What a tax credit actually does

A tax credit is a dollar-for-dollar reduction in the taxes you owe. If you owe $2,000 in federal income tax and you have a $500 tax credit, your tax bill drops to $1,500. That is different from a tax deduction, which reduces the income that gets taxed in the first place.

The IRS recognizes two types of credits. A refundable credit can give you money back even if you do not owe any tax — if your credit is larger than what you owe, the difference comes to you as a refund. A nonrefundable credit can only reduce your tax bill to zero; any amount left over disappears.

Credits exist because Congress wants to encourage specific behaviors or help specific groups of people. The Earned Income Tax Credit rewards people who work but earn modest wages. The Child Tax Credit puts money back in the hands of parents. Education credits offset tuition costs. Each credit has its own rules about who can claim it and how much it is worth.

Key Takeaways

  • A tax credit cuts your tax bill dollar-for-dollar, so a $1,000 credit means you pay $1,000 less in taxes.
  • Refundable credits can return money to you even if you owe no tax, while nonrefundable credits can only reduce what you owe to zero.
  • You claim credits on your tax return using specific forms and schedules that match each credit type.
  • Some credits phase out as your income rises, meaning you receive less or nothing if you earn above a certain threshold.

Refundable vs. nonrefundable credits

The difference between these two types matters most when your credit is larger than your tax bill. Suppose you owe $300 in tax and you have a $500 refundable credit. You pay zero tax, and the IRS sends you a check for $200. With a $500 nonrefundable credit in the same situation, you pay zero tax but receive no refund — the extra $200 credit simply vanishes.

The Earned Income Tax Credit and the Additional Child Tax Credit are refundable, which is why they reach people who earn very little and owe little or no tax. The Child Tax Credit itself is partially refundable (up to $1,700 per child in recent years, though this amount changes). The Lifetime Learning Credit and the American Opportunity Credit are nonrefundable, though the American Opportunity Credit is partially refundable up to $1,000 per student.

When you file your return, the IRS applies nonrefundable credits first to bring your tax bill down. Then it applies refundable credits, which can push your bill below zero and trigger a refund. This order matters if you have both types.

Common credits and how they work

The Earned Income Tax Credit (EITC) is a refundable credit for people who work but earn below a certain income threshold. The credit amount depends on your income, filing status, and number of children. A single person with no children might receive a few hundred dollars; a married couple with three children could receive several thousand. You claim it on Schedule EIC or through your tax software.

The Child Tax Credit provides up to $2,000 per child under age 17 (the amount is set by law and can change). You must have a valid Social Security number for each child, and the credit phases out if your income exceeds $400,000 for married filers or $200,000 for single filers. You report it on Schedule 8812.

Education credits include the American Opportunity Credit (up to $2,500 per student per year for the first four years of college) and the Lifetime Learning Credit (up to $2,000 per return, not per student). You cannot claim both for the same student in the same year. Both require Form 8863 and proof of tuition paid.

The Saver's Credit rewards people who save for retirement. If you contribute to a traditional or Roth IRA, a 401(k), or certain other retirement accounts and your income is below a set limit, you may receive a credit of 10 to 50 percent of what you contributed. You claim it on Form 8880.

Income limits and phase-outs

Most credits shrink or disappear as your income rises. This is called a phase-out. The EITC, for example, reaches its maximum at a certain income level, then decreases gradually until it hits zero at a higher threshold. For 2023, a single person with one child could claim the full EITC if their income was below roughly $40,000; the credit began to shrink above that point and was gone entirely above roughly $46,000.

These income thresholds change every year because they are adjusted for inflation. The IRS publishes updated limits each January. If your income is close to a phase-out boundary, a small raise or a bonus could reduce or eliminate a credit you were counting on.

Some credits also have other limits. The Child Tax Credit requires that each child have a valid Social Security number issued before the tax return is filed. Education credits require that you or your dependent actually paid tuition and attended an accredited school. The Saver's Credit has income limits and also requires that you did not claim certain other credits in the same year.

