Holographic will

The law of wills and trusts
Part of the common law series
Inheritance
Intestacy  · Testator  · Probate
Power of appointment
Simultaneous death  · Slayer rule
Disclaimer of interest
Types of will
Holographic will  · Will contract
Living will
Joint wills and mutual wills
Parts of a will
Codicil  · Attestation clause
Incorporation by reference
Residuary clause
Problems of property disposition
Lapse and anti-lapse
Ademption  · Abatement
Acts of independent significance
Elective share  · Pretermitted heir
Contesting a will
Testamentary capacity  · Undue influence
Types of Trusts
Express trust  · Asset-protection trust
Protective trust  · Spendthrift trust
Charitable trust  · Honorary trust
Resulting trust  · Constructive trust
Special Needs trust
Doctrines governing trusts
Pour-over will  · Cy pres doctrine
Other areas of the common law
Contract law  · Tort law  · Property law
Criminal law  · Evidence

A holographic will is a will and testament that has been entirely handwritten and signed by the testator. Normally, a will must be signed by witnesses attesting to the validity of the testator's signature and intent, but in many jurisdictions, unwitnessed holographic wills are treated as valid as witnessed wills and need only to meet minimal requirements in order to be probated:

• There must be evidence that the testator actually created the will, which can be proved through the use of witnesses, handwriting experts, or other methods.
• The testator must have had the intellectual capacity to write the will, although there is a presumption that a testator had such capacity unless there is evidence to the contrary.
• The testator must be expressing a wish to direct the distribution of his estate to beneficiaries.

Holographic wills are common and are often created in emergency situations, such as when the testator is alone, trapped and near death. Jurisdictions that do not generally recognize unwitnessed holographic wills will accordingly grant exceptions to members of the armed services who are involved in armed conflicts and sailors at sea, though in both cases, the validity of the holographic will expires at a certain time after it is drafted.

Holographic wills often show that the requirements for making a valid will are minimal. The Guinness Book of World Records lists the shortest will in the world as "All to wife", which clearly meets the minimum requirements. In the Canadian province of Saskatchewan, there was a famous case where a farmer trapped under his own tractor scratched a will into the fender. The fender was probated and is currently on display at the law library at the University of Saskatchewan.

In the United States, unwitnessed holographic wills are valid in around 30 out of the 50 states. Jurisdictions that do not themselves recognize such holographic wills may nonetheless accept them under a "foreign wills act" if it was drafted in another jurisdiction in which it would be valid.