Châteauguay Property Tax Rate 2026
The residential rate, the taxes that add up to it, and a calculator for your home
Châteauguay's 2026 residential property tax rate is 0.6745% of assessed value, up from 0.6735% in 2025 (+0.1%). A home assessed at $500,000 pays about $3,372 a year, and one at $1,000,000 about $6,745. On the average home in Châteauguay, priced at $537,058 in Q2 2026, that rate comes to about $3,622 a year. It is the 12th highest of the 23 Quebec cities and towns we cover; their median rate is 0.6745%.
Châteauguay property tax calculator
The value on the city's roll, which is updated every three years.
The tax is the assessed value times Châteauguay's 2026 rate of 0.6745%. Flat charges on the same bill, such as water or garbage fees, are not included.
Property tax in 2026
$3,622/yr
$302 a month
At the 2025 rate (0.6735%), the same value paid $3,617: $5 less than in 2026.
How the rate adds up
A home in Châteauguay pays four separate property taxes on the same bill, each set by a different government or for a different purpose. Each is a percentage of the home's assessed value; added together, they make the 0.6745% rate.
| Tax | Rate | Tax per year on $500,000 |
|---|---|---|
| General property tax | 0.5507% | $2,754 |
| ARTM transit tax | 0.0365% | $183 |
| Metropolitan community tax (CMM) | 0.0083% | $42 |
| School tax | 0.0790% | $395 |
| Total in 2026 | 0.6745% | $3,372 |
| Total in 2025 | 0.6735% | $3,368 |
Flat fees per dwelling add $1,216: water ($387), wastewater ($426), garbage and organics ($270), bulky items ($15) and the Régie Beau-Château sports complex ($118).
Property tax at different home values
| Assessed value | Tax per year | Tax per month |
|---|---|---|
| $400,000 | $2,698 | $225 |
| $600,000 | $4,047 | $337 |
| $800,000 | $5,396 | $450 |
| $1,000,000 | $6,745 | $562 |
| $1,500,000 | $10,117 | $843 |
| $2,000,000 | $13,490 | $1,124 |
On a typical home in Châteauguay
| Home | Price | Tax per year | Tax per month |
|---|---|---|---|
| Average home | $537,058 | $3,622 | $302 |
| Single-family | $530,000 median | $3,575 | $298 |
| Condo | $390,000 median | $2,631 | $219 |
The prices are from our Châteauguay report for Q2 2026, and each is taxed as if it were the home's assessed value. Quebec cities reassess homes every three years, so assessments trail recent prices, and lower their rates when a new roll raises values: a change in the rate is not always a change in the bill.
Quebec cities and towns compared
| Mirabel | 0.3960% | 0.4782% | -17.2%* | $1,980 |
| Boucherville | 0.4766% | 0.4750% | +0.3% | $2,383 |
| Blainville | 0.5450% | 0.5342% | +2% | $2,725 |
| Vaudreuil-Dorion | 0.5526% | 0.5383% | +2.6% | $2,763 |
| Brossard | 0.5569% | 0.5579% | -0.2%* | $2,784 |
| Saint-Hyacinthe | 0.6185% | 0.6116% | +1.1% | $3,092 |
| Saint-Jean-sur-Richelieu | 0.6233% | 0.6152% | +1.3% | $3,116 |
| Granby | 0.6382% | 0.6284% | +1.6% | $3,191 |
| Saint-Jérôme | 0.6510% | 0.7992% | -18.5%* | $3,255 |
| Repentigny | 0.6529% | 0.6380% | +2.3% | $3,264 |
| Laval | 0.6699% | 0.7421% | -9.7%* | $3,349 |
| Châteauguay | 0.6745% | 0.6735% | +0.1% | $3,372 |
| Mascouche | 0.7089% | 0.6957% | +1.9% | $3,544 |
| Drummondville | 0.7130% | 0.7002% | +1.8% | $3,565 |
| Montreal | 0.7352% | 0.7291% | +0.8% | $3,676 |
| Lévis | 0.7638% | 0.9130% | -16.3%* | $3,819 |
| Terrebonne | 0.7682% | 0.8050% | -4.6%* | $3,841 |
| Sherbrooke | 0.7723% | 0.7588% | +1.8% | $3,861 |
| Longueuil | 0.8206% | 0.8837% | -7.1%* | $4,103 |
| Quebec City | 0.8254% | 0.8126% | +1.6% | $4,127 |
| Gatineau | 0.8261% | 0.9267% | -10.9%* | $4,130 |
| Saguenay | 1.0502% | 1.0372% | +1.2% | $5,251 |
| Trois-Rivières | 1.0761% | 1.0532% | +2.2% | $5,380 |
* The rate changed with a new or phased-in assessment roll, so the bill changed less than the rate: see the city's page.
How homes are assessed in Quebec, with the same table, is on the Quebec property tax rates page.
Châteauguay Property Tax: Quick Answers
What is the property tax rate in Châteauguay?
In 2026, it is 0.6745% of a home's assessed value. It adds up four taxes: general property tax (0.5507%), ARTM transit tax (0.0365%), metropolitan community tax (0.0083%) and school tax (0.0790%). Flat fees per dwelling add $1,216: water ($387), wastewater ($426), garbage and organics ($270), bulky items ($15) and the Régie Beau-Château sports complex ($118).
How much is property tax on a house in Châteauguay?
About $3,372 a year on a home assessed at $500,000, $5,059 at $750,000 and $6,745 at $1,000,000. On the average home in Châteauguay ($537,058), it is about $3,622.
How is property tax calculated in Châteauguay?
The tax is the home's assessed value times the rate: $500,000 × 0.6745% = $3,372. Quebec cities reassess homes every three years, so assessments trail recent prices, and lower their rates when a new roll raises values: a change in the rate is not always a change in the bill.
Did property tax go up in Châteauguay in 2026?
The rate went up 0.1%, from 0.6735% in 2025 to 0.6745%. A bill also changes with the home's assessment.
Work out your own numbers
- Property tax estimator: the tax on your home's assessed value
- Annual cost of ownership calculator: property tax with insurance, utilities and upkeep
- Understanding property taxes before you buy
- Income needed to buy a home in each city, with property tax in the monthly cost
Other provinces
Source: Châteauguay, 2026 tax rates; 2025 tax rates. Rates are for a residential home and include the school or education tax; flat fees on the same bill are not included.
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