Can I Use ChatGPT to Write My Will in Canada?
Generative AI has transformed how we draft emails, summarize documents, and brainstorm ideas. However, when it comes to estate planning, relying on an open-ended chatbot like ChatGPT to draft your Will can be a dangerous mistake.
The fundamental issue isn't just that AI can make mistakes—it’s that generative AI is an open-ended text generator, whereas a proper estate planning tool is a structured decision-making system designed to prevent omissions.
When you use AI, you often don't know what you failed to tell it. Below are 10 key reasons why using AI to write your Will creates a false sense of security and leaves your estate vulnerable.
AI Only Knows What You Tell It—And You Don’t Know What You Don’t Know
If you ask an AI model to write a Will for a married parent of two leaving everything to their spouse and children, it will generate a remarkably convincing document.
What it won't do is ask you the critical follow-up questions like:
What happens if your spouse pre-deceases you?
What if one of your children dies before you?
At what age should minor children receive their inheritance, and who manages the funds until then?
Do you own joint assets, business interests, or assets outside Canada?
Do you have TFSAs, RRSPs, RRIFs, or life insurance policies?
AI is responsive to your prompt, but it does not run a comprehensive intake process. The danger isn't merely getting a wrong answer—it's that AI might never realize there was a question to ask in the first place. Research shows AI’s output depends entirely on supplied information and often fails to identify necessary customizations.
AI Can Confidently Make Things Up (Hallucinations)
Generative AI does not pull from a verified, authoritative legal database and fill in the blanks. Instead, it predicts text based on language patterns.
This means AI can produce polished, official-sounding legal prose that contains fundamental flaws, such as:
Stating incorrect legal rules or inventing execution requirements.
Using legal terminology improperly.
Applying laws from the wrong jurisdiction or relying on outdated legislation.
Assuring you that a provision is valid when it is not.
Because the document is grammatically flawless and uses formal language, these errors are hard to spot. When AI lacks sufficient information, it usually generates plausible-sounding, false information rather than saying, "I don't know."
AI Lacks a Reliable Concept of "Completeness"
A Will is not just a list of answers to questions you happened to think of—it is a legally binding framework that must address a finite set of contingencies.
Structured Will Platforms act as a decision tree: "You answered X, so now we must ask Y."
Generative AI acts as a prompt-responder: "You asked X, so here is an answer to X."
Using ChatGPT to write a Will is like asking it to file your tax return when you don't know what tax deductions exist. It can fill out the boxes you mention, but it cannot reliably identify every box you should have asked about.
The Same Prompt Can Produce Different Wording
AI models are non-deterministic. Two people using the exact same prompt—or even one person running the same prompt twice—will likely receive different wording.
While slight variations don't matter for casual writing, small nuances in legal phrasing can completely alter the meaning of a provision in a Will. You have no reliable way to verify whether the specific wording generated is legally effective for your situation.
AI Can Confuse Jurisdictions
Canadian estate law is strictly provincial. The legal requirements in Ontario differ from those in British Columbia, Alberta, or Nova Scotia.
Because AI models are trained on massive datasets spanning Canada, the US, UK, Australia, and beyond, they frequently mix legal concepts across jurisdictions. AI can mistakenly output a document containing American legal concepts or a blend of provincial rules, rendering key sections incorrect.
AI Doesn’t Recognize What Should Be Left Out of a Will
When asking AI to write a Will, you may be inclined to give it as much information as possible so it can write the "best Will". This might include all your life circumstances and a list of assets. And AI will be very likely to incorporate those things into your Will, simply because it is just following your lead.
For example, someone might provide ChatGPT with all the details of their bank and investment accounts, including their locations, account numbers, and account balances, falsely believing that these things are needed in order to prepare a proper Will.
Without knowing any better, AI would then incorporate these sensitive pieces of information into a draft Will—something that an experienced professional would never do.
AI Creates a "Finished-Looking" Document Without Any Planning
Perhaps the biggest practical danger of AI is how quickly it generates a complete draft. Within five seconds of typing "Write my Will," you receive a document with standard legal headings, numbered clauses, and formal language.
The natural human instinct is to think, "Great, I'm done."
However, writing the words is the easiest part of estate planning. The hard part is identifying necessary decisions, evaluating contingencies, and ensuring the provisions work seamlessly together. AI makes the final step so effortless that it creates a dangerous illusion that the planning phase has been completed.
AI Doesn’t Test Against Future Scenarios
A proper Will must survive real-world changes over time. A structured estate planning system forces you to plan for contingencies:
What if the named executor refuses to act?
What if my spouse dies before me?
What if my spouse and I pass away simultaneously?
What if one of my children predeceases me?
