IRS Letters and Forms
Notice code 178

Notice code 178 (Default) — We changed the amount claimed as taxes you paid on your Schedule A, Itemized Deductions, because it …

We changed the amount claimed as taxes you paid on your Schedule A, Itemized Deductions, because it was figured incorrectly.

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178

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 changed the amount claimed as taxes you paid on your Schedule A, Itemized Deductions, because it was figured incorrectly.

What it usually means

178 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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