You received an LT11 — you have 30 days before the IRS can legally seize your assets. Here's what that means.

Why LT11 is different from every notice that came before it

Every notice before LT11 — the CP14, CP501, CP503, CP504, and sometimes CP504B — was the IRS asking you to pay and warning you of consequences. LT11 is different. It is the IRS fulfilling its legal obligation under IRC § 6331(d) to notify you of imminent enforcement, and under IRC § 6330 to inform you of your right to a hearing before that enforcement begins. Functionally, LT11 and Letter 1058 are the same notice — LT11 is generated by the IRS's Automated Collection System (ACS) and tends to be a shorter version of the same content; Letter 1058 is typically issued by a Revenue Officer on a manually assigned case. Both carry identical 30-day rights.

The reason this matters: by law, the IRS cannot levy wages, bank accounts, or most other assets until they've issued this Final Notice and you've had the opportunity to request a Collection Due Process hearing. Once the 30-day window closes without a timely CDP request, that legal protection disappears entirely.

If your balance is large enough, an unresolved LT11 track can also intersect with passport certification under the FAST Act (IRC § 7345) — the 2026 "seriously delinquent" threshold is over $66,000 in combined tax, penalties, and interest, a figure several LT11 explainers currently understate as roughly $62,000.

Where other LT11 guides fall short — and how we keep this one current

Before trusting any LT11 guide — including this one — it's worth checking when it was actually last updated and against what. A few honest observations about what's currently ranking for "LT11" and "Letter 1058":

• Some of the most-cited guides are years out of date. One widely-linked H&R Block explainer carries a 2020 publish date — predating both Boechler (2022) and Commissioner v. Zuch (2025), the two Supreme Court cases most relevant to the CDP rights this notice triggers.
• The passport threshold error repeats here too. Just like several CP504 pages, more than one LT11 explainer currently cites the seriously-delinquent-debt threshold as roughly $62,000 — the correct, current 2026 figure is over $66,000.
• The "last known address" rule is rarely stated clearly. Most guides describe the 30-day deadline without noting that it runs from your address of record, not your actual mailbox — a meaningful risk for anyone who's moved recently.
• No case law is cited anywhere in the current LT11 SERP — the Boechler remand and Zuch mootness rulings above don't appear in any competing explainer we found, despite both directly concerning the CDP hearing this exact notice creates.

Recent rulings on the exact deadline this notice triggers (2025–2026)

Nearly every LT11 page repeats the same line: the 30-day CDP deadline is strict, so file on time. What almost none explain is that this specific deadline has been through the Supreme Court and back down to the Tax Court in the last few years — and the most recent chapter, decided in 2025, is a cautionary tale worth knowing before you assume you have any flexibility.

Boechler v. Commissioner — the case that created "equitable tolling" for this exact deadline

In 2022, a unanimous Supreme Court held in Boechler, P.C. v. Commissioner, 596 U.S. 199 (2022), that the 30-day deadline in IRC § 6330(d)(1) — the same statute that governs the CDP hearing right an LT11 triggers — is not jurisdictional, and can in rare cases be equitably tolled (extended) rather than being an absolute bar. The Court sent the case back to the Tax Court to decide whether the firm actually qualified for that tolling on its specific facts.

What happened on remand in 2025 — the taxpayer who won the principle still lost the case

In June 2025, the Tax Court held the trial on remand. The sole witness was the firm's own attorney, who testified she had miscalculated the deadline while managing a heavy caseload. The court found that missed the mark on both required elements — diligence in pursuing the appeal, and truly extraordinary circumstances beyond her control — and ruled against the firm that had won the underlying Supreme Court case. Being busy, or making a scheduling mistake, was not enough.

Commissioner v. Zuch (2025) — a second reason not to let your case run past the levy itself

Separately, the Supreme Court held in Commissioner v. Zuch, 605 U.S. 422 (2025), that the Tax Court loses jurisdiction over a CDP case once the IRS is no longer pursuing the levy that triggered it — for example, if the IRS satisfies the balance through refund offsets while your case is pending. That means even a properly and timely filed CDP request can be mooted out from under you before a judge rules on the underlying dispute, if the balance disappears in the meantime.

