Grounds for Contesting a Will: The Complete Guide to Every Ground the Law Accepts

This article sets out all the grounds for contesting a will recognized under the Succession Law, the burden of proof and the evidence required for each ground, and clarifies which claims are not enough to invalidate a will. It is written as a practical guide ahead of consulting a lawyer, not as a substitute for personal advice.

Grounds for contesting a will are the legal claims recognized under the Succession Law that allow the court to invalidate a will or halt its probate: the testator's lack of legal capacity, undue influence, a defect in the form of the will, forgery, fraud or threat. Each ground requires different proof, and claims such as "unfair distribution" or "exclusion from the will" are not legal grounds at all.

What an objection to a will is and when you can file one at all

An objection to a will is a legal proceeding that prevents a probate order from being granted until the Family Court examines whether the will is valid. Without an objection, the Registrar of Inheritance Affairs would continue handling the application and issue a probate order in the ordinary course.

The person entitled to file an objection is someone with an interest in the estate, usually a legal heir who is not mentioned in the will, or is left a smaller share than expected. Not everyone who feels wronged can file an objection; a real connection to the estate is required. Beyond a legal heir, standing to file an objection may also belong to a beneficiary under an earlier will that was apparently revoked by the later will, to a guardian appointed for a person who was entitled to rely on an earlier distribution, and in exceptional cases also to the Attorney General, where there is a public interest in examining the validity of the will. In other words, the first question examined at an initial meeting is not only "what is your claim", but also "what is your legal standing in this estate".

It is important to know that there is a short time frame for filing the objection, usually 14 days from publication of the application by the Registrar of Inheritance Affairs. You can read more about the timelines, the procedural requirements and the filing steps themselves in the article When you can contest a will and until when.

This article focuses on a different and no less central question: what you can argue at all. Which grounds the law recognizes, how each one is proven in practice, and which claims sound legal but in practice are not enough to invalidate a will.

Grounds for contesting a will: which grounds the Succession Law recognizes

The Succession Law, 5725-1965, is the legal source that defines when a will is void or voidable. The court does not examine the fairness or logic of the will, only whether it meets the conditions set by the law. Several recognized grounds emerge from the law and recur in objection cases:

• The testator's lack of legal capacity at the time of signing
• Undue influence on the testator
• A defect in the form of the will, meaning failure to meet the formal requirements for that type of will
• Forgery of the document or of the signature
• Fraud, deception or threat when the will was made or signed

Each ground has a different legal test, a different type of evidence, and sometimes a different allocation of the burden of proof. The following table is worth reading as a preliminary summary, before going into the full detail of each ground later in the article.

It is important to clarify that several grounds can be argued at the same time in the same objection. For example, you can argue both lack of capacity and undue influence, if the circumstances justify it, and the court examines each ground separately on its merits.

The testator's lack of legal capacity as a ground for objection

The Succession Law requires the testator to be of an age permitting them to make a will, and at the time of signing to have a basic understanding of what they are doing: what a will is, what it contains, and what its outcome will be. Where that understanding is lacking, the will may be considered void.

Minority and legal incompetence

A minor, or a person declared legally incompetent under the Legal Capacity and Guardianship Law, 5722-1962, cannot make a valid will. This is the simplest ground to prove, because it rests on official documents: an ID card or a court order declaring legal incompetence.

A testator who did not understand the content of the will at the time of signing

The more common situation in practice is an adult testator, legally competent on the face of it, but in a condition that raises suspicion that they did not truly understand what they were signing. Typical situations include advanced dementia, active mental illness, or the heavy effect of medication that impairs judgment and memory.

It is important to stress a point that is sometimes misunderstood: old age alone does not raise a suspicion of incapacity. A person aged ninety can be fully competent, and a person aged sixty can suffer from a condition that impairs their capacity. A finding of incapacity is a matter for an expert and for the court, and it is examined according to the specific condition of that testator at that moment, not according to a general assumption about an age group.

