IRS notice CP2000

Proposed changes to your tax return

Income or payment information the IRS got from employers or banks doesn't match what you reported. This proposes changes; it isn't a bill.

What the IRS asks

Respond by the date on your notice, whether you agree or not.

What to check on your letter

• The notice code in the top right corner
• The amount shown and whether it is a bill or a proposed change
• The date printed on the letter to respond or pay by

Want a pro to look at it? See tax professionals

OweRight is not affiliated with the IRS. This page explains the notice in general. It is not tax, legal or financial advice. Last checked October 5, 2026.