Updated October 2026. Mill rates are the fiscal year 2026-27 rates (October 1, 2025 grand list) from the State of Connecticut’s open data, read this month.
A Connecticut mill rate is the tax per $1,000 of assessed value, and every town assesses homes at 70% of market value. For fiscal year 2026-27, town rates run from 9.8 mills in Salisbury to 69.95 in Hartford, with a median of 27.47. On a $447,300 home, that’s about $3,070 to $21,900 a year.
Jump to: 💲 The math · 📍 Rates by town · 🏠 Find your parcel · 🪜 Appeals and relief · ❓ FAQ
Key takeaways
- State law sets assessments at 70% of present true and actual value, in every town (CGS § 12-62a).
- Tax = assessed value × mill rate ÷ 1,000. One mill is $1 per $1,000 of assessed value.
- FY 2026-27 rates: Salisbury 9.8, Greenwich 10.125, Stamford 28.47, New Haven 39.962, Hartford 69.95.
- Appeals to your town’s Board of Assessment Appeals are due by February 20.
How do you calculate Connecticut property tax from the mill rate?
Two steps. First, the assessed value. Connecticut General Statutes § 12-62a says every town must assess property at a uniform 70% of its present true and actual value. Then multiply by the mill rate and divide by 1,000.
| Step | Example |
|---|---|
| Market value | $447,300 (Connecticut typical home value, Zillow, September 2026) |
| Assessed value at 70% | $313,110 |
| Mill rate | 27.47 (the median town rate for FY 2026-27) |
| Annual tax | $313,110 × 27.47 ÷ 1,000 = about $8,601 |
A quick way to compare towns: multiply the mill rate by 0.07 to get the tax as a percent of market value. A 30-mill town taxes about 2.1% of market value each year. Hartford, at 69.95, is about 4.9%.
The tax year runs from July 1 to June 30. Rates for fiscal year 2026-27 apply to the October 1, 2025 grand list.
What are the mill rates in Connecticut towns for 2026-27?
Each town’s legislative body sets its rate each year. These are the real estate rates the state’s open data lists for fiscal year 2026-27, with the tax on a $447,300 home.
| Town | Mill rate | Tax as % of market value | Tax on a $447,300 home |
|---|---|---|---|
| Hartford | 69.95 | 4.90% | $21,902 |
| Hamden | 53.67 | 3.76% | $16,805 |
| West Hartford | 46.77 | 3.27% | $14,644 |
| Waterbury | 43.34 | 3.03% | $13,570 |
| New Haven | 39.962 | 2.80% | $12,513 |
| New Britain | 39.18 | 2.74% | $12,268 |
| Bristol | 35.30 | 2.47% | $11,053 |
| Middletown | 33.30 | 2.33% | $10,427 |
| Norwalk | 32.00 | 2.24% | $10,020 |
| Stamford | 28.47 | 1.99% | $8,914 |
| Bridgeport | 27.95 | 1.96% | $8,751 |
| New London | 27.10 | 1.90% | $8,485 |
| Danbury | 25.23 | 1.77% | $7,900 |
| Fairfield | 19.19 | 1.34% | $6,009 |
| Darien | 16.05 | 1.12% | $5,025 |
| Westport | 13.20 | 0.92% | $4,133 |
| Greenwich | 10.125 | 0.71% | $3,170 |
| Salisbury | 9.80 | 0.69% | $3,069 |
Some towns add fire or service district taxes on top, so your bill can be higher than the town rate. Cars are taxed at a separate rate: Hartford’s motor vehicle rate for 2026-27 is 32.46 mills, while Greenwich’s matches its real estate rate.
Same price, very different bill. The Hartford home above pays almost seven times what the same home pays in Greenwich. If you’re buying, run this math before you pick a town. If you’re selling, buyers will.
How often are Connecticut homes revalued?
Under CGS § 12-62, each town must revalue at least every five years, on a schedule the state sets by revaluation zone. The assessor must also fully inspect each parcel at least once every ten assessment years.
The revaluation year is when your assessment can jump. Mill rates often drop in the same year, so a higher value doesn’t always mean a higher bill. Check your town’s next revaluation date with the assessor.
How do you find your Connecticut parcel ID and assessment?
Connecticut has no county government, so property records live with each town. Your parcel ID may be called a Map-Block-Lot number, Parcel ID or Account Number. Formats vary by town.
Here’s where to look:
- Your tax bill, which shows the parcel ID, assessed value and mill rate.
- Your town assessor’s online search. The state keeps a directory of all 169 assessors at portal.ct.gov, Municipal Assessors.
