What is the tax rate? When are taxes due? How is property assessed?

Property tax & assessment — Southwest Middlesex, Ontario: By-law 2026/038 — 2026 Tax Rates and Penalty and Interest in Default of Payment

In the Municipality of Southwest Middlesex, Ontario, property tax & assessment rules are set by By-law 2026/038 — 2026 Tax Rates and Penalty and Interest in Default of Payment, verified 2026-10-19. Due dates: one-half on or before August 28, 2026 and one-half on or before November 28, 2026.

By-law 2026/038 — 2026 Tax Rates and Penalty and Interest in Default of Payment adopted bylaw

tax rate	Per Schedule "A" (total rates, six decimal places): Residential 0.01722066; Multi-Residential 0.02929885; Farmland 0.00430532; Managed Forest 0.00430532; Commercial/Parking Lot 0.02676494; Comm New Construction 0.02676494; Comm Excess Land 0.02137546; Comm Vacant Land 0.02137546; Industrial 0.03618284; Ind Excess Land 0.02659885; Ind Vacant Land 0.02659885; Pipeline 0.02536213; Landfill 0.02706040	Schedule "A"
due dates	one-half on or before August 28, 2026 and one-half on or before November 28, 2026	s. 10: "one-half on or before August 28, 2026 and one-half on or before November 28, 2026"
penalty interest	Penalty of 1.25% per calendar month on taxes remaining unpaid, levied on first day of default; interest of 1.25% per month on unpaid taxes levied on first day of each calendar month following due date and every month thereafter	s. 13: "one and one quarter per cent (1.25%) per calendar month"; s. 14: "interest at a rate of one and one quarter per cent (1.25%)"

scout note

Municipality of Southwest Middlesex 2026 tax rates by class under Municipal Act s.312, with penalty and interest on default of payment. Scanned PDF, read by OCR.

2026 Tax Rates (laws page)

Municipality's laws page for the 2026 tax rates by-law; sibling pages exist for 2023-2025.