Guilford, New Haven County, Connecticut Property Taxes

$774 avg. annual savings

No Upfront Costs

You only pay if we save

Property Taxes in Guilford, Connecticut

Median Guilford, Connecticut effective property tax rate: 2.66%, significantly lower than the national median of 1.02%, and lower than the Connecticut state median of 3.05%.
Median Guilford, Connecticut home value: $331,730
Median annual Guilford, Connecticut tax bill: $8,817, higher than the national median property tax bill of $2,400.

How are property taxes in New Haven calculated?

Property taxes in Guilford, Connecticut are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.

Understanding Guilford's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Guilford, knowing local tax details benefits homeowners and investors.

Last Updated April 13, 2026

Guilford, New Haven County, Connecticut Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

2.66%

Estimate Property Tax Bill

$8,824

$8,188

How Does the Guilford Property Tax Calculator Work?

Use this Guilford property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Guilford's median effective tax rate of 2.66% — based on actual property records in New Haven County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local assessment process uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Guilford's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.

Your bill may vary by ZIP code within Guilford: rates are 2.66% in 06437, primarily due to differences in school district levies and local assessment districts. Guilford's median effective tax rate is higher than the 1.02% national median property tax rate, and the $8,817 median property tax bill is higher than the $2,400 national median property tax bill.

For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Guilford.

About Guilford Property Taxes

About Property Taxes in Guilford, New Haven, Connecticut

Guilford’s median effective property tax rate of 2.66% is lower than the Connecticut state median of 3.05% and higher than the national median of 1.02%. This rate reflects the New Haven County base levy combined with local school district levies and special assessment districts that vary by subdivision throughout the city.

Property tax rates are not uniform across Guilford. Homeowners in the 06437 ZIP code carry a median effective rate of 2.66%, while those in the lowest ZIP code also pay 2.66%. This spread reflects how school district boundaries and local assessment districts are drawn across New Haven County. Understanding which part of Guilford you live in can make a meaningful difference to your annual tax bill.

Guilford homeowners who believe their assessed value is too high can file a formal appeal with the Tax Assessor before the February 20, 2026 deadline each year.

If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.

Property Tax Rates Across Guilford, New Haven County, Connecticut

As noted earlier, local government entities set tax rates, which can vary widely within a state.

Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.

While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.

Below, you can compare Guilford's effective property tax rate to other cities in Connecticut and the median property tax rates in Connecticut and the U.S.

Property Tax Rates Across Guilford, New Haven County, Connecticut

Source: Ownwell

2.00%

3.78%

5.56%

Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.

Median Effective Guilford Tax Rate

2.66%

Median Effective New Haven County Tax Rate

3.34%

Median Effective Connecticut Tax Rate

3.05%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Guilford, New Haven County, Connecticut

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
06437	2.66%	2.66%	2.66%	2.66%	2.66%

Source: Ownwell

Property Tax Assessment Values Across Guilford, New Haven County, Connecticut

When examining property taxes in Guilford, Connecticut, understanding the distinction between "market value" and "assessed value" is crucial.

The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The New Haven County appraisal district estimates the market value for tax purposes.

The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.

Assessment notices:

In New Haven County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the month when notices are sent.

Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Guilford.

For example, the median home price in Guilford is $331,730, with tax bills ranging significantly across the county. 06437 has the highest median home price at $331,730.

Property Tax Assessment Values Across Guilford, New Haven County, Connecticut

Source: Ownwell

$98,700

$262,063

$425,425

Median Guilford Market Value

$331,730

Median New Haven County Market Value

$186,900

Median Connecticut Market Value

$209,000

Median United States Market Value

$235,294

Property Tax Assessment Values Across Guilford, New Haven County, Connecticut

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
06437	$206,640	$267,470	$331,730	$444,010	$610,834

Source: Ownwell

Property Tax Bills Across Guilford, New Haven County, Connecticut

Property tax bills in Guilford are based on the assessed value of a home, which is tied to its market value and determined by the local assessor. The town applies its property tax rate to that assessed value to calculate the annual bill, so homeowners with higher-valued properties generally pay more. In Guilford, the median home price is $331,730, and the median property tax bill is $8,817, which is well above the national median property tax bill of $2,400 and the national median property tax rate of 1.02%.

Several factors can influence the final tax bill, including changes in market conditions, neighborhood desirability, and any exemptions a homeowner may qualify for. Bills in the area can vary widely, with the 25th percentile at $7,109 and the 75th percentile at $11,802, while the 90th percentile reaches $16,236. For homeowners, that means property taxes can be a major part of the cost of owning a home and can change over time as assessed values are updated.

Property Tax Bills Across Guilford, New Haven County, Connecticut

Source: Ownwell

$4,880

$9,379

$13,878

Median Guilford Tax Bill

$8,817

Median New Haven County Tax Bill

$6,696

Median Connecticut Tax Bill

$6,666

Median United States Tax Bill

$2,400

Property Tax Bills Across Guilford, New Haven County, Connecticut

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
06437	$5,492	$7,109	$8,817	$11,802	$16,236

Source: Ownwell

Don't miss the deadline to appeal!

Dates
Appeal Deadline	February 20

Links
New Haven Tax Assessor
Website	gis.vgsi.com

Frequently Asked Property Tax Questions in Guilford, Connecticut

How are property taxes calculated in Guilford, Connecticut?

Property taxes in Guilford, Connecticut are calculated by multiplying your property's assessed value by the applicable tax rate set by local taxing authorities. The assessed value is determined by the county assessor and may differ from your property's market value depending on local assessment ratios and exemptions.

How do I appeal my property taxes in Guilford, Connecticut?

To appeal your property taxes in Guilford, Connecticut, you typically need to file a formal protest or appeal with your local appraisal district or assessor's office by the stated deadline. You'll need evidence such as comparable sales, a recent independent appraisal, or documentation of property condition issues. Ownwell can handle this entire process for you.

What property tax exemptions are available in Guilford, Connecticut?

Common property tax exemptions in Guilford, Connecticut include homestead exemptions for primary residences, senior citizen exemptions, veteran exemptions, and disability exemptions. Exemption amounts and eligibility requirements vary by county. Contact your local appraisal district or check Ownwell for details specific to your property.

When are property taxes due in Guilford, Connecticut?

Property tax deadlines in Guilford, Connecticut vary by county but typically include an assessment notice period in spring or early summer, followed by an appeal deadline, and a tax payment due date in the fall or winter. Check with your county assessor's office for specific dates in your area.

How can Ownwell help reduce my property taxes in Guilford, Connecticut?

Ownwell provides professional property tax appeal services in Guilford, Connecticut. Our team analyzes your assessment, gathers evidence, files all paperwork, and represents you at hearings — all with no upfront cost. You only pay a percentage of your savings if we successfully lower your tax bill.