Got an IRS Notice? What CP2000, CP14, and CP504 Mean and How to Respond

An envelope from the IRS is stressful, but most notices are routine and can be resolved by mail. The worst response is no response, because every IRS notice has a deadline and each one you ignore moves you closer to collection action. Here is how to read the notice in your hand and what to do next.

First steps for any notice

• Do not panic, and do not ignore it. Open the notice and find the response date. It is usually in the upper corner or in the first paragraph.
• Find the notice number. It is printed in the top or bottom right corner, for example CP14 or CP2000. The number tells you exactly what the IRS wants.
• Compare it with your return. Pull the return for the year listed and see whether the IRS is right. The IRS makes mistakes, and so do employers and banks that send it information.
• Check that it is real. The IRS starts contact by mail, not by text, email, or social media, and never demands payment by gift card. If in doubt, sign in to your IRS online account and see whether the notice is listed.

The most common notices

• CP14: balance due. You owe tax, penalties, or interest. Pay it, set up a payment plan, or dispute it if it is wrong. Interest keeps growing until it is paid.
• CP501 and CP503: reminders. These follow a CP14 that was not paid. Each one makes it more urgent.
• CP504: notice of intent to levy. The IRS can now take your state tax refund and begin steps to levy other assets. Act right away.
• LT11 or Letter 1058: final notice of intent to levy. You have 30 days to request a Collection Due Process hearing. This is the last chance to appeal before wages and bank accounts can be levied.
• CP2000: underreported income. The income on your return does not match what employers, banks, brokers, or payment apps reported. It proposes a change but is not a bill yet. You can agree, partly agree, or disagree with documentation.
• CP2501: a softer early version of a CP2000 asking you to explain a mismatch.
• Letter 566 or 525: examination. The IRS is auditing your return by mail and wants records or proposes changes.
• CP161 or a business balance-due notice: an unpaid amount on a business return, often payroll tax. Payroll tax notices need fast attention because owners can become personally liable.

How to respond to a CP2000

A CP2000 is the notice we see most. Common causes include a brokerage Form 1099-B that showed proceeds but not cost basis, a 1099 sent to the wrong taxpayer ID, or income reported on a business return that the IRS matched to an individual.

• Read the list of income items the IRS says are missing.
• For each one, decide whether it was left off, reported elsewhere, or reported wrong by the payer.
• Fill out the response form, attach a clear explanation and supporting documents, and send it by the deadline, usually 30 days from the notice date.
• If you need more time, call the number on the notice before the deadline and ask for an extension.

Penalty relief

If the IRS charged a penalty for filing or paying late, you may qualify for first-time abatement if you had no penalties in the prior three years and you have filed all required returns. Penalties can also be removed for reasonable cause, such as a serious illness, a disaster, or reliance on incorrect written advice from the IRS. Interest is generally not removed, except to the extent it relates to a penalty that is removed.

When to get help

You can answer a simple notice yourself. Get professional help if the amount is large, if the notice involves a business or payroll tax, if it is an audit letter, or if you have already received a CP504 or final notice. A CPA with a power of attorney on Form 2848 can talk to the IRS for you, request penalty relief, and negotiate a payment plan.

OICPA's IRS notice response team reviews the notice, drafts the response, and follows up until it is closed. If the IRS has opened an audit, our IRS audit representation team handles it from start to finish.

Frequently asked questions

Will the IRS call me before sending a notice?

No. The IRS almost always starts by mail. Unexpected calls, texts, or emails claiming to be from the IRS are usually scams.

Can I set up a payment plan online?

Yes. Individuals who owe up to $50,000 in combined tax, penalties, and interest can usually set up a long-term payment plan online without detailed financial statements.

What if I disagree with a CP2000 but missed the deadline?

The IRS will send a statutory notice of deficiency, which gives you 90 days to petition the Tax Court. You can still send your documentation, but act quickly.

Does a notice mean I am being audited?

Usually not. Most notices are automated matching or balance-due letters. An audit letter will say that your return has been selected for examination.