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IRS Notices·6 min read

Understanding IRS Notices: CP Letters Explained

The IRS sends millions of notices each year. Understanding which one you received and what it means is the first step toward responding effectively.

Common IRS notice types

  • CP14: Balance due — you owe taxes and need to pay or set up a payment plan
  • CP2000: Proposed adjustment — the IRS found a discrepancy between your return and reported income
  • CP501/CP503/CP504: Reminder/Intent to levy — escalating collection notices
  • LT11/LT1058: Final notice of intent to levy — serious collection action is imminent
  • CP90/CP244: Final notice of intent to levy and notice of your right to a hearing
Important: IRS notices have response deadlines — typically 30–90 days. Ignoring a notice can lead to escalating collection actions, liens, or levies.

How to read an IRS notice

Every IRS notice includes: a notice number (top right), your tax year, a response deadline, and instructions. The notice number tells you what type of action the IRS is taking.

Steps to respond

  • Read the entire notice carefully
  • Note the response deadline immediately
  • Gather supporting documentation
  • Write a clear response letter addressing each item
  • Mail certified with return receipt for proof of timely delivery
Tip: Certified mail with return receipt gives you a signed card back — physical proof that the IRS received your response.

This guide is for informational purposes only and does not constitute legal or tax advice.

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