Is an IRS letter always bad news?

No. The IRS frames a notice as something to review carefully and keep for your records, and says to act by the due date if it asks you to respond — which not every notice does. Read the notice number in the upper right corner and find the response date before assuming the worst. Do not assume the opposite either: a notice that does ask for a reply is the one that turns a small problem into a large one when it sits on the counter.

How do I tell whether an IRS letter is a scam?

The IRS normally makes first contact by mail delivered by the U.S. Postal Service. It emails or texts only if you opted in, and a social media direct message is never from the IRS. Neither the IRS nor its authorized private collection agencies will ever ask you to pay with a pre-paid card, a store card or an online gift card, and the IRS does not leave urgent or threatening voicemails saying a warrant will be issued for your arrest. To check a letter you actually received, sign in to your IRS Online Account, which shows your digital notices and your balance by tax year.

What happens if I ignore a CP2000?

The IRS sends a Statutory Notice of Deficiency. A CP2000 is a proposal to adjust your income, payments, credits or deductions, not a bill, which is why disagreeing with it is a normal and available response. Let the printed response date pass and the proposal hardens into a Notice of Deficiency, starting a 90-day clock to petition the U.S. Tax Court that the IRS says cannot be extended.

Can the IRS empty my bank account after a CP504?

Not on that notice alone. A CP504 is a Notice of Intent to Levy and it authorizes the IRS to take a state tax refund immediately; for other property the IRS says it may first send a notice giving you a right to a hearing. That further and final notice — LT11 or Letter 1058 — is what precedes a levy on wages or a bank account, and it carries 30 days from receipt to request a Collection Due Process hearing on Form 12153. For most Florida individuals the state-refund part is empty: the Florida Constitution bars a state tax on the income of individuals, so there is no state income tax refund to take.

Do I need a CPA to answer an IRS notice?

Often no. A notice asking for one missing form, or correcting an arithmetic error you agree with, is something you can handle yourself through the IRS Document Upload Tool in an afternoon. Get professional help when you disagree and the money matters, when the notice carries a deadline that expires a right, or when you cannot work out what the IRS is actually claiming. Check the credential: only a CPA, an enrolled agent or an attorney has unlimited rights to represent you before the IRS.

Is there free help if I cannot afford anyone?

Yes. The Taxpayer Advocate Service is an independent organization within the IRS and states that its service is always free. It is the route when the normal channels have stopped working for you.

IRS Letter: What to Do When One Arrives

The four steps, in order

Open it. Find the CP or LTR number in the upper right corner — that is what identifies the letter.
Find the response date printed on the notice. That date governs, not a day count you worked out yourself.
Check whether the number is one of the four that carry a right you can lose: CP2000, CP3219A, CP3219N, LT11.
Respond by the date even if you disagree. In the IRS wording: “To guarantee your appeal rights, reply by the due date.”

The IRS instruction for any notice is short. Review it carefully, keep it for your records, and if it asks you to respond, act by the due date. Almost everything that goes badly wrong with an IRS letter goes wrong because of that last clause.

Panic and avoidance produce the same outcome, which is why they are worth treating as one mistake. A notice that would have taken one emailed document to close becomes a lien, a levy, or a tax bill you no longer have standing to argue about.

Step one: the number in the corner

Every IRS notice has a CP or LTR number, and the IRS says you will find it on the right corner of the letter. It is the only part worth reading first, because it tells you what kind of letter you are holding and therefore what the stakes are. “I got a letter from the IRS” is not an answerable problem; “I got a CP2000” is.

