Take one question. Can I hold a damage deposit?

Alberta: yes, up to one month's rent.
British Columbia: yes, up to half a month, plus another half month if there is a pet.
Ontario: no. Not at all.
Quebec: no, and requiring one is prohibited by the Civil Code.

Same country. Same question. Four answers, and two of them make a standard US leasing practice unlawful.

This is not a detail that scales with portfolio size. It is the kind of thing that makes a lease template unusable the moment it crosses a provincial border, and operators expanding into Canada routinely discover it after the fact.

The One That Surprises Everyone: Ontario

Ontario does not permit a damage deposit, a security deposit, a cleaning deposit or a pet deposit.

What it permits is a rent deposit. Section 105 of the Residential Tenancies Act, 2006 provides that the only security deposit a landlord may collect is a rent deposit under section 106. That deposit is capped at the lesser of one month's rent or one rent period, must carry annual interest at the guideline rate, and is applied to the last rental period of the tenancy.

Read what that means operationally.

• You cannot hold money against damage. The deposit is earmarked for the final rental period and cannot be applied to anything else.

• Damage recovery is a claim, not a deduction. If a tenant damages the unit, the route is an application to the Landlord and Tenant Board or the courts, with evidence. There is no fund to draw on and no itemised statement to send.

• Which changes what documentation is for. In a deposit jurisdiction, move-in photographs support a deduction. In Ontario, they support a claim you will have to bring and prove. The same photographs, doing a much heavier job.

A US operator arriving in Ontario with a lease template that includes a damage deposit has a clause it cannot rely on, and a tenant who paid it can apply to the LTB for a refund.

The Strictest: Quebec

Quebec goes further, and the prohibition is broad. Article 1904 of the Civil Code of Québec reads:

The lessor may not exact any instalment in excess of one month's rent; he may not exact payment of rent in advance for more than the first payment period or, if that period exceeds one month, payment of more than one month's rent. Nor may he exact any amount of money other than the rent, in the form of a deposit or otherwise, or demand that payment be made by postdated cheque or any other postdated instrument.

Three prohibitions in one article. No instalment above one month's rent. No advance rent beyond the first payment period. And no money other than rent, in any form, plus no postdated instruments.

No renaming works. Calling it a cleaning deposit, a key deposit or an administration fee does not help. The provision catches any amount of money other than the rent, in the form of a deposit or otherwise.

The practical consequence is the same as Ontario's but more complete: there is no security deposit to hold against future obligations, and every recovery is a claim before the Tribunal administratif du logement.

The Familiar One: Alberta

Alberta looks most like a US jurisdiction, which is why it is the easiest to get wrong in small ways.

A security deposit is permitted, capped at one month's rent under section 43 of the Residential Tenancies Act. The one-month limit applies to the security deposit, rather than creating a separate one-month allowance for each charge treated as security.

Three Alberta-specific requirements worth building into process rather than remembering.

1. The trust account, and the timing:
   Section 44 requires deposits to be placed in an interest-bearing trust account at a bank, treasury branch, credit union or trust company in Alberta, within two banking days of receipt. Two banking days is tight for an operator whose deposits route through a central account first.

2. Interest:
   Section 45 requires annual interest at the prescribed rate, with the parties able to agree in writing to defer payment until the tenancy ends.

3. The return deadlines:
   If there are no deductions, the landlord must return the deposit plus applicable interest within 10 days after the tenant gives up possession. If deductions are being made, the landlord must provide the balance, if any, and a statement of account within 10 days. Where the final amount cannot yet be determined, an estimate can be provided, with the final statement and any remaining balance due within 30 days after the tenancy ends.

The Middle Ground: British Columbia

BC caps the security deposit at half a month's rent under section 19 of the Residential Tenancy Act, with a separate pet damage deposit of up to a further half month where pets are allowed. Together, the security deposit and pet damage deposit can therefore equal one month's rent, but they remain two distinct deposits under the Act.

Four details that matter.

1. One pet damage deposit, regardless of how many animals are approved. Section 20(d) provides that only one pet damage deposit can be required, no matter the number of pets.

2. You cannot also take last month's rent. BC's structure is security plus pet damage, not security plus rent deposit.

3. The return clock is tied to two events, not one. Within 15 days of the later of the end of the tenancy and the landlord receiving the tenant's forwarding address in writing, the landlord must either repay the deposit or make an application for dispute resolution claiming against it. Section 38(6) provides that a landlord who does not comply may not make a claim against the deposit and must pay double the applicable amount.

4. Retention is not simply deduction. Section 38 permits the landlord to retain an amount in specified circumstances, including where the tenant agrees in writing at the end of the tenancy or where the director orders it. Otherwise the route is an application for dispute resolution.