What the Collection Due Process (CDP) hearing actually does

Filing a timely CDP request (using Form 12153) does several things simultaneously:

• Immediately stops all levy action — wages cannot be garnished, bank accounts cannot be frozen, and property cannot be seized while your CDP request is pending.
• Puts your case in front of an independent appeals officer — not the collection division that issued the LT11, but the IRS's Independent Office of Appeals.
• Gives you the right to propose collection alternatives — installment agreement, Offer in Compromise (if not resolved within 24 months the IRS hasn't acted on, it's deemed accepted), Currently Not Collectible status, or even withdrawal of the lien.
• Gives you the right to challenge the underlying liability — but only if you never had a prior opportunity to contest it. If you already went through an audit or a prior CDP hearing, you cannot use this one to re-litigate the tax amount.
• Preserves your right to Tax Court — if the appeals officer's determination goes against you, you have 30 days to petition the U.S. Tax Court, which provides judicial review of the IRS's collection action.

How to file a CDP hearing request — step by step

1. Act immediately. The 30-day clock starts on the notice date, not the date you received the letter. Mail takes days. If you're reading this close to the deadline, file today.
2. Complete Form 12153 (Request for a Collection Due Process or Equivalent Hearing). Download it from IRS.gov. Fill out the notice number, tax period, and your proposed collection alternative — you must specify what resolution you're proposing (installment agreement, OIC, CNC, lien withdrawal, or challenging the underlying liability).
3. Send to the address on your LT11. The address on the notice is not the same as your regular IRS correspondence address — it goes to a specific IRS Appeals Processing Center. Use certified mail with return receipt so you have dated proof of timely filing.
4. Follow up. The IRS is required to acknowledge receipt of your CDP request and assign a case to the Independent Office of Appeals. This can take several months. While it's pending, collection is legally stayed.

What happens at the CDP hearing

A CDP hearing is a conference with an IRS Appeals Officer — it's not a courtroom proceeding. It typically happens by phone or by correspondence (rarely in person). You present your proposed resolution, the appeals officer evaluates your financial situation and the IRS's procedures, and a determination is issued.

The Appeals Officer can accept your proposed installment agreement, refer your Offer in Compromise for formal review, grant CNC status, or uphold the levy. If they uphold the levy and you disagree, you can petition Tax Court within 30 days of their determination.

What if you miss the 30-day deadline?

If you miss the CDP deadline, you're not completely out of options — but you lose the most powerful ones. You can request an Equivalent Hearing within one year of the LT11 date. This provides a similar conference with Appeals, but critically, it does not stop levy action while pending, and you cannot petition Tax Court if the determination goes against you.

You can still pursue an installment agreement, OIC, or CNC status directly through the collection division. But you've lost the automatic stay on levy and the judicial review pathway.

Exactly how to fill out Form 12153 — the CDP hearing request

Form 12153 (Request for a Collection Due Process or Equivalent Hearing) is a one-page form but the way you complete it determines what you can argue at the hearing. Filling it out incorrectly — or leaving the reason blank — severely limits your CDP rights.

The critical field: "Reason for Appeal"

Box 7 on Form 12153 asks you to explain why you're requesting the hearing. Most people write something vague like "I disagree with the levy" or leave it blank. This is a major mistake. Under IRC § 6330(c), you can only raise issues at the CDP hearing that you checked or described on Form 12153. Whatever you don't raise on the form, you generally cannot raise later.

For maximum protection, include all of these that apply:

• "I wish to explore collection alternatives" — this preserves your right to request an installment agreement, OIC, or CNC status at the hearing
• "I contest the underlying liability" — only available if you never received a prior notice and demand or had no prior opportunity to dispute the liability
• "I claim spousal defense under IRC § 6015" — if relevant to your situation
• "I believe IRS collection procedures were not followed" — preserves procedural challenges
• "I am experiencing economic hardship" — relevant if seeking CNC status

Where and how to file Form 12153

• Mail to: The address shown on your LT11 notice — this goes to the specific IRS Campus or ACS unit that issued the notice
• File certified mail, return receipt requested — you need proof of the mailing date. The 30-day deadline is based on the date the LT11 was mailed to you, not the date you received it. Keep your certified mail receipt.
• Include a copy of the LT11 with your Form 12153 so the IRS can match it to your account quickly
• Do not pay the balance before filing — payment may waive certain CDP rights

What happens after you file Form 12153

Within 2-4 weeks, you'll receive a letter from the IRS Office of Appeals acknowledging receipt of your CDP hearing request. The IRS is prohibited from levying while your CDP case is pending — this is the immediate practical protection the CDP hearing provides. The prohibition on levy lasts until:

• The Appeals Officer issues a Notice of Determination (their final decision)
• You fail to timely petition Tax Court after receiving the Notice of Determination
• The Tax Court case is resolved

Average CDP hearing processing time in 2025-2026: 6-12 months due to IRS staffing reductions. This extended timeline, while frustrating, also means extended protection from levy.

Frequently asked questions about LT11