IRS Letters and Forms
CP18

CP18 — We have delayed sending part of your refund due to discrepancies on your return.

We have delayed sending part of your refund due to discrepancies on your return.

What to do next

Start with these steps before you reply.

CP18

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 have delayed sending part of your refund due to discrepancies on your return.

What it usually means

CP18 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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