IRS Letters and Forms
CP54Q

CP54Q — Second notice of inquiry regarding name and SSN on a tax return with a possible refund.

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

What to do next

Start with these steps before you reply.

CP54Q

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

Second notice of inquiry regarding name and SSN on a tax return with a possible refund.

What it usually means

CP54Q 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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