IRS Letters and Forms
CP165

CP165 — Notification that a check for Federal Tax Deposits/Estimated Taxes has been dishonored. Requests repayment of the check …

What this IRS notice code means, and what to check before you reply.

What to do next

Start with these steps before you reply.

CP165

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

Notification that a check for Federal Tax Deposits/Estimated Taxes has been dishonored. Requests repayment of the check plus the bad check penalty assessed.

What it usually means

CP165 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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