Interest is payable. The Residential Tenancy Regulation sets the rate at 4.5 percentage points below the prime lending rate of the Province's principal banker on 1 January of each year, compounded annually.

The Comparison, Side By Side

Other provinces sit across the same range. Manitoba, Nova Scotia and several others cap at half a month. Saskatchewan permits up to one month. Pet damage deposits are permitted in some provinces and not others. Confirm the specific province rather than reasoning from a neighbouring one.

If You Have Already Collected One

Some readers will have recognised their own lease somewhere above. What to do about it depends on the province, but the sequence is the same.

• Stop collecting it on new tenancies first.
  Whatever the position on existing agreements, there is no argument for continuing to take something the province does not permit. Fix the template before you fix the files.

• Establish what was actually collected, and when.
  Amount, date, what the lease called it, and whether it has already been applied to anything. That record is what any subsequent conversation runs on, whether with counsel, a tenant or a tribunal.

• Do not quietly apply it to something else.
  Recharacterising an unlawful deposit as rent, or applying it to damage, compounds the original problem rather than resolving it.

• Take advice on refunds and exposure.
  Whether an amount must be returned, how far back the issue reaches, and what remedies a tenant has are jurisdiction-specific questions. In Ontario, for example, a tenant who paid an unlawful deposit can apply to the LTB for a refund. Getting advice before a tenant raises it is meaningfully better than getting it after.

• And check the neighbouring obligations while you are there.
  Interest on permitted deposits, trust account requirements and return deadlines are where the same lease template usually produces a second problem.

What This Means For Operations

Four things, and none of them are about the amount.

1. Your lease template is jurisdiction-specific, not national.
   A single Canadian lease template that requires a security or damage deposit cannot be used unchanged across these four provinces. This is the most common expansion error and the easiest to avoid.

2. Your damage recovery model changes by province.
   In Alberta and BC, a deposit can form part of the damage-recovery process, but the conditions for retaining it and the accounting requirements differ. In Ontario and Quebec, there is no equivalent deposit-deduction model. That is a different process, a different evidentiary standard, and a different cost to pursue. Budget for it differently.

3. The return clock runs on different triggers.
   Ten days in Alberta from when possession is given up, with a possible 30-day final accounting. Fifteen in BC, from a later event that depends on the tenant providing a forwarding address. Whoever owns the move-out process has to know which clock applies and what starts it, per property.

4. Interest is a real obligation, not a rounding item.
   Ontario, Alberta and BC all require interest on held funds, on different bases. Across a portfolio this is an accounting requirement, and how the deposit is recorded when it arrives determines whether the interest calculation is possible later.

The Question To Ask Before Entering A Province

Not "how much can I hold." That is the easy question and the one every summary answers.

Ask instead: what happens when a tenant damages a unit here?

In Alberta, eligible deductions can be taken from the security deposit and accounted for through the required statement process. In BC, you can return the deposit, obtain the tenant's written agreement to retain an amount in the circumstances permitted by the Act, or apply for dispute resolution. In Ontario, there is no damage deposit to deduct from, so recovery generally requires an LTB claim. In Quebec, there is no deposit to hold in the first place.

Those are four different operating models, and the deposit cap is only the visible part of the difference.

FAQ

1. Can an Ontario landlord charge a damage deposit?
No. Ontario permits a rent deposit only, capped at the lesser of one month's rent or one rent period, and applied to the last rental period. Damage, cleaning and pet deposits are not permitted.

2. Can a Quebec landlord charge a deposit?
No. Article 1904 prohibits exacting any amount of money other than the rent, in the form of a deposit or otherwise, and prohibits demanding postdated cheques. Rent in advance is limited to the first payment period.

3. How much is a security deposit in Alberta?
Up to one month's rent under section 43. It must be held in an interest-bearing trust account in Alberta within two banking days of receipt.

4. How much is a security deposit in BC?
Up to half a month's rent under section 19, plus a pet damage deposit of up to a further half month where pets are permitted. Only one pet damage deposit may be required regardless of the number of pets.

5. When does a BC deposit have to be returned?
Within 15 days of the later of the end of the tenancy and receipt of the tenant's forwarding address in writing, the landlord must repay it or apply for dispute resolution. Failing to do so can expose the landlord to double the amount.

Sources: Ontario Residential Tenancies Act, 2006 ss. 105–107; Alberta Residential Tenancies Act ss. 43–46 and Alberta government guidance on ending a tenancy; British Columbia Residential Tenancy Act ss. 19, 20, 38 and Residential Tenancy Regulation. Rules vary by province and territory and change. Confirm the current position with the relevant provincial regulator before collecting or withholding any deposit. This article describes general concepts and is not legal advice.