Contesting a Will in Ontario: What Are the Changes to Watch Out For?
Contesting a will in Ontario has long been a complex and emotionally charged process, often involving delicate legal and familial dynamics. Historically, challenges to a will were limited to specific grounds, such as questions of the testator’s mental capacity, undue influence, or failure to provide for dependants. However, recent legislative updates and shifts in legal interpretations have significantly altered the landscape for those seeking to contest or defend a will in the province.
These changes, introduced through the Accelerating Access to Justice Act (Bill 245) and updates to probate laws, aim to address modern realities and streamline estate litigation. As of 2025, key reforms include the validation of non-compliant documents, the permanent adoption of virtual witnessing, and the abolition of automatic will revocation upon marriage. These updates reflect a broader effort to balance testamentary freedom with protections for vulnerable parties.
For individuals considering contesting a will or ensuring their estate plans are secure, understanding these changes is crucial. This article explores the evolving legal framework, recent case law, and practical implications for those navigating Ontario’s estate dispute landscape.
Key Legal Grounds for Contesting a Will
A will in Ontario can be contested on several well-established legal grounds. These include:
- Lack of Testamentary Capacity: This refers to whether the testator was of sound mind when creating the will. If it can be proven that the deceased lacked the mental capacity to understand the nature and consequences of their decisions, the will may be deemed invalid.
- Undue Influence: If it can be shown that the testator was coerced, manipulated, or pressured into making certain decisions, the will may be contested on the grounds of undue influence.
- Improper Execution or Formalities: For a will to be valid, it must meet specific legal requirements, such as being properly witnessed. If these formalities are not followed, the will may be challenged.
- Fraud or Forgery: If there is evidence that the will was forged, altered, or created under fraudulent circumstances, it can be contested.
- Failure to Provide for Dependants: Under Ontario’s Succession Law Reform Act, certain dependants, such as spouses and children, must be adequately provided for. If they are not, they may file a claim against the estate for support.
Recent Legislative and Procedural Changes
The Ontario government has introduced significant updates to estate law through the Accelerating Access to Justice Act (Bill 245) and updated probate laws. These changes aim to modernize the legal framework and address contemporary challenges in estate planning and disputes. Key updates include:
- Validation of Non-Compliant Documents: The Ontario Superior Court of Justice now has the discretion to validate wills that do not strictly adhere to formal legal requirements, as long as they genuinely reflect the deceased’s final intentions. This means that informal documents, such as unsigned drafts or handwritten notes, may be considered valid if the court is satisfied they represent the testator’s true wishes.
- Electronic and Virtual Witnessing: Virtual witnessing of wills and powers of attorney, initially permitted during the COVID-19 pandemic, is now permanently allowed in Ontario. This makes it easier for individuals to complete estate planning when in-person meetings are not feasible.
- Marriage Does Not Revoke Wills: Previously, marriage automatically revoked an existing will in Ontario. Under the new rules, a will remains valid after marriage unless it is explicitly revoked by a new will or other legal documentation.
- Electronic Signatures Excluded from Court Validation: While virtual witnessing is now permitted, documents signed electronically are not eligible for court validation under the new provisions. Only traditionally signed documents that may be technically imperfect can be validated by the court.
Recent Case Law and Judicial Trends
Ontario courts have consistently emphasized the importance of testamentary freedom, reinforcing the principle that individuals have wide discretion in how they distribute their property in their wills. A landmark case, Spence v. BMO Trust Company (2016 ONCA 196), highlights this trend. The Ontario Court of Appeal ruled that courts should not interfere with a testator’s wishes unless there are clear legal grounds, such as undue influence or failure to provide for dependants.
Practical Implications for Contesting a Will
The recent changes and judicial trends have significant practical implications for those considering contesting a will or ensuring their estate plans are secure:
- Higher Threshold for Interference: Contesting a will now requires more than just claims of unfairness. Concrete evidence must be provided to support allegations of incapacity, coercion, or improper execution.
- Expanded Court Powers: The court’s new authority to validate non-traditional documents means that potential contestants must carefully examine not only formal wills but also informal notes, letters, or instructions left by the deceased.
- Permanent Remote Procedures: Virtual witnessing and consultations are now a permanent part of estate planning and litigation, offering greater flexibility in certain situations.
- Dependants’ Claims Still Available: Despite the updates, spouses, children, and other dependants who are not adequately provided for can still file a claim for support under the Succession Law Reform Act.
Limitations, Risks, and Best Practices
The evolving legal landscape underscores the importance of careful planning and adherence to legal standards. Key considerations include:
- Meticulous Documentation: All documents expressing a person’s wishes regarding their estate may now carry greater legal weight, making it essential to ensure clarity and precision.
- Legal Advice: Both those contesting a will and those seeking to protect a will from challenges should consult legal professionals who are well-versed in the latest requirements and jurisprudence.
- Awareness of Procedural Requirements: While some formalities have been relaxed, others, such as the exclusion of electronic signatures from court validation, remain critical. Understanding these boundaries is essential to avoiding disputes.
Conclusion
Contesting a will in Ontario is a complex process that requires a deep understanding of the legal framework, recent legislative updates, and judicial trends. While the grounds for contesting a will—such as lack of testamentary capacity, undue influence, and improper execution—remain well-established, the evolving legal landscape introduces both opportunities and challenges. The recent legislative changes, including the validation of non-compliant documents and the permanent allowance of virtual witnessing, reflect a modernized approach to estate law. However, these updates also raise the bar for individuals seeking to challenge or defend a will, emphasizing the need for meticulous documentation, legal expertise, and awareness of procedural requirements. As the courts continue to prioritize testamentary freedom while protecting vulnerable dependants, it is crucial for all parties involved to stay informed and seek professional guidance to navigate this intricate area of law effectively.
Frequently Asked Questions (FAQs)
What are the main grounds for contesting a will in Ontario?
A will in Ontario can be contested on grounds such as lack of testamentary capacity, undue influence, improper execution, fraud or forgery, and failure to provide for dependants.
Can a will be validated if it doesn’t meet all formal legal requirements?
Yes, under recent legislative changes, the Ontario Superior Court of Justice can validate wills that do not strictly adhere to formal requirements if they genuinely reflect the deceased’s final intentions.
Are electronic signatures allowed for wills in Ontario?
While virtual witnessing of wills is now permanently allowed, electronic signatures are excluded from court validation under the new provisions.
Does marriage automatically revoke a will in Ontario?
No, under the new rules, a will is not automatically revoked by marriage unless explicitly revoked by a new will or legal documentation.
Can dependants still file a claim for support if they are not adequately provided for in a will?
Yes, under the Succession Law Reform Act, dependants such as spouses and children can still file a claim for support if they are not adequately provided for in the will.
What is the significance of the case Spence v. BMO Trust Company?
This landmark case highlights the courts’ emphasis on testamentary freedom, ruling that courts should not interfere with a testator’s wishes unless clear legal grounds, such as undue influence or failure to provide for dependants, are present.
What are the practical implications of recent changes for contesting a will?
Recent changes have raised the threshold for contesting a will, requiring concrete evidence of legal grounds. Additionally, the court’s expanded powers to validate non-traditional documents and the permanent allowance of virtual witnessing introduce new considerations for all parties involved.
Why is legal advice important when contesting or defending a will?
Legal advice is crucial to navigate the complexities of estate law, ensure compliance with procedural requirements, and effectively address the evolving legal landscape.


