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Notice code 161
Notice code 161 (Default) — We didn’t allow the amount claimed as a deduction for self-employed SEP, SIMPLE, and qualified plans…
What this IRS notice code means, and what to check before you reply.
What to do next
Start with these steps before you reply.
161
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 the amount claimed as a deduction for self-employed SEP, SIMPLE, and qualified plans on page 1 of your tax return. Your employer has already adjusted Box 1 of your Form W-2 to exclude this amount.
What it usually means
161 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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