The Essentials of a Valid Will in Indiana: A Step-by-Step Guide

Navigate Indiana's legal landscape for wills, from who can make one to the crucial execution formalities required by state law

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Ensuring your last wishes are legally honored in Indiana requires understanding and adhering to specific statutory requirements for creating a valid will. A will is a crucial document that directs the distribution of your assets and can appoint guardians for minor children. Failure to meet these legal standards can result in your will being deemed invalid, leading to your estate being distributed according to state intestacy laws, which may not align with your desires. This article outlines the fundamental legal requirements for a valid will in the Hoosier State.

Testamentary Capacity: The "Who" and "Why"

To create a valid will in Indiana, the person making the will, known as the testator, must possess testamentary capacity. This involves two primary components:

  • Age: The testator must be at least 18 years old. There are limited exceptions for individuals younger than 18 if they are members of the armed forces. (Indiana Code § 29-1-5-1)

  • Sound Mind: The testator must be of "sound mind" at the time the will is executed. Legally, this means the testator must understand, in a general way:

  • The nature and extent of their property.

  • The persons who are the natural objects of their bounty (i.e., their family members or those they would typically wish to benefit).

  • The act of making a will and its effect in disposing of their property.

  • That they are making a plan for the disposition of their property upon their death.

An individual may still be considered of sound mind even if they have some degree of physical or mental impairment, as long as they meet these understanding requirements at the moment of signing the will.

Formalities of Execution: The "How"

Indiana law dictates specific formalities for how a will must be written and executed to be legally binding:

  • In Writing: The will must be in writing. Indiana generally does not recognize holographic wills (wills entirely in the testator's handwriting) unless they also meet the standard witnessing requirements. Oral wills, known as nuncupative wills, are only permitted in extremely limited circumstances, such as by a person in imminent peril of death, and can only dispose of a small amount of personal property. (Indiana Code § 29-1-5-1, § 29-1-5-4)

  • Testator's Signature: The will must be signed by the testator. If the testator is physically unable to sign, another person may sign the testator's name on their behalf, but this must be done at the testator's direction and in their presence. (Indiana Code § 29-1-5-3)

  • Witnesses: The will must be signed by at least two competent witnesses. These witnesses must:

  • Be at least 18 years old.

  • Be "disinterested," meaning they (or their spouses) generally should not be beneficiaries in the will. If an interested witness signs the will, any gift to that witness (or their spouse) may be void, unless there are at least two other disinterested witnesses or the interested witness would have inherited a share if the testator had died intestate (without a will). (Indiana Code § 29-1-5-2)

  • Sign the will in the presence of the testator and in the presence of each other. The testator must also signify to the witnesses that the instrument is their will. (Indiana Code § 29-1-5-3)

While not a requirement for the validity of the will itself, Indiana law allows for a will to be made "self-proving." This involves the testator and witnesses signing an affidavit before a notary public or another officer authorized to administer oaths. A self-proving affidavit can simplify the probate process by eliminating the need for witness testimony in court to prove the will's authenticity. (Indiana Code § 29-1-5-3.1)

Importance of Adherence

Strict adherence to these legal requirements is paramount. Any deviation can provide grounds for the will to be challenged and potentially invalidated by a court. While it is possible to create a will without legal assistance, consulting with an experienced Indiana estate planning attorney is highly recommended to ensure your will is valid, accurately reflects your wishes, and minimizes potential complications for your loved ones after your passing. Recent Indiana law also addresses electronic wills, which have their own specific execution requirements under Indiana Code § 29-1-21.


Information published to or by The Industry Leader will never constitute legal, financial or business advice of any kind, nor should it ever be misconstrued or relied on as such. For individualized support for yourself or your business, we strongly encourage you to seek appropriate counsel.


Graham Settleman

Graham illustrates legal concepts with a focus on educational, personal and business matters. Passionate about human connection, communication and understanding, his work reflects a curiosity for simplifying complex concepts.

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