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Notice code 627 (1040) — We did not allow part or all of the amount claimed for Child Tax Credit on line 52 of your Form 1040…
What this IRS notice code means, and what to check before you reply.
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627
Read the notice carefully and note any deadline. Gather returns, notices, and payment records. Book a free strategy session before responding if the amount is large, unclear, or collection language appears.
What the IRS language says
We did not allow part or all of the amount claimed for Child Tax Credit on line 52 of your Form 1040 because your dependent(s) with an Individual Taxpayer Identification Number (ITIN) did not meet the substantial presence test in Part I of your Schedule 8812, Child Tax Credit.
What it usually means
627 is in our IR Manual catalog. Official wording is dense — we translate it for business owners and individuals and map realistic next steps.
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