New London County Property Tax Appeal, Connecticut

Travis Bunn·Updated July 22, 2026

New London County is located in southeastern Connecticut where the Thames River meets Long Island Sound. The county seat is Norwich, with major cities including New London, Groton, Waterford, Stonington, and Mystic. With a population of approximately 269,000, New London County ranks fourth among Connecticut's eight counties. Property tax appeals are particularly important here because the county's median annual tax bill of $3,539 is substantially higher than the national median of $2,400, though slightly lower than Connecticut's state median. The effective property tax rate of 1.32% makes property tax a significant burden for homeowners, and many properties may be over-assessed, making appeals a valuable opportunity for tax savings.

Notable cities: Norwich, New London, Groton, Stonington, Mystic, Waterford

Median Home

$268,900

Tax Rate

1.32%

Annual Tax

$3,539

Population

269,000

On the typical New London County home, valued near $268,900 at the county’s effective tax rate of 1.32%, an over-assessment of even 10% means you are overpaying year after year until you appeal it. Here is how to find out if yours qualifies.

2026 Appeal Deadline: February 20, 2026 (some municipalities may extend to March 20, 2026)

This year's appeal window has passed in most of Connecticut. Order now and we re-run your numbers free when the window reopens, so your evidence is ready the day your next notice lands.

Connecticut's statutory deadline for filing property tax appeals with the Board of Assessment Appeals is February 20 each year. Some municipalities may extend this deadline to March 20. The deadline applies whether or not your municipality is conducting a revaluation. Applications must be received by the municipality by the filing deadline, not merely postmarked. Missing this deadline means waiting another full year to appeal and paying higher taxes in the interim.

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How New London County Assesses Property

70%of market value

Assessed by: Local municipal tax assessors (each town has its own assessor's office)

Assessment cycle: Revaluation every 5 years (state-mandated)

Notices typically mailed: Spring or early summer

Connecticut law requires all municipalities to assess property at 70% of fair market value. This means if your home's market value is $268,900 (the county median), your assessed value for tax purposes would be $188,230 (70% of $268,900). At the county's effective tax rate of 1.32%, this would result in an annual property tax bill of approximately $2,485. Understanding this assessment ratio is critical when appealing, as you must demonstrate that either the market value determination is incorrect or the 70% ratio was not properly applied.

The Appeal Process

Appeals are heard by the Board of Assessment Appeals. The Board of Assessment Appeals hearing is an informal proceeding, not a court trial. There are no judges or strict evidentiary rules. You will present your case to a panel of appointed board members who will review your evidence and the assessor's documentation to determine if your assessment should be adjusted.

Step 1: Obtain the BAA appeal application form from your town's assessor's office or website. Each New London County municipality has its own form, so make sure you get the correct one for your town.

Step 2: Complete the appeal form fully and provide all requested information. Include your property details, reason for appeal, and your opinion of the correct assessed value. Attach supporting evidence such as recent appraisals, comparable sales data, or documentation of property condition issues.

Step 3: File your completed appeal with the local assessor's office by February 20, 2026 (or March 20 if your municipality has extended the deadline). Ensure the application is received by this date - postmark is not sufficient. Keep a copy and proof of filing.

Step 4: Wait for notification from the Board of Assessment Appeals. The BAA must notify you of your hearing date, time, and location no later than March 1, 2026 (or April 1 if the filing deadline was extended). Hearings are typically held in March through June.

Step 5: Attend your BAA hearing and present your case. The hearing is informal - there are no strict rules of evidence or judges. You may represent yourself or hire a professional such as a tax attorney or appraiser. Present your evidence including comparable sales, appraisals, photos, and repair estimates.

Step 6: Receive the BAA's decision in writing. The Board has the power to increase, decrease, or make no change to your assessment. Review their decision carefully.

Step 7: If unsatisfied with the BAA decision, you may appeal to Superior Court within two months of the mailing date of the BAA decision. This is your final level of appeal within the formal system.