- Your deed, recorded with the Town Clerk, which lists the volume and page.
Many towns use Vision Government Solutions for their property cards. Start with the vgsi.com CT Online Database, or go straight to a town:
- Bridgeport: gis.vgsi.com/bridgeportct.
- Hartford: Hartford Property Viewer.
- New Haven: gis.vgsi.com/newhavenct.
- Stamford: gis.vgsi.com/stamfordct.
- Norwalk: gis.vgsi.com/norwalkct.
- Middletown: gis.vgsi.com/middletownct.
- New London: gis.vgsi.com/newlondonct.
Check the property card for errors: square feet, bedrooms, baths, lot size. A wrong fact is the easiest assessment to fix.
How do you appeal an assessment or lower your bill?
Start informally. Call the assessor and point out any data error on your card. Many get fixed without a hearing.
If that fails, file with your town’s Board of Assessment Appeals. State law says the appeal must be filed on or before February 20. Bring recent sales of similar homes or an appraisal. Divide your assessment by 0.70 to see the market value the town used, then compare. If you disagree with the board, you can take it to Superior Court.
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Older homeowners may qualify for state tax relief. Under the program in Chapter 204a, owners 65 or older, or totally disabled, with qualifying income can get a credit; the state schedule tops out at $1,250 for married owners. Applications go to the assessor between February 1 and May 15. Veterans, farmland and open space have their own exemptions; ask your assessor which apply.
What do mill rates mean if you’re selling a Connecticut home?
Buyers look at taxes as part of the monthly payment. In a high-mill town, the tax line can be as big as the insurance and HOA lines combined. Put the current tax and mill rate in your listing so buyers don’t have to guess.
Selling without a listing agent? Beycome lists Connecticut homes on Smart MLS, and a flat fee MLS listing costs $99 with $0 to Beycome at closing. See how to list a Connecticut home on the MLS by owner and how to sell a Connecticut home without a realtor.
Looking up a parcel in another state? See our guides for New York property tax IDs, Georgia parcel numbers, Texas property tax IDs, North Carolina parcel numbers, Ohio parcel numbers, South Carolina tax IDs, Virginia parcel numbers and California APNs.
Frequently asked questions
What is a mill rate in Connecticut?
The tax per $1,000 of assessed value. A 30-mill rate means $30 of tax for every $1,000 of assessment.
How is property assessed in Connecticut?
At 70% of present true and actual value, in every town, under CGS § 12-62a. A $500,000 home is assessed at $350,000.
Which Connecticut town has the highest mill rate?
Hartford, at 69.95 mills for fiscal year 2026-27. Hamden is next at 53.67.
Which Connecticut town has the lowest mill rate?
Salisbury, at 9.8 mills for 2026-27, followed by Greenwich at 10.125 and Washington at 10.85.
When is the deadline to appeal a Connecticut assessment?
File with your town’s Board of Assessment Appeals on or before February 20.
How do I look up property tax in Stamford?
Search the Stamford property cards on gis.vgsi.com/stamfordct, then multiply the assessment by 28.47 and divide by 1,000 for the 2026-27 tax.
Reviewed by Beycome Brokerage Realty LLC, a licensed real estate brokerage. Licenses are listed at beycome.com/faq/how-to/are-you-a-licensed-broker/.
Mill rates are the real estate and personal property rates for fiscal year 2026-27 (October 1, 2025 grand list) as published in the State of Connecticut’s “Mill Rates for FY 2014-2026” open data set, read October 22, 2026. One town (Canterbury) showed no rate yet and was left out of the median. District taxes can add to a town’s rate. Confirm your rate with your tax collector.
The $447,300 figure is Zillow’s Home Value Index for Connecticut, September 2026. Tax examples are estimates before any exemptions or credits.
Beycome prices are as of October 2026. “$0 at closing” means no Beycome fee at closing; other closing costs and taxes still apply.
This is general information, not legal or tax advice. Check with your town assessor.
Sources
- State of Connecticut open data, Mill Rates (fiscal year 2026-27 rows), read October 22, 2026.
- Connecticut General Statutes, Chapter 203 (§ 12-62, § 12-62a, § 12-111), read October 22, 2026.
- Connecticut General Statutes, Chapter 204a (tax relief for elderly and disabled homeowners), read October 22, 2026.
- Connecticut OPM, Municipal Assessors directory, read October 22, 2026.
- Zillow Research, Home Value Index (Connecticut, September 2026).
- Beycome, listing package features, October 2026.
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