Housing

Renting vs Buying in Toronto: The Real Math

September 24, 2026 · 8 min read · Rates and rules verified September 2026

In Toronto, renting versus buying is rarely a spreadsheet decision at first — it is an emotional one, tangled up with family expectations, fear of being priced out forever, and the cultural weight of ownership. But the emotion is exactly why the math matters. Done properly, the comparison is not “rent versus mortgage payment.” It is the full, unrecoverable cost of owning against the full cost of renting, with the time value of your down payment counted honestly on both sides.

The 5% rule: a back-of-the-envelope starting point

Popularized in Canada by Ben Felix, the 5% rule says the unrecoverable costs of owning a home run about 5% of the home’s value per year, broken down roughly as:

Property tax: around 0.6–1% in the GTA (Toronto proper is on the lower end; the 905 suburbs tend to be higher).
Maintenance: budget about 1% of the home’s value per year, averaged over time. Condos hide some of this inside maintenance fees — which are themselves an unrecoverable cost.
Cost of capital: about 3% — the mortgage interest you pay plus the investment return you give up by tying up your down payment instead of investing it.

The rule of thumb: take 5% of a home’s price, divide by 12, and compare that monthly figure to what renting the equivalent home would cost. If rent is lower, renting is likely the better financial deal; if rent is higher, buying likely wins. On a $900,000 Toronto condo, 5% is $45,000 a year, or $3,750 a month — compare that to actual rents for comparable units and you have your first honest answer.

The opportunity cost most buyers ignore

A $180,000 down payment (20% on that $900,000 condo) is not just a ticket into the market — it is $180,000 that is no longer compounding for you elsewhere. At a 6–7% long-run expected return, that is $11,000–$13,000 a year of foregone growth, every year, for as long as you own. Renters who actually invest the difference capture this; renters who spend it do not, which is why “rent and invest the difference” only works if you genuinely invest the difference.

On the other side of the ledger, buying has a built-in savings mechanism the renter lacks: every mortgage payment’s principal portion is forced savings, converting cash into home equity. For undisciplined savers, that forced discipline is worth something real — it is one of the most honest arguments for buying.

Toronto’s extra costs: CMHC and double land transfer tax

Put down less than 20% and the federal rules require CMHC mortgage loan insurance, with the premium — 2.8% to 4.0% of the mortgage amount depending on your down payment — added straight onto your loan. At 5% down on an $800,000 purchase, the 4.0% premium adds $30,400 to what you borrow, plus PST on the premium in Ontario. It is the price of getting in early, and it meaningfully changes the math for small-down-payment buyers.

Then there is land transfer tax: within the City of Toronto you pay it twice — once to Ontario and once to the city — on the same purchase. On an $800,000 Toronto home, the combined bill is about $24,950 before any first-time buyer rebates. That is a sunk cost you never recover, due in full on closing day. Our Ontario land transfer tax guide walks through every bracket and both rebates.

Putting it together: $900,000 Toronto condo.

Unrecoverable owning costs (5% rule): ~$45,000/year, or $3,750/month.

Buying also means ~$25,000 in land transfer tax on day one, plus 1.5–4% in other closing costs — and roughly 5% of the price again when you eventually sell (commissions, legal, moving).

If a comparable unit rents for $3,200/month, renting wins on the math — provided the $550 monthly difference is actually invested, not spent.

Toronto-specific factors people forget

Rent control has a cutoff. Ontario rent control applies to units first occupied before November 15, 2018. Newer purpose-built rentals and condos are exempt — a huge share of Toronto’s rental stock — so “rent can never spike” is not a safe assumption for newer buildings.
Closing costs are 1.5–4% of the price, on top of the down payment: land transfer tax, legal fees, title insurance, adjustments, and moving. On $900,000, budget $15,000–$35,000 in cash you will never see again.
Time horizon dominates everything. Those round-trip transaction costs (buying costs plus ~5% to sell) get amortized over your holding period. Over 3 years they are brutal; over 12 years they fade into the background. As a rough guide, buying needs roughly a 7–10 year horizon in Toronto to reliably beat renting on the numbers.
Appreciation is not a plan. Toronto prices have had extraordinary decades and flat ones. The math above works without assuming any price growth — treat appreciation as a possible bonus, not the reason to buy.

The non-financial side is real too. Stability, control over your space, no landlord showings, putting down roots — these have genuine value that no spreadsheet captures. The point of the math is not to talk you out of buying; it is to make sure you know what the lifestyle is actually costing you.

When buying wins in Toronto

Buying tends to come out ahead when several of these are true: you will stay put for a decade or more; your household income comfortably supports the payments with room for rate increases; you are buying well within your means rather than at the maximum the bank allows; and the rent on a comparable home is close to or above that 5%-rule monthly figure. When most of those fail — short horizon, stretched budget, cheap comparable rent — renting and investing the difference is not “throwing money away.” It is often the sharper financial move.