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IRS LT16:here's whatit means.
Contact us about overdue taxes. The IRS wants you to call about unpaid taxes or unfiled returns. Your account may be close to enforced collection.
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- “Mauricio literally saved the day and was so accommodating to my last minute requests.”Christine H.
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- “Alondra is amazing! She took the time to explain everything to me in detail.”Valerie M.
- “Mauricio will educate you on how to save money on your taxes and do it RIGHT!”Chelsea J.
- “Thank you for your patience, expertise, and easygoing professionalism throughout tax season.”Danielle C.
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- “Mauricio, is amazing! Very knowledgeable & professional.”Ron B.
- “Mauricio and his team is the Best in the tax industry!”Marisol V.
- “Professional, and easy place to get your taxes done!! Recommended.”Donald S.
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- “Mari was so knowledgeable.”Teresa
- “Mauricio and Alondra were of great help!”Drew
- “Mauricio and his team are amazing.”Lizbeth P.
What is IRS LT16?
Contact us about overdue taxes. The IRS wants you to call about unpaid taxes or unfiled returns. Your account may be close to enforced collection. Respond right away. The letter gives a date to contact the IRS.
Updated November 2026. Serving all of California online.
Deadline
Respond right away. The letter gives a date to contact the IRS.
If you ignore it
The case can be assigned to a revenue officer or move to levy.
What to do now.
- 1Don't ignore it. Respond by the date in the letter.
- 2File any missing returns so you can qualify for payment options.
- 3Have a representative contact the IRS to agree on a resolution before enforcement.
General information, not legal advice. The exact deadline is printed on your notice.
Common questions.
Is IRS LT16 real or a scam?
Real IRS notices arrive by U.S. mail, not by text, social media, or a surprise phone call demanding payment. To verify, compare it with your IRS online account or call the number listed on IRS.gov, not a number from a suspicious message. We can check it for you.
Can MM.TAX respond to IRS LT16 for me?
Yes. Our practice is led by an IRS Enrolled Agent. We file a power of attorney (Form 2848), pull your transcripts, and respond to the IRS for you, online anywhere in California.
What if I can't pay what the IRS says I owe?
You have options: an installment agreement, an Offer in Compromise if you qualify, penalty abatement, or currently-not-collectible status during hardship. The right choice depends on your income, assets, and the amount owed.
IRS notices
Look up another letter.
- CP14Balance due
- CP501Reminder: unpaid balance
- CP504Notice of intent to levy
- LT11Final notice of intent to levy
- CP2000Proposed changes to your return
- CP3219ANotice of deficiency
- Letter 3172Federal tax lien filed
- Letter 566Audit or examination
- CP2501Income doesn't match your return
- CP59No record of your tax return
- CP11Changes to your return, balance due
- CP161Business balance due
- Letter 1153Trust fund recovery penalty proposed
- Form 668-ABank or wage levy
Get started
Let us handle your LT16.
Free 30-minute review with a senior advisor. Call the online team or answer a few questions.