Wisconsin Statutes Taxation (Ch. 70 to 79) § 72.21. Personal liability

(1) Each personal representative, special administrator, and trustee of a trust in existence and containing property on the date of the decedent's death, is severally liable for the tax imposed by this chapter, with interest, to the extent of the clear market value of all property under the control of that personal representative, special administrator or trustee, the transfer of which is subject to this tax. This liability extends to all taxes due under this chapter on all transfers to a distributee, and is not limited to the value of transfers of property in the control of the personal representative, special administrator or trustee.

(2) A trustee of a trust which comes into existence after the decedent's death and a distributee are liable for the tax imposed by this chapter, with interest, only to the extent of the clear market value of property transferred to the trustee or distributee.