Underreported Income Notice (CP2000)

Why you might get this

• A W-2, 1099, or other income form the IRS received doesn't match what you put on your return.
• You may have left off some income, like interest, freelance pay, or a stock sale.
• A payment was reported to the IRS under your Social Security number.
• The numbers could be a duplicate or a simple mistake by whoever paid you.

The deadline

This is a proposed change, not a final bill. You have about 30 days to agree or disagree before the IRS moves toward making the change official.

What to do

1. Read the notice and compare each listed item to your own records (W-2s, 1099s, receipts).
2. Decide, for each item, whether you agree or disagree.
3. If you agree, sign the enclosed response form and follow the payment or agreement instructions.
4. If you disagree, write a short explanation and attach copies (never originals) of documents that back you up.
5. Respond by the date on the notice; if you need more time, call the number shown and ask for an extension.

What happens if you ignore it

If you don't respond, the IRS can send a Notice of Deficiency (Letter 3219). That starts a firm 90-day clock and can lock in the extra tax, penalties, and interest.

CP2000 usually follows a CP2501. If you don't answer, the IRS follows it with a Notice of Deficiency (Letter 3219).

What an IRS CP2000 notice really means

A CP2000 is one of the most common letters the IRS sends. It arrives when the income reported to the IRS by employers, banks, brokers, or clients doesn't line up with what you reported on your tax return. The IRS calls this an "underreporter" review.

Here's the part that surprises people: a CP2000 is not a bill and not an audit. It's a proposal. The IRS is saying, "Based on the forms we received, here's how we think your taxes should change — do you agree?" You have the right to disagree and to send proof.

Take it seriously, but don't panic. Sometimes the notice is right and you simply forgot some income. Sometimes it's wrong — a payer double-reported, or the income was already included in a different spot on your return. Either way, compare every line to your own records before you respond, and always send copies rather than originals.

The most important thing is to respond by the date on the notice. Silence is what turns a fixable proposal into a Notice of Deficiency with a hard 90-day deadline.

If keeping track of IRS deadlines and decoding letters like this feels overwhelming, that's exactly the kind of thing Solace is built to watch for you, in plain language.