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US child tax credit calculator
CTC and the refundable portion for families abroad.
About this calculator
What it estimates
The Child Tax Credit available for qualifying children and the portion that can be refunded.
Assumptions (US 2025 tax year rates)
- •$2,200 per qualifying child
- •Refundable portion capped at $1,700 per child
- •Phase-out of $50 per $1,000 of AGI above $200,000 ($400,000 MFJ)
Estimates only, for orientation. Rates and thresholds change each tax year and your actual liability depends on facts this tool does not ask for. This is not tax advice.
For US–UK filers
Why your real number differs
The refundable portion requires earned income that is not excluded. Families abroad who exclude all of their salary under the FEIE often lose the refund; using the Foreign Tax Credit instead can preserve it.