What is it?
A lien is a legal claim that someone who is owed money places on a property until they are paid. If an owner does not pay a contractor, condo fees, taxes or a court judgment, the person owed can register a lien on title. Ontario simply calls all of these “liens”.
A home with a lien cannot be sold cleanly until the debt is paid or the lien is discharged (removed). Because a lien stays with the property, the buyer’s lawyer checks for liens in a title search, and the seller pays them off from the sale money on closing.
A mortgage is also a charge on a home, but “lien” usually means a claim that arises under a law, not a loan the owner chose to take.
What kinds of liens are there?
| Type | Who registers it | Law | Key rules |
|---|---|---|---|
| Construction lien | A contractor, subcontractor or supplier who supplied work or materials and was not paid | Construction Act | Must be registered (preserved) within 60 days or it expires. The owner must keep 10% of the price as a holdback |
| Condominium lien | The condo corporation, for unpaid common expenses | Condominium Act, ss. 85–86 | A certificate of lien must be registered within 3 months of the default, with 10 days’ notice to the owner. Enforceable like a mortgage, and ranks ahead of mortgages if the lender is given written notice |
| Property tax arrears | The city (for example, Toronto) | City tax rules (City of Toronto Act, Municipal Act) | If arrears build up, the city can register a tax arrears certificate and eventually sell the property. Confirm the exact process with your city |
| Execution (writ of execution) | Someone with a court judgment against the owner | Index of executions | Not on the parcel register but in the executions index; the lawyer runs an execution search before closing |
| Statutory liens of government bodies | Government agencies such as the CRA | Their own tax laws | Section 31 of the Mortgages Act also refers to a “statutory lien” in favour of the Crown or a public authority. Details must be confirmed with a lawyer or accountant |
The detailed rules for tax arrears and government liens were not verified from source text for this page. Your lawyer confirms them before closing with a tax certificate and an execution search.
How does a construction lien arise?
Under section 14 of the Construction Act, anyone who supplies services or materials to an improvement (work on the home) has a lien on the owner’s interest in the property for the price of that work. This includes not only the contractor but subcontractors, suppliers and architects. Even if the owner paid the contractor in full, an unpaid subcontractor can still lien the home.
The lien survives only if a claim for lien is registered at the land registry office (section 34). If it is not registered, it expires 60 days after the dates set in section 31 (such as the completion or abandonment of the contract).
That is why the law requires the owner (the payer) to keep 10% of the price as a holdback (section 22): any liens are meant to be dealt with out of that 10%. When there has been recent work, a buyer’s lawyer often asks to hold back some money on closing. This is common practice, not a rule in section 22. See “Holdback” for the details.
How does a condo lien arise?
When a condo owner does not pay the common expenses, the corporation has a lien against the unit under section 85 of the Condominium Act. The lien covers not only the unpaid fees but interest, legal costs and collection costs.
The lien expires unless the corporation registers a certificate of lien within three months of the default (section 85(2)). It must give the owner at least 10 days’ written notice before registering (section 85(4)). A registered lien can be enforced in the same way as a mortgage (section 85(6)), so the corporation can even sell the unit by power of sale.
Under section 86, a condo lien ranks ahead of mortgages, even ones registered before it (with exceptions such as government taxes). This is why lenders take unpaid condo fees seriously. But by the day it registers the certificate of lien, the corporation must give written notice to everyone with a registered claim on the unit (an encumbrancer), such as the mortgage lender (section 86(3)). With no notice, the lien loses its priority over that encumbrancer (section 86(5)). With late notice, it ranks ahead only for the arrears that built up in the three months before the notice and after it, plus interest and costs (section 86(6)). Once everything is paid, the corporation must register a discharge and tell the owner (section 85(7)).
The status certificate you get when buying a condo must state the unit’s common expenses and any default in paying them (section 76(1)(a)). If there are arrears, the seller must clear them before closing.
How do liens show up in a title search?
Claims for lien, certificates of lien and tax arrears certificates appear in the property’s parcel register with a registration number. The buyer’s lawyer sees them in the title search. Judgment writs are not in the parcel register but in the index of executions, so the lawyer runs a separate execution search in the seller’s name.
When the lawyer finds a lien, they send the seller’s lawyer a written requisition before the requisition date in the agreement, asking that it be removed before closing. The seller either pays and registers a discharge, or the lawyers agree (by undertaking) that it will be paid from the sale money and discharged on closing.
How liens are cleared on closing
- The buyer’s lawyer finds any liens through the title search, the execution search and a tax certificate.
- The lawyer sends a written requisition to the seller’s lawyer before the requisition date.
- The seller pays. Usually the seller’s lawyer pays the lien out of the sale money on closing day. The condo corporation (for a condo lien) or the lien claimant (for a construction lien) then registers a discharge.
- If it cannot be resolved in time, the lawyer may propose a holdback on closing or rely on title insurance. For a construction lien there is also a process of paying money into court to have the lien removed from title, which the lawyers handle.
- After closing, the buyer asks their lawyer to confirm that no lien remains on the parcel register.
What to watch out for
- Buying a home with recent work (within the last few months): a construction lien can still be registered after closing if it is within 60 days of the supply. That is why your lawyer asks when the work was finished and often asks to hold back money. Do not rely only on the seller’s word that everyone was paid.
- Buying a condo: read the arrears section of the status certificate. A lien stays with the unit, so a former owner’s unpaid fees remain on your unit if they are not cleared.
- Selling: tell your lawyer about any lien early. A lien that surfaces on closing day can delay or break the deal.
- As an owner: interest and legal costs keep adding to a lien. A condo lien or a mortgage can lead to a power of sale, so deal with it quickly.
- Title insurance covers some liens missed in the search, but check the exceptions in your policy.
