Child Tax Credit vs Additional Child Tax Credit (ACTC): What's the Difference?
Last verified: 2 April 2026 | Source: IRS.gov | Tax year: 2025 (returns filed 2026)
The "Child Tax Credit" and "Additional Child Tax Credit" are often confused because they are part of the same credit — but they work differently, and the distinction matters when working out how much your family will actually receive.
The Simple Version
The Child Tax Credit (CTC) is the total credit available — for 2025, up to $2,200 per qualifying child under 17 (increased from $2,000 under the One Big Beautiful Bill Act, July 2025).
The Additional Child Tax Credit (ACTC) is the refundable portion of the CTC — the part you can receive as a cash refund even if you owe no federal income tax.
| Component | Amount (2025) | What It Does |
|---|---|---|
| Child Tax Credit (total) | Up to $2,200/child | Full credit available |
| Non-refundable portion | Up to $500/child | Reduces your federal tax bill to $0; unused is lost |
| Additional Child Tax Credit (ACTC) | Up to $1,700/child | Paid out as a refund even if no tax is owed |
Why the Split Matters
If you owe more in federal taxes than your total CTC, the entire credit reduces your tax bill — and you don't need to worry about the split.
If you owe less than the credit (or nothing at all), this is where the refundable ACTC becomes critical. Without it, families with low tax bills would lose the unused portion of their credit. The ACTC ensures up to $1,700 per child is returned as actual cash.
Example — Family owing $0 in federal tax:
A single parent with one qualifying child and $35,000 in earned income:
- Potential CTC: $2,200
- Federal tax before credit: approximately $900
- Non-refundable CTC ($500) reduces tax to $400
- Remaining non-refundable credit ($500 of the $500 cap) reduces tax further — but tax is now $0
- ACTC calculation: 15% × ($35,000 − $2,500) = $4,875 → capped at $1,700
- ACTC refund received: $1,700
- Total benefit: tax reduction + refund = net position significantly improved
How the ACTC is Calculated
The ACTC is the lesser of:
- 15% of your earned income above $2,500
- $1,700 × the number of qualifying children
| Earned Income | 1 Child | 2 Children | 3 Children |
|---|---|---|---|
| $10,000 | $1,125 (15% × $7,500) | $1,750 → capped at $1,700 × 2 = $3,400 → result: $1,700 | $3,400 → capped at $5,100 → result: $1,125 |
| $20,000 | $1,700 (capped) | $2,625 → capped at $3,400 → result: $2,625 | $2,625 → capped at $5,100 → result: $2,625 |
| $35,000 | $1,700 (capped) | $3,400 (capped) | $4,875 → capped at $5,100 → result: $4,875 |
| $60,000 | $1,700 (capped) | $3,400 (capped) | $5,100 (capped) |
Calculated as 15% × (earned income − $2,500), capped at $1,700 per qualifying child. Source: IRS.gov.
The $2,500 Earned Income Floor
To claim any ACTC at all, you must have at least $2,500 in earned income — meaning wages, salaries, tips, or net self-employment income. Unearned income (investment income, rental income, benefits) does not count toward this floor.
Families with no earned income receive no ACTC, even if they have qualifying children. This is a known limitation of the programme.
How to Claim Both on Your Tax Return
You do not need to do anything special to claim the ACTC separately. The entire process happens on Schedule 8812 (Credits for Qualifying Children and Other Dependents), which is attached to Form 1040.
- List each qualifying child on your Form 1040 with name, SSN, and date of birth
- Complete Schedule 8812 — it automatically calculates the non-refundable CTC and the refundable ACTC
- The ACTC refund flows to line 28 of Form 1040 and is included in your total refund
- Tax software (TurboTax, H&R Block, FreeTaxUSA, IRS Free File) handles all of this automatically
IRS ACTC refund hold: The IRS is required by law to hold refunds containing ACTC claims until at least mid-February. Electronic filers generally receive refunds in late February; paper filers take longer.
High-Income Families: When the ACTC Doesn't Apply
For families with incomes above the phase-out threshold ($400,000 married filing jointly; $200,000 single), the total CTC is reduced. Once the credit is reduced below $1,700 per child, the ACTC effectively disappears — there is nothing refundable left.
High earners typically cannot claim the ACTC because their tax liability is large enough to absorb the non-refundable credit fully.
Other Credits to Know About
| Credit | Max Amount | Refundable? | Who Benefits |
|---|---|---|---|
| Child Tax Credit (CTC) | $2,200/child (2025) | Partly — $1,700 ACTC | All families with qualifying children |
| Earned Income Tax Credit (EITC) | Up to ~$8,046 (2025, 3+ children) | Fully | Lower-income working families |
| Child & Dependent Care Credit | Up to $2,100 | No | Families paying for childcare |
| Other Dependent Credit | $500/dependent | No | Non-qualifying dependents |
The CTC and EITC can both be claimed in the same year. For low-to-moderate income families with children, the combined value of these two credits can be substantial.
Use the Calculator
Use our Child Benefits Calculator to estimate your Child Tax Credit and ACTC for the 2025 tax year. Enter your filing status, income, and number of qualifying children for an instant estimate.
Related Guides
- US Child Benefits 2026: Complete Guide — all US child benefit and tax credit programmes in one place
- Child Tax Credit 2025–2026 — complete CTC guide with income tables and worked examples
- Earned Income Tax Credit 2026 — the other major US credit for working families
- Child Benefits Calculator — estimate your US, UK, Canada or Australia benefits
- What Affects Child Benefit Eligibility? — US eligibility in context
All figures are for the 2025 tax year (returns filed in 2026), based on IRS guidance verified April 2026. Tax law can change — always check IRS.gov for current rates before filing.