Got an IRS Notice? Here’s What It Means and What To Do Next.
An envelope shows up from the IRS with “CP” or a letter number in the corner — CP2000, CP14, CP504, 4883C, 5071C, 566, 525, and so on. It’s normal to feel anxious. This hub helps you quickly match your notice, understand what the IRS is saying, and see calm, practical next steps — including when it’s time to hand the whole thing off to an Enrolled Agent.
First: what kind of IRS notice did you receive?
Most IRS letters fall into just a few categories. Once you know which one you’re dealing with, it’s much easier to decide whether you can respond yourself or should bring in a professional.
- CP2000 – “Underreporter” notices when IRS computers think your income doesn’t match your return.
- CP14, CP501, CP503, CP504, Letter 1058 – Balance-due and collection notices that escalate toward liens and levies.
- CP12, 12C – Math error or “we changed your refund” / “we’re missing a form” letters.
- 4883C, 5071C – Identity verification letters to confirm a return is really yours.
- Letters 566 / 525 – Audit / examination letters requesting more information and documentation.
Browse notices by problem type
You can also skim by “category” if you’re still getting familiar with the code on your letter.
Balance due & collections
- CP14 – First balance-due notice
- CP501 / CP503 – Balance-due reminders
- CP501 / CP503 / CP504 – Escalating collection notices
- CP504 – Final Notice of Intent to Levy
- Letter 1058 – Final Notice of Intent to Levy
- Letter 1058 – Final Notice of Intent to Levy (alternate link)
- CP523 – Installment agreement default
Underreporter & matching issues
Math errors & missing information
Identity verification
Audits & examinations
In Sugar Land, Richmond, or Katy with an IRS notice in your hand?
Want a calm second set of eyes on your IRS notice?
If you’re staring at an IRS letter and not sure what it means or how to respond, we can review the notice and your return with you and outline your options — before you call the IRS, sign anything, or send a check.