The difference between a strong claim and a weak claim is clear when two scenarios are compared. A testator diagnosed with severe dementia a few months before signing, who does not recognize close family members and cannot give a general estimate of their property, presents a strong legal picture for a claim of incapacity. By contrast, a testator who suffers only from mild cognitive decline, who still manages their daily life, recognizes their family members and understands the difference between their assets, will not necessarily be considered lacking capacity, even if their medical record shows an early diagnosis of cognitive decline. The difference is examined on the basis of concrete medical documentation from the relevant period, not on the basis of the general diagnosis alone.

In practice, the evidence gathered for this ground includes:

• Medical records from the period close to the signing of the will, including health fund (kupat cholim) records and diagnoses
• Testimony from people who were in close contact with the testator at that time, such as family members, caregivers or neighbors
• A geriatric or psychiatric expert opinion, sometimes written retroactively on the basis of the existing medical record
• Testimony from the lawyer or the witnesses present at the signing, regarding the testator's conduct at that time

Combining several sources of evidence strengthens the overall picture, because family testimony alone is considered relatively weak evidence, especially when the witness has a financial interest in the outcome.

Undue influence: the most common ground in objections

Undue influence is the ground that appears most frequently in will contest cases. It refers to a situation in which the will, even if signed by a competent testator, does not actually reflect their free will, but is the result of pressure, manipulation, or exploitation of their dependence on another person.

What tests the courts apply

Israeli case law has developed several cumulative tests that the court examines together, not separately:

• The testator's independence: how independent the testator was in their life and decisions, or whether they needed constant help
• The beneficiary's involvement in making the will: whether the person receiving a significant share of the estate was involved in drafting the will, in contacting the lawyer, or was present at the signing
• Dependence between the testator and the recipient: physical, financial or emotional dependence, where the recipient is the one managing the testator's daily life
• The circumstances of signing the will: whether the testator signed in isolation, without independent advice, or with the recipient present in the same room

When a testator's dependence on someone becomes a suspicion of influence

Dependence alone is not improper. An elderly person cared for by a family member, who wishes to leave them part of the estate in appreciation, is doing nothing unlawful. The problem begins when dependence is combined with active involvement in making the will, and with an unexplained, unusual outcome.

A practical example: a family member or caregiver who lives in the testator's home, manages their bank account, arranges the meeting with the lawyer and is present at the signing, and ultimately receives most of the estate under the will at the expense of other heirs who were no less close to the testator. The accumulation of all these factors together raises a real suspicion, even if each one separately sounds reasonable.

Another point in time the courts examine is when the will was signed relative to the development of the relationship between the testator and the recipient. A will signed shortly after the recipient entered the testator's life, or shortly after contact with other heirs was cut off, raises greater suspicion than a will reflecting a consistent attitude over many years, accompanied by financial or emotional support over time and not only in the last period of their life.

The key point is that no single test is enough to prove undue influence. The court examines the full set of circumstances, so preparing the case must also address the full picture and not a single detail.

Evidence that strengthens or weakens a claim of undue influence

Beyond the general tests, several concrete details in practice shift the balance of evidence considerably, in both directions:

• Documented independent legal advice: if the lawyer who drafted the will met with the testator alone, without the beneficiary present, and asked clarifying questions about the identity of the heirs and the extent of the property, that documentation in itself significantly weakens a future claim of undue influence
• A note or memorandum by the lawyer on the testator's considerations, explaining why a particular distribution was chosen, is important evidence that the wishes underlying the will were the testator's own
• Additional witnesses at the advisory meeting, beyond the formal witnesses to the will, strengthen the picture that the testator acted of their own free will
• A consistent account given by the testator to several different people about their intention to distribute their estate in a certain way, over time and not only close to their death

By contrast, the absence of any record of an independent advisory meeting, wording of the will that reflects complex legal drafting not matching the testator's known level of understanding, or witnesses to the will who are only family members or acquaintances of the beneficiary, strengthen the suspicion of undue influence.

Defects in the form of a will: when a technical error invalidates a will

The Succession Law recognizes four types of will, and each carries different formal requirements. Failure to meet these requirements may be a ground for invalidation, but not always automatically.

