If a tax return is filed but the correct amount of tax is not paid in full when due, and no payment arrangements were made, the Department will mail a balance due notice. If the taxpayer fails to pay the balance due, or make arrangements to pay the balance due, the Department will mail a written demand for payment to the taxpayer.
If the Tax Commissioner finds that a return should have been filed and was not, or that the amount shown as due on a tax return is less than the correct amount, the Department must notify the taxpayer of the amount of the deficiency proposed to be assessed. If a taxpayer fails to file a return, the Department will estimate the amount due, based on the best information available to the Department, and must notify the taxpayer of the amount of deficiency proposed to be assessed. When any notice of proposed deficiency determination becomes final, as determined in Reg-36-004.01 of these regulations, the Department will mail a written demand for payment to the taxpayer.
316 Neb. Admin. Code, ch. 36, § 003
Neb. Rev. Stat. § 77-2709. July 3, 2013.