About 17 states and the District of Columbia run their own state child tax credit, with amounts that stretch from under $100 to more than $3,000 per child depending on where you live, how old your child is, and what your household earns. These credits sit on top of the federal child tax credit rather than replacing it, so an eligible family can claim both in the same tax year for the same child. What varies dramatically by state is the dollar amount, the income cutoff, and whether the credit is refundable, which decides whether you receive a check or simply owe less tax.
States That Offer a Child Tax Credit
State credits fall into two buckets, and the split matters more than most families realize. A refundable credit pays you the full amount even if you owe no state income tax. A non-refundable credit can only knock your state tax bill down to zero, and any leftover credit is gone.
States with refundable child tax credits: California, Colorado, Illinois, Maine, Maryland, Massachusetts, Minnesota, New Jersey, New Mexico, New York, Oregon, Vermont, and the District of Columbia. States with non-refundable credits: Arizona, Georgia, Idaho, Oklahoma, and Utah.1National Conference of State Legislatures. Child Tax Credit Overview If your state is on neither list, it does not currently offer a standalone child tax credit, though it may run other family-related deductions under a different name.
Consider what the refundable-versus-non-refundable line does in practice. A family that owes $200 in state tax with a $1,750 refundable credit gets $1,550 back as a check or direct deposit. That same family with a $1,750 non-refundable credit simply owes nothing, and the remaining $1,550 disappears.
How Much the Credit Is Worth in Each State
Amounts and income limits differ enough that the value of the credit really does depend on your ZIP code. A handful of examples show the range:
- California’s Young Child Tax Credit is worth up to $1,189 per eligible return for tax year 2025, aimed at households with earned income of $30,000 or less. It is fully refundable.
- Colorado’s Family Affordability Tax Credit uses a tiered income schedule with different amounts for children under 6 and children ages 6 to 16. For the lowest-income households, with AGI of $15,000 or less, the credit reaches $3,273 per young child. It phases down through multiple brackets and cuts off entirely at $85,000 for single filers and $96,000 for joint filers.
- Minnesota pays $1,750 per qualifying child with no cap on the number of children. The credit is refundable and starts to phase out at $31,950 for single filers and $37,910 for married filing jointly.
- New York’s Empire State Child Credit was expanded for tax years 2026 and 2027 to $1,000 per qualifying child under age 4 and $500 per qualifying child between 4 and 16. It phases down by $16.50 for every $1,000 of AGI above $75,000 for single filers or $110,000 for married filing jointly.
- Massachusetts pays $440 per dependent under its Child and Family Tax Credit. Dependents include children under 13, adults 65 and older, and individuals with disabilities.
One note on Colorado: older guidance sometimes described its credit as a percentage of the federal amount. The current Family Affordability Tax Credit is a standalone dollar figure tied to income brackets and the child’s age, with no direct link to the federal credit’s value.1National Conference of State Legislatures. Child Tax Credit Overview
States generally use adjusted gross income or earned income to set your credit amount and determine phase-out. Some reduce the credit gradually as income rises; others set a hard cliff where the credit drops to zero. Because income cutoffs usually differ between single and joint filers, your filing status directly affects what you receive.
Who Qualifies
Most states borrow the federal definition of a qualifying child. The child has to be your son, daughter, stepchild, foster child, or a descendant of one of those. Siblings and their descendants can also qualify if they live with you. The child must have lived in your home for more than half the tax year and cannot have provided more than half of their own financial support that year.2Office of the Law Revision Counsel. 26 USC 24 – Child Tax Credit A common mix-up: you don’t need to have paid more than half of the child’s support. That’s the test for a qualifying relative, not a qualifying child. For a qualifying child, what matters is shared living, not who paid the bills.
Age cutoffs are less predictable than you might think. The federal credit uses age 17, and many states follow suit. But Illinois limits its credit to children under 12, Massachusetts extends its family credit to dependents under 13 along with disabled individuals of any age, and Arizona caps eligibility at under 17. Some states extend benefits for children with permanent disabilities regardless of age. Check your specific state’s rules rather than assuming the federal age line applies.
Residency rules typically require both you and the child to keep a primary home in the state for more than six months of the tax year. Part-year residents may qualify for a prorated credit in some states. The child must also be claimed as a dependent on your state return to trigger the credit.
Social Security Numbers, ITINs, and Immigrant Families
Every qualifying child needs a valid identification number, either a Social Security Number or an Individual Taxpayer Identification Number. At the federal level, the Tax Cuts and Jobs Act required a work-authorized SSN for the federal credit, but that requirement is set to expire. Beginning with tax year 2026, both ITINs and SSNs will serve as valid identification for the federal credit absent new legislation.3Congressional Research Service. Noncitizen Eligibility for the Child Tax Credit
States are already more inclusive on this point. Refundable state credits generally allow ITIN filers to claim the benefit, which opens the credit to immigrant families who may have been shut out of the federal version. If you file with an ITIN, confirm your state’s specific rules, but the trend runs strongly toward eligibility.
