Notice code CP2000
CP2000 Notice: Answer the IRS Within 30 Days and Fix the Mismatch Today
Taxpayers in your state who miss the 30-day reply on a CP2000 notice can get a bill for the full proposed amount, plus daily interest.
Call now and a licensed tax pro goes through your letter for free and starts your reply today.
We answer day or night, go through your CP2000 line by line for free, and start your reply right away.
The IRS is proposing a change to your tax because its income records differ from your return.
Reply within 30 days of the letter date. Ask for more time before day 30, not after.
- Agree with the change and sign the response form.
- Agree, then add more items on Form 1040-X.
- Disagree and send proof of the wrong line.
Your reply is due 30 days from the date printed on the letter, so count from that date and call us well before it.
Interest runs from your return's original due date on any tax you end up owing, so reply by day 30 even if you disagree.
This is what you would owe if you agree with every line, so check each item against your W-2 and 1099 forms first.
Get your CP2000 reply started today
Your CP2000 can turn into a bill with daily interest if no reply goes in within 30 days.
A licensed tax pro for taxpayers in your state goes through every line for free and starts your reply today.
Call now and get your answer moving before day 30.
We answer day or night, go through your CP2000 line by line for free, and start your reply right away.
Tell us what your CP2000 says
What is the IRS saying in your CP2000?
The IRS is proposing a change to your tax. It compared the income forms it got from employers, banks and payment apps with your return.
It listed every item that differs. The change can raise your tax or lower it.
Nothing is final yet. This letter is a proposal, not an audit, and your reply decides what happens next.
Why did you get a CP2000?
The usual cause is a tax form you forgot or never opened, from a bank, a stock sale or a payment app.
When the IRS has no record of what you paid for shares, it can count the whole sale price as income.
A wage form typed in wrong, or a payer sending the same form twice, can cause it too.
Is your CP2000 real?
A real CP2000 has the code in the top right corner and a response form at the back.
You can match the code on the IRS notice and letter page. Our tax pro can also confirm it while you are on the call.
Our guide to checking an IRS letter shows the signs of a fake.
When is your CP2000 deadline?
Your reply and papers are due within 30 days of the letter date.
More time must be requested through the same reply options before day 30, not after. Call now and your tax pro can request it for you.
Use our tool to count my days from the date on your letter.
What if the CP2000 is right?
If the notice is right and you have nothing more to report, sign the response form and pay, or set up a payment plan.
If it is right but you have more income, credits or expenses to add, Form 1040-X is used for that.
The form carries "CP2000" at the top and goes in with the response form. Your tax pro can prepare both.
What if you disagree with the CP2000?
Mark that you disagree and attach proof. Say which line is wrong.
- A corrected 1099 from the payer.
- A brokerage statement showing what you paid for shares.
- A letter from the payer explaining the error.
The IRS explains this choice in its CP2000 video script. Form 2848 goes in with the reply so our licensed tax pro can speak to the IRS for you.
What happens if you ignore a CP2000?
If no reply arrives, the IRS can send a bill for the full proposed amount.
Interest adds up every day until it is paid. Call now so your reply goes in before the deadline.
What to read next
Questions people ask
Does a CP2000 mean I am being audited?
No. The IRS says this letter is not an audit, and it means the numbers on file differ from your return and need an answer.
Can I get more time to answer a CP2000?
Yes, through the same reply options on the notice, as long as the request goes in before day 30 from the letter date. Your tax pro can request it for you.
How do I reply to a CP2000?
The IRS lists a secure upload, fax and mail, and it calls the upload the fastest. Your tax pro can send the response form and your papers for you.
What if someone else used my Social Security number?
Form 14039, the identity theft affidavit, goes in with your reply. Our identity verification page explains the steps that follow.
Where this comes from
What to do now
- Call us now so a licensed tax pro can read your CP2000 with you for free.
- Find the date on the letter and mark the day 30 days later.
- Match each listed item against your W-2 and 1099 forms.
- Gather proof for any wrong line so your tax pro can send the reply before the deadline.
We answer day or night, go through your CP2000 line by line for free, and start your reply right away.
Notice details checked 8/25/2026