Most parents know the Child Tax Credit exists but couldn't tell you the exact number, and that's usually fine — until a raise, a new kid, or a divorce changes your situation and you actually need to know where you stand. The rules got a real update recently too, so even people who checked a couple of years ago are probably working off stale numbers.
What Is the Child Tax Credit?
The Child Tax Credit directly reduces your federal tax liability dollar-for-dollar — unlike a deduction which only reduces taxable income. A $2,200 credit reduces your tax bill by exactly $2,200. It's been expanded and modified repeatedly since its 1997 introduction, and OBBBA's 2025 overhaul made the current structure permanent rather than set to expire. One rule worth flagging: since 2025, at least one parent (or the filer, on a single return) must have a work-eligible Social Security number to claim the credit — a change that affects some mixed-status families who previously qualified.
2026 Credit Amount
The One Big Beautiful Bill Act made the expanded credit permanent and raised it: for 2026, it's up to $2,200 per qualifying child under age 17. Up to $1,700 of this is refundable as the Additional Child Tax Credit (ACTC) — meaning families who owe little or no federal tax can still receive it as a refund. Both figures now index for inflation going forward, so they'll tick up gradually in future years instead of staying frozen. The credit is per child, not per family — two qualifying children means up to $4,400 total.
| Children | Max CTC | Max Refundable (ACTC) |
|---|---|---|
| 1 child | $2,200 | $1,700 |
| 2 children | $4,400 | $3,400 |
| 3 children | $6,600 | $5,100 |
Qualifying Child Requirements
To qualify for the CTC, a child must meet ALL of these tests: Age: under 17 at the end of the tax year. Relationship: your child, stepchild, foster child, sibling, or descendant of any. Dependent: claimed as a dependent on your return. Citizenship: US citizen, national, or resident alien. Residency: lived with you for more than half the year. Support: did not provide more than half of their own support. Joint return: did not file a joint return (unless only to claim a refund).
Income Phase-Outs
The credit begins phasing out above these income thresholds (2026): $200,000 for single/head of household filers and $400,000 for married filing jointly — both now permanent under OBBBA rather than temporary. The credit reduces by $50 for every $1,000 of income above the threshold. Take a married couple with 2 children earning $410,000: that's $10,000 over the threshold, so $500 comes off their $4,400 credit, leaving them $3,900.
💡 The phase-out is gradual enough that most middle- and even upper-middle-income families receive the full credit. For a couple with 2 kids, the credit doesn't fully disappear until AGI passes roughly $488,000.
The Additional Child Tax Credit (Refundable Portion)
The ACTC makes up to $1,700 per child refundable — you can receive this amount even if you owe no federal income taxes. The ACTC is calculated as 15% of earned income above $2,500. A family with $30,000 in earned income and 2 children: ($30,000 − $2,500) × 15% = $4,125. Limited to $1,700 × 2 children = $3,400 maximum ACTC. They'd receive the full $3,400 as a refund even if their tax liability is $0.
Quick Checklist
- Verify every qualifying child claim — age, residency, and dependency tests all apply
- File your return — even if income is low — to claim the refundable ACTC
- Check if divorced/separated parents have the correct dependency allocation
- Claim the credit on Schedule 8812 (Credits for Qualifying Children)
- Keep records: school records, medical records, and utility bills showing the child lived with you
- Review the credit annually — amounts and phase-outs adjust for inflation
For informational purposes only. Not financial, tax, or legal advice. Consult a qualified professional before making major decisions.