W. Va. Code § 11-10-5e: Service of notice.

Notwithstanding any other provision of this code, the Tax Commissioner may designate those assessments, notices, statements of account or other Tax Division documents which shall be sent by personal service or United States Postal Service regular mail, or certified mail or registered mail or by any other means at the discretion of the Tax Commissioner, pursuant to any provision of this chapter. Any service of notice addressed by United States Postal Service regular mail is presumed to be accepted upon mailing unless proven otherwise by the taxpayer. Any service of notice by certified mail shall be valid if accepted by the taxpayer or if addressed to and mailed to the taxpayer's usual place of business or usual place of abode or last known address and accepted by any officer, partner, employee, spouse or child of the taxpayer over the age of eighteen. Any notice addressed and mailed in the above manner and accepted by any person shall be presumed to be accepted by such person unless proven otherwise by the taxpayer.