Mo. Rev. Stat. § 137.350: Assessment of estates — duty of guardian.

It shall be the duty of the executor or administrator of the estate of any deceased person to deliver to the assessor such certified statement of all the property of such decedent as provided in sections 137.325 to 137.420. No such executor or administrator shall be eligible for discharge until all taxes levied and assessed under the provisions of sections 137.325 to 137.420 shall first have been paid.