The notices you are most likely to receive

Common IRS notices, what each one means, and the deadline or consequence attached to it
Notice	What it means	The clock	Stage
CP14	A balance due. The IRS says you owe money on unpaid taxes.	Pay or arrange payment by the date on the notice. Balance-due dates are generally 21 calendar days out, or 10 business days if the amount is $100,000 or more.	Reminder
CP501	A reminder that a balance is still owed on one of your tax accounts.	Ignoring it lets the IRS file a notice of federal tax lien against your property.	Reminder
CP503	The second reminder, sent because the IRS has not heard from you at all.	Pay the entire balance by the due date shown on the notice to avoid additional penalties and interest.	Reminder
CP504	Notice of Intent to Levy, under Internal Revenue Code section 6331(d). The reminders have stopped.	Authorizes the IRS to take a state tax refund immediately. Other property requires a further notice first.	Collection
CP2000	Automated underreporter. Income or payment data from an employer or bank does not match your return.	Not a bill — a proposal. Respond by the response date printed on the notice or a Notice of Deficiency follows.	Rights expire
CP3219A	A proposed change in your tax. The IRS states plainly that it is neither a bill nor an audit.	This is a Notice of Deficiency. The petition deadline cannot be extended.	Rights expire
CP3219N	A Notice of Deficiency, which the IRS itself calls the 90-day letter.	90 days from the date shown on the notice to petition the U.S. Tax Court — 150 days if you live outside the U.S.	Rights expire
LT11 / Letter 1058	In the IRS wording: it has not received payment for overdue taxes and intends to seize your property or rights to property.	30 days from receipt to request a Collection Due Process hearing on Form 12153.	Rights expire

Notice what is deliberately missing from that table: a day count for CP501, CP503 and CP504. The IRS pages for all three say only the due date shown on your notice. Plenty of sites publish a fixed number of days for each. Go by the paper in your hand.

Step two: the collection sequence

Balance-due notices escalate, and the escalation is visible in the letters themselves. A CP501 reminds you that a balance is still owed. A CP503 says the IRS has not heard from you and the balance is still there. Then the tone changes.

CP504 is the turn. It is a Notice of Intent to Levy issued under Internal Revenue Code section 6331(d) — the point at which the reminders stop being reminders. It is also the notice most often described inaccurately, in a way that matters here.

What a CP504 can and cannot do — and why Florida changes the answer

A CP504 authorizes the IRS to take a state tax refund immediately. For other property, the IRS says it may first send a notice giving you a right to a hearing. Levying wages, a bank account or other property therefore takes a further and final notice carrying hearing rights — an LT11 or Letter 1058.

And the one thing a CP504 can seize immediately does not exist for most readers of this page. The Florida Constitution bars a tax on the income of natural persons, so a Florida-only individual filer has no state income tax refund to take. That is not a reason to relax — it is a reason to understand that the scary sentence in the notice is describing something that has to come later, through a letter that gives you a hearing.

Step three: the notices where a right expires

Four letters are different in kind from the rest. Miss the date on one of these and you do not merely owe more money — you lose the ability to argue.

CP2000 — a proposal, not a bill

A CP2000 means third-party data does not match the return: an employer, a broker or a bank reported something your return does not show. In the IRS wording, it “isn’t a bill, it’s a proposal to adjust your income, payments, credits, and/or deductions.” Disagreeing is a normal, expected response, and the notice comes with a response form for exactly that.

Respond by the response date printed on your notice — generally about 30 days out, 60 if you live outside the United States. Do not count 30 days from the postmark and trust your own arithmetic; read the date off the page. If the IRS does not hear from you by that date, it sends a Statutory Notice of Deficiency, and the argument moves to a much more formal and less forgiving venue.

CP3219A and CP3219N — the 90-day letter

A Notice of Deficiency gives you 90 days from the date shown on the notice to file a petition with the U.S. Tax Court, or 150 days if you are outside the United States. The IRS calls CP3219N the 90-day letter itself. Asked directly whether the deadline can be extended, the IRS answer is no — though it will keep working with you on the substance during the period, so sending additional information as soon as possible is still worth doing.

This is the point on the whole page where a deadline is genuinely unforgiving. If you are holding one of these, the question is not whether to get help but how quickly.

LT11 and Letter 1058 — hearing rights, 30 days

The IRS wording is blunt: it has not received payment for overdue taxes and intends to seize your property or rights to property. What the letter also does is open a window. You have 30 days from receipt to request a Collection Due Process hearing, using Form 12153 (opens in new tab), Request for a Collection Due Process or Equivalent Hearing.

