The Multiple Listing Service is the main marketplace for Canadian real estate. Here is how it works, and its limits, whether you are buying, selling or investing.
How MLS works
The structure
| Level | Organization | Role |
|---|---|---|
| National | CREA (Canadian Real Estate Association) | Operates realtor.ca, owns MLS® trademark, sets national standards |
| Regional | Local real estate boards (TRREB, Greater Vancouver REALTORS, CREB, etc.) | Operate local MLS systems, set local rules |
| Brokerage | Individual brokerages (Re/Max, Royal LePage, etc.) | Access MLS through board membership |
| Agent | Individual licensed agents | Input listings, search for clients, negotiate deals |
The listing process
- Seller signs a listing agreement with an agent
- Agent enters the property details into the local MLS system
- Listing is visible to all member agents within the board (and often shared across boards)
- Listing is syndicated to realtor.ca (public view)
- Buyer agents search MLS on behalf of their clients
- Showings, offers, and negotiations happen through the agents
- When the property sells, the sale data is recorded in MLS
Major real estate boards in Canada
| Board | Region | Abbreviation |
|---|---|---|
| Toronto Regional Real Estate Board | GTA and surrounding areas | TRREB |
| Greater Vancouver REALTORS (formerly the Real Estate Board of Greater Vancouver) | Metro Vancouver | GVR (formerly REBGV) |
| Calgary Real Estate Board | Calgary and area | CREB |
| Ottawa Real Estate Board | Ottawa and area | OREB |
| Quebec Professional Association of Real Estate Brokers (formerly the Greater Montreal Real Estate Board) | Quebec (Centris) | QPAREB (APCIQ) |
| Realtors Association of Edmonton | Edmonton and area | RAE |
| Winnipeg Regional Real Estate Board | Winnipeg and area | WRREB |
| Nova Scotia Association of REALTORS | Nova Scotia | NSAR |
Types of MLS listings
| Listing Type | Description | Who Sees It |
|---|---|---|
| MLS listing | Listed on MLS, marketed broadly | All agents and public (via realtor.ca) |
| Mere posting / flat-fee | Listed on MLS by flat-fee service, owner handles sale | All agents and public — but with limited agent involvement |
| Exclusive (off-MLS) or pocket listing | Not on MLS; marketed privately by the listing agent | Only the listing agent’s network |
| Assignment sale | Pre-construction unit being sold before closing | Listed on MLS or marketed privately |
What MLS data includes
Public view (realtor.ca)
| Data | Available? |
|---|---|
| Listing price | ✅ |
| Property photos | ✅ |
| Property description | ✅ |
| Number of bedrooms / bathrooms | ✅ |
| Square footage (if provided) | ✅ |
| Property type and style | ✅ |
| Listing date | ✅ |
| Property tax amount | ✅ |
| DOM (Days on Market) | ✅ |
| Agent contact info | ✅ |
Agent-only view (full MLS)
| Data | Available? |
|---|---|
| Everything above | ✅ |
| Sold prices and sold dates | ✅ (most boards) |
| Agent remarks (private notes) | ✅ |
| Showing instructions | ✅ |
| Commission offered to buyer’s agent | ✅ |
| Property history (relist, price changes) | ✅ |
| CDOM (Cumulative Days on Market) | ✅ |
| Room dimensions (detailed) | ✅ |
| Legal description and PIN | ✅ |
Listing without an agent (flat-fee MLS)
How flat-fee MLS works
- You pay an upfront fee to a flat-fee service ($500–$2,000)
- They post your listing on MLS with your photos and description
- Your listing appears on realtor.ca and agent searches
- You handle all showings, open houses, and inquiries
- You negotiate directly with buyer agents or buyers
- Most sellers still offer a commission to the buyer’s agent, at a rate set in the listing agreement
- You hire your own real estate lawyer for the paperwork
Flat-fee MLS pros and cons
| Pros | Cons |
|---|---|
| Save listing agent commission (2%–2.5%) | You handle all showings and inquiries |
| Full MLS exposure | No agent guidance on pricing, staging, or marketing |
| Control over the sale process | May get fewer showings (some agents avoid flat-fee listings) |
| Cost savings of $10,000–$25,000+ | No one negotiating on your behalf |
| Suits experienced sellers | Risk of underpricing or overpricing |
Cost comparison
How the listing commission compares between a full-service agent, a discount or 1% agent and a flat-fee MLS listing is covered in 1% listing agents.
Data reciprocity: how boards share listings
Most Canadian real estate boards share data through data distribution agreements:
| Feature | Details |
|---|---|
| DDF (Data Distribution Facility) | CREA’s system that syndicates listings to realtor.ca and third-party websites |
| IDX (Internet Data Exchange) | Allows agents to display other agents’ listings on their own websites |
| Cross-board sharing | Some boards share listings — e.g., TRREB listings may appear in kitchener boards |
| National coverage | Not all boards participate in full data sharing — some regional gaps exist |
Sold data access by province
| Province | Public Access to Sold Prices | How to Access |
|---|---|---|
| Ontario | Yes (through Land Registry) | Teranet / OnLand portal (fee per search) or through your agent |
| British Columbia | Partial (BC Assessment shows assessed values; agents have sold data) | BC Assessment website or through agent |
| Alberta | Through agents | Ask your REALTOR® or search SPIN2 (title searches) |
| Quebec | Yes (through JLR / Registre foncier) | JLR portal or through your courtier (agent) |
| Manitoba | Through agents | Contact your REALTOR® |
| Saskatchewan | Through agents | Contact your REALTOR® |
| Atlantic provinces | Varies | Through agents or provincial property registries |
MLS® rules and regulations
| Rule | Details |
|---|---|
| MLS® is a trademark | Owned by CREA — only CREA members can use the MLS® trademark and system |
| Cooperation | Listing agents must offer to cooperate with buyer agents (this is a core MLS principle) |
| Accuracy | Listing agents are responsible for accuracy of property information |
| Commission disclosure | Commission offered to buyer agents is disclosed in the MLS system |
| Days on Market | Must be accurately reported — reset rules vary by board |
| Photo standards | Boards set minimum photo requirements and quality standards |
How MLS is evolving
| Trend | What Is Changing |
|---|---|
| Open data | Increasing pressure to make sold data publicly accessible |
| Commission transparency | Pressure for clearer disclosure of commission structures |
| Technology | AI-powered search, virtual tours, 3D scans becoming standard |
| Competition | Flat-fee and discount services growing market share |
| Private listings | Debate over off-MLS (pocket) listings |
| US influence | NAR settlement ripple effects could influence Canadian commission practices |