Blog · Taxes · October 18, 2026

Got a Letter From the IRS? Here's Exactly What to Do (Without Panicking)

There's nothing quite like opening your mailbox and seeing that envelope. Internal Revenue Service. Your heart drops, your mind races, and suddenly you're wondering if you should've just stayed off the grid.

Let me stop you right there. Most IRS letters are not an emergency, and most are very fixable. The IRS sends millions of notices every year for all kinds of reasons, and plenty of them are routine. The only truly bad move is ignoring it.

Here's my step-by-step plan for what to do when the IRS writes you.

Why Did the IRS Send Me a Letter?

The IRS says it sends notices and letters when:

You have a balance due
Your refund changed
They have a question about your return
They need to verify your identity
They changed or corrected your return
Your return's processing is delayed

None of those automatically mean "audit." Many are simply math corrections or mismatched forms.

Step 1: Make Sure It's Really From the IRS

Scammers love to pretend to be the IRS. Remember:

The IRS usually makes first contact by mail, not by phone, text, email, or social media DM
The IRS will not demand payment by gift card, crypto, or wire transfer
The IRS will not threaten to have you arrested by local police

Look in the upper right corner for a notice number that starts with "CP" or "LTR." You can search that number on IRS.gov. If the letter doesn't show up, or something feels off, call the IRS directly at 800-829-1040 (not the number on a suspicious letter).

Step 2: Read the Whole Thing (Yes, All of It)

I know. It's dense. But the letter tells you:

Why they're writing
What tax year it's about
What they want you to do
The deadline to respond

Write the due date on your calendar right now. Many notices give you around 30 days, and that deadline protects your rights.

Step 3: Compare It to Your Tax Return

Pull out your copy of the return for that year (or grab a transcript from your IRS online account). Check what the IRS says against what you filed. Then decide which bucket you're in:

If you agree

Take the action they ask for. If they changed your return and you agree, note the changes on your copy and keep it. You usually don't need to reply unless they specifically ask you to.

If you disagree

Follow the instructions in the notice to dispute it. Include an explanation and copies (never originals) of documents that support your side. To protect your appeal rights, reply by the due date.

If you owe money

Even if you can't pay it all, pay what you can by the due date. That reduces interest and penalties. If you need more time, you can ask about a payment plan.

The Most Common One: The CP2000 Notice

If I had to pick the letter I see most, it's the CP2000. Here's what it means in plain English:

The IRS got information from someone else, like an employer, bank, brokerage, payment app, or online marketplace, and it doesn't match what's on your return.

Common causes:

A forgotten 1099-NEC from a side gig
A 1099-K from a payment app
Stock sales with missing cost basis
Unemployment benefits or retirement distributions
Interest from a savings account you forgot about

A CP2000 is NOT a bill

This is huge. The IRS's own page says a CP2000 isn't a bill. It's a proposal. The amount might go up, down, or not change at all once your side is heard.

How to respond to a CP2000

Read the notice and the proposed changes line by line.
Complete and sign the response form if one is included. Check whether you agree or disagree.
If you disagree, explain why and attach copies of proof (for example, a corrected 1099 or records showing your cost basis).
Send it by the date listed using the IRS document upload tool, fax, or mail, as the notice instructs.
If you agree and have no other changes, you generally don't need to file an amended return. Just follow the notice's instructions.
If you agree and have other income, credits, or expenses to report, file Form 1040-X, write "CP2000" at the top, and send it with your response.

If you don't respond, the IRS may send another notice and then a bill.

Need more time? You can request an extension to respond. Do it before the deadline.

Step 4: Get Help If You Need It

You don't have to deal with the IRS alone. You can:

Virginia Harris Enterprise helps with IRS notices and audits and offers a free consultation. Help with IRS notices and audits.
Contact the Taxpayer Advocate Service if you're facing a financial hardship or the problem isn't getting resolved through normal channels
Look into a Low Income Taxpayer Clinic if you qualify

Step 5: Keep Good Records and Prevent the Next One

Most CP2000s are preventable. Before you file next time:

Wait until all your forms arrive before filing. Many 1099s come in late January or February
Check every W-2, 1099, and 1098 against your own records
Report all income, even without a 1099. The 1099-NEC threshold rose to $2,000 for payments made in 2026, but all income is still taxable
Keep the notice and your response with your tax records

IRS Letter Quick-Reference Checklist

Confirm it's real (notice number, IRS.gov lookup)
Note the deadline
Compare to your return
Decide: agree, disagree, or partial
Gather copies of supporting documents
Respond by the deadline (upload, fax, or mail)
Pay what you can if you owe
Keep copies of everything

Frequently Asked Questions

What should I do first when I get a letter from the IRS?

Don't ignore it. Confirm it's real, find the notice number and due date, read the whole letter, and compare it to your return for that tax year.

Does an IRS letter mean I'm being audited?

Usually not. Most letters are about a balance due, a changed refund, a question, identity verification, or a correction. A CP2000 is a proposed change based on mismatched information, not a bill.

How long do I have to respond to an IRS notice?

The deadline is printed on your notice. Many notices give about 30 days. Respond by that date to protect your appeal rights, and request an extension before it passes if you need more time.

How can I tell if an IRS letter is a scam?

Real letters include a notice or letter number you can look up on IRS.gov. The IRS won't demand gift cards or crypto. If you're unsure, call 800-829-1040 directly.

Can a tax professional handle an IRS letter for me?

Virginia Harris Enterprise helps with IRS notices and audits and offers a free consultation. Help with IRS notices and audits.

Don't Face That Envelope Alone

Bring me your letter. I'll help you read it, figure out what the IRS actually wants, and put together a response. Book at virginiaharrisenterprise.com or call 770-375-0353. And whatever you do, don't toss it!

Notes & Sources

Reasons for notices, agree/disagree/pay steps, scam phone line: IRS "Understanding your IRS notice or letter" (updated May 26, 2026).
CP2000 "isn't a bill," response form, upload/fax/mail, 1040-X with "CP2000," extension request, Form 2848: IRS "Understanding your CP2000 series notice."
IRS first-contact-by-mail and scam guidance: IRS "How to know it's the IRS."
1099-NEC $2,000 threshold: IRS information-return page.