What this notice is about We received your Form 720, Quarterly Federal Excise Tax Return PDF, but it doesn’t show a breakdown of the type of tax (coal, gas, oil, etc.) and the amount applied to each for the tax period shown on your notice. What you need to do Complete the information requested on the Form 15105, No Breakdown of Liability By Abstract Number on Form 720 PDF, enclosed with your notice. Return the form with the response stub in the enclosed envelope. Make sure the IRS address shows through the window of the envelope. If we don’t hear from you within 30 days from the date of this notice, your account will show incomplete information. This could result in your account having additional penalties and interest assessed. You may want to Review Form 720 PDF for: A description of the different types of excise taxes. The proper IRS No. assigned for each type of excise tax. The IRS No. is listed on the right and left columns of the form. Tips for next year Review Form 720 before filing to ensure: List the tax for each type of excise tax being reported. Complete Part III of the form. Reference Tools Publication 1, Your Rights as a Taxpayer PDF Publication 510, Excise Taxes PDF Form 720, Quarterly Federal Excise Tax Return PDF Full list of tax forms and instructions 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, call the IRS number at the top of your notice or letter.