Sarnia Property Tax Rate 2026
The residential rate, the taxes that add up to it, and a calculator for your home
Sarnia's 2026 residential property tax rate is 1.7972% of assessed value, up from 1.7337% in 2025 (+3.7%). A home assessed at $500,000 pays about $8,986 a year, and one at $1,000,000 about $17,972. It is the 14th highest of the 60 Ontario cities and towns we cover; their median rate is 1.4126%.
Sarnia property tax calculator
Ontario still uses January 1, 2016 values, usually well below what the home would sell for today.
The tax is the assessed value times Sarnia's 2026 rate of 1.7972%. Flat charges on the same bill, such as water or garbage fees, are not included.
Property tax in 2026
$8,986/yr
$749 a month
At the 2025 rate (1.7337%), the same value paid $8,669: $318 less than in 2026.
How the rate adds up
Sarnia is part of the County of Lambton, so its homes pay taxes to both the city and the county, plus the provincial education tax for schools, all on one bill. Each is a percentage of the home's assessed value; added together, they make the 1.7972% rate.
| Tax | Rate | Tax per year on $500,000 |
|---|---|---|
| City of Sarnia | 1.0289% | $5,145 |
| Transit (special service area) | 0.0710% | $355 |
| County of Lambton | 0.5443% | $2,722 |
| Education (provincial) | 0.1530% | $765 |
| Total in 2026 | 1.7972% | $8,986 |
| Total in 2025 | 1.7337% | $8,669 |
It is the rate inside the transit area, which covers the urban part of the city; homes outside it pay 1.7262%.
Property tax at different home values
| Assessed value | Tax per year | Tax per month |
|---|---|---|
| $400,000 | $7,189 | $599 |
| $600,000 | $10,783 | $899 |
| $800,000 | $14,378 | $1,198 |
| $1,000,000 | $17,972 | $1,498 |
| $1,500,000 | $26,959 | $2,247 |
| $2,000,000 | $35,945 | $2,995 |
Ontario cities and towns compared
| Markham | 0.7229% | 0.7003% | +3.2% | $3,614 |
| Vaughan | 0.7492% | 0.7327% | +2.3% | $3,746 |
| Richmond Hill | 0.7601% | 0.7370% | +3.1% | $3,801 |
| Toronto | 0.7673% | 0.7541% | +1.8% | $3,837 |
| Essa Township | 0.8447% | 0.8171% | +3.4% | $4,223 |
| Oakville | 0.8510% | 0.8346% | +2% | $4,255 |
| Whitchurch-Stouffville | 0.8552% | 0.8296% | +3.1% | $4,276 |
| Milton | 0.8651% | 0.8260% | +4.7% | $4,326 |
| Aurora | 0.8740% | 0.8509% | +2.7% | $4,370 |
| Adjala-Tosorontio | 0.8859% | 0.8647% | +2.5% | $4,430 |
| King Township | 0.9160% | 0.8876% | +3.2% | $4,580 |
| East Gwillimbury | 0.9163% | 0.8885% | +3.1% | $4,581 |
| Newmarket | 0.9190% | 0.8916% | +3.1% | $4,595 |
| Caledon | 0.9822% | 0.9354% | +5% | $4,911 |
| Halton Hills | 1.0040% | 0.9555% | +5.1% | $5,020 |
| Burlington | 1.0153% | 0.9716% | +4.5% | $5,076 |
| Mississauga | 1.0879% | 1.0339% | +5.2% | $5,440 |
| Bradford West Gwillimbury | 1.1081% | 1.0685% | +3.7% | $5,540 |
| New Tecumseth | 1.1100% | 1.0800% | +2.8% | $5,550 |
| Georgina | 1.1911% | 1.1558% | +3.1% | $5,956 |
| Innisfil | 1.2396% | 1.1897% | +4.2% | $6,198 |
| Brampton | 1.2534% | 1.2006% | +4.4% | $6,267 |
| Ottawa | 1.2721% | 1.2271% | +3.7% | $6,361 |
