Indiana Code Title 22. Labor and Safety § 22-4-19-9

Sec. 9. If any employing unit fails to make any payroll report required by this article, the commissioner shall give written notice by mail to the employing unit to make and file the report within ten (10) days from the date of the notice.  If the employing unit, by its proper members, officers, or agents, fails or refuses to make and file the report within such time, the report shall be made by the department from the best information available, and the amount of contribution due shall be computed thereon and the report shall be prima facie correct for the purposes of this article.