Tax credits are often more valuable than deductions because a credit reduces tax dollar for dollar, while a deduction only reduces taxable income. IRS guidance explains this distinction directly and notes that some credits can even increase a refund if they are refundable.
For 2025 returns filed in 2026, several credits are especially easy to overlook. Some are missed because taxpayers assume they earn too little or too much. Others are missed because the rules changed, the credit is partially refundable, or the taxpayer does not realize a dependent or expense qualifies.
Below are some of the most commonly missed or misunderstood credits for 2025.
1. Earned Income Tax Credit
The Earned Income Tax Credit, or EITC, is one of the most frequently missed credits. The IRS specifically notes that millions of eligible workers fail to claim it, including grandparents raising grandchildren, veterans, self-employed individuals, workers without qualifying children, recently divorced individuals, and taxpayers whose income is below the filing threshold.
Why people miss it
Many taxpayers wrongly assume the EITC is only for families with children. That is not true. IRC allows a credit for eligible individuals with or without qualifying children, although the rules and amounts differ.
Basic 2025 structure
Under IRC, the credit amount depends on earned income, adjusted gross income, filing status, and number of qualifying children.
IRC provides these statutory percentages:
- 34% credit rate for one qualifying child,
- 40% for two qualifying children,
- 45% for three or more qualifying children,
- 7.65% for no qualifying children.
The statute also sets earned income amounts and phaseout amounts, with a joint-return phaseout increase.
Key eligibility rules
IRC says an eligible individual generally must either:
- have a qualifying child for the taxable year, or
- if no qualifying child, meet residence, age, and dependency rules.
For taxpayers without qualifying children, the statute generally requires:
- principal place of abode in the United States for more than half the year,
- age 25 but under 65 by year-end,
- and not being another taxpayer’s dependent.
Married taxpayers generally must file jointly, subject to the separated-spouse rule in IRC.
Important limitations
IRC denies the credit if disqualified income exceeds $10,000, adjusted for inflation.
IRC also requires taxpayer identification numbers, and the statute’s identification-number rule is strict.
2. Child Tax Credit and Additional Child Tax Credit
The Child Tax Credit remains one of the most important family credits, but it is still often misunderstood. IRS guidance notes that taxpayers may qualify if they have a dependent child under age 17 who is a U.S. citizen, U.S. national, or U.S. resident and has a Social Security number.
2025 amount
For taxable years beginning after 2017, IRC substitutes a $2,200 credit amount for the old $1,000 amount.
Publication 17 confirms that for 2025 the maximum CTC is $2,200 per qualifying child.
Income phaseout
IRC sets the threshold amount at:
- $400,000 for joint returns,
- $200,000 for other filers.
Refundable portion
IRC provides the refundable component, and IRC caps the refundable amount per qualifying child.
Publication 17 states that for 2025 the maximum additional child tax credit is $1,700 per qualifying child.
Why people miss it
Taxpayers often miss this credit because:
- they assume low income means they cannot benefit,
- they do not realize part of the credit may be refundable,
- they fail the SSN timing rule,
- or they overlook that foster children and certain extended family members may qualify if dependency rules are met.
SSN rules are strict
IRC requires:
- the taxpayer’s SSN, or for a joint return at least one spouse’s SSN,
- and the qualifying child’s SSN, issued before the due date of the return.
Publication 17 emphasizes that if the taxpayer does not have the required SSN by the due date, the CTC and ACTC cannot be claimed on either the original or amended return.
3. Credit for Other Dependents
Many taxpayers focus only on the child tax credit and miss the separate credit for other dependents.
IR increases the credit by $500 for each dependent described in who is not a qualifying child for the child tax credit.
Publication 17 confirms that the credit for other dependents can be up to $500 per eligible dependent.
Who may qualify
This credit can apply to:
- older children who are 17 or older,
- college students claimed as dependents,
- elderly parents,
- or other qualifying relatives.
Why people miss it
Taxpayers often assume that if a dependent does not qualify for the child tax credit, there is no credit at all. That is incorrect. IRC even says that a qualifying child who fails the CTC solely because of the SSN rule may still be treated as a dependent for this $500 credit.
4. Child and Dependent Care Credit
This credit is often missed because taxpayers confuse it with the child tax credit. IRS guidance specifically warns not to confuse the two.
What it covers
The IRS explains that taxpayers who paid someone to care for a child, spouse, or dependent so they could work, look for work, or attend school full time may qualify.
Why people miss it
Common reasons include:
- assuming daycare is the only qualifying expense,
- not realizing care for a disabled spouse or dependent may qualify,
- or failing to obtain the provider’s identifying information.
IRS guidance notes that in most cases the taxpayer needs the care provider’s SSN or TIN.
5. American Opportunity Credit
The American Opportunity Tax Credit is another credit taxpayers frequently miss, especially families with college students.
IRS guidance explains that the credit applies to qualified education expenses for the first four years of higher education and can be worth up to $2,500 per eligible student.
