USA Child Tax Credit Calculator
Enter your number of qualifying children, filing status, and modified adjusted gross income to estimate your Child Tax Credit.
Reflects 2026 rates (effective 2026-01-01).
Last checked 2026-09-11 · v1. Tax rules change — verify against an official source before relying on this for a filing.
Source.
USA Child Tax Credit Calculator
Estimate your federal Child Tax Credit after any high-income phase-out.
This is an estimate for general informational purposes only, not tax advice. It approximates the phase-out as a smooth 5% reduction rather than the exact $50-per-$1,000-increment rounding, and assumes each child has a valid Social Security number and meets the relationship, age, and residency tests.
The Child Tax Credit provides up to $2,000 per qualifying child under age 17. It phases out by $50 for every $1,000 (or part thereof) that your modified adjusted gross income exceeds $200,000 (single/head of household) or $400,000 (married filing jointly).
Example
- With the default values shown above, this calculator returns: Phase-Out Threshold ≈ USD 200,000.00; Credit Before Phase-Out ≈ USD 4,000.00; Phase-Out Reduction ≈ USD 1,000.00; Estimated Child Tax Credit ≈ USD 3,000.00.
Frequently Asked Questions
How much is the Child Tax Credit per child?
Up to $2,000 per qualifying child under age 17, with up to $1,700 of that potentially refundable as the Additional Child Tax Credit for 2026.
At what income does the credit start phasing out?
The phase-out begins at $200,000 of modified AGI for single/head-of-household filers, or $400,000 for married couples filing jointly.