45 IAC 15-5-1 Notice

Sec. 1. If the department believes that a taxpayer has improperly reported a listed tax liability, the department may at any time within the prescribed statute of limitations period issue to such taxpayer a formal notice that the department proposes to assess additional tax. The formal notice shall be based on the best information available to the department. Any written advisement which informs the taxpayer of the amount of the proposed assessment for a particular tax period shall constitute a formal notice. A formal notice shall be sent through the United States mail.