How to claim a credit on your tax return

You claim credits by filing the correct form or schedule along with your main tax return (Form 1040). Each credit has its own form. The EITC uses Schedule EIC. The Child Tax Credit uses Schedule 8812. Education credits use Form 8863. The Saver's Credit uses Form 8880.

If you use tax software, the program usually walks you through questions about your situation and automatically includes the right forms if you may have access to. If you file by hand or with a tax preparer, you or they will need to know which credits you are may have access to to claim and gather the required documents — pay stubs, tuition statements, proof of retirement contributions, Social Security numbers, and so on.

You must file a complete return to claim a credit. You cannot just send in a form; the IRS needs your income information, filing status, and dependent information to verify that you meet the rules. If you file electronically, the software checks for common errors before you submit. If you file on paper, errors can slow down processing or trigger an audit.

What happens if you claim a credit you do not may have access to for

If the IRS finds that you claimed a credit incorrectly, they will recalculate your tax and send you a bill for the difference, plus interest. If the error was large or repeated, they may also assess a penalty. The penalty for claiming a credit you do not may have access to for is usually 20 percent of the underpaid tax.

The most common mistakes are claiming the EITC with income above the limit, claiming the Child Tax Credit for a child who does not have a valid Social Security number, or claiming education credits when the student did not attend an accredited school or the expenses were paid by a scholarship. The IRS matches Social Security numbers and cross-checks income with employers and financial institutions, so these errors are often caught.

If you receive a notice that you owe money back, you have the right to respond and provide documentation. If you believe the IRS made an error, you can file an appeal. If you cannot pay the full amount at once, you can set up a payment plan.

Credits versus deductions

A tax credit and a tax deduction both reduce what you owe, but they work differently. A deduction reduces your taxable income. If you earn $60,000 and claim a $5,000 deduction, your taxable income becomes $55,000. The tax savings depend on your tax bracket — if you are in the 22 percent bracket, a $5,000 deduction saves you $1,100.

A credit reduces your tax bill directly. A $5,000 credit saves you $5,000 no matter what your tax bracket is. Because of this, credits are generally more valuable than deductions of the same dollar amount, especially for people in lower tax brackets.

You can claim both deductions and credits on the same return. Many people claim the standard deduction (a flat amount based on filing status) and also claim one or more credits. Some credits, like education credits, actually reduce the amount of education expenses you can deduct, so you need to coordinate them carefully.

Frequently Asked Questions

Can I claim more than one credit on my tax return?

Yes. You can claim the EITC, the Child Tax Credit, education credits, and the Saver's Credit all on the same return if you meet the rules for each one. However, some credits cannot be claimed together — for example, you cannot claim both the American Opportunity Credit and the Lifetime Learning Credit for the same student in the same year.

What if my income changes after I file?

If your income was lower when you filed than it turns out to be at the end of the year, you may have claimed a credit you do not actually may have access to for. The IRS will recalculate and send you a bill. If your income was higher when you filed but lower at year-end, you may be may have access to to a larger credit; you can file an amended return to claim it.

Do I need to keep receipts or proof when I claim a credit?

You do not send receipts with your return, but you must keep them for your records. The IRS can ask to see proof of tuition, retirement contributions, dependent Social Security numbers, or other documentation if they audit your return. Keep records for at least three years after you file.

What is the difference between a tax credit and a tax refund?

A tax credit reduces what you owe. A refund is money the IRS sends you because you paid more tax than you actually owed (usually through withholding from your paycheck). A refundable credit can create a refund if the credit is larger than your tax bill, but they are not the same thing.

Can I claim a credit if I do not owe any tax?

Only if the credit is refundable. The EITC and the Additional Child Tax Credit are refundable, so you can claim them even if you owe zero tax and receive a refund. Nonrefundable credits like the Lifetime Learning Credit can only reduce your tax bill to zero; they cannot create a refund.