Banking Power of Attorney: Authority, Limits and Oversight
Limit the power of attorney to expressly authorized transactions and document the grantor’s capacity at signing.
In this article
A banking power of attorney allows you to manage the finances of a relative who can no longer get around. Its strength rests on three points that families too often improvise. First the drafting: the document lists the expressly authorized operations (paying bills, depositing income, managing the chequing account) and deliberately excludes the rest, starting with investments and beneficiary changes. Draft a narrow power of attorney and widen it as needed. Next, validity: the grantor's capacity is established at signing, often through a private conversation with the advisor. The document is not a protection mandate: incapacity belongs to another regime, prepared separately. Finally, oversight: every operation leaves a trace, with annotated statements and receipts kept, accessible to relatives. That transparency protects the attorney as much as the grantor. The power ends at revocation or death, and the estate then takes over. This article explains the drafting, the signing and the keeping of the file.
List the operations genuinely authorized
A banking power of attorney is not a general power. It lists what the attorney may do, and the institution sticks strictly to that list. Paying bills, withdrawing funds, transferring between the grantor's accounts, viewing statements: each of these is authorized or refused separately. Pay particular attention to the commonly excluded operations, because they are the ones that block at the worst moment: closing an account, cashing an investment, changing a beneficiary, opening a new product. Fill in the form with the concrete situations of the coming years in mind, not only the current month's transactions. Review it every few years as well, to catch gaps that only appear over time.
Sign while capacity is beyond doubt
A power of attorney signed by a person whose capacity is already questionable risks being challenged, by the institution as much as by the family. The right time to sign is therefore when the question does not yet arise. It is counterintuitive: you prepare in good health the tool that will serve in poor health. Waiting for the diagnosis complicates everything. A homologated protection mandate can take over if capacity is lost, but bringing it into force requires a longer procedure, at the very moment when the bills keep arriving. Signing earlier avoids that delay, often several months.
Keep separate accounts from day one
The attorney acts with someone else's money and will have to account for it, sometimes years later, before other heirs or a court. Their protection lies in documentation: statements kept, paid invoices filed, a note for every unusual transaction, and above all no mixing of their funds with the grantor's. Paying one of the grantor's expenses from your own account and reimbursing yourself afterward, even in good faith, creates exactly the mix that makes accounting impossible. A dedicated account and dated records are enough to put suspicion aside, and they cost nothing to maintain from the start.
Know when the power ends
A power of attorney ends when the grantor revokes it, and automatically at death. From that moment only the liquidator may act. A transaction made by the attorney after the death, even to pay for a funeral or a legitimate bill, exposes them personally. Notify the institution immediately. A verbal revocation is not enough: put it in writing, deliver it to the institution and check that access has actually been removed. A power forgotten in a bank file for years is a risk, not a harmless relic, and removing it takes only one visit.
Quebec scenario
When her 86-year-old mother can no longer travel for her banking, a manager in Windsor accepts the role of attorney. The branch turns what seemed a formality into a rigorous framework, and that is a good thing. First the document: the banking power of attorney lists the expressly authorized transactions, which are paying bills, depositing income and managing the chequing account. Investments and any beneficiary change are deliberately excluded. Next, capacity: the signing happens at the branch, and the advisor meets alone with the mother to confirm she understands the scope of the act, a condition of the mandate's validity. The document also states that this is not a protection mandate, which belongs to a different regime should incapacity arise. Last, oversight, which the daughter imposes on herself as much as it is imposed on her: every transaction leaves a trace, with annotated statements and receipts kept in a binder her two brothers may consult on request. That transparency protects the attorney as much as the grantor. The end of the power is noted in the file: the mother can revoke it at any time, and it ends automatically at death, when the estate takes over under different rules. Three years later, the complete binder impresses the liquidator: every dollar is traced and no question is left pending.
Checklist
- Draft the power of attorney narrow first
- List the expressly authorized operations
- Exclude investments and beneficiaries deliberately
- Sign at the branch with capacity established
- Distinguish the power from a protection mandate
- Annotate the statements for every operation
- Keep the documents in an accessible binder
- Open the file to relatives on request
- Plan for the end at death and the estate handover
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