For a will to be valid in Indiana, you must be at least 18 and of sound mind, and the document itself must be in writing, signed by you, and signed by two witnesses who saw you sign. Those are the Indiana will requirements in a sentence, and they come straight from Title 29 of the Indiana Code. Miss any of them and a probate court can throw the will out, which sends your property through the state’s default inheritance rules instead of your own plan.
Who Can Legally Make a Will
Two things have to be true about you personally before a will you sign will hold up: your age and your mental state.
You have to be 18 or older. The one exception is for members of the U.S. armed forces or merchant marine, who can make a valid will while still under 18.1Indiana General Assembly. Indiana Code 29-1-5-1 – Sound Mind; Age; Armed Forces
You also have to be of sound mind. That phrase sounds higher than the bar actually is. Sound mind means you understand what a will does, have a general sense of what you own, and know who your family members and intended beneficiaries are. Perfect memory is not required. Someone with periods of confusion or forgetfulness can still have the mental clarity needed to sign a valid will, as long as they understood what they were doing at the moment they signed.
The Three Requirements for the Document Itself
Every written will in Indiana has to satisfy three formalities. All three, every time.
In Writing
The will has to exist on paper (or in an approved electronic form, discussed below). It can be typed, printed, or handwritten. Indiana does not give handwritten wills any special treatment; a fully handwritten will has to meet the same execution requirements as a typed one.
Signed by You
You sign the will yourself. If you are physically unable to sign, another person can sign for you, but only in your presence and at your direction.2Indiana General Assembly. Indiana Code 29-1-5-3 – Signatures; Counterpart; Video
Signed by Two Witnesses
At least two witnesses must also sign the will, and both must be present when you sign.2Indiana General Assembly. Indiana Code 29-1-5-3 – Signatures; Counterpart; Video Pick witnesses who don’t stand to inherit anything under the will. Using a beneficiary as a witness will not automatically void the entire document, but it can create problems with the gift to that person and give someone grounds for a will contest later. Two neutral adults, not named in the will, is the safe choice.
This is the requirement that most often trips people up. Some states let you skip witnesses if the will is entirely in your own handwriting. Indiana is not one of them. A handwritten will with no witnesses, no matter how clear or heartfelt, is not a valid Indiana will.
Adding a Self-Proving Affidavit
The three requirements above are enough to make a will valid. A self-proving affidavit is optional, but it’s worth adding because it changes what happens in probate.
Without one, the probate court may need your witnesses to appear and confirm they watched you sign. With a self-proving clause, the will is accepted without that testimony. The affidavit is a sworn statement attached to the will in which you acknowledge the will as yours and the witnesses confirm they saw you sign it voluntarily. In Indiana, these statements can be signed under penalties for perjury rather than requiring a notary, which is simpler than the process in many other states.3Indiana General Assembly. Indiana Code 29-1-5-3.1 – Self-Proving Clause
Adding the clause costs nothing extra. It matters most when a witness has moved away or died by the time the will needs to be probated, which happens more often than people expect.
Electronic Wills
Indiana is one of a small number of states that allow purely electronic wills. Under Indiana Code Chapter 29-1-21, you can create and sign a will electronically without ever printing it on paper. The core requirements track the paper rules: an electronic signature by you and attesting witnesses. The mechanics of electronic execution are technical and the statute is relatively new, so working with an attorney who has actually handled electronic wills in Indiana is a practical safeguard.
Oral Wills: A Narrow Exception
Indiana does recognize oral (nuncupative) wills, but only in a very specific emergency. An oral will is valid only if you are in immediate danger of death, whether from illness, injury, or another cause, and you actually die from that peril.4Indiana General Assembly. Indiana Code 29-1-5-4 – Nuncupative Will; Requisites; Limitations Even then, strict limits apply:
- You must declare your wishes in front of at least two disinterested witnesses.
- One of those witnesses must write down your instructions within 30 days.
- The oral will must be submitted for probate within six months of your death.
- An oral will can only dispose of personal property worth up to $1,000. For active-duty military personnel during wartime, that limit rises to $10,000.4Indiana General Assembly. Indiana Code 29-1-5-4 – Nuncupative Will; Requisites; Limitations
An oral will also cannot revoke an existing written will. It can only modify the written will to the extent needed to carry out the spoken instructions. Nothing about the oral-will rule changes the answer for regular estate planning: to distribute real estate, bank accounts, retirement assets, or personal property worth more than $1,000, you need a properly executed written will.
Changing or Revoking a Valid Will
Once you have a will that meets the requirements, you can change it by executing a new written document that follows the same formalities, including two witnesses. A new will can expressly revoke all prior wills, or it can simply be inconsistent enough with the earlier will that the newer one controls.5Indiana General Assembly. Indiana Code 29-1-5-6 – Revocation; Revival
You can also revoke a will by physically destroying or mutilating it with the clear intent to revoke it. Someone else can do this for you, but only in your presence and at your direction.5Indiana General Assembly. Indiana Code 29-1-5-6 – Revocation; Revival Accidental damage, like a house fire, does not count as revocation because the intent is missing. You cannot partially revoke a will by tearing out a page; partial changes require a new signed and witnessed document.
One quirk to be aware of: if you revoke a second will, your first will does not automatically come back to life. Reviving the first will requires either an intent to revive it shown in the way the second was revoked, or a formal re-execution of the first.5Indiana General Assembly. Indiana Code 29-1-5-6 – Revocation; Revival
Divorce also affects a valid will automatically. Once a final divorce decree is issued, all provisions in your will that benefit your former spouse are revoked by operation of law, and the will is read as if your ex died before you. Any appointment of your ex as personal representative or trustee is also revoked. Gifts to your ex’s family members remain intact unless you change the will yourself. The cleaner approach after a divorce is to execute a new will rather than rely on the automatic rules.
What Happens If the Will Fails These Requirements
A will that doesn’t satisfy Indiana’s execution rules can be denied admission to probate. When that happens, your estate passes as if you had left no will at all, under the state’s intestacy statute. The surviving spouse’s share depends on who else survives you: with children, the spouse takes half and the children split the rest; with parents but no children, the spouse takes three-fourths and the parents share one-fourth; with neither, the spouse takes everything.6Indiana General Assembly. Indiana Code 29-1-2-1 – Estate Distribution Friends, charities, and stepchildren who were not legally adopted receive nothing under intestacy, regardless of what your invalid will said.
A separate risk is a will contest. Any interested person can challenge a will within three months after it is admitted to probate. Indiana recognizes four grounds: unsoundness of mind, undue execution (meaning the will wasn’t properly signed or witnessed), duress or fraud, and any other valid objection such as forgery or a more recent will.7Indiana General Assembly. Indiana Code 29-1-7-17 – Contest of Wills; Requisites; Grounds Meeting the execution requirements at the start, and adding a self-proving affidavit signed while you are clearly competent, is the strongest protection against both problems.
A Note on What a Will Doesn’t Cover
Even a perfectly executed Indiana will does not reach every asset. Life insurance policies, retirement accounts like 401(k)s and IRAs, payable-on-death bank accounts, transfer-on-death investment accounts, property held in joint tenancy with rights of survivorship, and assets in a living trust all pass outside the will to whoever is named on the account or deed. If your will leaves your IRA to your daughter but the beneficiary form on the IRA still names your ex-spouse, the ex-spouse gets the IRA. Making a valid will is the first step; keeping beneficiary designations aligned with it is the second.