IRS Notice Deadline Calculator: Find Your Last Day and Get Your Reply Out in Time
Your IRS notice sets a count, such as 30 or 90 days, and taxpayers in your state who miss it lose key rights.
Call now and a licensed tax pro checks your last day and your reply for free, then starts on your case today.
We answer your call, read through your letter for free, and get your reply started right away. Pick your letter and add its date Add the letter date to see your last day, counted from the date printed on the letter. The date printed on the letter controls. Your notice has a hard last day, and missing it can mean a lost hearing or money taken from your account. A licensed tax pro for taxpayers in your state checks your deadline, reviews your reply and starts on your case today. Call now and get your reply out before your last day. We answer your call, read through your letter for free, and get your reply started right away.Count my days
What to do first
Get your last day and reply checked now
Send your notice details for a deadline check
What happens if I miss my last day?
Each notice code has its own count. Missing the last day costs you a right you cannot get back.
- LT11, day 30: You lose the Collection Due Process hearing, and the IRS can take money from your wages or bank account. Form 12153 must go out by the hearing request deadline printed on your LT11 or Letter 1058, as the Collection Due Process FAQs explain.
- CP3219A, day 90: The Tax Court cannot take your case, and the IRS assesses the tax. Your petition must be filed before day 90, even while talks with the IRS go on, per the IRS CP3219A page.
- CP161, day 10: The 10 days the IRS asks for to report a mistake have passed, and interest keeps growing. A licensed tax pro can still compare the notice payments with your records.
How do I use the IRS notice deadline calculator?
Your count starts on the date printed on your letter. Enter that date in the calculator above.
Match the notice code to its count, such as 30 days for an LT11 or 90 days for a CP3219A. The Collection Due Process rules set the LT11 count.
Mark your last day on a calendar and plan to mail before it. You can find your code in all notice codes.
What should I do if my last day is close?
If your last day is less than 10 days away, call today so your reply goes out in time.
A licensed tax pro checks your deadline and reviews your reply before you mail it. On an LT11, they can file Form 12153 for a Collection Due Process hearing. They can also set up a payment plan before the IRS can take your money.
How many days does each letter give you?
| Letter | Days | Counted from |
|---|---|---|
| CP2000 (income mismatch) | 30 | The date on the letter |
| LT11 or Letter 1058 (final levy notice) | 30 | The date on the letter |
| CP90 (federal payment levy) | 30 | The date on the letter |
| CP523 (payment plan in default) | 30 | The date on the letter |
| CP3219A (90-day letter) | 90 | The date on the letter |
| Letter 12C (missing information) | 20 | The date on the letter |
| CP14 (printed due date) | Printed due date | The due date on the bill |
| CP161 (balance due) | 10 | The date on the letter |
Questions people ask
When does the count on my IRS notice start?
The count starts on the date printed on your letter. Enter that date in the calculator to see your last day.
How many days do I have to answer an LT11?
You have 30 days to request a Collection Due Process hearing with Form 12153. After that day, the IRS can take money from your wages or bank account.
Can I still go to Tax Court after day 90?
No. Once day 90 on a notice of deficiency passes, the Tax Court cannot take your case and the IRS assesses the tax.
What if I already missed my last day?
Call us now. A licensed tax pro goes through your options for free, such as a payment plan, and starts on your case today.
Where this comes from
What to do now
- Call us so a licensed tax pro can check your deadline and your reply for free.
- Find the date printed on your letter, because the count starts there.
- Match the notice code to its count, such as 30 days or 90 days.
- Mark your last day on a calendar and mail your reply before it.
We answer your call, read through your letter for free, and get your reply started right away.
Confirmed 8 Sep 2026