How affordable housing actually works in Canada

The national definition

In Canada the starting point is a single rule: housing is affordable when it costs less than 30% of a household's before-tax income. That is CMHC's test and the basis of the federal housing programmes. Note what it is — a ratio, not a price. A rent that is affordable to one household is not affordable to another, which is why every practical programme has to convert the ratio into a number somehow.

Average market rent, and why it matters

CMHC surveys the rental market every October and publishes the average market rent by unit type for each city and survey zone. It is a measurement, not a subsidy and not a cap. It matters because most municipal affordability definitions are anchored to it — "80% of average market rent" is a common formulation — so the AMR is the number the other numbers are derived from.

Affordable, or below-market, rental

This is a fixed maximum rent by unit type, set by a municipal or provincial programme, usually with an income ceiling attached to the tenant. It is what most new purpose-built affordable projects deliver. The rent is below the market but it is not related to your particular income; you either fall under the ceiling or you do not. Municipalities publish these schedules and update them annually.

Rent-geared-to-income, which is a different thing entirely

RGI is the deep subsidy, and it is calculated differently from what most people assume. In Ontario the rent is generally 30% of your household's net income from last year's tax return, not of what you are earning this month — so it is reset at your annual review rather than falling the moment your income does. Households on Ontario Works or ODSP pay a fixed amount from a prescribed scale instead, and there is a minimum monthly rent. It is allocated from a centralised waiting list by a public body, subject to income limits set by regulation, and the lists in the large Canadian cities are measured in years. No private developer can put you on an RGI list and none can promise you an RGI unit. If RGI is what your household needs, apply to your Service Manager directly and do not wait for anybody's project.

Who sets which number

This is the part that surprises people: it is not one authority. In Ontario municipalities publish affordable rent schedules, the Province sets the definition used for development charges, and the Household Income Limits for rent-geared-to-income are prescribed by regulation — but since 2023 each service manager sets its own local income and asset limits, which must be at least the prescribed floor and may be higher. The number that decides your application is your service manager's, not the Province's.

Note also that service manager is an Ontario term. The equivalent body is called something different everywhere else: BC Housing and the Housing Registry in British Columbia, the Société d'habitation du Québec and the local office d'habitation in Quebec, a housing management body in Alberta, Manitoba Housing in Manitoba. The principle is the same everywhere — a public body runs the list — but the name you have to search for is not. In practice you look up your own city, then your region, separately.

Why a project cannot tell you its rent years in advance

Because the rent is set close to occupancy, against the schedule in force at that time, the building's actual costs, and whichever public programme the project ends up in — and the programmes change. A development advertising a specific rent five years before completion is either guessing or quoting the municipal maximum as though it were a price. Ask which of the two it is.

The questions to ask any project

Which programme is this in, by name? Which authority sets the rent, and is the figure you are quoting theirs or yours? Is there an income ceiling, and what is it? Is this rent-geared-to-income — and if the answer is no, say so plainly, because most people asking assume it is. Is there an application, and does joining an interest list create any priority? A project that answers all six without hesitating is a project that has thought about it.

Where to look for your own city

Your municipality's housing or affordable-housing page for the rent schedule. Your Service Manager — the region or large city — for RGI and the waiting list. CMHC's Housing Market Information Portal for average market rents. In British Columbia, BC Housing for income limits. All four are free and public, and none of them requires going through a developer.