7-2-12. Taxpayer returns; payment of tax.
A. Every resident of this state and every individual deriving income from any business transaction, property or employment within this state and not exempt from tax under the Income Tax Act who is required by the laws of the United States to file a federal income tax return shall file a complete tax return with the department in form and content as prescribed by the secretary. Except as provided in Subsection B of this section, the return required and the tax imposed on individuals under the Income Tax Act are due and payment is required on or before the fifteenth day of the fourth month following the end of the taxable year.
B. When the department approves electronic media for use by a taxpayer whose taxable year is a calendar year, the taxpayer who uses electronic media for both filing and payment must submit the required return and the tax imposed on individuals under the Income Tax Act on or before the thirtieth day of the fourth month following the end of the taxable year.