Required form: BAA Property Assessment Appeal Application (form varies by municipality - no standardized state form)

Filing Methods

in-person:Submit to your local assessor's office - each town has its own office location

mail:Mail to your municipal assessor's office - must be received by deadline, not postmarked

online:Some municipalities offer online submission - check with your local assessor

Evidence to Bring

Comparable sales data (recent sales of similar properties in your area that sold for less than your assessed value)Independent appraisal (professional appraisal showing a lower market value)Property condition documentation (photos of defects, damage, or needed repairs)Repair estimates (contractor quotes for necessary work)Income and expense statements (for commercial or rental properties)Assessment ratio verification (demonstrating incorrect application of the 70% ratio)

New London County Assessor Contact

Local Municipal Tax Assessor (varies by town - New London County has no county-level assessor)

Website: https://gis.vgsi.com/newlondonct/

Hours: Varies by municipality - contact your local assessor's office

Tax Exemptions in New London County

Veterans Exemption (Basic)

$1,500 of assessed value

All honorably discharged veterans who served at least 90 days during wartime receive a mandatory statewide exemption on their primary residence assessed value.

Eligibility: Honorably discharged veterans with at least 90 days wartime service or their surviving spousesDeadline: October 1 (one-time application with assessor's office)

Disabled Veterans Exemption (Additional)

$2,250-$4,500 additional depending on disability rating; 100% P&T rating receives full exemption

Veterans with service-connected disabilities receive additional exemptions beyond the basic $1,500, with amounts varying based on disability rating. Veterans with 100% permanent and total disability receive a full exemption on their primary residence.

Eligibility: Veterans with VA-certified service-connected disability ratings; 100% permanent and total disability for full exemptionDeadline: October 1 (annual renewal may be required for some categories)

Elderly/Disabled Homeowners Circuit Breaker

Up to $1,000 for single filers, $1,250 for married couples (graduated income scale)

State-funded property tax credit delivered directly on your tax bill. This is Connecticut's flagship senior relief program, with the state paying the credit to the municipality on behalf of qualifying homeowners.

Eligibility: Age 65+ by December 31 OR totally disabled; household income under approximately $53,400 single/$65,000 joint (2026 indexed limits); must be Connecticut resident and property must be primary residenceDeadline: February 1 - May 15 annually (with local assessor; include prior-year federal tax return)

Totally Disabled Exemption

$1,000-$3,000 of assessed value depending on municipality and disability status

Connecticut residents who are legally blind or totally disabled may qualify for an exemption on assessed value. This is separate from the Circuit Breaker credit.

Eligibility: Legally blind or totally disabled residents with qualifying documentationDeadline: October 1 (contact local assessor)

New London County Appeal Packet · $49

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Frequently Asked Questions

What is the deadline to appeal my property taxes in New London County for 2026?

The statutory deadline to file a property tax appeal with your local Board of Assessment Appeals in New London County is February 20, 2026. However, some municipalities may extend this deadline to March 20, 2026, so you should verify with your town's assessor's office. This deadline applies regardless of whether your town is conducting a revaluation. Your appeal application must be received by the assessor's office by the deadline date - simply postmarking it by that date is not sufficient. Missing this deadline means you cannot appeal until the following year and will be stuck paying the higher tax amount.

How does Connecticut's 70% assessment ratio work in New London County?

Connecticut law requires all municipalities, including those in New London County, to assess property at exactly 70% of its fair market value. This means if your home's actual market value is $268,900 (the county median), the assessor should list your assessed value as $188,230 (which is 70% of the market value). Your property tax is then calculated by applying your town's mill rate to this assessed value. When appealing, you need to prove either that the assessor's determination of your property's market value is too high, or that they failed to correctly apply the 70% ratio. Understanding this distinction is critical for building an effective appeal case.

What evidence do I need to win a property tax appeal in New London County?

To successfully appeal your property tax assessment in New London County, you need concrete evidence that your property's market value is lower than the assessor determined. The most effective evidence includes recent comparable sales - homes similar to yours in location, size, age, and condition that sold for less than your assessed value would indicate. You can also provide an independent professional appraisal, photographs documenting property defects or damage, contractor repair estimates showing needed work, or evidence that your property has unique negative characteristics the assessor overlooked. The Board of Assessment Appeals wants to see objective data, not just your opinion that taxes are too high.

Can I appeal my New London County property taxes online, or do I have to file in person?

Filing methods for property tax appeals in New London County vary by municipality since each town has its own assessor's office and procedures. Some municipalities may offer online submission of Board of Assessment Appeals applications, while others require filing in person or by mail. You must contact your specific town's assessor's office to determine what filing methods they accept. Regardless of the filing method, make sure your appeal application is actually received by the assessor's office by the February 20, 2026 deadline (or March 20 if extended in your town). If mailing, send it certified with return receipt to have proof of timely delivery.

