If you claim Foreign Tax Credit instead of the Foreign Earned Income Exclusion, then the Child Tax Credit may still lead to a refund.
However, if you DO NOT take the foreign earned income exclusion this year (with or without the foreign tax credit) you in effect are revoking the foreign earned income exclusion and you must wait 6 year to be able to use it again.
According to the IRS: Once you choose to exclude your foreign earned income and/or your foreign housing costs, that choice remains in effect for that year and all later years unless you Revoke it. See Publication 54, Tax Guide for U.S. Citizens and Resident Aliens Abroad for instructions on how to revoke the election and the associated effects.
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