Types of will and the formal requirements of each type

Typical defects that reach an objection include missing required witnesses, an unclear signature or a signature in the wrong place on the document, a missing date, or a document not written entirely in the testator's handwriting when that is required.

When the court "cures" a formal defect and when it does not

The law allows the court, in certain cases, to disregard a formal defect if it is convinced that the will clearly reflects the testator's true and free wishes. In other words, a small technical defect is not necessarily the end of the matter, if there is enough other evidence attesting to the reliability of the document.

On the other hand, the more a formal defect is joined by further doubt, such as unclear signing circumstances or witnesses who cannot be located, the stronger the formal defect ground becomes. A single formal defect is sometimes a weak claim in itself, but it becomes a much more significant ground when combined with further suspicion about the authenticity of the will or the testator's capacity. As the table above shows, the court's degree of leniency also depends on the type of will itself, and not only on the seriousness of the defect.

Forgery, fraud and threat as grounds for contesting a will

These three grounds share a common denominator: in all of them the document or signature does not reflect the testator's true wishes, but is the result of an improper act by someone else.

• Forgery: A signature that is not truly the testator's, or a document prepared entirely without their knowledge or approval
• Fraud: Misleading the testator about the content of the document they are signing, for example causing them to think they are signing a different document, or deceiving them about the identity of the beneficiaries under the will
• Threat: A will signed out of real fear or coercion, and not out of free choice

These are relatively serious grounds, and therefore the burden of proof for them is also high. The evidence gathered in practice includes:

• An opinion by a handwriting expert, who examines the signature on the will in comparison with other signatures of the testator from the same period
• Examination of other documents signed during the same period, to identify contradictions or suspicious similarities
• Eyewitnesses to the circumstances of the signing, if there are any
• Records of communications, such as text messages, letters or recordings, that attest to pressure, threats or deception directed at the testator during the relevant period

Where the suspicion is outright forgery of the signature, the graphological opinion is sometimes the central evidence in the case, so it is important to approach an expert as early as possible, before the original document reaches a condition that makes examination difficult.

A practical point worth knowing: when the suspicion centers on forgery, the original document must be preserved, and a photocopy or scan is not enough, because a reliable graphological examination usually requires inspection of the original, among other things to examine the writing pressure and the type of ink. When the will was printed and the testator's signature appears only on the last page, as happens with some witnessed wills, the suspicion may focus on whether the pages preceding the signature were later replaced, and not only on whether the signature itself is genuine. Page numbering, signing on every page and the keeping of copies by the lawyer who drafted the will are also details that affect the strength of the evidence when such a suspicion arises.

Claims that will not be considered grounds for objecting to a will

Many of the inquiries that reach law offices practicing inheritance law involve a genuine sense of injustice, but not a recognized legal ground. It is important to make this clear from the outset, to save time, money and false hope.

• Unequal division between children: A testator is free to divide their estate as they wish, even if the division is not equal among the heirs. Freedom of testation is a central principle of the Succession Law, and a division that a particular heir sees as "unfair" does not invalidate the will
• Exclusion of an heir from the will: Even complete exclusion of a child or other relative from the will is not a legal defect. The testator may decide who will receive their estate, and there is no legal obligation to include every family member
• Disagreement with the content of the will: A subjective feeling that the division is unjust, or that the testator "was not himself", does not in itself constitute a legal ground, independently of the grounds detailed above
• The existence of a later will: If the testator signed a new will that revokes an earlier will, this is not a question of objection but a question of which will is valid. The later will should be presented to the Registrar of Inheritance Affairs, rather than conducting objection proceedings against the earlier will
• Prolonged estrangement or a family rift: Even if the objector had no contact with the testator for many years before their death, the estrangement itself is not a ground for invalidating the will, as long as there is no separate ground, such as undue influence, that caused the estrangement itself
• Suspicion alone without supporting evidence: A feeling that something in the will "does not add up", without medical records, concrete testimony or a professional opinion, is not a sufficient basis for filing an objection, even if it justifies an initial review with a lawyer

This distinction is critical: if your claim is only one of the above, without any element of capacity, influence, a formal defect, forgery, fraud or threat, the chance of succeeding in an objection is significantly lower. Every initial inquiry to a law office in this field should first examine whether there is a real ground, and not merely a sense of injustice.

