Check the letter for identifying features Look for the official IRS logo and letterhead, including the correct address and phone number. Dates should be recent, accurate, and accurately formatted (month spelled out), and they should include official IRS security or file numbers you can refer to for more information.
Steps Format a business letter. Add the IRS address. Include your personal information. Insert your salutation. Include a copy of the notice you received from the IRS. Identify the information you are providing. Close the letter on a friendly note. Identify any enclosures.
Write the Request Letter: Craft a detailed letter to the IRS that includes: The taxpayer's identification information (name, address, Social Security number, or tax ID number). A statement requesting the First Time Abatement. An explanation of each penalty notice received, including the date and the type of penalty.
Write to explain why you disagree and include any documents and information you wish the IRS to consider, along with the bottom tear-off portion of the notice. Mail the information to the IRS address shown in the lower left part of the notice. Allow at least 30 days for a response.
Reasonable cause The IRS will consider this relief when the taxpayer can show they tried to meet their obligations, but were unable to do so. Situations when this could happen include a house fire, natural disaster and a death in the immediate family.
When requesting abatement of penalties for reasonable cause, your statement should include supporting documentation and address the following items: The reason the penalty was charged. The daily delinquency penalty may be charged for either a late filed return, an incomplete return, or both.
3. Structure Your Letter Properly Your name, address, and contact information. A statement expressing your desire to appeal the IRS's findings. The tax period(s) in question. A list of the items you disagree with and why. Facts supporting your position. Any relevant law or authority supporting your case.
TLDR: Don't just use Priority Mail thinking that since it's by the government and has tracking that the IRS will accept that as proof of mailing. Certified Mail or Registered Mail are the best and really should be the only methods you use.