What waiting actually costs

The penalty arithmetic is the argument against letting a balance-due notice sit, and it is worth knowing before you decide to deal with it next month.

The failure-to-pay penalty runs at 0.5% of the unpaid tax for each month or part of a month it stays unpaid.
It is halved while an approved payment plan is in place, if you filed on time. That is a concrete reason to set one up rather than wait until you can pay in full.
It doubles to 1% per month if you do not pay within 10 days of a notice of intent to levy. A CP504 left unanswered costs money on a schedule.
It stops at 25% of the unpaid tax. Interest is separate and keeps accruing alongside it.

Balance-due dates are generally 21 calendar days after the notice is sent, or 10 business days if the amount owed is $100,000 or more.

How to respond

Online. The IRS Document Upload Tool (opens in new tab) takes scans, photos or digital copies as JPG, PNG or PDF files. You need the notice or letter number or title plus your name and tax ID, or an access code if one was provided. A CP2000 response can go this way, or by fax, or by mail. You cannot file a tax return through it — the IRS says it cannot process returns submitted that way.
Check the claim independently. Your IRS Online Account (opens in new tab) shows digital notices and balances owed by tax year. If a letter claims a balance your account does not show, that is worth knowing before you pay anything.
Keep the letter and a copy of everything you send. The IRS says to keep the notice for your records, and the notice number is what any later conversation will start from.

If you disagree: appeals

The IRS Independent Office of Appeals (opens in new tab) exists to resolve disputes without litigation, in a way it describes as fair and impartial to the government and to you. Disagreeing is not an act of defiance; it is a documented part of the system.

Start with a written protest, mailed to the IRS address on the letter that explains your appeal rights.
The time limit is generally 30 days from the date of the letter — the date printed on it, not the day it reached your mailbox.
A simplified Small Case Request is available when the entire additional tax and penalty proposed for each tax period is $25,000 or less.

Two entries in the Taxpayer Bill of Rights (opens in new tab) are worth reading before you concede anything: you are entitled to a fair and impartial administrative appeal of most IRS decisions, including many penalties, and you have the right to retain an authorized representative of your choice to deal with the IRS for you.

When the normal channels stop working

The Taxpayer Advocate Service (opens in new tab) is an independent organization within the IRS, and it states that its service is always free. It is not a shortcut to a better answer on the merits, and it is not a substitute for meeting a deadline. It is what exists for the case where the IRS itself has become the obstacle.

Is this letter even real?

Impersonation is common enough that the IRS publishes its own contact rules. Learn these four and most scams fall apart on contact.

What the IRS does

Normally contacts you the first time by mail delivered by the U.S. Postal Service
Emails only if you opted in
Sends text messages only if you opted in
Generally sends a letter before visiting — unannounced visits are rare

What it never does

Send a social media direct message. Never.
Make initial contact by email or social media
Ask for payment by pre-paid card, store card or online gift card — nor will its authorized private collection agencies
Call to demand payment now, threaten arrest, or leave urgent threatening voicemails

The IRS also names the behavioral tells, and they are the same five every time: the contact is unexpected, it rushes you, it threatens you, it asks for personal or financial information, and it demands payment now. The arrest-warrant threat in particular is a scammer signature — IRS Criminal Investigation special agents work criminal cases and do not call to demand money.

The safest check costs nothing: do not use any phone number or link in the message, sign in to your own IRS Online Account, and see whether the notice is there. Suspected phishing can be reported to the IRS through its reporting page (opens in new tab).

One Florida footnote

For a Florida individual, an IRS letter is usually the only tax letter there is. There is no Florida individual income tax return, so there is no state notice arriving alongside it and no state correspondence to cross-check it against. That cuts both ways: fewer letters to keep straight, and no second agency whose version of events might tell you the IRS has something wrong.

A Florida business is in a different position, because it does file with the state — corporate income tax, sales and use tax, reemployment tax. State correspondence follows state rules with their own deadlines, and nothing on this page describes them. This guide covers federal IRS notices only. Our guide on whether a Florida filer needs a CPA covers the state side of that split.

