To update your will in Ontario without rewriting the entire document, you can use a legal addendum called a codicil. While this document should ideally be signed and witnessed following the same rules as your original will, under Ontario’s “substantial compliance” provisions, the Superior Court of Justice has the power to validate a non-compliant codicil if it clearly reflects your fixed and final intentions.
Life changes rapidly, and knowing how to update your will in Ontario without rewriting it is a practical skill for many families. Over time, your personal circumstances naturally shift. You might need to replace an executor who is no longer available, add a newly born grandchild as a beneficiary, or remove a specific asset you recently sold. Instead of paying for a brand-new estate document and starting from scratch, many residents choose to use a legal tool known as a codicil.
A codicil acts as a formal supplement that modifies, explains, or revokes specific parts of your existing last will and testament. While the concept is simple, the legal execution must be precise. Because estate administration is strictly overseen by the Superior Court of Justice in Ontario, historically, failing to follow the exact rules of the provincial laws would render your updates entirely invalid. However, since January 1, 2022, Ontario law permits a court to validate a technically non-compliant codicil under the “substantial compliance” principle if it clearly represents the testator’s deliberate, fixed, and final intentions. Keeping your documents legally sound is at the centre of good estate planning, so here is a clear, step-by-step guide on how to handle this process safely. 📚
Step-by-Step Process for Creating a Codicil in Ontario
If you decide that an amendment is the best route for your situation, you must follow specific legal formalities. In Ontario, a formal typed codicil requires the exact same level of witnessing as a standard will. A well-drafted amendment acts as a strong defence against potential legal challenges from unhappy relatives later on.
Step 1: Review Your Current Will Carefully
Before making any changes, it is essential to read your original document thoroughly. Identify exactly which clause or paragraph you wish to alter. Being highly precise prevents confusion during the estate administration process. For example, note the exact section number, like “Article 4, Paragraph B,” so your new document can reference it flawlessly. 🔍
Step 2: Draft the Codicil Document
The new document must clearly state that it is a codicil to your existing will, explicitly referencing the exact date your original will was signed. You will need to write out the specific changes in plain, unambiguous language. While you can draft this yourself, most people choose to hire a legal professional from our directory to ensure the phrasing does not accidentally contradict other parts of the estate plan.
Step 3: Gather the Appropriate Witnesses
While a formal typed codicil in Ontario should be signed in the physical presence of two adult witnesses, the court may validate a document that fails to meet this requirement under section 21.1 of the Succession Law Reform Act (SLRA). Under this “substantial compliance” principle, if a party can prove the document is authentic and represents your deliberate, fixed, and final testamentary intentions, the Superior Court of Justice can order it to be fully effective (as seen in cases like Salmon v. Rombough, 2024 ONSC 1186, where a crafted notebook was validated as a codicil). These witnesses must be present in the room at the exact same time you sign the document. Crucially, while a witness should ideally not be a beneficiary named in the codicil (or their spouse), having them witness does not automatically void their inheritance. Under the saving provision in section 12(3) of the SLRA, the court can preserve the gift if it is satisfied that the witness-beneficiary exercised no improper or undue influence on the testator (as demonstrated in the case of Re: O’Neill Estate, 2024 ONSC 2228). 👥
Step 4: Sign and Date the Document
Together with your two witnesses, you must sign and date the bottom of the codicil. If the document happens to be multiple pages long, it is standard legal practice for all three of you to initial the bottom corner of every single page. This simple step provides extra security and proves that no pages were swapped or tampered with before the document reaches the court.
Step 5: Complete an Affidavit of Execution
While not strictly required just to make the codicil valid, completing an Affidavit of Execution is highly recommended in Ontario. This is a sworn written statement by one of your witnesses, signed in front of a notary public or commissioner of oaths, confirming they watched you sign the document. Having this prepared right away saves your executor the massive headache of travelling to track down old witnesses decades later. Today, probate applications in Ontario are filed electronically. In the Toronto region, since October 2025, the Justice Services Online (JSO) platform has been replaced by the new Ontario Courts Public Portal (OCPP) for contested estate matters, while uncontested estates are submitted via email using simplified, modernized forms introduced under O. Reg. 72/25 (effective August 13, 2025) under Rule 74. 📄
Step 6: Store the Documents Safely Together
Keep your newly signed codicil in the exact same secure location as your original will, such as a fireproof safe or a bank deposit box. However, you should never staple, paperclip, or pin the codicil directly to the original will. Marks from removed staples can cause the Superior Court of Justice to suspect that pages are missing, which can seriously delay the entire probate process.
