Missouri Revised Statutes Title XXXI. Trusts and Estates of Decedents and Persons Under Disability § 469.020. Disclaimer, how and when made--delivery--right to disclaim

1. A disclaimer is made by a writing showing an unconditional refusal to accept a transfer, or a portion thereof, signed by the disclaimant, or representative, and delivered on or before nine months after the transfer, or by any later time provided in the particular case or pursuant to other provisions of this chapter, and before any acceptance of the disclaimed interest. Delivery of a disclaimer may be accomplished by delivery to the transferor, the transferor's personal representative or other legal representative, or the holder of the legal title to the property to which the interest related. A disclaimer involving an estate or property within the jurisdiction of the probate division of a circuit court may be filed in that division.

2. The right to disclaim exists notwithstanding any intention to the contrary expressed by the transferor and notwithstanding any limitation on the disclaimant such as a spendthrift provision or similar restriction.