How to prove a ground for objection: the burden of proof and the required evidence

Who bears the burden of proof for each ground

The general rule is that the party seeking to set aside the will, that is, the objector, bears the burden of proof. This clearly applies to grounds such as lack of capacity and forgery, where the objector must present concrete evidence that the document, or the person who signed it, is not what it appears to be.

By contrast, with the ground of undue influence, when certain circumstances exist that raise a real suspicion, such as significant involvement of the beneficiary in drafting the will and a high degree of dependence of the testator on them, the burden may shift to the party seeking to uphold the will, who will be required to show that it is nevertheless valid and reflects free will. This shift of the burden depends on the specific circumstances presented to the court and is not automatic.

For example, if an objector presents evidence that the main beneficiary accompanied the testator to the meeting with the lawyer, sat in the same room while the instructions were given, and was in practice responsible for the testator's bank account in the months preceding the signing, the court may require the party seeking to uphold the will to present counter-evidence, such as a record of an independent consultation held without the beneficiary present, to dispel the suspicion that arose. If the party upholding the will has no such explanation, the lack of counter-evidence may itself work against them.

What evidence to gather before filing

In practice, the body of evidence prepared for presentation usually includes:

• Medical records from the relevant period, especially when the ground is capacity
• Expert opinions: a graphologist to examine handwriting and signature, a geriatrician or psychiatrist to assess cognitive state retroactively
• Eyewitnesses to the signing, including the witnesses who signed the will itself, if any
• Financial records attesting to dependence, such as bank authorizations, money transfers, or management of accounts by someone else
• Correspondence, messages and letters attesting to the circumstances of the signing or to pressure that was applied

An important practical recommendation: gather this evidence, as far as possible, before filing the objection and not only afterward. The short timeline for filing an objection does not always allow all the evidence to be gathered in advance, but it is possible, and advisable, to file the objection on time and complete the evidence later in the proceeding, rather than miss the deadline because of a lengthy search for evidence.

The stages of the proceeding in practice: from filing the objection to judgment

Once an objection is filed, the handling of the application for a probate order moves from the Registrar of Inheritance Affairs to the Family Court. The Registrar does not continue to review the application, but transfers the entire file for judicial decision. The proceeding itself usually moves through the following stages:

1. Filing a detailed statement of objection, setting out the ground or grounds claimed and an initial argument for each
2. Transfer of the file from the Registrar of Inheritance Affairs to the Family Court
3. Filing of a statement of response by the applicant for probate, usually the main beneficiary under the will, addressing each claim raised
4. A preliminary hearing in which the court examines the scope of the dispute and sets a timetable for the rest of the proceeding
5. A document discovery stage, including obtaining a medical file, bank documents or other documents with the court's approval
6. Appointment of a court expert, where relevant, such as a graphologist to examine a signature or a physician to assess capacity retroactively
7. Hearing of testimony and cross-examinations, in one hearing or several, depending on the number of witnesses and the complexity
8. Filing of written summations by the parties, setting out the legal and factual arguments
9. A judgment deciding whether the will is valid in full, void in full, or void in part

At any stage of the proceeding, including before and after the objection is filed, the parties may consider a settlement that removes the need to continue full litigation. The court sometimes encourages the parties to consider such an option, especially when the estate includes several assets that can be redistributed by agreement.

A fuller explanation of the timelines, filing requirements and procedural stages appears in the article The Complete Guide to a Probate Order, and further information on the Registrar's role in the proceeding can be found in the article Who Is the Registrar of Inheritance Affairs.