Example
The buyer’s lawyer on a Markham house finds an $18,000 claim for lien registered two months earlier. A roofing company had not been paid.
The lawyer sends a requisition before the deadline, and the seller’s lawyer undertakes to pay the roofer $18,000 from the sale money on closing day and to register a discharge. After closing, the parcel register shows no lien, and the buyer receives clear title.
What the law and official sources say
Quotes are copied word for word. The "In plain words" lines are our explanation, not an official translation.
A person who supplies services or materials to an improvement for an owner, contractor or subcontractor, has a lien upon the interest of the owner in the premises improved for the price of those services or materials.In plain wordsAnyone who supplies work or materials to a home improvement has a lien on the owner’s interest for the price, including subcontractors and suppliers who never dealt with the owner.
Source: ontario.ca/laws/statute/90c30 · checked Oct 30, 2026
Each payer upon a contract or subcontract under which a lien may arise shall retain a holdback equal to 10 per cent of the price of the services or materials as they are actually supplied under the contract or subcontract until all liens that may be claimed against the holdback in respect of the supplied services or materials have expired or been satisfied, discharged or otherwise provided for under this Act.In plain wordsWhoever pays for the work must hold back 10% of the price until the lien period ends or any liens are resolved.
Source: ontario.ca/laws/statute/90c30 · checked Oct 30, 2026
the lien of a contractor, … (b) for services or materials supplied to the improvement where there is no certification or declaration of the substantial performance of the contract, or for services or materials supplied to the improvement after the date certified or declared to be the date of substantial performance, expires at the conclusion of the 60-day period next following the occurrence of the earlier of, … (i) the date the contract is completed, and … (ii) the date the contract is abandoned or terminated.In plain wordsA contractor’s lien (where there is no certificate of substantial performance) expires 60 days after the contract is completed, abandoned or terminated, whichever comes first, unless it is registered in time.
Source: ontario.ca/laws/statute/90c30 · checked Oct 30, 2026
If an owner defaults in the obligation to contribute to the common expenses payable for the owner’s unit, the corporation has a lien against the owner’s unit and its appurtenant common interest for the unpaid amount together with all interest owing and all reasonable legal costs and reasonable expenses incurred by the corporation in connection with the collection or attempted collection of the unpaid amount.In plain wordsIf condo fees are not paid, the corporation has a lien on the unit for the unpaid amount plus interest and reasonable legal and collection costs.
Source: ontario.ca/laws/statute/98c19 · checked Oct 30, 2026
The lien expires three months after the default that gave rise to the lien occurred unless the corporation within that time registers a certificate of lien in a form prescribed by the Minister. … The lien may be enforced in the same manner as a mortgage.In plain wordsA condo lien expires unless the corporation registers a certificate of lien within three months of the default. A registered lien can be enforced like a mortgage, including by power of sale.
Source: ontario.ca/laws/statute/98c19 · checked Oct 30, 2026
a lien mentioned in subsection 85 (1) has priority over every registered and unregistered encumbrance even though the encumbrance existed before the lien arose but does not have priority over, (a) a claim of the Crown other than by way of a mortgage; (b) a claim for taxes, charges, rates or assessments levied or recoverable under the Municipal Act, 2001, the City of Toronto Act, 2006, …In plain wordsA condo lien ranks ahead of mortgages, even earlier ones. Claims such as Crown claims and municipal property taxes still rank ahead of the condo lien. And if the corporation gives no written notice to a registered encumbrancer, such as the mortgage lender, the lien loses its priority over that encumbrancer (section 86(3) and (5)).
Source: ontario.ca/laws/statute/98c19 · checked Oct 30, 2026
Common questions
The seller says the contractor was paid in full. Why is my lawyer holding back money?
Even if the owner paid the contractor, an unpaid subcontractor or supplier can still register a lien within 60 days of supplying (Construction Act, ss. 14 and 31). That is why a buyer’s lawyer often asks to hold back some money. If a lien is registered after closing, it can be paid from that money. This is common practice, not a rule in section 22.
Do I have to pay the former owner’s unpaid condo fees?
A lien stays with the unit, so if it is not cleared before closing it remains on your unit. Check the status certificate (section 76) for arrears, and your lawyer will require the seller to pay them before closing.
Can a home with a lien be sold?
Yes, but the lien must be paid from the sale money and a discharge registered on closing. Tell your lawyer early so it is handled in the closing adjustments. A hidden lien can be caught at the requisition date and delay or break the deal.
How are liens found?
The buyer’s lawyer runs a title search (parcel register), an execution search (index of executions) and gets a tax certificate from the city. For a condo, the status certificate shows any arrears. Ontario says you can also search property records yourself on OnLand for a fee, but the records can be complex, so let your lawyer read them.
Can a condo corporation really sell my unit?
Yes. Section 85(6) of the Condominium Act lets a lien be enforced like a mortgage, and section 86 ranks the condo lien ahead of mortgages (if the lender is given written notice). There are steps first (registration within three months, 10 days’ notice), so act as soon as you get a notice.
Guides that use this term
Sources checked
- Construction Act, R.S.O. 1990, c. C.30 (e-Laws) — ss. 14, 22, 31, 34 · checked Oct 30, 2026
- Condominium Act, 1998, S.O. 1998, c. 19 (e-Laws) — ss. 76, 85, 86 · checked Oct 30, 2026
- Mortgages Act, R.S.O. 1990, c. M.40 (e-Laws) — s. 31 (who gets notice) · checked Oct 30, 2026
- City of Toronto, Property Tax Rates & Fees — Sale of Lands for Tax Arrears (modified May 11, 2026) · checked Oct 30, 2026
- Government of Ontario (ServiceOntario), Land Registry — OnLand (updated April 14, 2026) · checked Oct 30, 2026