You Got an IRS Letter. Here's Exactly What to Do.

RamGrows Financial team · 6 min read

An envelope from the IRS has a way of stopping your whole day. Your name through the little window, the official seal, the sense that something has gone wrong. If that letter is sitting in front of you right now, here is the first thing to know: this is fixable. People bring IRS letters into our office every single week, and nearly all of them get resolved with a few careful, unhurried steps. A letter is the start of a conversation, not a verdict.

So take a breath, get the letter, and walk through this with us.

Why the IRS sends letters at all

The IRS runs on mail. It does not open cases by phone, and it does not start them by email or text message. When the agency has a question, notices a mismatch, or wants to confirm something, it prints a letter and sends it. That means most letters are routine paperwork: a question about one line on your return, confirmation that a payment posted, a request for a form that never arrived.

This also gives you a powerful scam filter. If someone calls demanding immediate payment, threatens arrest, or asks for gift cards or a wire transfer, that is a scam, full stop. The real IRS starts with paper, gives you time to respond, and never asks to be paid in gift cards.

Open it the same day

The single most damaging thing you can do with an IRS letter is put it in a drawer. Every notice has a response window, often 30 or 60 days from the date printed on it, and that clock runs whether or not you read the letter. Ignored letters do not go away. They escalate into new letters with fewer options and bigger numbers attached.

Opened early, most problems are small. Opened late, small problems grow penalties and interest.

Read it like a professional would

Before you react to anything, find four facts. They are printed on the first page of almost every IRS notice:

1. The notice number, usually in a top or bottom corner. It looks like CP followed by digits, or LTR followed by digits, and it tells you exactly which letter you are holding.
2. The tax year it concerns. IRS letters often arrive a year or two after the return in question, so a letter arriving today may be about a return you filed long ago.
3. What the IRS says changed or is owed, and how it arrived at that number. The math is always shown somewhere in the letter.
4. The respond-by date. Circle it. Put it in your phone.

Then read the letter twice, slowly the second time. Many letters that look like bills are actually proposals: the IRS is suggesting a change and inviting you to agree or disagree. That distinction changes everything about your next move.

What the common letters actually say

A mismatch letter (the CP2000)

The CP2000 is one of the most common notices we see, and it is not an audit. It means the income that employers, banks, or payment platforms reported to the IRS does not match what was on your return, so the IRS proposes a change and shows the extra tax it believes would result. Sometimes the IRS is right, because a W-2 or 1099 was genuinely missed. Often it is only half right: it added the missing income but none of the deductions that belong with it. Self-employed people see this constantly, because the IRS may add gross 1099 income with zero of the mileage and expenses that offset it. If that sounds like your situation, our guide to taxes for Uber and Lyft drivers in NYC shows how large those deductions can be.

A balance due notice

These letters state that you owe a specific amount and ask for payment. Verify before you pay anything: was the original return correct, was a payment misapplied, is the charge legitimate? If the balance is real and you cannot pay it all at once, the IRS offers payment plans. A letter is not a demand that you empty your savings today.

An identity verification letter

Some letters ask you to confirm that you, and not an impostor, filed a return in your name. This one is protective rather than accusatory, but your refund stays frozen until you complete the verification, so act quickly. We cover how holds like this affect your money in how refund timing actually works.

A missing return letter

If the IRS believes you were required to file for a year and did not, it will say so and ask for the return. If you have unfiled years behind you, do not panic and do not ignore it: there is a well-worn road back, and we walk it step by step in Haven't Filed in Years? Here's the Road Back.

How to respond

• If you agree with the letter, follow its instructions to sign, pay, or set up a payment plan.
• If you disagree, respond in writing before the deadline, explain why, and attach copies of the documents that prove your point. Never send originals.
• Keep everything: the letter, your response, your proof, the mailing receipt. Send anything important by certified mail so you can prove when it arrived.
• Ask for time if you need it. The IRS routinely grants short extensions to respond when you ask before the deadline passes.

Never pay a proposed amount just to make the letter stop. We regularly see proposed balances shrink dramatically once the full picture, with all the deductions and corrections, is in front of the IRS.

What not to do

• Do not throw the letter away or wait to see if another one comes. It will, and it will be worse.
• Do not call a number from a text or email claiming to be the IRS. Use only the phone number printed on the official letter, or work through a preparer.
• Do not sign anything you do not fully understand. Agreeing to a proposed change is hard to undo later.
• Do not assume a letter means arrest, deportation, or ruin. Tax notices are administrative. They are about numbers, and numbers can be corrected, disputed, and paid over time.

When to bring in help

Bring the letter to a professional if the amount is large, if you cannot tell what is being claimed, if it touches years you never filed, or if working through official English-language mail is simply exhausting. Someone who handles notices every week can usually tell you within minutes what the letter means and what your realistic options are. That conversation alone tends to lower everyone's blood pressure.

This article is general information, not personal tax advice for your specific situation.

RamGrows Financial handles IRS letters, ITINs, and prior-year filings every day, in seven languages. Bring the letter to us before the deadline passes: call (201) 253-7771 or walk into 509 Brighton Beach Ave, Suite 1, Brooklyn.