Greenwich CT Property Taxes & Mill Rate (2026)
The Town of Greenwich mill rate for 2025-26 is 12.041, about $16,857 a year on a $2 million home. Here's exactly how that's calculated, what the sales and income taxes look like, and how Greenwich stacks up against its neighbors.
12.041
2025-26 mill rate
~0.84%
Effective rate of market value
6.35%
CT sales tax (no local add-on)
How Greenwich property tax is calculated
Connecticut towns set a mill rate each year. One mill equals $1 of tax for every $1,000 of a property's assessed value. Greenwich's mill rate for fiscal year 2025-26 is 12.041, or about $12.04 per $1,000 assessed.
The key detail: Connecticut assesses property at 70% of market value, not 100%. So a home worth $2,000,000 on the market is assessed at $1,400,000. Your tax is the assessed value times the mill rate:
$2,000,000 market value
× 70% assessment ratio = $1,400,000 assessed
× 0.012041 mill rate
= $16,857 per year
That works out to an effective rate of roughly 0.84% of market value (or ~1.2% of the assessed value). A town-wide property revaluation took effect for the October 2025 grand list, which can shift individual assessments even when the mill rate itself stays stable.
Sample tax bills by home price
| Market value | Assessed (70%) | Annual tax |
|---|---|---|
| $1,000,000 | $700,000 | ~$8,429 |
| $2,000,000 | $1,400,000 | ~$16,857 |
| $3,500,000 | $2,450,000 | ~$29,500 |
| $5,000,000 | $3,500,000 | ~$42,144 |
Estimates using the 12.041 mill rate and 70% assessment ratio. Actual bills vary with each property's assessed value after the latest revaluation.
How Greenwich compares to nearby towns
Here's what surprises most buyers: despite its reputation, Greenwich has one of the lowest mill rates in Fairfield County. The expense in Greenwich is the price of the real estate, not the tax percentage.
| Town | Mill rate (2025-26) | vs Greenwich |
|---|---|---|
| Greenwich | 12.041 | Lowest of the group |
| Darien | 15.48 | ~29% higher than Greenwich |
| New Canaan | 16.69 | ~39% higher than Greenwich |
| Stamford (District A) | 27.17 | More than double Greenwich |
Against New York, the gap is even wider. Westchester County towns like Scarsdale (~1.97% effective) and Rye (~1.17%) carry some of the highest property taxes in the country, well above Greenwich's ~0.84%. Combined with Connecticut having no separate municipal income tax, that's a major reason high earners relocate across the state line.
Sales, income & car taxes
- Sales tax: Connecticut charges a flat 6.35% statewide with no local sales tax, so Greenwich's rate is 6.35%. Luxury items (cars over $50,000, jewelry over $5,000) are taxed at 7.75%.
- State income tax: Connecticut has a progressive state income tax topping out around 6.99%. Unlike New York City, though, there is no municipal income tax.
- Motor vehicle tax: Cars are taxed on assessed value using a statewide cap, billed annually by the town.
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Greenwich Property Tax FAQ
What is the Greenwich CT mill rate for 2026?
The Town of Greenwich mill rate for fiscal year 2025-26 is 12.041 mills. A mill is $1 of tax per $1,000 of assessed value, so 12.041 mills equals about $12.04 per $1,000 of assessed value. Property in Connecticut is assessed at 70% of market value, so the effective rate is roughly 0.84% of a home's market value.
How much are property taxes on a $2 million home in Greenwich?
A $2,000,000 market-value home is assessed at 70%, or $1,400,000. Multiply by the 12.041 mill rate (0.012041) and the annual tax is about $16,857. A $1M home runs about $8,400 and a $5M home about $42,000 per year.
What is the sales tax in Greenwich CT?
Connecticut has a single statewide sales tax of 6.35% with no additional local or municipal sales tax, so the sales tax in Greenwich is 6.35%. Certain luxury goods (such as vehicles over $50,000 and jewelry over $5,000) are taxed at a higher 7.75% rate.
Are Greenwich property taxes lower than New York?
Yes, significantly. Greenwich's effective property tax (~0.84% of market value) is well below neighboring Westchester County, NY towns like Scarsdale (~1.97%) and Rye (~1.17%). Connecticut also has no separate municipal income tax, which is part of why many high earners relocate from NYC to Greenwich.
Why is Greenwich CT so expensive?
Greenwich's cost is driven by home prices, not its tax rate. The median single-family price runs into the multi-millions because of top schools, a 45-minute NYC commute, and 20+ miles of Long Island Sound waterfront. The surprise for most buyers is that Greenwich's mill rate (12.041) is one of the lower rates in Fairfield County. The expense is the real estate itself, not the tax percentage.
How does Greenwich's mill rate compare to nearby towns?
Greenwich's 12.041 mill rate is among the lowest in the area. For fiscal year 2025-26, Darien is about 15.48, New Canaan about 16.69, and Stamford about 27.17 (District A). On the same home, a Greenwich owner typically pays meaningfully less in property tax than owners in those towns.
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Last updated: June 2026. Mill rate from the Town of Greenwich (FY2025-26). Figures are estimates for general guidance, not tax advice. Confirm current rates with the Town of Greenwich Assessor's Office.