Understanding your LT18 Notice

We have not received a response from you to our previous requests for overdue tax returns.


What you need to do

  • Mail your return to the address on the letter within 10 days from the date on the letter.
  • If you’ve already filed, call the telephone number listed on the letter.
  • If you’re not required to file, call the telephone number listed on the letter.

You may want to

Call us for assistance at the toll-free telephone number listed in the top right corner of your letter.


Answers to common questions

What if I already filed the return? If it’s been over 10 weeks since you mailed it, send a signed copy of it to us again.

What if I had no employees during the tax period shown on the letter? Please contact us with that information.

Printable samples of this notice (PDF)

Need Help?

  • You can authorize someone to contact the IRS on your behalf.
  • See if you qualify for help from a Low Income Taxpayer Clinic.
  • If you can’t find what you need online, you can call the IRS at the 800, 866, or 888 number listed on the notice.