Stone Mills property tax rate 2025
Township in Lennox and Addington · population 7,826 · 3,863 households
In 2025, Stone Mills collected $13,465,853 in residential property taxes on $922,786,852 of taxable residential assessment. That works out to an effective rate of 1.459%, 0.102 points above the Ontario median of 1.357% for 2024. Among the 391 lower- and single-tier municipalities that filed for 2024, Stone Mills ranks 222nd lowest and 2nd of 4 within Lennox and Addington. The 2025 figure is from a return filed ahead of most municipalities, so the provincial ranking still uses 2024.
Where the tax goes
| Municipal (Stone Mills) | 0.703% | 48% of the bill |
|---|---|---|
| Lennox and Addington | 0.603% | 41% |
| Education (Province of Ontario) | 0.153% | 10% |
| Total residential rate | 1.459% | 100% |
Municipal Regional / county Education
Estimate your Stone Mills property tax
| Assessed value | Municipal | Region / county | Education | Total |
|---|---|---|---|---|
| $500,000 | $3,514 | $3,017 | $765 | $7,296 |
| $750,000 | $5,271 | $4,525 | $1,148 | $10,944 |
| $1,000,000 | $7,029 | $6,034 | $1,530 | $14,593 |
Assessed value is the MPAC value on your assessment notice, not market value. Ontario has kept assessments at January 1, 2016 values since 2017, so a home bought recently is usually assessed well below its purchase price. Estimates exclude local improvement charges, business improvement area levies and any rebates.
Rate trend 2016–2025
Stone Mills's residential rate rose from 1.331% in 2016 to 1.459% in 2025. Total residential taxes collected grew 37% over the same period, which reflects both rate changes and growth in the assessment base.
Year-by-year table
| Year | Residential rate | Municipal | Region / county | Education | Residential taxes levied |
|---|---|---|---|---|---|
| 2016 | 1.331% | 0.653% | 0.490% | 0.188% | $9,823,510 |
| 2017 | 1.237% | 0.606% | 0.466% | 0.165% | $10,082,912 |
| 2018 | 1.253% | 0.612% | 0.479% | 0.162% | $10,285,871 |
| 2019 | 1.266% | 0.617% | 0.492% | 0.157% | $10,479,274 |
| 2020 | 1.281% | 0.622% | 0.506% | 0.153% | $10,753,464 |
| 2021 | 1.294% | 0.617% | 0.524% | 0.153% | $11,130,273 |
| 2022 | 1.319% | 0.628% | 0.538% | 0.153% | $11,494,694 |
| 2023 | 1.369% | 0.653% | 0.563% | 0.153% | $12,192,275 |
| 2024 | 1.404% | 0.671% | 0.580% | 0.153% | $12,690,475 |
| 2025 | 1.459% | 0.703% | 0.603% | 0.153% | $13,465,853 |
Instalments and due dates (2025)
Stone Mills reported 4 residential instalments in 2025, with due dates including February 25, 2025, April 25, 2025, July 25, 2025, September 25, 2025. Dates shift each year; check the municipal website for the current schedule.
All property classes, 2025
| Property class | Effective rate | Taxable assessment | Taxes levied |
|---|---|---|---|
| Residential | 1.459% | $922,786,852 | $13,465,853 |
| Multi-residential | 2.763% | $1,596,000 | $44,103 |
| Farmland | 0.365% | $93,141,247 | $339,790 |
| Managed forests | 0.365% | $3,993,000 | $14,555 |
| Commercial | 2.729% | $11,905,800 | $324,854 |
| Industrial | 3.719% | $9,155,800 | $340,544 |
| Large industrial | 4.443% | $9,268,700 | $411,819 |
| Pipelines | 2.536% | $511,000 | $12,958 |
| Other classes | 2.816% | $618,500 | $17,415 |
Commercial and industrial rates include the provincial business education tax. Rates for small classes can swing year to year because a few properties dominate them.
Compare within Lennox and Addington (2024)
| Municipality | Residential rate | Tax on $750,000 | Ontario rank |
|---|---|---|---|
| Stone Mills | 1.404% | $10,529 | 222 |
| Addington Highlands | 1.437% | $10,781 | 230 |
| Greater Napanee | 1.354% | $10,156 | 194 |
| Loyalist | 1.620% | $12,153 | 287 |
About these numbers
- What is an effective tax rate?
- Total property taxes billed to a class divided by that class's taxable assessment. It is the average rate actually paid, so it can differ slightly from the rate printed in the municipal by-law when a municipality applies different rates to subclasses, phase-ins or special area levies.
- Why is my bill different?
- Your bill depends on your own assessed value, any special area charges, capping or phase-in adjustments and local improvement charges. Use the rate here to compare municipalities, and your assessment notice to estimate your own bill.
- Where does the data come from?
- Every Ontario municipality files an audited Financial Information Return with the Ministry of Municipal Affairs and Housing. These pages use Schedule 26A, "Taxation and Payments-in-Lieu Summary", for 2016 through 2025. Stone Mills's latest return was updated 2026-10-07. See the methodology.