New York State Law Section 59-G - Exemption of property from state taxation.

 59-g. Exemption  of  property  from  state taxation. The property so
  conveyed and released to the United States shall be  exempted  from  all
  taxes,  assessments  and  other  charges, which may be levied or imposed
  under the authority of this state; but the jurisdiction hereby ceded and
  the exemption from taxation hereby granted shall continue in respect  to
  such  property  so  long  as  the  same shall remain the property of the
  United States and be used for purposes of public defense, and no longer.

Last modified: February 3, 2019