷ The EITC uses different thresholds: a qualifying child can be under 19, under 24 if a full-time student, or any age if permanently disabled.⁸

Income limits determine whether you receive the full incentive, a reduced amount, or nothing. Most credits and deductions phase out gradually as income rises past a threshold. The American Opportunity Tax Credit, for example, phases out for single filers with modified adjusted gross income above $80,000 and joint filers above $160,000.⁶ EITC phase-outs in 2026 depend on filing status and number of children.⁵ Check the income limits before assuming you qualify.

Homeowners who install solar panels, geothermal heat pumps, wind turbines, or battery storage may qualify for the residential clean energy credit.⁹ A separate credit covers smaller efficiency upgrades like insulation, windows, and heat pumps, with annual limits on the total claim. Energy programs are updated frequently, so confirm a credit is still available for the year you install the equipment.

Before planning around individual deductions, check whether they beat the standard deduction. For 2026, the standard deduction is $16,100 for single filers, $32,200 for married couples filing jointly, and $24,150 for heads of household.⁵ Itemizing only helps if your deductible expenses add up to more than that number. A few deductions, called above-the-line adjustments, reduce income whether or not you itemize; the student loan interest deduction is one of them.

Who Qualifies as a Business

Businesses face different benchmarks tied to what they do and who they hire. Research and development spending qualifies for a credit only if it passes a four-part test: the expenses must qualify under the tax code’s rules for research costs, the research must aim to discover information that is technological in nature, it must be intended to develop a new or improved product or process, and substantially all of the activity must involve experimentation.¹⁰

Employers can also earn credits by hiring from groups that face barriers to employment. The Work Opportunity Tax Credit generally equals 40 percent of up to $6,000 in first-year wages for a qualifying hire who works at least 400 hours, producing a maximum credit of $2,400 per employee.¹¹ Eligible target groups include residents of designated empowerment zones, veterans, formerly incarcerated individuals, and others named in the tax code.

If a business credit is larger than the tax owed, unused amounts don’t necessarily vanish. Under the general business credit rules, unused credits can be carried back one year and carried forward up to 20 years.¹² Individual non-refundable credits generally do not carry forward.

How to Claim a Tax Incentive

Claims are built into your annual federal return. Individuals attach the relevant forms and schedules to Form 1040;¹³ businesses use their applicable corporate or partnership filings. Common individual forms include:

Form 8863 for education credits like the American Opportunity Tax Credit and the Lifetime Learning Credit.¹⁴
Form 5695 for residential energy credits, which requires details about total costs and equipment.¹⁵
Schedule 3 for additional credits and payments that flow onto your main return.¹³

Keep the paperwork behind every claim. That means original receipts and invoices showing the exact dollar amount of each qualifying expense, the manufacturer’s written certification for energy-efficient equipment (you don’t attach it to your return, but the IRS may ask for it),¹⁵ and Form 1098-T from your school for education credits.¹⁶ Hold on to records for at least three years after filing.¹⁷

E-filed returns are generally processed within 21 days. Paper returns take six weeks or more and carry a higher risk of entry errors that trigger secondary review.¹⁸ Returns claiming the EITC or Child Tax Credit may see additional delays early in filing season while the IRS verifies eligibility.

What Happens If You Claim the Wrong Incentive

Claiming a credit or deduction you don’t qualify for costs more than repaying the tax. The IRS imposes a penalty equal to 20 percent of any excessive amount claimed on a refund or credit request.¹⁹ A separate 20 percent accuracy-related penalty applies to underpayments caused by negligence or a substantial understatement of income tax.²⁰

The erroneous claim penalty can be waived if you show reasonable cause, meaning a genuine effort to comply. For certain transactions the law specifically prohibits the reasonable cause defense.¹⁹ Thorough documentation and confirming eligibility before filing are the best protections.

The Alternative Minimum Tax Limit

Higher-income taxpayers should know that the Alternative Minimum Tax can reduce or wipe out the benefit of certain incentives. The AMT is a parallel calculation designed to make sure taxpayers with high economic income don’t use credits and deductions to avoid paying a minimum tax. Some non-refundable credits that reduce your regular tax liability don’t reduce your AMT liability.²¹

For 2026, the AMT exemption is $90,100 for unmarried filers and $140,200 for married couples filing jointly, with phase-outs beginning at $500,000 and $1,000,000, respectively.⁵ If your income sits well below those levels, the AMT is unlikely to affect you. If you’re claiming large deductions or credits and your income approaches these thresholds, run the AMT calculation or work with a tax professional to make sure your savings aren’t clawed back.

1
Internal Revenue Service. Tax Credits for Individuals: What They Mean and How They Can Help Refunds
2
Internal Revenue Service. Topic No. 456, Student Loan Interest Deduction
3
Office of the Law Revision Counsel. 26 USC 103 – Interest on State and Local Bonds
4
Internal Revenue Service. Refundable Tax Credits
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Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
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Internal Revenue Service. American Opportunity Tax Credit
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Internal Revenue Service. Child Tax Credit
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Internal Revenue Service. Qualifying Child Rules
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Internal Revenue Service. Residential Clean Energy Credit
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Internal Revenue Service. Audit Techniques Guide: Credit for Increasing Research Activities – Qualified Research Activities
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Internal Revenue Service. Work Opportunity Tax Credit
12
Office of the Law Revision Counsel. 26 USC 39 – Carryback and Carryforward of Unused Credits
13
Internal Revenue Service. About Form 1040, U.S. Individual Income Tax Return
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Internal Revenue Service. About Form 8863, Education Credits (American Opportunity and Lifetime Learning Credits)
15
Internal Revenue Service. Instructions for Form 5695 (2025)
16
Internal Revenue Service. Instructions for Form 8863 (2025)
17
Internal Revenue Service. Time IRS Can Assess Tax
18
Internal Revenue Service. Refunds
19
Office of the Law Revision Counsel. 26 U.S. Code 6676 – Erroneous Claim for Refund or Credit
20
Office of the Law Revision Counsel. 26 U.S. Code 6662 – Imposition of Accuracy-Related Penalty
21
Internal Revenue Service. Topic No. 556, Alternative Minimum Tax