A tax credit reduces the taxes you owe, dollar for dollar

A tax credit is money the government subtracts directly from your tax bill. If you owe $2,000 in taxes and you have a $1,500 tax credit, you pay $500. A credit is different from a deduction, which only reduces the income the government counts — a $1,500 deduction might save you $300 or $450 depending on your tax bracket, but a $1,500 credit always saves you $1,500.

Tax credits exist because Congress wants to encourage certain behaviors or help certain households. The Earned Income Tax Credit rewards people who work but earn modest wages. The Child Tax Credit puts money back in the pockets of parents. Other credits cover education costs, energy-efficient home improvements, or adoption expenses. The key point: the government is returning money to you through your tax return, not through a separate check or program.

You claim tax credits when you file your taxes, usually by filling out a specific form and attaching it to your return. Some credits are "refundable," meaning if the credit is larger than what you owe, the government sends you the difference. Others are "non-refundable," meaning they can only reduce your tax bill to zero — any extra credit is lost. This distinction matters enormously if you are counting on a credit to cover a shortfall.

Key Takeaways

  • A tax credit subtracts directly from your tax bill, so a $1,000 credit saves you $1,000, unlike a deduction which saves you only a portion of that amount.
  • Refundable credits can result in a refund if they exceed what you owe in taxes; non-refundable credits can only reduce your bill to zero.
  • You claim tax credits on your tax return by filing the required forms, and you must meet income and other requirements set by the IRS.
  • Some credits, like the Earned Income Tax Credit, are designed to help lower-income working households; others target specific expenses like education or childcare.

Refundable vs. non-refundable credits

The difference between these two types determines whether you walk away with money or simply pay less. A refundable credit means the IRS will send you the overage if your credit is bigger than your tax bill. The Earned Income Tax Credit and the Additional Child Tax Credit are refundable — millions of households receive refunds because these credits exceed what they owe. If you owe $800 and your Earned Income Tax Credit is $2,000, you get a $1,200 refund.

A non-refundable credit can only reduce your tax bill to zero. If you owe $500 and you have a $1,200 non-refundable education credit, the credit wipes out your $500 bill, but you do not receive the remaining $700. That money is gone. The Child and Dependent Care Credit and the Lifetime Learning Credit are non-refundable, though some education credits have refundable portions.

Before you claim a credit, find out whether it is refundable or non-refundable. The IRS form instructions and the IRS website both state this clearly. If you are counting on a credit to produce a refund, a non-refundable credit will disappoint you.

Income limits and who can claim each credit

Most tax credits come with income limits. The Earned Income Tax Credit phases out as your income rises — in 2024, the maximum income for a single person with no children was around $17,000, and for a married couple with three children it was around $63,398, but these numbers change yearly. The Child Tax Credit begins to reduce when your income exceeds $400,000 for married filers and $200,000 for single filers. Other credits have their own thresholds.

Income limits exist because credits are designed to help households below a certain earnings level. If your income is too high, you do not may have access to, even if you meet every other requirement. The IRS calculates your Modified Adjusted Gross Income (MAGI) to determine this — it is not always the same as your total income, so read the form instructions carefully.

Beyond income, each credit has its own rules. The Child Tax Credit requires you to claim the child as a dependent and provide their Social Security number. The education credits require you to have paid may have access to education expenses. The Earned Income Tax Credit requires you to have earned income from work. You cannot claim a credit you do not meet the requirements for, even if you think the policy is unfair.

How to claim a tax credit on your return

You claim a tax credit by filing the correct IRS form along with your tax return. The Earned Income Tax Credit uses Schedule EIC. The Child Tax Credit uses Schedule 8812. Education credits use Form 8863. Each form asks for specific information — your income, the dependent's Social Security number, the amount of may have access to expenses — and the form itself calculates how much credit you receive.

If you use tax software, the software walks you through questions and fills out the forms for you. If you file by hand, you download the form from IRS.gov, fill it out, and attach it to your return. If you use a tax preparer, they handle this step. The key is that you must file the form; simply mentioning the credit in a note does not count.

You file your tax return and the forms together, either electronically or by mail. The IRS processes your return, checks that you meet the requirements, and either reduces your bill or sends you a refund. If the IRS questions whether you may have access to, they will contact you and ask for proof — usually documents like pay stubs, receipts, or Social Security numbers.

Common tax credits for households with modest income

The Earned Income Tax Credit (EITC) is the largest tax credit for working people with low to moderate income. It rewards people who work but earn less than a certain amount. The credit phases in as your income rises, reaches a maximum, then phases out. For 2024, a single person with no children could receive up to $600; a married couple with three children could receive up to $3,995. The exact amount depends on your income and family structure.

The Child Tax Credit provides up to $2,000 per child under age 17. You must claim the child as a dependent and provide their Social Security number. The credit is partially refundable — up to $1,700 per child can come back to you as a refund, though this amount changes yearly. Parents with higher incomes receive smaller credits.

The Child and Dependent Care Credit covers costs you paid for childcare or adult dependent care so you could work. You can claim up to $3,000 in expenses for one dependent or $6,000 for two or more. The credit is 20 to 35 percent of those expenses, depending on your income. This credit is non-refundable.

The Saver's Credit rewards people who save for retirement. If you contributed to a traditional IRA, a Roth IRA, or a workplace retirement plan and your income is below a certain level, you may receive a credit of 10 to 50 percent of your contribution, up to $1,000. This credit is non-refundable and often overlooked.

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

If you claim a credit and the IRS determines you do not meet the requirements, they will disallow the credit and send you a bill for the taxes you should have paid, plus interest. If the error was unintentional, you usually do not face penalties, but you do owe the money. If the IRS suspects fraud — for example, claiming a child who is not your dependent — penalties can be steep, up to 75 percent of the underpaid tax.

The IRS matches information on your return against other documents they receive. If you claim a child as a dependent, they check that the child's Social Security number matches and that no one else claimed that child. If you claim education credits, they cross-check against records from colleges and universities. Mismatches trigger audits.

The safest approach is to read the form instructions carefully, gather the documents that prove you meet the requirements, and keep those documents for at least three years. If you are unsure whether you may have access to, a tax preparer or the IRS can help clarify.

Frequently Asked Questions

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

It depends on whether the credit is refundable. If you have a refundable credit like the Earned Income Tax Credit and you do not owe taxes, the IRS sends you the credit as a refund. If the credit is non-refundable, you cannot use it if you have no tax bill, and the unused portion is lost.

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

A tax credit reduces your tax bill dollar for dollar. A tax deduction reduces the income the government counts, so it saves you only a portion of the deduction amount. A $1,000 credit saves you $1,000; a $1,000 deduction might save you $100 to $370 depending on your tax bracket.

Do I have to file taxes to claim a tax credit?

Yes, you must file a tax return to claim a credit. Even if you have no tax bill, you file to receive a refundable credit. If you do not file, you do not receive the credit, and you cannot claim it in a later year.

Can I claim the same tax credit every year?

Most credits can be claimed every year if you meet the requirements that year. The Earned Income Tax Credit, Child Tax Credit, and education credits are annual credits. However, some credits, like the Lifetime Learning Credit, have limits on how many years you can claim them.

What if I made a mistake on my tax return and claimed the wrong credit?

You can file an amended return using Form 1040-X to correct the error. You have generally three years from the original filing date to amend. If you owe money as a result of the correction, you pay it with the amended return. If you are owed a refund, the IRS sends it to you.