Property Taxes in Greenwich
Greenwich's real, current property-tax story is genuinely counterintuitive: a 2025-2026 mill rate of 12.041, among the lowest of any large Connecticut municipality, yielding a mill-rate-derived effective rate near 0.84% -- low specifically because the town's assessed property values run so high, not because tax bills themselves run small.
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Learn moreA Real, Current Mill Rate of 12.041 -- Among Connecticut's Lowest
Greenwich's town-set mill rate for fiscal year 2025-2026 is 12.041, cited as likely among the lowest of any large Connecticut municipality -- meaning for every $1,000 of assessed value, a Greenwich homeowner pays approximately $12.04 in base property tax. Some properties also carry small additional sewer-related millages (0.278 maintenance fund, 0.040 improvement fund for 2025-2026).
Connecticut Assesses at 70% of Market Value -- The Basis for the Effective Rate
Connecticut assesses real property at 70% of fair market value by state law, applied by each town's own Assessor. Applying Greenwich's 12.041 mill rate to this 70% assessment ratio yields a mill-rate-derived effective rate near 0.84% of market value -- a figure that matches at least one independently-cited source this pass found.
A Real, Disclosed Cross-Source Spread on the Effective Rate
This record discloses the real, substantial cross-source spread found this pass rather than resolving it to one number: a separate cited figure ran as low as 0.67% (Calcuris), and another ran notably higher, 1.24% (Ownwell) -- itself described as running above the national median of approximately 1.02%. The spread likely reflects different assessed-value baselines or sampled-property mixes across sources.
Why Greenwich's Rate Runs Low: A Genuine Contrast With Connecticut's Core Cities
Greenwich's real, low mill rate exists specifically because the town's assessed property values run so high -- a real, disclosed contrast with Connecticut's poorer core cities (Hartford, Waterbury, Bridgeport), which carry real mill rates well above 40 on much lower assessed values. This does not mean Greenwich homeowners pay little in absolute dollars.
A Real, Cited Example Dollar Bill
A separate, real, cited example this pass found: a median-assessed Greenwich home valued at approximately $1,486,100 carried a cited median annual property tax bill of approximately $10,001 under one specific source's methodology -- a real, disclosed figure this record does not treat as universally representative given Greenwich's own substantial home-value range.
Key takeaways
- Greenwich's 2025-2026 mill rate is 12.041 -- cited as likely among the lowest of any large Connecticut municipality.
- Connecticut assesses property at 70% of market value; applying Greenwich's mill rate to that basis yields a mill-rate-derived effective rate near 0.84%.
- A real, disclosed cross-source spread runs from 0.67% (Calcuris) to 1.24% (Ownwell) -- this record does not resolve it to one number.
- Greenwich's low rate exists because assessed values run so high, not because the town collects little -- Connecticut's poorer cities carry mill rates above 40.
- A cited median-assessed Greenwich home (~$1.49M) carried an approximately $10,001 annual bill under one methodology -- a low RATE still means a large dollar bill.
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