Child Tax Credit Calculator

Child Tax Credit Calculator

Calculate your Child Tax Credit and Additional Child Tax Credit (ACTC) based on the number of qualifying children and your modified AGI.

Initial CTC$0
Phase-out reduction$0
Child Tax Credit after phaseout$0
Refundable ACTC estimate$0

Quick Answer

The Child Tax Credit Calculator provides an educational estimate using the figures you enter. It is designed for taxpayers who want a fast planning view before preparing a return or meeting with a CPA.

How to Use This Calculator

  1. Enter your filing status and the requested income or expense amounts.
  2. Review the real-time estimate in the result summary.
  3. Use the result as a planning starting point and confirm your final return details.

The Formula & Math

Initial Child Tax Credit equals $2,000 per child. The credit is reduced by $50 for each $1,000 of modified AGI above the threshold; refundable ACTC is limited by earned income and annual caps.

Real-World Example

Two children create an initial $4,000 credit before phaseout and refundability limits.

FAQ

Is this an official IRS calculation?

No. It is an educational estimate and does not replace tax software, a filed return, or professional advice.

Does it include every tax rule?

No. Special deductions, credits, state rules, and changes in law can affect the final amount.

Which tax year does it use?

This calculator uses the stated 2026 planning assumptions where applicable.

When to Consult a CPA

  • Your income comes from a business, rental, investment, or multiple states.
  • You are making a major transaction or planning decision.
  • Your estimate differs materially from your withholding or prior-year return.