Tasmanian Numbered Acts7. Minimum age for making a will
(1) A will made by a minor is not valid.
(2) Despite subsection (1)
(a) a minor may make a will in contemplation of marriage (and may alter or revoke such a will) but the will is of no effect if the marriage contemplated does not take place; and
(b) a minor who is married may make, alter or revoke a will; and
(c) a minor who has been married may revoke the whole or any part of a will made while the minor was married or in contemplation of that marriage.