Refundable feature
The IRS notes that 40% of the unused credit may be refundable, up to $1,000.
Income limits
IRS guidance states that the full credit is available if income is:
- $80,000 or less for single taxpayers,
- $160,000 or less for married filing jointly, with phaseout above those levels and full phaseout at:
- $90,000 single,
- $180,000 joint.
Why people miss it
Taxpayers often miss it because:
- they assume scholarships eliminate eligibility,
- they confuse it with the Lifetime Learning Credit,
- or they do not realize it is partially refundable.
6. Saver’s Credit
The retirement savings contributions credit is one of the most overlooked credits in the Code.
Older IRS guidance describes it as a credit for low- and moderate-income workers who contribute to an IRA or workplace retirement plan.
Publication 17 also lists the retirement savings contribution credit among the credits that may reduce tax directly.
Why people miss it
Taxpayers often think retirement contributions only produce a deduction. In fact, eligible taxpayers may receive both:
- the normal tax benefit of the contribution itself, and
- a separate credit.
Practical point
This credit is especially easy to miss for taxpayers contributing to IRAs or salary-deferral plans who assume their income is too low to matter. In reality, lower and moderate income is exactly where this credit is targeted.
7. Adoption Credit
The adoption credit is often missed because taxpayers assume it is unavailable unless the adoption is finalized in the same year or because they do not realize part of the benefit may be refundable under current law.
The 2025 OBBBA summary states that IRC was changed so that up to $5,000 of the adoption credit is refundable, with inflation adjustments, for taxable years beginning after December 31, 2024.
Why people miss it
Taxpayers often overlook:
- qualified adoption expenses paid before finalization,
- special-needs adoption rules,
- and employer-provided adoption assistance coordination. The sources here confirm the refundable enhancement for 2025, but detailed computational rules would still require the underlying rules and forms.
8. Premium Tax Credit
The premium tax credit is often missed or miscomputed by taxpayers who buy health insurance through the Marketplace.
IRS guidance identifies the premium tax credit as one of the credits taxpayers may be eligible to claim.
Publication 17 lists the premium tax credit among the credits that may reduce tax and notes that net premium tax credit is treated as a payment in the refund-or-balance-due calculation.
Why people miss it
Taxpayers often miss it because:
- they assume advance payments fully settled the issue,
- they do not reconcile advance payments correctly,
- or they do not realize they may still qualify when filing.
There are also important 2026 and 2027 statutory changes under OBBBA affecting eligibility verification, alien-status rules, special enrollment periods, and recapture limits, but for 2025 returns the existing rules still matter.
9. Employer-Provided Child Care Credit and Other Business Credits Small Employers Miss
For business owners rather than individual wage earners, some credits are missed because taxpayers do not realize they are part of the general business credit system.
IRC lists many credits included in the general business credit, including:
- the employer-provided child care credit under,
- the research credit under,
- the work opportunity credit under,
- and many others.
Why these are missed
Small businesses often miss credits because:
- they focus only on deductions,
- they do not file Form 3800,
- or they assume unused credits are lost.
But IRC and generally allow unused business credits to be carried back one year and forward 20 years, subject to exceptions.
The sources also note that taxpayers generally cannot elect out of the carryback for unused business credits.
10. Energy Credits That Still Matter for 2025
Energy credits are an area where timing matters. Some taxpayers may miss credits simply because they assume they were repealed immediately, while others may wrongly claim credits that have already terminated.
Under the 2025 OBBBA summary:
- the clean vehicle credit under IRC terminates for vehicles acquired after September 30, 2025,
- the previously owned clean vehicle credit under also terminates after September 30, 2025,
- the energy efficient home improvement credit under terminates for property placed in service after December 31, 2025,
- and the residential clean energy credit under terminates for expenditures made after December 31, 2025.
Why people miss them
Some taxpayers may still qualify in 2025 if they act before the termination date, but they may wrongly assume the credits are already gone. Others may miss them because they do not understand that placed-in-service or acquisition timing controls eligibility.
Key reasons taxpayers miss credits in general
Across these credits, the same patterns show up repeatedly:
- assuming low income means no benefit,
- confusing refundable and nonrefundable credits,
- missing SSN or TIN requirements,
- failing to file because income is below the filing threshold,
- overlooking credits tied to dependents who are not young children,
- and not reconciling advance payments or third-party information correctly.
IRS guidance specifically notes that some taxpayers who are not otherwise required to file should still file in order to claim refundable credits.
Final practical takeaway
For 2025, the credits most Americans are likely to miss include:
- the Earned Income Tax Credit,
- the Child Tax Credit and Additional Child Tax Credit,
- the Credit for Other Dependents,
- the Child and Dependent Care Credit,
- the American Opportunity Credit,
- the Saver’s Credit,
- the Adoption Credit,
- and, depending on facts, the Premium Tax Credit and certain energy credits.