An AI can easily generate a polished document that looks complete on the surface, while failing to account for critical real-world contingencies.
AI Confuses "What You Own" with "What Your Will Controls"
A common misconception is that a Will automatically dictates the distribution of everything you own. In reality, many assets commonly pass outside an estate, including:
Jointly held real estate or bank accounts
Registered accounts (TFSAs, RRSPs, RRIFs)
Life insurance proceeds
AI will unknowingly write a Will that leaves your RRSP to a specific person, even if that account has a conflicting direct beneficiary designation attached to it. A robust system categorizes your assets properly, whereas generic chatbots do not distinguish between different types of assets.
There Are No Built-In "Guardrails" Against Omissions
The ultimate difference between generative AI and a structured Will platform comes down to guardrails and how likely it is for something to be missed.
For example, if you use a structured Will questionnaire from an online Will platform, and you indicate you have minor children, the system requires you to appoint a guardian and set up trust terms. If you use ChatGPT and forget to mention the age of your child, the AI will generate a Will without any mention of guardianship or trusts. The omission triggers no warnings.
The Bottom Line
Generative AI is designed to respond flexibly to input, while estate planning tools are designed to constrain the process and enforce completeness.
When drafting a Will, the primary goal isn't just generating 1,500 words of legal jargon—it's ensuring that every key decision, asset type, provincial rule, and future contingency has been accounted for. For something as critical as your legal legacy, relying on an open-ended chatbot leaves far too much to chance.
Is an AI-generated Will legally valid in Canada?
Possibly — the law does not care who or what typed the words in a Will. What matters is whether the Will maker had capacity, whether the document reflects their intentions, and whether it was signed according to provincial law.
The general rule is that a typed Will must be signed by the Will-maker in the presence of two witnesses who also sign the Will. A draft sitting in a chat window is not a Will; an unsigned or wrongly witnessed printout may not be one either.
What is the best way to write a Will without a lawyer in Canada?
There may be a place for a general purpose chatbot in the DIY estate planning process. But AI should not be relied upon to draft the Will itself. Consider this as a possible process to follow:
Use AI to learn (but not to draft). Asking ChatGPT what an executor does, what 'residue' means, or what questions to consider before starting is a great use of the tool—similar to doing research before meeting with a professional.
Use a structured process to decide and draft. Using a structured online Will platform like Epilogue to create the draft will help ensure that all necessary questions are being asked, and you aren't just relying on what you happen to think of at the time.
Use a lawyer for complexity. Excluding a spouse or child, a blended family, a child with a disability who receives government benefits, or holding significant assets outside Canada all call for legal advice.
Epilogue is an online Will platform that was founded by two former estate lawyers, Arin Klug and Daniel Goldgut. The platform uses plain-language questions that take about 20 minutes to finish, which are meant to cover all the essentials for making a Will. Each Will comes with a set of signing instructions that are specific to the Will-maker's province, and free unlimited updates. A Will costs $139 (or $199 with incapacity planning documents). Documents can be previewed before paying.
ChatGPT is a remarkable research assistant. It is not a Will-making process—and the gap between the two lies in the questions nobody thinks to ask.
FAQ
Is a Will printed from ChatGPT a holograph Will?
No. A holograph Will must generally be written and signed entirely in the Will-maker's own handwriting. A typed or printed document, regardless of how it was produced, normally has to meet the formal witnessing requirements of the Will-maker's province.
What happens if an AI-drafted Will is unclear or signed incorrectly?
It may be invalid or partly ineffective. Some provinces give courts the power to give effect to a Will that does not meet all the strict formalities, but correcting mistakes after-the-fact is slow, costly, and not always possible.
Can ChatGPT help at all when making a Will?
Yes. AI tools like ChatGPT can be useful for explaining estate planning terms, for helping to organize thoughts about who should receive what, and for drafting questions to consider. The risks become significant when someone tries to use AI to turn their ideas into a fully-drafted Will.
Can ChatGPT check a Will someone has already made?
It can flag wording that looks unclear, but it cannot confirm that a Will is valid or complete, or always identify the missing pieces.
How much does an online Will cost compared with using ChatGPT?
ChatGPT can be free, but it supplies no questionnaire, provincial signing instructions, or updates. With Epilogue, a Will is $139, or $199 with incapacity documents, and updates are free.
When should someone see a lawyer instead of using an online Will?
When the estate involves complexities like excluding a spouse or child, a blended family, a child with a disability who receives government benefits, or holding significant assets outside Canada.
Disclaimer: Epilogue is not a law firm and cannot provide any legal advice. This article is for informational purposes only and may not cover all legal considerations. For complex estate planning needs, consult a qualified estate planning professional.
