Got a letter from the IRS? Learn how to read it, what the most common notices (CP2000, CP14, CP501, LT11 and more) mean, how to respond and when to get professional help.
Opening a letter from the IRS can be stressful, but most notices are routine and can be resolved quickly if you respond on time. This guide explains how to read an IRS notice, what the most common letters mean and what to do next.
First: Confirm the Notice Is Real
The IRS usually starts contact by mail. It does not demand immediate payment by phone, text, email or social media, and it never asks for payment by gift card or wire transfer. A real notice shows a notice or letter number (for example "CP2000" or "LTR 3219"), usually in the top or bottom right corner, along with your tax year and a response deadline. If in doubt, sign in to your IRS online account to see whether the notice appears there.
How to Read Any IRS Notice
- Notice number: tells you exactly what type of letter it is. Look it up on the IRS page Understanding your IRS notice or letter.
- Tax year and form: shows which return the notice is about.
- Amount due or change proposed: what the IRS believes is owed or changed.
- Response date: the deadline to reply, pay or dispute. Missing it can limit your options.
Common IRS Notices and What They Mean
CP2000 – Proposed Changes to Your Return
The income or payments reported to the IRS (on W-2s, 1099s and similar forms) don't match your return. This is not a bill yet. You can agree, partly agree or disagree with supporting documents by the response date.
CP14 – Balance Due
You owe tax on a return you filed. Pay in full, or ask about a payment plan, to stop more penalties and interest from adding up.
CP501 and CP503 – Payment Reminders
Follow-up reminders that a balance is still unpaid. Each notice is more urgent than the last.
CP504 – Notice of Intent to Levy
The IRS intends to collect the unpaid balance, which can include taking a state tax refund. Act now by paying, setting up a plan or contacting the IRS.
LT11 / Letter 1058 – Final Notice of Intent to Levy
A final notice before enforced collection, which also explains your right to a Collection Due Process hearing. The deadline in this letter is especially important.
CP12 – Math Error or Changed Refund
The IRS corrected an error on your return, which changed your refund or balance. Review the change; you can usually ask for it to be reversed within 60 days if you disagree.
Letter 5071C / 4883C – Identity Verification
The IRS needs to confirm you filed the return before processing it. Follow the instructions in the letter to verify your identity.
CP59 – No Return Filed
The IRS has no record of a return for that year. File the return, or explain why you weren't required to file.
CP3219A – Notice of Deficiency
Often called a "90-day letter," it gives you the right to challenge a proposed tax increase in U.S. Tax Court before it is assessed.
What to Do When You Receive a Notice
- Don't ignore it. Note the response date on your calendar.
- Compare it to your return. Gather the return, W-2s, 1099s and any records related to the issue.
- Decide whether you agree. If you agree, follow the payment or response instructions. If you don't, send a written reply with copies (never originals) of supporting documents.
- Keep copies of everything you send and note the date you sent it.
- Ask about payment options if you can't pay in full; the IRS offers payment plans.
When to Get Professional Help
Consider help from a tax professional if the notice proposes a large change, involves several tax years, mentions a levy or lien, concerns a business return, or if you simply don't understand what the IRS is asking. EZ Tax Works can review your notice, explain your options and help prepare a response.
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Disclaimer: This article is for informational purposes only and is not tax or legal advice. Notice numbers, procedures and deadlines can change; always follow the instructions in your specific notice.