| Uxbridge | 1.2967% | 1.2455% | +4.1% | $6,484 |
| Pickering | 1.3373% | 1.2882% | +3.8% | $6,686 |
| Whitby | 1.3825% | 1.3322% | +3.8% | $6,912 |
| Scugog | 1.3870% | 1.3334% | +4% | $6,935 |
| Ajax | 1.3887% | 1.3357% | +4% | $6,943 |
| Haldimand County | 1.4033% | 1.3597% | +3.2% | $7,016 |
| Kitchener | 1.4060% | 1.3567% | +3.6% | $7,030 |
| Clarington | 1.4192% | 1.3650% | +4% | $7,096 |
| Waterloo | 1.4323% | 1.3655% | +4.9% | $7,161 |
| Barrie | 1.4675% | 1.4118% | +3.9% | $7,338 |
| Brock Township | 1.4775% | 1.4221% | +3.9% | $7,387 |
| Guelph | 1.4944% | 1.3977% | +6.9% | $7,472 |
| Cambridge | 1.5122% | n/a | n/a | $7,561 |
| Orillia | 1.5317% | 1.5117% | +1.3% | $7,658 |
| Hamilton | 1.5572% | 1.4971% | +4% | $7,786 |
| Orangeville | 1.5583% | 1.5128% | +3% | $7,792 |
| Kawartha Lakes | 1.5739% | 1.4588% | +7.9% | $7,869 |
| Oshawa | 1.5753% | 1.5245% | +3.3% | $7,877 |
| Brantford | 1.5951% | 1.5365% | +3.8% | $7,976 |
| Kingston | 1.6054% | 1.5518% | +3.5% | $8,027 |
| Norfolk County | 1.6584% | 1.5738% | +5.4% | $8,292 |
| London | 1.7271% | 1.6764% | +3% | $8,636 |
| Niagara Falls | 1.7489% | 1.6684% | +4.8% | $8,744 |
| Sarnia | 1.7972% | 1.7337% | +3.7% | $8,986 |
| North Bay | 1.8104% | 1.7522% | +3.3% | $9,052 |
| St. Catharines | 1.8422% | 1.7749% | +3.8% | $9,211 |
| Peterborough | 1.8893% | 1.7691% | +6.8% | $9,446 |
| Woodstock | 1.8945% | 1.8209% | +4% | $9,472 |
| Greater Sudbury | 1.9072% | 1.8263% | +4.4% | $9,536 |
| Sault Ste. Marie | 1.9119% | 1.8494% | +3.4% | $9,559 |
| Thunder Bay | 1.9231% | 1.8563% | +3.6% | $9,616 |
| Welland | 1.9816% | 1.9016% | +4.2% | $9,908 |
| Cornwall | 2.0061% | 1.9102% | +5% | $10,030 |
| Belleville | 2.0303% | 1.9318% | +5.1% | $10,152 |
| Windsor | 2.0965% | 2.0953% | +0.1% | $10,483 |
| Timmins | 2.1685% | 2.0718% | +4.7% | $10,843 |
| Chatham-Kent | 2.3227% | 2.2480% | +3.3% | $11,614 |
How homes are assessed in Ontario, with the same table, is on the Ontario property tax rates page.
Sarnia Property Tax: Quick Answers
What is the property tax rate in Sarnia?
In 2026, it is 1.7972% of a home's assessed value. It adds up four taxes: City of Sarnia (1.0289%), transit (0.0710%), County of Lambton (0.5443%) and education (0.1530%). It is the rate inside the transit area, which covers the urban part of the city; homes outside it pay 1.7262%.
How much is property tax on a house in Sarnia?
About $8,986 a year on a home assessed at $500,000, $13,479 at $750,000 and $17,972 at $1,000,000.
How is property tax calculated in Sarnia?
The tax is the home's assessed value times the rate: $500,000 × 1.7972% = $8,986. Ontario still assesses homes at their value on January 1, 2016, so the bill on a home bought today is usually lower than the rate times the price.
Did property tax go up in Sarnia in 2026?
The rate went up 3.7%, from 1.7337% in 2025 to 1.7972%. 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: Sarnia, 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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