2026 UPDATE: We are reviewing guidance against current IRS publications, forms, and collection standards.

IRS Notice Decoder

Find your IRS notice number below to understand what it means, your response deadline, and exactly what steps to take. Every notice explained in plain English.

Tip:Your notice number appears in the upper right corner of your IRS letter. It typically starts with "CP" or "LT" followed by numbers (e.g., CP14, CP504, LT11).

Critical - Immediate Action Required

High Urgency

Medium Urgency

Not Sure What Your Notice Means?

If you can't find your notice number above or aren't sure how to respond, a tax professional can review your letter and explain your options. Many offer free consultations.

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