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Special Assessments in Ontario Condos: When and How They Apply

Understand why an Ontario condo board can levy a special assessment, how your share is worked out, and what can happen if it goes unpaid.

Real Estate5 min readTSLBy the Treadstone Law Team · OntarioUpdated November 6, 2026
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Key takeaways
  • A condo board can levy a special assessment through common expense fees without owner approval.
  • Your share uses the same percentage as your common expense share, and owners must pay it.
  • An unpaid special assessment gives the corporation a lien against your unit.

A notice arrives saying your condo corporation is levying a special assessment. It is separate from your monthly fees, it may be large, and it can feel sudden. Knowing why boards use them helps you decide what to ask next.

This article explains the general rules in Ontario: what a special assessment is, the reasons behind one, how your share is calculated, and what to check about timing and payment. Details such as notice periods and instalments depend on the board's decision and your governing documents.

What a special assessment is

Special assessments and chargebacks are ownership costs separate from regular monthly fees. Regular fees pay for maintaining the common elements, reserve fund contributions, and services such as cleaning, building maintenance and condo management.

A special assessment is an extra amount charged to owners, usually to cover a cost the regular budget did not. A chargeback is different: it is a cost billed to one owner, usually because of that owner's act or omission.

Why a board can levy one

A condo board can levy a special assessment through common expense fees without owner approval. Reasons include:

The reserve fund is meant for major repair and replacement of the common elements and assets. Owners normally pay into it through monthly fees, and the board may need to raise contributions to keep it adequate. The specific reason given in your notice is what matters, so read it carefully and ask the board to explain it if it is unclear.

After receiving a reserve fund study, the board must review it within 120 days and propose a funding plan. Boards are urged to be cautious about departing from the study provider's professional advice.

How your share is calculated

Your share of a special assessment uses the same percentage as your common expense share, and owners must pay it. That percentage is set in the declaration and may vary with unit size.

For example, if your share is 5%, you would pay 5% of the amount being assessed. Check your declaration to confirm your own percentage, and ask the board how it arrived at the total.

Notice, timing and payment

How much notice you receive, when payment is due and whether it can be spread over instalments depend on the board's resolution and your building's governing documents. Condos are governed in this order: the Condo Act, then the declaration, then the by-laws, then the rules, and if they conflict the Act takes priority. A lawyer can confirm what applies to your building.

If you cannot pay in one amount, contact the property manager or board in writing early and ask whether a payment arrangement is available. Get any agreement in writing.

An unpaid special assessment gives the corporation a lien against the unit. The lien covers the unpaid amount, interest, and reasonable legal costs and expenses.

How a lien can progress if it goes unpaid

When an owner defaults on common expenses, the corporation automatically has a lien against the unit. The steps that can follow are set out below. How they apply to you depends on your situation, so it is worth confirming with a lawyer.

You can pay everything secured by the lien at any point until the unit is sold, and the corporation must then discharge the lien. A lien tied to an issue within the Condominium Authority Tribunal's jurisdiction, such as nuisance, parking, storage or pets, can be disputed at the Tribunal, while liens tied to issues outside it, such as repairs, must go to the Superior Court of Justice.

What to do next

Frequently asked questions

Does the board need owners to vote on a special assessment?

Generally, no. A board can levy a special assessment through common expense fees without owner approval. Your governing documents may add detail, so it is worth having them reviewed.

Is a special assessment the same as a chargeback?

No. A special assessment is shared by owners according to their percentage, while a chargeback is a cost billed to one owner, usually because of that owner's act or omission.

What happens if I do not pay?

The corporation gets a lien against your unit covering the unpaid amount, interest, and reasonable legal costs and expenses. You can pay everything secured by the lien at any point until the unit is sold, and the corporation must then discharge the lien.

I am buying a unit. Could I be liable for an earlier assessment?

The status certificate may state special assessments levied since the current budget and why, and what it includes or leaves out binds the corporation. In one court decision the CAO describes, a buyer was exempt from their share because the certificate had not clearly disclosed that assessments might be levied.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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