Common mistakes that undermine the chances of an objection

Several mistakes recur in objection cases, so it is worth being aware of them in advance:

• Filing an objection based only on a sense of injustice: Without a defined legal ground, such as those detailed in this article, the chances of success are low, and the court will have to dismiss the objection for lack of grounds
• Missing the filing deadline: An exhaustive search for evidence before filing, instead of filing on time and completing the evidence afterward, is a common mistake that can wipe out the right to object altogether
• Relying on family testimony alone: When the ground is capacity or undue influence, testimony from interested family members, without medical records or an expert opinion, is considered relatively weak evidence
• Delay in approaching a graphological or medical expert: The more time passes between the initial suspicion and actually approaching an expert, the smaller the chance that the original document will be preserved in a condition that allows a reliable examination, and in the case of a retroactive medical opinion, relevant records may become outdated or hard to locate
• Failing to assess the real chances early: Before investing time, energy and money in a lengthy proceeding, it is worth examining with a lawyer whether a real ground exists, and weighing the cost of the proceeding against the chance of changing the division of the estate. More on the cost structure of an objection can be found in the article What Makes Up the Cost of Filing an Objection

Frequently asked questions

How much time is there to file an objection to a will?

As a rule, you have 14 days from the date the probate order application is published by the Registrar of Inheritance Affairs. In exceptional cases you can ask the court for an extension, but the request must be filed as soon as possible and must explain the reason for the delay.

Who can file an objection to a will?

Anyone with an interest in the estate, usually a legal heir who is not mentioned in the will or is left a smaller share than expected. The objector must have a concrete ground, not just a financial interest.

Can several grounds for objection be raised in the same proceeding?

Yes. You can argue, for example, both a formal defect and undue influence at the same time, and the court examines each ground on its own merits. Combining grounds can strengthen the overall picture presented to the court.

What is the difference between an objection to a probate order and an objection to an inheritance order?

An objection to a probate order applies where there is a will and the objector challenges its validity. An objection to an inheritance order applies where there is no will, or the will does not apply, and the estate is divided according to the Succession Law.

Can you contest a will after a probate order has already been granted?

Once a probate order has been granted, the way to challenge it is narrower and is called an application to revoke the order, not a regular objection. You must show a special reason why the revocation application was not filed within the original objection period.

What do you do when you receive an objection filed against a will you submitted?

The party seeking to probate the will files a statement of response to the objection, addressing every claim raised and presenting evidence that supports the validity of the will. It is advisable to act with the support of a lawyer already at this stage.

Can the lawyer who prepared the will testify in the objection proceeding?

Yes, the lawyer who drafted the will is considered a relevant witness and is sometimes called to testify about the circumstances of the signing, the instructions received from the testator, and the clarifying questions put to the testator when the document was drafted. Orderly records kept at the lawyer's office may be significant to the outcome of the case.

Can you object to a will that was made or signed abroad?

Yes, if the testator had property or residence in Israel, the Israeli court can rule on the validity of the will even if it was signed abroad, subject to an examination of the applicable law and the requirements of the Succession Law that apply to the assets in Israel.

What happens if the objection is dismissed in a judgment?

If the objection is dismissed, the Registrar of Inheritance Affairs continues the proceeding and issues the probate order in accordance with the court's ruling. An appeal against the judgment may be filed with the higher court, subject to the deadlines set by law.

Can you mediate or reach a settlement instead of pursuing the objection to the end?

Yes, in many cases the parties choose mediation or an agreed settlement that removes the need to continue full litigation, particularly when the estate includes several assets that can be redistributed by agreement. This option is relevant at any stage, even after the court proceeding has begun.

The information in this article is general information only and does not constitute legal advice for a specific case. Every case has its own circumstances, so examining the relevant grounds and the strength of the existing evidence requires an individual consultation. The law office of Adv. Shay Zohar in Ramat Gan, managed by Adv. Shay Zohar in collaboration with Adv. Eliyahu Richter, family and inheritance law attorney in Ramat Gan, invites you to a personal meeting at the office to review the specific circumstances and build a well-founded objection. Every case begins with a personal meeting at the office, scheduled in advance by phone or WhatsApp at 054-668-0699.

The information in this article is general and does not constitute legal advice or a substitute for a meeting with a lawyer. Every case is examined according to its own facts.