Place an X in the box that represents the type of letter you received from the IRS. For example, if you received a Notice of Deficiency, check that box.General Information. Use the menu to the left for complete information about Utah sales and use taxes. (2) Remove note to hold processing of Form 1099K, programming issue has been resolved. The tax audit letter should contain a list of information that the IRS will need to complete the audit. Filing a Case in the United States Tax Court. Before filing your case in the United States Tax Court, please read these instructions carefully. The audit reconsideration request is a filing a taxpayer can make to ask the IRS to reconsider its prior changes to a tax return. The LDT should list the contents of the Lockbox mail out package(s).