IRS Letters and Forms
CP777

CP777 — We changed the amount of your Form 8959, Additional Medicare Tax. There was an error transferring the amount from Form 8…

We changed the amount of your Form 8959, Additional Medicare Tax. There was an error transferring the amount from Form 8959 to page 2 of your Form 1040.

What to do next

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CP777

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 changed the amount of your Form 8959, Additional Medicare Tax. There was an error transferring the amount from Form 8959 to page 2 of your Form 1040.

What it usually means

CP777 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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