I Got a Letter From the IRS. What Is It? (CP14, CP2000, CP501, CP504, LT11 Explained)
· RKube Services
Received an IRS notice? Find the code in the top right corner, then use this plain-English guide to what CP14, CP2000, CP501/503, CP504 and LT11/Letter 1058 mean and what to do.
An envelope from the IRS is stressful. Most IRS letters, though, are routine and follow a predictable sequence. The first step is to find the notice code, usually printed in the top right or bottom right corner (for example CP14 or LT11). The code tells you what the IRS wants and how much time you have.
First: is it real?
The IRS starts contact by mail, not by phone, text or email. It never demands payment by gift card or crypto. If in doubt, don't call the number on the letter. Log in to your IRS online account at irs.gov, or call the IRS at the number listed on irs.gov, to confirm the notice.
Common notices and what they mean
| Notice | What it means | What to do |
|---|---|---|
| CP14 | You have a balance due. This is the first bill. | Check the amount against your return. Pay, or set up a payment plan. |
| CP501 / CP503 | Reminders that the balance is still unpaid | Respond now. Interest and penalties keep growing. |
| CP504 | Notice of intent to levy. The IRS can take state tax refunds and is moving toward other collection. | Pay or arrange a plan right away. |
| LT11 / Letter 1058 | Final notice of intent to levy, with your right to a Collection Due Process hearing | You have 30 days to request a hearing (Form 12153). Get help. |
| CP2000 | The income or payments the IRS has on file (1099s, W-2s) don't match your return. It's a proposed change, not a bill. | Agree or disagree by the response date (usually 30 days), with documentation. |
| CP12 / CP11 | The IRS corrected a math or credit error on your return | Review the change. You can dispute it within 60 days. |
| CP59 / CP515 | The IRS has no record of a return being filed | File the return, or send proof that you already filed. |
| CP161 / CP162 | Business balance due, or a penalty for a late partnership or S corp return | Pay, or request penalty relief (first-time abatement or reasonable cause). |
| Letter 5071C | Identity verification before the IRS processes a return | Verify through the IRS site or by phone as the letter directs. |
Business owners: notices that point to bookkeeping problems
A CP2000 for a business owner usually means income the IRS saw on a 1099-NEC, 1099-K or 1099-MISC isn't on the return. Payroll notices (for Form 941 or 940) often come from deposits that were missed or misapplied. Both get resolved faster when your books are reconciled. You can then show exactly where each payment was reported.
What not to do
- Don't ignore it. Most notices escalate on a fixed schedule, from CP14 through CP501, CP503 and CP504 to LT11.
- Don't pay a CP2000 automatically if the IRS is wrong. It's a proposal, and many get reduced once you provide documentation.
- Don't miss the response date printed on the notice.
Got a state letter instead?
The NC Department of Revenue sends its own notices for withholding, sales tax and income tax. NC Secretary of State letters about annual reports or dissolution are a separate matter. See reinstating a dissolved NC LLC.
Want someone to handle it?
RKube Services prepares and files this for small businesses in North Carolina and across the US. Call (984) 234-7030 or send us a message and we'll tell you exactly what your situation needs. Bookkeeping clients can start with a free 30-day trial.
This article is general information, not legal or tax advice. State fees and IRS rules change, so confirm current amounts on sosnc.gov or irs.gov before filing.