When you do not need to hire anyone

Most IRS notices are not a crisis and do not need a professional. Handle it yourself when:

The notice asks for one document you can find in ten minutes.
It corrects an arithmetic error and you look at it and agree.
It tells you a refund changed, or confirms something you already knew, and asks for nothing.
The balance is small, you owe it, and you can pay it or set up a plan.

Get help when you disagree and the money matters, when the notice is a CP2000, a Notice of Deficiency or an LT11, when the amount is large enough that being wrong is expensive, or when you have read the letter three times and still cannot tell what the IRS is claiming.

Check the credential before you pay anyone. Only a CPA, an enrolled agent or an attorney holds unlimited rights to represent you before the IRS — a preparer with nothing but a registration number has no right to represent you there at all. The difference is set out here, and it is the single most important thing to establish before handing a notice to someone.

Common questions

Is an IRS letter always bad news?: No. The IRS frames a notice as something to review carefully and keep for your records, and says to act by the due date if it asks you to respond — which not every notice does. Read the notice number in the upper right corner and find the response date before assuming the worst. Do not assume the opposite either: a notice that does ask for a reply is the one that turns a small problem into a large one when it sits on the counter.
How do I tell whether an IRS letter is a scam?: The IRS normally makes first contact by mail delivered by the U.S. Postal Service. It emails or texts only if you opted in, and a social media direct message is never from the IRS. Neither the IRS nor its authorized private collection agencies will ever ask you to pay with a pre-paid card, a store card or an online gift card, and the IRS does not leave urgent or threatening voicemails saying a warrant will be issued for your arrest. To check a letter you actually received, sign in to your IRS Online Account, which shows your digital notices and your balance by tax year.
What happens if I ignore a CP2000?: The IRS sends a Statutory Notice of Deficiency. A CP2000 is a proposal to adjust your income, payments, credits or deductions, not a bill, which is why disagreeing with it is a normal and available response. Let the printed response date pass and the proposal hardens into a Notice of Deficiency, starting a 90-day clock to petition the U.S. Tax Court that the IRS says cannot be extended.
Can the IRS empty my bank account after a CP504?: Not on that notice alone. A CP504 is a Notice of Intent to Levy and it authorizes the IRS to take a state tax refund immediately; for other property the IRS says it may first send a notice giving you a right to a hearing. That further and final notice — LT11 or Letter 1058 — is what precedes a levy on wages or a bank account, and it carries 30 days from receipt to request a Collection Due Process hearing on Form 12153. For most Florida individuals the state-refund part is empty: the Florida Constitution bars a state tax on the income of individuals, so there is no state income tax refund to take.
Do I need a CPA to answer an IRS notice?: Often no. A notice asking for one missing form, or correcting an arithmetic error you agree with, is something you can handle yourself through the IRS Document Upload Tool in an afternoon. Get professional help when you disagree and the money matters, when the notice carries a deadline that expires a right, or when you cannot work out what the IRS is actually claiming. Check the credential: only a CPA, an enrolled agent or an attorney has unlimited rights to represent you before the IRS.
Is there free help if I cannot afford anyone?: Yes. The Taxpayer Advocate Service is an independent organization within the IRS and states that its service is always free. It is the route when the normal channels have stopped working for you.

Holding a notice with a date on it?

Every CPA listed here comes from the state license register, and a CPA is one of the three credentials that can represent you before the IRS. Tell us what the letter says and we’ll connect you with one in Florida — free, no obligation.

Get Matched — Free →

Notice types, deadlines, penalty rates, appeal rights and the contact rules on this page all come from the IRS’s own published guidance — the notice and letter overview (opens in new tab), the individual notice pages for each CP number, the Collection Due Process FAQs, the Appeals pages, and How to know it’s the IRS (opens in new tab). The Florida point is from Article VII, section 5(a) of the Florida Constitution. Read September 20, 2026. This is general information, not tax advice — your notice governs, and the date printed on it is the one that counts.