A single mother earning $15,000 a year and a married couple bringing home $350,000 both have children who qualify for the Child Tax Credit. But when they file their 2025 returns, the benefit they actually receive will look nothing alike. The couple will claim the full $2,200 per child. The single mother, despite needing the money far more, may receive only a fraction of that amount, or nothing at all.
That disparity sits at the center of the Child Tax Credit’s latest expansion. For tax year 2025, the maximum credit rises from $2,000 to $2,200 per qualifying child under Section 70104 of the One Big Beautiful Bill Act (Public Law 119-21). The increase is modest. And for millions of the lowest-income families, the credit’s underlying structure still blocks them from receiving the full amount.
What the new law actually changed
The $200 increase comes from a single provision in the 119th Congress’s sweeping budget and tax package. Section 70104 amended Internal Revenue Code Section 24, setting the maximum Child Tax Credit at $2,200 per qualifying child for taxable years beginning in 2025. It also introduced automatic inflation adjustments starting after December 31, 2025, pegged to the Chained Consumer Price Index, so the credit can rise in future years without additional legislation.
Most of the credit’s underlying rules stayed the same. Children must be under 17 at the end of the tax year. Each qualifying child needs a Social Security number, as does the taxpayer (and at least one spouse on a joint return). Families filing with Individual Taxpayer Identification Numbers remain shut out from claiming the credit entirely. That restriction has been in place since the 2017 Tax Cuts and Jobs Act and survived this round of legislation despite continued criticism from immigrant-rights organizations. The Institute on Taxation and Economic Policy has estimated that roughly 1 million U.S. citizen children are excluded because their parents file with ITINs.
The income phaseout thresholds are also unchanged: the full $2,200 is available to single and head-of-household filers earning up to $200,000, and to married couples filing jointly with income up to $400,000. Above those lines, the credit shrinks by $50 for every $1,000 of additional income. A single parent earning $220,000, for example, loses $1,000 of the credit. A married couple with one child earning $444,000 loses the entire $2,200 for that child.
Why the poorest families still get the least
The credit’s headline number and its real-world value are two different things. The difference hits hardest at the bottom of the income scale.
The Child Tax Credit first offsets whatever federal income tax a family owes. Any remaining credit, up to $1,700 per child, can be paid out as a refund through the Additional Child Tax Credit, calculated on Schedule 8812. But that refundable portion is not automatic. It is tied to an earned-income formula: a family must have earnings above a threshold, and the refund equals a percentage of income above that floor. The less a family earns, the smaller the refund.
Take a family with two children and $10,000 in annual earnings. Their federal income tax liability is likely zero. They qualify for the credit on paper, but the refundable portion they can actually receive depends on their earned income. At $10,000, the formula delivers far less than the $4,400 maximum. A family with no earnings at all receives nothing.
The IRS confirmed the $1,700 refundable cap for 2025 in Internal Revenue Bulletin 2025-45. That cap did not increase alongside the $200 bump to the overall credit, which means the gap between the maximum credit and the maximum refund has actually widened: from $300 under the old rules to $500 now. And critically, the new inflation-indexing provision applies to the overall credit maximum but not necessarily to the refundable cap on the same schedule, raising the possibility that the gap grows further in future years.
This is not a new problem. Under the prior $2,000 credit, the Center on Budget and Policy Priorities estimated that roughly 19 million children lived in families with incomes too low to receive the full benefit. The $200 increase does not change that dynamic in any meaningful way, because the refundable share stayed flat.
How 2025 compares to the 2021 expansion
The gap between what the credit could do and what it currently does becomes clearest when measured against recent history. The 2021 American Rescue Plan temporarily reshaped the Child Tax Credit into something much larger and more inclusive. That law raised the maximum to $3,000 per child ages 6 through 17 and $3,600 per child under 6, and made the entire credit fully refundable, meaning families received the full amount regardless of tax liability or earnings. Monthly advance payments went directly to bank accounts starting in July 2021.
Researchers at Columbia University’s Center on Poverty and Social Policy found that during the months those advance payments were active, the expansion cut monthly child poverty by roughly 30%. The National Academy of Sciences later cited the expansion as evidence that a fully refundable credit could substantially reduce child poverty on a sustained basis.
That expansion expired after one year. The current $2,200 credit is significantly smaller, only partially refundable, and does not include advance monthly payments. Advocates who pushed for a permanent version of the 2021 design view the new law as a step backward from what was briefly proven possible.
What the IRS has confirmed so far
The IRS published the updated credit amounts in Internal Revenue Bulletin 2025-45, tying the $2,200 maximum directly to the enacted statute and specifying when inflation indexing begins. The bulletin confirms that the higher credit first applies to tax years beginning in 2025, so returns filed during the 2026 filing season are the first to reflect the change.
The Joint Committee on Taxation has separately described the 2025 rules in its overview of the new law, confirming the $2,200 maximum, the $1,700 refundable cap, and the unchanged phaseout thresholds. The IRS’s family tax benefits page also reflects the updated figures.
What families should know before filing
For middle-income households with steady wages, the credit works straightforwardly: claim $2,200 per qualifying child, reduce your tax bill, and receive any excess up to the $1,700 refundable cap. Many of these families will see a modestly larger refund or a slightly lower balance due compared with 2024.
For families earning above the phaseout thresholds, the math is simple but worth checking. A married couple with two children and $420,000 in income loses $1,000 of their combined $4,400 credit, leaving them with $3,400. At $444,000, they lose $2,200 of the combined credit. The full $4,400 disappears entirely at $488,000.
For low-income families, the calculation is more complicated and often disappointing. The refundable portion depends on earned income, and families should use Schedule 8812 or consult a tax preparer to determine what they can actually receive. Many low-income families claiming the CTC simultaneously qualify for the Earned Income Tax Credit, and the two benefits interact in ways that affect the combined refund. A tax professional or free filing service can help sort that out. Free assistance is available through the IRS’s Volunteer Income Tax Assistance (VITA) program for households earning $67,000 or less.
Why the refundability gap may keep growing
As of June 2026, the first returns under the new rules are being processed, but no publicly available IRS or Census microdata yet captures how many families are fully excluded from the credit under the $2,200 structure. The closest existing proxy is the CBPP’s pre-expansion estimate of 19 million children in families too poor to claim the full credit. Because the refundable cap did not rise, analysts at the Tax Policy Center and the Brookings Institution expect that figure to remain in roughly the same range, though precise numbers will depend on filing-season data the IRS typically releases in its annual Statistics of Income reports, with the first 2025-return data expected in late 2027.
The law’s inflation-indexing mechanism could gradually widen the gap between the maximum credit and the refundable cap if Congress does not adjust both on the same schedule. Advocacy groups, including the Center on Budget and Policy Priorities and the National Women’s Law Center, have already signaled they will push for a higher refundable limit or a fully refundable credit in future legislation. Some Republican lawmakers have also expressed interest in expanding refundability, a rare area of bipartisan overlap that stalled during the 2024 Wyden-Smith negotiations but has not disappeared.
For now, the $2,200 Child Tax Credit delivers its largest benefits to families in the broad middle of the income distribution. The children in the poorest households, the ones the credit is ostensibly designed to help, continue to receive the least.
