A tax credit is a dollar-for-dollar reduction in the income tax you owe. If you owe $4,000 in federal income tax and you qualify for a $1,000 tax credit, your tax bill drops to $3,000. Tax credits are one of the most valuable tools in the tax code — far more valuable, dollar for dollar, than tax deductions.
Quick answer: what is a tax credit?
A tax credit reduces your tax bill directly. A $1,000 credit cuts $1,000 off what you owe. That’s different from a tax deduction, which only reduces the income that’s taxed in the first place — and is therefore worth much less.
Credits are designed by Congress to encourage certain behaviors: working, raising children, paying for college, buying energy-efficient appliances, saving for retirement. If you qualify, claim them — they’re money you’re leaving on the table otherwise.
Tax credit vs. tax deduction
This is the most common confusion in tax planning. A simple example:
| Scenario | Effect | Value of $1,000 |
|---|---|---|
| $1,000 tax credit | Reduces your tax bill directly | $1,000 |
| $1,000 tax deduction (22% bracket) | Reduces your taxable income by $1,000 | $220 |
A $1,000 credit is worth $1,000. A $1,000 deduction is worth only your marginal tax rate — so for someone in the 22% bracket, just $220. Credits are roughly 3–5 times more valuable than deductions of the same size.
See What Is a Tax Deduction? for the other side of this.
Refundable vs. nonrefundable credits
Not all tax credits are equal. The biggest distinction is whether the credit is refundable.
Refundable credits
Refundable credits can reduce your tax bill below zero. If your tax bill is $500 and you have a $2,000 refundable credit, you owe nothing — and the IRS sends you the extra $1,500 as a refund.
Examples of refundable credits include:
- Earned Income Tax Credit (EITC) — for low- and moderate-income workers
- Additional Child Tax Credit — the refundable portion of the Child Tax Credit
- American Opportunity Tax Credit — 40% refundable; for college costs
- Premium Tax Credit — for marketplace health insurance
Nonrefundable credits
Nonrefundable credits can wipe out your tax bill but can’t go below zero. If your tax bill is $500 and you have a $2,000 nonrefundable credit, your bill becomes $0 — but the extra $1,500 disappears. You don’t get it back.
Examples of nonrefundable credits include:
- Child and Dependent Care Credit — for childcare costs
- Saver’s Credit — for low- and middle-income retirement contributions
- Lifetime Learning Credit — for ongoing education costs
- Foreign Tax Credit — for taxes paid to other countries
- Residential Energy Credits — for solar panels and energy efficiency
Common federal tax credits
Child Tax Credit
Worth up to $2,200 per qualifying child under 17. Partially refundable. Phases out at higher incomes.
Earned Income Tax Credit (EITC)
For workers with low to moderate income. Fully refundable. The amount depends on your income, filing status, and number of qualifying children. For 2026, the EITC can be worth up to about $8,000 for families with three or more children.
American Opportunity Tax Credit (AOTC)
Up to $2,500 per eligible student per year for the first four years of college. 40% refundable. Covers tuition, fees, and required course materials.
Lifetime Learning Credit (LLC)
Up to $2,000 per tax return for ongoing education — courses to learn or improve job skills, even part-time. Nonrefundable. No four-year limit. Can be claimed by parents, students, or those returning to school later in life.
Saver’s Credit
Up to $1,000 ($2,000 if filing jointly) for contributions to retirement accounts — IRA, 401(k), 403(b), etc. Available to low- and middle-income filers. Nonrefundable.
Residential Clean Energy Credit
30% of the cost of qualified solar electric, solar water heating, geothermal, fuel cell, and battery storage. Nonrefundable. Excess can be carried forward to future years.
Energy Efficient Home Improvement Credit
Up to $1,200 per year (with some specific component limits) for things like efficient windows, doors, insulation, central air, and heat pumps.
Premium Tax Credit
Refundable credit that helps cover the cost of health insurance purchased through the marketplace. Can be received in advance (lower monthly premium) or as a lump sum on your tax return.
How tax credits work on your return
Tax credits are applied after your tax is calculated:
- Calculate your taxable income (income minus deductions).
- Calculate your tax based on the tax brackets.
- Apply nonrefundable credits to reduce the tax bill (but not below zero).
- Apply refundable credits next — these can reduce the bill below zero and generate a refund.
- Subtract taxes already paid through withholding or estimated payments.
- What’s left is your refund or balance due.
State tax credits
Many states offer their own tax credits on state income tax returns — often in addition to federal credits. Examples include state earned income credits, child care credits, college savings credits, and renter’s credits. Check your state’s tax website or ask a preparer.
How to claim tax credits
Most credits have specific forms or schedules:
- Child Tax Credit: Schedule 8812
- EITC: Schedule EIC (if you have qualifying children)
- Education credits: Form 8863
- Saver’s Credit: Form 8880
- Residential Energy Credit: Form 5695
- Premium Tax Credit: Form 8962
Tax software walks you through eligibility questions and fills out the forms. If you do your taxes by hand, the IRS instructions explain who qualifies.
Don’t miss credits you qualify for
Studies estimate that 20–25% of eligible filers don’t claim the EITC, leaving billions of dollars unclaimed each year. Common reasons people miss credits:
- They don’t file a tax return because their income is low enough they don’t have to — missing refundable credits that would have generated a refund anyway.
- They use tax software but skip questions thinking they don’t apply.
- Major life changes (new child, job loss, returning to school) open up credits they didn’t previously qualify for.
- They assume the credit is too complicated to be worth claiming.
If your income is modest, free tax preparation services like the IRS Volunteer Income Tax Assistance (VITA) program help filers find every credit they qualify for.
Further Reading
- What Is a Tax Deduction?
- What Is a Tax Refund?
- What Is a Tax Return?
- Child Tax Credit Explained
- How to File Your Taxes
- How to Get Tax Deductions
- Money Basics
This article is for general educational purposes only and does not constitute financial or tax advice. Individual situations vary. Consult a qualified tax or financial professional for guidance specific to your circumstances.