What happens at a Board of Assessment Appeals hearing in New London County?

A Board of Assessment Appeals hearing in New London County is an informal proceeding where you present your case to a panel of appointed board members - it's not a formal court trial with a judge. You'll have the opportunity to explain why you believe your assessment is too high and present your supporting evidence such as comparable sales data, appraisals, photos, or repair estimates. The town assessor or their representative may also present their evidence supporting the current assessment. You can represent yourself or hire a professional such as a tax attorney or appraiser to present your case. After hearing both sides, the Board will issue a written decision either increasing, decreasing, or maintaining your current assessment.

How much can I save by appealing my property taxes in New London County?

The potential savings from a successful property tax appeal in New London County depends on how much you can reduce your assessed value and your town's mill rate. With the county's effective tax rate of 1.32%, if you successfully reduce your home's assessed value by $10,000, you would save approximately $132 per year. A $25,000 reduction would save about $330 annually, and a $50,000 reduction would save roughly $660 per year. These savings recur every year until the next revaluation, so over a typical 5-year revaluation cycle, even a modest assessment reduction can add up to thousands of dollars in cumulative tax savings for your household.

What is the Elderly Circuit Breaker credit and how much can I save in New London County?

The Elderly and Disabled Homeowners Circuit Breaker is Connecticut's primary property tax relief program for seniors and is available to New London County residents. This state-funded credit provides up to $1,000 for single homeowners or $1,250 for married couples, applied directly to your property tax bill on a graduated income scale. To qualify, you must be age 65 or older by December 31, or totally disabled, with household income under approximately $53,400 for single filers or $65,000 for married couples (2026 limits). You must apply annually between February 1 and May 15 with your local assessor's office and include your prior-year federal tax return. This credit is in addition to any exemptions you may qualify for such as the veterans exemption.

If the Board of Assessment Appeals denies my appeal in New London County, what are my next options?

If you're unsatisfied with the Board of Assessment Appeals decision in your New London County municipality, you have the right to appeal to Connecticut Superior Court under Connecticut General Statutes Section 12-117a. However, you must file your Superior Court appeal within two months of the mailing date of the Board's written decision - this deadline is strictly enforced. The Superior Court appeal is a more formal legal proceeding than the BAA hearing, and you may want to consider hiring an attorney who specializes in property tax appeals. Alternatively, if you miss this appeal window or choose not to pursue it, you can file a new appeal the following year by the February 20 deadline, though you'll pay the higher tax amount in the meantime.

Official Resources

Connecticut Department of Revenue Services - Property Tax Information →

Official state property tax information including veterans exemptions, appeals process, and homeowner assistance programs.

Connecticut Office of Policy and Management - Circuit Breaker Program →

Information on the Elderly and Disabled Homeowners Circuit Breaker tax relief program including eligibility and application details.

New London City Assessor's Database (Vision Government Solutions) →

Search and view property assessment information, tax records, and parcel data for properties in the City of New London.

Connecticut Veterans Affairs - Property Tax Exemptions →

Detailed information on property tax exemptions available to Connecticut veterans, including application procedures and eligibility requirements.

For state-wide appeal information including Connecticut's assessment ratio and deadlines, see our Connecticut Property Tax Appeal Guide →

Considering professional help with your appeal? Compare pricing, coverage, and pros/cons in our Best Property Tax Appeal Services (2026) or browse side-by-side service comparisons →

More Connecticut Counties

Fairfield County (Bridgeport)Hartford County (Hartford)New Haven County (New Haven)

← All Connecticut property tax appeal info

Sources: https://www.tax-rates.org/connecticut/new_london_county_property_tax | https://www.cohenandwolf.com/publication-Connecticut-Real-Property-Tax-Appeals-Board-of-Assessment-Appeals-Deadline-Reminder-2026 | https://propertytaxrates.org/blog/connecticut-property-tax-guide-2026 | https://portal.ct.gov/opm/igpp/grants/tax-relief-grants/homeowners--elderlydisabled-circuit-breaker-tax-relief-program | https://portal.ct.gov/Services/Revenue/Property-Tax | https://gis.vgsi.com/newlondonct/

Last verified: 2026-07-22