You opened the mailbox and found a letter from the IRS. Your first questions are probably the same ones I hear every week: What does this mean? Am I in trouble? How should I respond?
From a former IRS agent: the stakes can be high, but most IRS notices are manageable when you approach them with the right strategy instead of panic. What you do next makes all the difference.
Here is the trap. The government’s collection system is designed to move forward automatically unless someone interrupts it. Left alone, a simple misunderstanding becomes a Notice of Deficiency, then a formal assessment, then collection notices, and eventually a lien or a levy on your bank account or wages. Ignoring the letter doesn’t make it go away. It hands the IRS the win by default.
The five steps to take first
Responding to the IRS the right way takes strategy, not instinct. This is the framework from the book’s Quick-Start Guide, and it works whether your letter is a simple correction or the opening of an audit.
- Don’t panic. The IRS sends over 40 million notices to businesses a year. Not all of them are bills, and the agency follows standardized procedures that make the process predictable.
- Read carefully. Read the whole notice, not a few keywords. It tells you what the IRS is asking, what your obligations are, and what to do next. Identify which of the five categories below it falls into.
- Analyze your tax transcripts. Before you call anyone, pull your IRS transcripts and compare what you filed to what the IRS has on record. That comparison usually reveals exactly what triggered the letter.
- Respond accordingly. Confirm whether a reply is even required, put the deadline on your calendar, and respond in writing by certified mail with return receipt. Keep it clear, factual, and free of unnecessary narrative.
- Ask for help when you need it. If the notice involves an audit, proposed additional tax, or missing records, that is the moment to bring in a qualified professional. The cost of going it alone can be very high.
Which letter are you holding?
Every IRS notice falls into one of five broad categories. Knowing which one tells you how much time you have and how serious it is.
- Processing notices are automatic, generated when something on your return needs correcting (for example, CP11 or CP12 math adjustments). A human hasn’t looked at them yet.
- Examination notices mean the IRS is taking a second look at your return. They often arrive as Letter 2202 or 2205-A, followed by an Information Document Request (Form 4564).
- Collection notices mean the IRS believes you owe (for example, CP14). If you don’t act, they escalate to a CP504, a final warning before aggressive collection.
- Appeals notices arrive only after you’ve formally contested a decision, acknowledging your appeal and outlining next steps.
- Litigation notices, like a Notice of Deficiency (Letter 3219, the “90-day letter”), give you 90 days to petition the U.S. Tax Court before the assessment becomes final.
The deadline is the part people miss
IRS notices come with a firm response window, often 30, 60, or 90 days from the date on the letter. Miss it and you can lose rights you didn’t know you had. Put the deadline on your calendar the day the notice arrives, then work backward to leave time for review, documentation, and mailing. When you send your response, always use certified mail with a return receipt, and write the tracking number on the first page so it’s tied to the right submission.
Common questions
What happens if I ignore an IRS notice?
The IRS collection system escalates automatically. An unanswered notice moves from an initial notice to a Notice of Deficiency, to assessment, to collection notices, and eventually to liens or levies. Each step makes resolution harder and more expensive.
How long do I have to respond to an IRS notice?
Most notices give a fixed window, often 30, 60, or 90 days from the date on the letter. A Notice of Deficiency gives you 90 days to petition the U.S. Tax Court. These deadlines are firm, so calendar the date as soon as the notice arrives.
Should I call the IRS right away?
Not before you have a plan. Read the notice, pull your tax transcripts to understand what triggered it, then respond in writing by certified mail. A calm, informed response beats an immediate phone call.