Tax Apportionment

Wyo. Stat. Ann. tit. 2, ch. 10
in effect

Wyo. Stat. Ann. § 2-10-102 Definitions.

(a) As used in W.S. 2-10-101 through 2-10-110: (i) "Estate" means the gross estate of a decedent as determined for the purpose of federal estate tax; (ii) "Fiduciary" means executor, administrator of any description, and trustee; (iii) "Person" means any individual, partnership, association, joint stock company, corporation, government, political subdivision of a government, governmental agency or local governmental agency; (iv) "Person interested in the estate" means any person entitled to receive or who has received from a decedent or by reason of the death of a decedent any property or interest therein included in the decedent's estate. It includes a personal representative, guardian and trustee; (v) "State" means any state, territory or possession of the United States, the District of Columbia and the Commonwealth of Puerto Rico; (vi) "Tax" means the federal estate tax and interest and penalties imposed in addition to the tax; (vii) "This act" means W.S. 2-10-101 through 2-10-110.

Wyo. Stat. Ann. § 2-10-103 Among all persons interested in estate; exception.

Unless the will otherwise provides, the tax shall be apportioned among all persons interested in the estate. The apportionment shall be made in proportion that the value of the interest of each person interested in the estate bears to the total value of the interests of all persons interested in the estate. The values used in determining the tax shall be used for that purpose.

Wyo. Stat. Ann. § 2-10-104 Probate court to determine; discretion allowed; presumption of correctness.

(a) The probate court having jurisdiction over the administration of the estate of a decedent shall determine the apportionment of the tax. If there are no probate proceedings, the probate court of the county wherein the decedent was domiciled at death upon the application of the person required to pay the tax shall determine the apportionment of the tax. (b) If the probate court finds that it is inequitable to apportion interest and penalties in the manner provided in W.S. 2-10-103 because of special circumstances, it may direct apportionment thereof in the manner it finds equitable. (c) If the probate court finds that the assessment of penalties and interest assessed in relation to the tax is due to delay caused by the negligence of the fiduciary, the court may charge the fiduciary with the amount of the assessed penalties and interest. (d) In any suit or judicial proceeding to recover from any person interested in the estate the amount of the tax apportioned to the person in accordance with this act, the determination of the probate court in respect thereto shall be prima facie correct.

Wyo. Stat. Ann. § 2-10-105 Withholding upon distribution of estate; right to recover deficiency; security required if distribution made prior to final apportionment.

(a) The fiduciary or other person in possession of the property of the decedent required to pay the tax may withhold from any property distributable to any person interested in the estate, upon his distribution to him, the amount of tax attributable to his interest. If the property in possession of the fiduciary or other person required to pay the tax and distributable to any person interested in the estate is insufficient to satisfy the proportionate amount of the tax determined to be due from the person, the fiduciary or other person required to pay the tax may recover the deficiency from the person interested in the estate. If the property is not in the possession of the fiduciary or other person required to pay the tax, the fiduciary or the other person required to pay the tax may recover from any person interested in the estate the amount of the tax apportioned to the person in accordance with this act. (b) If property held by the fiduciary is distributed prior to final apportionment of the tax, the distributee shall provide a bond or other security for the apportionment liability in the form and amount prescribed by the fiduciary, with the approval of the probate court having jurisdiction of the administration of the estate.

Wyo. Stat. Ann. § 2-10-106 Allowances for exemptions or deductions and credits.

(a) In making an apportionment, allowances shall be made for any exemptions granted and for any deductions and credits allowed by the law imposing the tax. (b) Any exemption or deduction allowed by reason of the relationship of any person to the decedent or by reason of the purposes of the gift shall inure to the benefit of the person bearing such relationship or receiving the gift; except that when an interest is subject to a prior present interest which is now allowable as a deduction, the tax apportionable against the present interest shall be paid from principal. (c) Any deduction for property previously taxed and any credit for gift taxes or death taxes of a foreign country paid by the decedent or his estate shall inure to the proportionate benefit of all persons liable to apportionment. (d) Any credit for inheritance, succession or estate taxes or taxes in the nature thereof in respect to property or interests includable in the estate shall inure to the benefit of the persons or interests chargeable with the payment thereof to the extent that, or in proportion as the credit reduces the tax. (e) To the extent that property passing to or in trust for a surviving spouse or any charitable, public or similar gift or bequest does not constitute an allowable deduction for purposes of the tax solely by reason of an inheritance tax or other death tax imposed upon and deductible from the property, the property shall not be included in the computation provided for in W.S. 2-10-103 and to that extent no apportionment shall be made against the property. The sentence immediately preceding shall not apply to any case where the result will be to deprive the estate of a deduction otherwise allowable under applicable gift and estate laws, relating to deduction for state death taxes on transfers for public, charitable or religious uses.

Wyo. Stat. Ann. § 2-10-107 Charging temporary interest and remainder.

No interest in income and no estate for years or for life or other temporary interest in any property or fund shall be subject to apportionment as between the temporary interest and the remainder. The tax on the temporary interest and the tax, if any, on the remainder shall be chargeable against the corpus of the property or funds subject to the temporary interest and remainder.

Wyo. Stat. Ann. § 2-10-108 Institution of actions or proceedings to recover tax; generally; apportionment of amounts not collected.

Neither the fiduciary nor other person required to pay the tax shall be under any duty to institute any suit or proceeding to recover from any person interested in the estate the amount of the tax apportioned to the person until the expiration of the three (3) months next following final determination of the tax. A fiduciary or other person required to pay the tax who institutes the suit or proceeding within a reasonable time after the three (3) months period shall not be subject to any liability or surcharge because any portion of the tax apportioned to any person interested in the estate was collectible at a time following the death of the decedent but thereafter became uncollectible. If the fiduciary or other person required to pay the tax cannot collect from any person interested in the estate the amount of the tax apportioned to the person, the amount not recoverable shall be equitably apportioned among the other persons interested in the estate who are subject to apportionment.

Wyo. Stat. Ann. § 2-10-109 Institution of actions or proceedings to recover tax; actions by nonresidents.

(a) Subject to the conditions in subsection (b) of this section a fiduciary acting in another state or a person required to pay the tax resident in another state may institute an action in the courts of this state and may recover a proportionate amount of the federal estate tax, of an estate tax payable to another state or of a death duty due by a decedent's estate to another state from a person interested in the estate who is either resident in this state or who owns property in this state subject to attachment or execution. For the purposes of the action the determination of apportionment by the court having jurisdiction of the administration of the decedent's estate in the other state shall be prima facie correct. (b) The provisions of subsection (a) of this section shall apply only: (i) If such other state affords a remedy substantially similar to that afforded in subsection (a) of this section; (ii) With respect to federal estate tax, if apportionment thereof is authorized by congress.

Wyo. Stat. Ann. § 2-10-110 Interpretation and construction.

This act shall be so interpreted and construed as to effectuate its general purpose to make uniform the laws of those states which enact it.
Source: WY Statutes (Official Site)URL: https://wyoleg.gov/statutes/compress/title02.pdfFetched: 10/4/2026

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