The 2026 Child Tax Credit Is $2,200 — the $1,700 Refundable Cap, the $2,500 Earned-Income Floor, and the SSN Rule That Cuts Millions Out

One year ago, on July 4, 2025, the One Big Beautiful Bill Act (OBBBA) rewrote the Child Tax Credit. The headline was clean: $2,200 per child, made permanent. For 2026, that number holds — the credit stays at $2,200 per qualifying child (IRS — Child Tax Credit).

But the headline hides three things that decide whether you actually get $2,200:

1. Only $1,700 of it is refundable. If you owe little or no federal income tax, you can't collect the full $2,200 in cash.
2. There's a $2,500 earned-income floor and a 15% ramp — so the lowest earners get a fraction of the credit, not all of it.
3. A new Social Security Number rule now applies to you, not just your kids — which quietly cuts millions of children out.

This guide walks the real math: how the refundable portion is computed, where the phase-out creates a hidden marginal surtax for high earners, and the checklist that keeps you from leaving money on the table. Want to see how your federal tax bill and credits interact? Run your numbers first.

Open the US Federal Income Tax Calculator →

This is for information only, not tax advice.

What OBBBA Actually Locked In for the 2026 Child Tax Credit

Before OBBBA, the Tax Cuts and Jobs Act (TCJA) had temporarily set the credit at $2,000 per child — a number scheduled to revert to $1,000 after 2025. OBBBA killed that cliff. It made the credit permanent, bumped it to $2,200 per child starting in 2025, and — this is the part that matters going forward — indexed it to inflation beginning in 2026 (Tax Policy Center — What is the child tax credit?).

Here's the catch on indexing: the inflation adjustment rounds to the nearest $100, so for 2026 the credit stays at $2,200 — the first inflation bump wasn't large enough to push it to $2,300 (Tax Foundation — 2026 Tax Brackets). The refundable cap is indexed separately and sits at $1,700 per child for 2026.

The tell in that table: the credit grows with inflation, but the thresholds and floors don't. The $2,500 floor and the $200k/$400k phase-out lines are frozen in the statute. Over time, that quietly pulls more families into the phase-out and leaves the earned-income floor biting the same way every year.

A qualifying child must be under 17 at the end of 2026, be your child/stepchild/sibling/descendant, have lived with you more than half the year, not provide more than half of their own support, be claimed as your dependent, and be a U.S. citizen, national, or resident alien (IRS — Child Tax Credit).

The $1,700 Refundable Cap and the $2,500 Floor: Why the Poorest Families Get Less

This is the single most misunderstood part of the credit. The $2,200 is non-refundable — it can only erase tax you actually owe. If your federal income tax bill is already $0, the non-refundable credit has nothing to bite into. What rescues lower earners is the Additional Child Tax Credit (ACTC) — the refundable slice, capped at $1,700 per child for 2026.

But you don't automatically get $1,700. The ACTC is calculated as:

ACTC = 15% × (earned income − $2,500), capped at $1,700 per child (and never more than the unused portion of your $2,200 credit).

You need at least $2,500 of earned income just to start, and the credit ramps up at 15 cents per dollar above that. That ramp is the reason the lowest-income families — the ones the cash would help most — often receive only a fraction of the $2,200.

Worked example: a single parent, two kids, $20,000 earned

• Filing status: Head of household. The 2026 standard deduction of $24,150 (Tax Foundation) wipes out all $20,000 of income → federal income tax owed: $0.
• Non-refundable CTC used: $0 (no tax to offset).
• ACTC: 15% × ($20,000 − $2,500) = 15% × $17,500 = $2,625.
• Cap check: $1,700 × 2 children = $3,400. $2,625 is under the cap, so the refund is $2,625.

Full statutory credit was $4,400 ($2,200 × 2). This family collects $2,625 — the 15% ramp, not the headline number, set their check.

Worked example: same family, $30,000 earned

• ACTC formula: 15% × ($30,000 − $2,500) = 15% × $27,500 = $4,125.
• Cap: $1,700 × 2 = $3,400. The formula now exceeds the cap, so the refund is capped at $3,400.
• With little to no tax liability, they still leave roughly $1,000 of the $4,400 unclaimed — the gap between the $2,200 and the $1,700 refundable ceiling, times two kids.

The lesson: between the $2,500 floor and the $1,700 cap, a family needs enough earned income to climb the 15% ramp and enough tax liability to use the non-refundable top slice. Miss either and part of the $2,200 evaporates. If you're mapping how much of a raise actually reaches your pocket, model it with the US Federal Income Tax Calculator → before you count on the full credit.

The New SSN Rule: Now the Parent Needs One Too

Under the old TCJA rules, only the child had to have a work-authorized Social Security number — the parents could file with an Individual Taxpayer Identification Number (ITIN). OBBBA changed that. For 2026, the IRS states that you (or your spouse, if filing jointly) and each qualifying child must have a Social Security number valid for employment, issued before the tax return's due date (IRS — Child Tax Credit).

That one clause has a large footprint. Analysts estimate up to 2.7 million children could lose access to the credit because at least one parent files with an ITIN rather than an SSN — even when the child is a U.S. citizen with a valid SSN of their own (Institute on Taxation and Economic Policy).

And that's on top of the families the income mechanics already exclude. Because of the $2,500 floor and the $1,700 refundable cap, roughly 30% of all U.S. children won't receive the full credit in 2026, and about 99% of children in the poorest fifth of households are barred from the full amount (ITEP). If your household includes a child under 6, the share missing out is higher still. The design rewards families with steady, taxable, SSN-documented income — and thins out toward both ends of that description.

Practical takeaway: if you or your spouse recently became SSN-eligible, make sure the number is issued before the filing deadline (including extensions matters differently — the statute keys off the return due date). A late-issued SSN can cost the entire credit for that year.

