Got a Letter From the IRS? What to Do First
Last reviewed by Calculus Tax in-house Settlement Officer
Most IRS letters are about a balance due, a change to your refund or return, a question about your return, identity verification, or a processing delay. Find the notice number in the right corner, look it up on IRS.gov, and act by the due date. You only need to reply if the notice asks you to, you owe money, or you disagree.
Quick answer
Find the notice number in the right corner of the letter and look it up on IRS.gov to see what it means. Note the due date. If you agree, take the requested action; if you disagree, follow the dispute instructions and send documents by the due date to protect your appeal rights. If you owe, pay what you can by then.
| Notice number | In the right corner, such as CP14 or LTR 3172 |
|---|---|
| Suspicious letter | Call 800-829-1040 |
| Appeal rights | Reply by the due date to guarantee them |
| When a reply is needed | If the IRS asks, you owe money, or you disagree |
| If you owe | Pay what you can by the due date to reduce interest and penalties |
| Accessible notices | Form 9000 for Braille, large print, or audio |
Step 1: Find the Notice Number
Every IRS notice or letter has a number, such as CP14 or LTR 3172, in the right corner. Search for it on IRS.gov to read what that notice means and what the IRS expects. Keep the notice for your records.
Step 2: Make Sure It Is Real
If the notice does not appear in the IRS.gov search or looks suspicious, call the IRS at 800-829-1040 and follow the representative's instructions. The IRS never demands immediate payment by phone or threatens arrest. See how to tell if IRS contact is a scam.
Step 3: Find the Deadline
If the IRS asks you to respond, act by the due date on the notice. The IRS says replying by the due date guarantees your appeal rights. Deadlines on collection notices, such as the 30-day hearing window on a final notice of intent to levy, can be the difference between keeping and losing important rights.
Step 4: Decide Whether You Agree
If you agree, take the requested action; you do not need to reply unless the IRS specifically asks. If you disagree, follow the dispute instructions in the notice and include information and copies of documents for the IRS to review. If the IRS changed or corrected your return, compare its figures with your return.
Step 5: If You Owe Money
Even if you cannot pay the full amount, the IRS says to pay what you can by the due date to reduce interest and penalties. Then look at IRS payment plan options, including a short-term plan of up to 180 days with no setup fee.
Common IRS Notices and What They Mean
CP14: first bill for a balance due. CP501 and CP503: reminders. CP504: notice of intent to levy. LT11 or Letter 1058 and CP90: final notices with hearing rights. CP2000: proposed changes. Letter 3172: lien filed. CP523: payment plan default. CP5071: identity verification. Letter 525: proposed audit changes.
Keep Records and Go Paperless
Keep every notice with your tax records, along with copies of anything you send. You can get certain notices and letters in your IRS Online Account. To receive notices in Braille, large print, or audio, file Form 9000, Alternative Media Preference.
When to Get Help
Get help when a notice involves a levy, a lien, a hearing deadline, several tax years, or an amount you cannot pay. Low Income Taxpayer Clinics and the Taxpayer Advocate Service help eligible taxpayers. Calculus Tax reviews your IRS transcripts with Brevitax, and our in-house Settlement Officer reviews the response. Contact us.
Frequently Asked Questions
Do I have to respond to every IRS letter?
No. The IRS says you only need to take action if it asks for more information, you have a balance due, or you disagree with the notice.
What if I missed the deadline on an IRS notice?
Respond as soon as possible by calling the number on the notice. Missing a deadline can cost you appeal or hearing rights, so act quickly and ask what options remain.
How do I know if an IRS letter is real?
Search the notice number on IRS.gov. If it does not appear or looks suspicious, call the IRS at 800-829-1040.
Can I see my IRS notices online?
Yes, certain notices and letters are available in your IRS Online Account.
What does it mean if the IRS changed my return?
Compare the notice with your return. If you agree, note the corrections on your copy. If you disagree, follow the dispute instructions by the due date.
Should I pay even if I cannot pay it all?
Yes. The IRS says paying what you can by the due date reduces interest and penalty charges. Then set up a payment plan for the rest.
What can change the answer
Notice type, issue date, filing history, account status, deadlines, and current agency procedures can change the available next step. Bring the complete notice and account records to a qualified review.
Tax rules and collection procedures can change and depend on the account. Federal claims should be checked against current IRS guidance; California claims should be checked against the California Franchise Tax Board. See our editorial methodology for sourcing and update standards.
Results depend on your facts and on IRS or state decisions. Calculus Tax, Inc. is not affiliated with the IRS or any government agency.
When professional help may make sense
Calculus Tax, Inc. can review notices, organize financial information, explain available paths, and communicate with the IRS or California agencies when representation is appropriate. The right next step depends on your facts, deadlines, filing history, and ability to pay.
We are based in Burbank and serve clients in Burbank and throughout Los Angeles County. See our local service-area pages for location-specific information.
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Calculus Tax, Inc. helps individuals and businesses understand IRS debt, audits, notices, and collection options. We explain the process, review the available paths, and help coordinate next steps.