Indiana Code Title 36. Local Government § 36-7-31.5-9

Sec. 9. (a) When the commission adopts an allocation provision, the commission shall, in cooperation with the department and the Indiana office of technology, develop geographic information system (GIS) codes for the properties in the tax area, in accordance with guidelines issued by the department. The commission shall provide the department with any information necessary for the department to use GIS codes and data to collect covered taxes in the tax area. The commission shall update the information provided to the department and the Indiana office of technology before July 1 of each year.

(b) Taxpayers operating in the tax area shall report monthly, in the manner and in the form prescribed by the department, information that the department determines necessary to calculate the salary, wages, bonuses, and other compensation:

(c) A taxpayer operating in the tax area that files a consolidated tax return with the department shall also file monthly an informational return with the department for each business location of the taxpayer within the tax area.

(d) Taxpayers operating in the tax area shall report monthly, in the manner and in the form prescribed by the department, information that the department determines necessary to calculate withholdings required by IC 6-3-4-8.

(e) Taxpayers operating in the tax area shall report monthly, in the manner and in the form prescribed by the department, information that the department determines necessary to calculate state gross retail taxes imposed under IC 6-2.5-2-1.

(f) If a taxpayer fails to report the information required by this section or file an informational return required by this section, the department shall use the best information available in calculating the amount of covered taxes attributable to a taxable event in a tax area or covered taxes from income earned in a tax area or by individuals living in the tax area.