What this notice is about Your recent payment was applied to your account; however, there’s still an outstanding balance. What you need to do Pay your balance in full by the date shown on your notice to avoid paying more in penalties and interest. If you don’t think you owe additional tax or believe you’ve paid the full balance: You can find additional information about your balance and payment history in your Individual Online Account (not eligible for business entities); or You can call the number shown on your notice for an explanation of your outstanding balance; or You can contact us by mail at the address shown in the “Additional information” section of your notice. When you contact us, you can mail supporting documentation to show you have paid your balance in full. Still have questions about your LT33 notice? Chat with us now – we're available online: Monday-Friday: 8 a.m. – 10 p.m. Eastern time/5 a.m. – 7 p.m. Pacific time Saturday-Sunday: Unavailable Chat Now Reference tools Publication 1, Your Rights as a Taxpayer Publication 594, The IRS Collection Process PDF Publication 1660, Collection Appeal Rights PDF Notice 746, Information About Your Notice, Penalty and Interest PDF Paying your taxes Full list of tax forms and instructions Need help? You can authorize someone to represent you before the IRS or inspect and/or receive confidential tax information. You may be eligible for free help from the Taxpayer Advocate Service (TAS). See if you qualify for help from a Low Income Taxpayer Clinic. You can request a copy of your notice or letter in Braille or large print. If you can’t find what you need online, call the telephone number on your notice or letter.