The Most Common IRS Letters (And What They Really Mean)
November 11, 2025What to Do When You Receive a Letter from the IRS
November 11, 2025What Is a “Notice of Deficiency” from the Internal Revenue Service (IRS)?
Every so often, the IRS will send a very serious letter called a Statutory Notice of Deficiency (sometimes “90-Day Letter”)—for example, labelled as Letter 3219 A or CP 3219N. (IRS)
✅ What it means
- The IRS has reviewed your tax return (or lack thereof) and has made a legal determination that you owe additional tax beyond what you reported. (Community Tax)
- It’s not just a friendly request—it triggers your right to challenge the IRS’s assessment. You typically have only 90 days (or 150 days if you’re outside the U.S.) to act. (IRS)
- Until this notice is resolved (either by your action or by letting the time expire), the IRS is in a special legal posture—they can assess tax based on this determination. (IRS)
⚠ Why you might receive one
- The information reported on your return didn’t match third-party data (W-2s, 1099s, etc.). (Tim Hart)
- You failed to file a tax return for a year and the IRS used available income data to propose tax. (IRS)
- You filed an audit and the results show a larger liability than originally reported. (Taxpayer Advocate Service)
🛠 What you must do
- Read the notice carefully — note the tax year, the amount proposed, and the deadline to respond.
- Compare it to your own records (return copy, income statements, deductions).
- Decide your next step:
- If you agree with the proposed amount: Complete the waiver form (often Form 5564) and pay or set up a plan. (Tim Hart)
- If you disagree: You must act within 90 days to file a petition with the United States Tax Court if you want the chance to dispute without first paying. (Taxpayer Advocate Service)
- If you are unsure what to do or the numbers don’t add up — get professional help immediately.
🔍 Why this matters
This notice carries serious consequences:
- Missing the 90-day window means losing the right to go to Tax Court on those proposed changes.
- If you ignore it, your tax liability can be formally assessed and the IRS collection tools become available.
- The deficiency could include interest and penalties in addition to the tax.

📞 What KARME Can Do for You
At KARME Financial & Business Services, we specialize in handling Statutory Notices of Deficiency and other high-stakes IRS correspondence. We will:
- Translate the IRS’s legalese into plain English.
- Review your records to determine if the IRS is correct or if you have grounds to dispute.
- Help you decide whether to accept the notice, negotiate payment options, or challenge it in Tax Court.
- Represent you with the IRS and keep you informed while protecting your rights.

✨ Call to Action
Received a Notice of Deficiency or worried one is on the way?
👉 Visit www.mykarme.com to schedule a secure review.
📞 Call us at (insert your phone number) for a confidential consultation.
📧 Email us at (insert your contact email) for immediate guidance.
📱 Follow @mykarme on Instagram, Facebook, TikTok and X for up-to-date tax-problem tips and alerts.
