IRS Letters and Forms
CP623

CP623 — Installment Agreement Default Notice with Intent to Levy

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

What to do next

Start with these steps before you reply.

CP623

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

Installment Agreement Default Notice with Intent to Levy

What it usually means

CP623 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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