IRS Letters and Forms
CP12M

CP12M — Making Work Pay Math Error notice with overpayment of $1.00 or more.

Making Work Pay Math Error notice with overpayment of $1.00 or more.

What to do next

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CP12M

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

Making Work Pay Math Error notice with overpayment of $1.00 or more.

What it usually means

CP12M 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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