You Can Claim Both the State and Federal Credit
State child tax credits and the federal child tax credit are separate programs. Claiming one does not reduce or cancel the other. A family with a qualifying child can receive the full federal credit on their federal return and the full state credit on their state return for the same child in the same year.
Many states do tie their eligibility rules to the federal definition of a qualifying child, so age, relationship, and residency tests often mirror the federal standard. Idaho and New Mexico go further and explicitly reference Section 24(c) of the Internal Revenue Code. If you qualify for the federal credit, there’s a strong chance you also qualify for your state’s, though income limits and dollar amounts will differ.
The federal child tax credit was $2,200 per qualifying child for tax year 2025.4Internal Revenue Service. Refundable Tax Credits The 2026 amount depends on whether Congress extends or modifies the expiring Tax Cuts and Jobs Act provisions. Whatever happens federally, your state credit remains available under your state’s own rules.
Documents to Have Ready
Before filing, pull the following together for each qualifying child:
- An SSN or ITIN for every child you plan to claim.
- W-2 forms, 1099 statements, and other income records, since these decide where you fall in the phase-out range.
- Proof of residency, such as school enrollment records or medical bills showing the child lived at your address for more than half the year. You may never be asked for these, but a state audit turns quickly on whether you can produce them.
Keep supporting records for at least three years after filing. The IRS generally audits returns filed within the past three years and can go back six in some situations,5Internal Revenue Service. IRS Audits and most state revenue departments follow similar timelines.
Each state has its own form that attaches to your state income tax return, asking for each child’s name, identification number, date of birth, and relationship to you, then walking you through a calculation based on your income. Accuracy matters. Automated systems flag returns where the numbers don’t match employer-reported data, and a mismatch can delay your refund by weeks.
Filing Deadlines and Refund Timing
Most state filing deadlines match the federal April 15 date.6Internal Revenue Service. When to File If April 15 falls on a weekend or holiday, the deadline shifts to the next business day. Missing the deadline does not forfeit the credit. You can still file late, though you may owe late-filing penalties or interest on any unpaid balance. If the state owes you a refund, late filing generally carries no penalty beyond the delay itself.
Electronic filing is faster and catches errors sooner. Most states offer a free e-filing portal or work with third-party tax software. Refunds from e-filed returns typically arrive in three to six weeks; paper returns take longer. Most state tax agencies run an online tool where you can track refund status after filing.
Free Help Filing the Return
If your household income is $69,000 or less, the IRS Volunteer Income Tax Assistance program prepares both federal and state returns for free, including state child tax credit forms. VITA sites are staffed by IRS-certified volunteers. The Tax Counseling for the Elderly program offers similar free assistance for taxpayers age 60 and older, focused on retirement-related questions.7Internal Revenue Service. Free Tax Return Preparation for Qualifying Taxpayers You can find a location through the IRS site locator.
For families whose state credit is refundable, filing is the only way to collect. Skipping a return because you owe no state tax means leaving the payment on the table.
If You Missed the Credit in a Prior Year
If you filed and forgot to claim the credit, or entered wrong information, file an amended state return. Each state has its own amendment form and process. At the federal level, amended returns use Form 1040-X, and the IRS notes that federal changes may affect state tax liability, advising you to contact your state agency for state-specific instructions.8Internal Revenue Service. File an Amended Return
Most states allow amendments within three to four years of the original filing deadline, though the exact window varies. The credit does not carry forward automatically. If you discover you were eligible in a past year and never claimed it, you have to go back and file for that year specifically. With some state credits above $1,000 per child, the amendment is worth the paperwork.
Penalties for Claiming a Credit You Don’t Qualify For
Claiming a child tax credit you aren’t entitled to costs more than just paying the money back. At the federal level, the IRS can bar you from claiming the child tax credit for two years if the claim was due to reckless or intentional disregard of the rules. If the claim was fraudulent, the ban extends to ten years.2Office of the Law Revision Counsel. 26 USC 24 – Child Tax Credit During the ban you receive no credit at all, even for children who would otherwise qualify. State revenue departments enforce similar rules. Audits often start when return information doesn’t match employer-reported data, when a dependent appears on more than one return, or when income figures look inconsistent. If audited, expect to produce the identification, residency, and school records described earlier; taxpayers who can’t substantiate their claim face denial of the credit plus interest on any refund already paid out.