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Notice code 339S (1040SS) — We didn’t allow part or all of your additional child tax credit on line 9 of your Form 1040-SS. One …
We didn’t allow part or all of your additional child tax credit on line 9 of your Form 1040-SS. One or more of your children exceeds the age limitation.
What to do next
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339S
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 didn’t allow part or all of your additional child tax credit on line 9 of your Form 1040-SS. One or more of your children exceeds the age limitation.
What it usually means
339S 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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