Revoking a Power of Attorney for Property in Ontario: A Step-by-Step Guide

Life changes. The person you trusted to manage your finances five years ago may no longer be the right choice — perhaps circumstances have shifted, a relationship has broken down, or you simply want a fresh start with someone new. Whatever the reason, revoking a Continuing Power of Attorney for Property is entirely your right in Ontario, provided you still have the mental capacity to do so.

The catch is that revoking a POA is not as simple as tossing the original document in the recycling bin. A series of formal steps are required, and skipping any of them can leave gaps that expose you to real financial risk. This guide walks through the process clearly, so you know exactly what needs to happen — and in what order.

First: Do You Have the Capacity to Revoke?

The legal threshold for revoking a Continuing Power of Attorney for Property in Ontario is the same as the threshold for granting one in the first place. You must understand the nature and extent of your property, the obligation you have toward dependants, the nature of the attorney relationship you are ending, and the consequences of revoking the document.

This matters because people often think about revoking a POA precisely when their health is in question. If capacity is uncertain — for example, if a dementia diagnosis is recent or cognitive concerns have been raised — a lawyer or a formal capacity assessor should be involved before you proceed. Acting without confirming capacity can leave the revocation vulnerable to challenge later.

Step 1 — Prepare a Written Revocation

Ontario law requires the revocation to be in writing. There is no prescribed government form for revoking a power of attorney for property, but the document must clearly state:

• Your full legal name
• The date of the original POA you are revoking
• The name of the attorney whose authority you are ending
• A clear declaration that you revoke the document

The revocation must be signed in front of two witnesses who meet the same requirements as witnesses to a will (they cannot be the attorney, the attorney's spouse, your own spouse or partner, or anyone under 18). Dating the document is essential — it establishes the exact moment the revocation takes effect.

Many people also have a lawyer prepare and witness the revocation. This adds credibility if the document is ever questioned by a financial institution or in court.

Step 2 — Notify the Attorney in Writing

Signing the revocation document is not enough on its own. Under Ontario law, an attorney who has not been notified of a revocation may continue to act lawfully — so notifying your current attorney in writing is not optional. Send the notice by a method that creates a record: registered mail, email with read receipt, or personal delivery with a witness.

Alongside the notice, ask the attorney to return any original copies of the POA they hold. You want those documents back so they cannot be inadvertently relied upon later.

Step 3 — Retrieve Originals from Financial Institutions and Other Third Parties

If your attorney used the POA to give financial institutions a copy — banks, investment firms, mortgage lenders — those institutions may have the document on file and could act on it unless told otherwise. Contact each institution directly, confirm they have a copy on file, and provide them with a copy of your revocation notice.

What if a bank acts on the old POA after receiving notice of revocation?

If a financial institution acts on a revoked POA after you have given proper written notice, liability can follow. Ontario's legislation governing powers of attorney provides protections for third parties acting in good faith without notice of a revocation — but that protection disappears once they have been properly notified. If a bank processes a transaction after receiving your notice, the responsibility for any resulting harm shifts. Document everything: keep copies of your notices, the dates you sent them, and any confirmations of receipt.

Step 4 — Timing a New POA: Watch for the Gap Period

Many people revoke one POA because they want to appoint someone else. This is perfectly sensible — but the order and timing of events matters.

Ideally, you should have the new POA signed and ready before you formally revoke the old one. This minimizes — or eliminates — any period during which no attorney has authority over your property. Even a short gap can cause problems: if you become incapacitated in that window, no one will have legal authority to act on your behalf, and an application to the Ontario Superior Court of Justice may be necessary to appoint a guardian, which is expensive and time-consuming.

If signing a new POA before revoking the old one creates any risk of confusion (for instance, if you are worried the current attorney could act in the window before they are notified), work with a lawyer to coordinate the timing carefully. The revocation notice to the attorney, delivery of the new POA to the new attorney, and notifications to financial institutions can be sequenced tightly to close the gap.

Automatic Termination Events

Separately from revocation, Ontario law recognizes certain events that automatically end a Continuing Power of Attorney for Property:

• Death of the grantor — the POA ends immediately; estate authority passes to the estate trustee named in the will (or, if there is no will, to the person appointed by the court).
• Death of a sole attorney — if you named only one attorney and that person dies, the POA terminates unless you named a substitute attorney.
• Bankruptcy of the attorney — an attorney who becomes bankrupt loses the authority to manage your property.

These events are not revocations — no written document is required — but they should prompt the grantor (or, in the case of death, the estate trustee) to notify institutions promptly so that no one continues to rely on the document by mistake.

Frequently asked questions