The law specifies that all taxable personal property must be assessed as of a specific point in time, and that point is precisely at 12:01 a.m. January 1 (regardless of what transpires after that date). Even if closed shortly after the lien date, a business must still file a Business Property Statement and pay taxes for the coming fiscal year on any taxable property they owned on the lien date.
Nevada No specific requirements stated except that a name appearing to be that of a natural person and containing a given name or initials must not be used as a corporate name except with an additional word or words such as "Incorporated", "Limited", "Inc.", "Ltd.", "Company", "Co.", "Corporation", "Corp.", or other word which identifies it as not being a natural person 78.035 Nevada Revised Statutes
On the other hand, if you are not responsible for its tax, then you should declare the equipment in Part III of the Business Property Statement (Equipment belonging to others). Where equipment is declared in Part III of the Business Property Statement, the Assessor will also send a Notice to File to the person reported as the equipment's actual owner.