Codicil vs. Writing a New Will
Understanding when to use an amendment versus when to start over completely is a big part of the planning process. Below is a simple comparison to help you understand your options. 📊
| Feature | Codicil | New Will |
|---|---|---|
| Best Used For | Minor changes (e.g., changing an executor, adding one simple gift) | Major life changes (marriage, divorce, significant wealth shifts) |
| Cost Expectations | Generally lower (often $150 to $400) | Generally higher (often $500 to $1,000+) |
| Risk of Confusion | Can be high if you have multiple codicils attached | Lowest risk, as it provides a clean slate and revokes old documents |
How Much Does it Cost?
People constantly look for the most cost-effective way to manage their legal affairs. While prices always vary depending on the city and the specific lawyer you hire, here are the typical expenses you might encounter when updating your will in Ontario: 💰
- Lawyer Drafting Fees: Creating a simple codicil usually costs between $150 and $400. This is far more affordable than drafting a completely new will.
- Notary Fees: If you draft the document yourself, paying a notary to swear the Affidavit of Execution generally costs $30 to $60.
- Storage Fees: Most law firms will store your original documents in their vault for free, but private safety deposit boxes cost around $50 to $100 annually.
- Court Fees: There are absolutely no government fees to create a codicil during your lifetime. Estate Administration Tax (probate fees) is only paid by your estate after you pass away, and the electronic submission of these documents is processed via the Ontario Courts Public Portal (OCPP) in Toronto or through email in other regions.
How Long Does the Process Take?
The timeline for adding a codicil to your estate plan is usually very fast. If you know exactly what changes you want to make, an experienced lawyer can often draft the paperwork within 3 to 5 business days. ⏱
The actual signing appointment in the office takes only about 15 to 30 minutes. If you are handling it yourself at home, the process is as quick as you can write the document and gather two independent witnesses. However, rushing complex legal documents without professional guidance can lead to critical errors, so most families choose to take a few extra days to consult with an expert.
Frequently Asked Questions (FAQ)
Here are some of the most common questions Ontarians ask when looking to update their final wishes without starting over completely. 💬
Can I just cross out words and write changes directly on my original will?
This is highly discouraged. Simply crossing out a name or amount and writing over it can cause the court to invalidate that entire section of your will. Any changes must be properly signed and witnessed to be legally binding in Ontario.
How many codicils am I allowed to have?
There is no strict legal limit on how many codicils you can create. However, most legal professionals suggest that if you are writing your third or fourth codicil, it is much safer to simply draft a brand-new will to prevent confusing the executor and the court.
What is a holograph codicil?
A holograph codicil is an amendment that is written entirely by your own hand and signed by you. Under Ontario law, a completely handwritten document does not require two witnesses. However, handwritten legal documents are heavily scrutinized and often lead to estate disputes, so a typed and witnessed document is generally preferred.
Do I need to notify my executor about the new codicil?
While the law does not legally force you to tell your executor about the update, it is highly recommended. Your executor needs to know exactly where all your original estate documents are stored so they can easily find them when the time comes.
Does a codicil require a new Affidavit of Execution?
Yes. Because the codicil is a separate legal document that requires its own witness signatures, you should get a new Affidavit of Execution specifically for the codicil. The original affidavit attached to your main will only covers the signing of that first document.
Can a codicil be used to completely disinherit someone?
Yes, you can use an amendment to remove a beneficiary. However, completely cutting out a spouse or a dependent child can trigger legal claims against your estate under the Succession Law Reform Act. If you are planning to disinherit a close family member, consulting a lawyer is incredibly important.
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