1.  Except as otherwise provided in subsections 2, 3 and 5, each notice of a deficiency determination issued by the Department must be personally served, mailed or, pursuant to subsection 4, sent by electronic mail within 4 years after the last day of the month following the period for which the amount is proposed to be determined or within 4 years after the return is filed, whichever period expires later.

2.  In the case of a failure to make a return or a claim for an additional amount, each notice of determination must be mailed, personally served or, pursuant to subsection 4, sent by electronic mail within 8 years after the last day of the month following the period for which the amount is proposed to be determined.

3.  If, before the expiration of the time prescribed in this section for the service of a notice of determination, the taxpayer has signed a waiver consenting to the service of the notice after that time, the notice may be mailed, personally served or, pursuant to subsection 4, sent by electronic mail at any time before the expiration of the period agreed upon. The period so agreed upon may be extended by subsequent agreements in writing if each agreement is made before the expiration of the period previously agreed upon.

4.  The provision by a person to the Department of an electronic mail address shall be deemed an agreement for the purposes of NRS 719.220 to receive notice pursuant to this section by electronic mail. If served by electronic mail, the notice must be sent to the person at his or her electronic mail address as it appears in the records of the Department and service is complete at the time the electronic mail is sent.

5.  This section does not apply to cases of fraud or the intentional evasion of a provision of chapter 365, 366 or 373 of NRS or NRS 445C.330 or 590.120, or any regulation of the Department adopted pursuant thereto.