The $200k/$400k Phase-Out — and the Hidden 5% Marginal Surtax

At the top end, the credit doesn't vanish at a cliff; it bleeds out. Above $200,000 of modified AGI (single or head of household) or $400,000 (married filing jointly), the credit drops $50 for every $1,000 — or fraction of $1,000 — over the line (IRS — Child Tax Credit).

$50 per $1,000 is a 5% implicit surtax. It doesn't show up on any bracket chart, but in the phase-out band, every extra $1,000 you earn is worth 5% less than it looks — stacked on top of your ordinary rate.

Worked example: married couple, two kids, $440,000 MAGI

• Over the $400,000 threshold by $40,000.
• Reduction: $50 × 40 = $2,000.
• Credit remaining: $4,400 − $2,000 = $2,400.

Now the marginal picture. In 2026, MAGI of $440,000 sits in the 24% married-filing-jointly bracket ($211,401–$403,550 is 24%; the top of that couple's income spills just into 24–32% territory) (Tax Foundation — 2026 brackets). Add the 5% credit clawback and each extra $1,000 earned in the phase-out band is taxed at an effective ~29%, not 24%.

Where the credit hits zero

Because each child's $2,200 takes $2,200 ÷ $50 = $44,000 of phase-out room, a two-child family's credit is fully gone at:

$400,000 + (2 × $44,000) = $488,000 MAGI.

So for this couple, the entire $400k–$488k band carries that hidden 5% surcharge. A one-child family clears out $44,000 sooner (at $444,000). This is exactly the kind of "invisible bracket" we broke down for the SALT deduction phase-out — the sticker rate is never the whole story near these thresholds.

Timing lever: because the phase-out keys off MAGI, deferring income (maxing pre-tax 401(k), HSA, or a strategic capital-loss harvest) in a year you're just over the line can restore credit dollars at that ~5% clip — sometimes a better return than the deduction itself.

Don't Forget the $500 Credit for Other Dependents

The Child Tax Credit stops at kids under 17. But OBBBA kept the Credit for Other Dependents (ODC) — a $500 non-refundable credit for dependents who don't qualify for the CTC (IRS — Child Tax Credit). That covers:

• A 17- or 18-year-old still living at home, or a full-time student up to age 24.
• An aging parent or other qualifying relative you support.
• A child who has an ITIN instead of a work-authorized SSN (the ODC's SSN rules are looser than the CTC's).

The $500 ODC uses the same $200,000 / $400,000 phase-out and the same $50-per-$1,000 clawback. It's non-refundable — it only offsets tax you owe — but for families with older kids or supported relatives, it's $500 per person that's easy to miss.

How the CTC stacks with the rest of OBBBA

The Child Tax Credit isn't the only family-facing piece of the 2025 law. If you're planning 2026, it sits alongside:

• Trump Accounts and the $1,000 newborn seed — a new tax-advantaged account for children, with a $5,000 annual contribution cap.
• The $6,000 senior bonus deduction — for taxpayers 65+, a separate above-the-line break with its own phase-out.
• The $40,400 SALT cap — relevant if you itemize in a high-tax state.

A credit like the CTC reduces your tax dollar-for-dollar, which makes it more valuable than a deduction of the same size. Wondering what a $2,200-per-child credit is worth if you invest it instead of spending it? Nineteen years of a $4,400 credit for two kids, compounded, is not a rounding error. Run it: Compound Interest Calculator →.

Common Mistakes That Cost Families the Credit

A quick pre-filing checklist — each item below is a real way people lose part or all of the $2,200:

• Assuming "credit" means "cash." Only $1,700 per child is refundable. If your tax bill is near zero, the other $500 may be unusable.
• Forgetting the $2,500 earned-income floor. No earned income, no refundable ACTC — investment income doesn't count.
• Missing the child's birthday cutoff. A child must be under 17 at year-end. The year they turn 17, they drop to the $500 ODC.
• Overlooking the parent's SSN requirement. Since OBBBA, at least one filer needs a work-valid SSN issued before the return due date — a change that catches ITIN filers.
• Ignoring MAGI near $200k/$400k. A year-end bonus that pushes you over the line claws back $50 per $1,000 — model it before you accept it.
• Skipping the $500 ODC for an older teen, college student, or supported relative.
• Not filing at all. Millions of eligible low-income families miss the ACTC simply because they aren't required to file — but the refundable credit only comes if you do file a return.

The Bottom Line

For 2026, the Child Tax Credit is $2,200 per qualifying child — permanent, and now inflation-indexed. But the real credit you receive is set by three numbers the headline never mentions: the $1,700 refundable cap, the $2,500 earned-income floor with its 15% ramp, and the $200k/$400k phase-out with its hidden 5% surtax. Layer on OBBBA's new parental-SSN rule, and roughly a third of American children won't see the full amount.

Know which of those levers applies to you, file to claim what's refundable, and watch your MAGI if you're near the phase-out. The difference between "up to $2,200" and what actually lands in your account is entirely in the mechanics.

Open the US Federal Income Tax Calculator → · Compound Interest Calculator →

This article is for general information only and is not tax advice. Tax figures reflect 2026 rules under the One Big Beautiful Bill Act and are subject to change; consult a qualified tax professional or the IRS for your specific situation.

Sources

• Internal Revenue Service — Child Tax Credit
• Internal Revenue Service — One Big Beautiful Bill Act provisions
• Tax Foundation — 2026 Tax Brackets and Federal Income Tax Rates
• Tax Policy Center — What is the child tax credit?
• Institute on Taxation and Economic Policy — The Child Tax Credit Leaves Out Millions of Children in 2026