The Tennessee Affidavit for Waving TN Inheritance Tax Return is a document that is used to waive the requirement to file a Tennessee Inheritance Tax Return. This document must be completed and filed with the Tennessee Department of Revenue (TDR) when the estate of a decedent is valued at less than $1 million. It must be completed and signed by both the executor or administrator of the estate and the heirs of the decedent. There are two types of Tennessee Affidavit for Waving TN Inheritance Tax Return: Form INH-100 and Form INH-102. Form INH-100 is used when the decedent died on or after January 1, 1991, and Form INH-102 is used when the decedent died before January 1, 1991. Both forms require the executor or administrator of the estate and the heirs of the decedent to provide information about the estate and the heirs, and to attest that the estate is valued at less than $1 million. Once completed, the form must be filed with the TDR.