Duhaime's Law Dictionary

Testamentary Capacity Definition:

The legal ability to sign a will.

Related Terms: Will, Competency, Capacity

Testamentary capacity, like the capacity to contract, is usually presumed such that it would be up to someone seeking to contest a will on that basis, to prove otherwise based on a balance of probabilities.

In Banks v Goodfellow, Justice Cockburn wrote:

"In deciding upon the capacity of the testator to make his will, it is the soundness of the mind, and not the particular state of the bodily health, that is to be attended to; the latter may be in a state of extreme imbecility, and yet he may possess sufficient understanding to direct how his property shall be disposed of; his capacity may be perfect to dispose of this property by will, and yet very inadequate to the management of other business, as, for instance, to make contracts for the purchase or sale of property. For, most men, at different periods of their lives, have meditated upon the subject of the disposition of their property by will, and when called upon to have their intentions committed to writing, they find much less difficulty in declaring their intentions than they could in comprehending in business in some measure new."

crazy old man

However, proving a lack of the legal ability to issue a valid will is not always difficult. For example, the testator may not of been of the age of majority (i.e. a minor) when the will was signed and in a jurisdiction that sets age limits on who can make a will (eg. §7 of the Wills Act, RSBC 1996, Chapter 489).

Other hindrances to testamentary capacity include mental disorder if such mental disorder is such that the purported testator was, at the time of signing the will, unable to understand what he or she was doing; a will was or what it does.

Age or eccentricity (including face-pulling!) do not, without more, cause any presumption of mental disability.

Conversely, certain debilitating physical disabilities can extinguish, temporarily or permanently, testamentary capacity (eg. coma).

The presence of suspicious circumstances may also give rise to questions as to testamentary capacity.

Furthermore, most of the impediments to capacity known to contract law apply as well to wills and affect testamentary capacity, such as undue influence or duress.

An older yet concise comment on the law of testamentary capacity is that of the 1914 edition of Halsbury's Laws of England (this excerpt of which we have reordered only slightly):

"It is necessary for the validity of a will that the testator should be of sound mind, memory and understanding, words which time out of mind have been held to means sound and disposing mind, and to import sufficient capacity to deal with and appreciate the various dispositions of property to which the testator is about to affix his (or her) signature; but a will is not revoked by the subsequent insanity of the testator.....

"Generally speaking, the law presumes sanity, and no evidence is required to prove the testator sanity if not impeached...."

"Eccentricity alone does not prevent a man from disposing of his property by will."


Categories & Topics:

Always looking up definitions? Save time with our search provider (modern browsers only)

If you find an error or omission in Duhaime's Law Dictionary, or if you have suggestion for a legal term, we'd love to hear from you!