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

Property tax & assessment — Mississippi Mills, Ontario: By-law No. 26-033 — 2026 Estimates and Tax Rates

In the Town of Mississippi Mills, Ontario, property tax & assessment rules are set by By-law No. 26-033 — 2026 Estimates and Tax Rates, verified 2026-10-19. Due dates: Thursday, July 30th, 2026 and Tuesday, September 29, 2026.

By-law No. 26-033 — 2026 Estimates and Tax Rates adopted bylaw

tax rate	Residential: Municipal .00557228, Policing .00092811, County .00420400; New Multi-Res. .00612951/.00102092/.00462440; Multi-Residential .01099595/.00183147/.00829588; Commercial .01026931/.00171044/.00774767; Industrial .01410698/.00234964/.01064299; Agg. Extraction .01147894/.00191191/.00866027; Pipeline .01118494/.00186295/.00843846; Farmland .00139307/.00023203/.00105100; Managed Forest .00139307/.00023203/.00105100. Schedule 'B' total rates: RES/FARM 1.22343900%; MULTI-RES 2.26533000%; NEW MULTI-RES 1.33048300%; COMMERC. CT 2.85274200%; C7 2.19274200%; C0 2.19274200%; CU 2.85274200%; CX 2.85274200%; SHOP CENTR ST 2.85274200%; PARK LOT/VA XT 2.85274200%; INDUSTRIAL IT/IU/IX 3.58996100%; AGG EXTRACTION VT 2.71611200%; PIPELINE PT 3.02863500%; FARMLAND FT 0.30586000%; MG. FOREST TT 0.30586000%.	s. 1 and Schedule 'B'
due dates	Thursday, July 30th, 2026 and Tuesday, September 29, 2026	s. 4
penalty interest	Penalty: one and one-quarter percent (1.25%) of unpaid taxes on first day of calendar month following due date and monthly thereafter, but not after December 31st, 2026; Interest: one and one-quarter percent (1.25%) on January 1st, 2027 and first day of each calendar month thereafter.	s. 5 and s. 6

scout note

Municipality of Mississippi Mills by-law adopting 2026 estimates and levying tax rates by property class under Municipal Act s.312, using Lanark County tax ratios (By-law 2026-04); Schedules A and B list the rates.

Property Taxes — due dates and Tax Rates by-laws (2019-2026)

2026 interim bill due Feb 27, 2026 (about 40% of prior year); final bills mailed July 6 with instalments due July 30 and Sept 28, 2026. Links tax rates by-laws 2019-2026.