The Norwalk, CT property tax rate for fiscal year 2024–25 ranges from 22.0516 to 23.5914 mills depending on which of the city’s six taxing districts your property sits in. Connecticut assesses every property at 70% of its fair market value, so you apply the mill rate to that assessed value, not the full market price. Norwalk resets these rates each year through its budget process, so confirm the current number with the Tax Collector before you calculate.
Mill Rates by District for FY 2024–25
Norwalk is unusual in Connecticut because it doesn’t apply one citywide rate. Six taxing districts each carry their own mill rate reflecting the services funded in that area:
- First, Second, and Third Districts: 23.5445 mills
- Fourth District (sewered area): 23.5914 mills
- Fifth District: 23.3752 mills
- Sixth District: 22.0516 mills
The Fourth District runs slightly higher because its levy includes a sewer service allocation. The Sixth District’s rate is the lowest in the city by more than a full mill. Updated rates appear on Norwalk’s budget page and in the Connecticut Office of Policy and Management’s statewide mill rate database.1Connecticut Data. Mill Rates for FY 2014-2026
How to Calculate Your Tax Bill
Connecticut law fixes the assessment ratio at 70% of fair market value for every municipality.2Justia. Connecticut Code 12-62a – Uniform Assessment Date and Rate From there the formula is straightforward: multiply the assessed value by your district’s mill rate, then divide by 1,000.
A $500,000 home in the Fifth District under the FY 2024–25 rate:
- Assessed value: $500,000 × 0.70 = $350,000
- Tax: $350,000 × 23.3752 ÷ 1,000 = $8,181.32
That same house in the Sixth District comes out to roughly $7,718. District assignment alone can shift the annual bill by several hundred dollars, worth checking if you’re comparing properties in different parts of the city.
Motor Vehicle Taxes
Connecticut taxes motor vehicles as personal property, and Norwalk sends a separate bill for each registered vehicle. Starting with the October 1, 2024 grand list, assessors stopped using the NADA retail price. They now start from the manufacturer’s suggested retail price and apply a fixed depreciation schedule by vehicle age.3Justia. Connecticut Code 12-71e – Mill Rate for Motor Vehicles
Under the default schedule, a vehicle in its first model year is valued at 85% of MSRP, dropping roughly five percentage points per year and bottoming out at $500 for vehicles twenty years old or older. The 70% assessment ratio then applies to that depreciated value.2Justia. Connecticut Code 12-62a – Uniform Assessment Date and Rate The mill rate for motor vehicles is capped by state law at 32.46 mills, though a municipality can set it lower.3Justia. Connecticut Code 12-71e – Mill Rate for Motor Vehicles
Vehicles registered between October 2 and July 31 land on a supplemental grand list. Those taxes are due the following January 1, which catches people who buy a car mid-year off guard.
When Taxes Are Due and What Late Payment Costs
Norwalk’s fiscal year runs July 1 through June 30. The annual tax is split into two installments, due July 1 and January 1.4Norwalk, CT – Official Website. Tax Collector Each installment has a one-month grace period: the first can be paid through August 1 without penalty, the second through February 1. Mailed payments count by postmark, not by the date the Tax Collector receives them.
Miss the grace period and interest runs at 1.5% per month, or 18% annualized, calculated from the original due date rather than from the end of the grace period.5Justia. Connecticut Code 12-145 – Notice to Pay Taxes A payment received on August 2 for the July installment owes two months of interest, not one, because July and August are both counted. There’s also a $2 minimum interest charge per installment.4Norwalk, CT – Official Website. Tax Collector
Interest accrues monthly, not daily. Paying on August 15 costs the same as paying on August 31. This trips up anyone used to the daily accrual on mortgages or credit cards.
Why Your Assessment May Have Changed
State law requires every Connecticut municipality to conduct a full property revaluation every five years.6Justia. Connecticut Code 12-62 – Revaluation of Real Property Norwalk completed its most recent revaluation effective October 1, 2023, and the next one is scheduled for 2028.7Norwalk, CT – Official Website. 2023 Revaluation Physical inspections are required at least every ten years.
A revaluation doesn’t automatically raise everyone’s taxes. It resets assessed values to current market conditions, which redistributes the burden across the city. If your neighborhood appreciated faster than the Norwalk average, your share of the total levy rises even when the mill rate stays flat or falls. Properties in slower-appreciating areas can see bills drop in relative terms. The 2023 revaluation landed during a period of strong residential price growth, and many homeowners saw sizable assessment increases on the October 2023 grand list.
Exemptions and Relief That Reduce the Bill
Veterans
Norwalk provides a basic $6,000 exemption off the assessed value of a home or motor vehicle for qualifying veterans who served during a designated conflict period.8Norwalk, CT – Official Website. Tax Exemptions File your DD-214 long-form discharge papers with the Town Clerk by September 30 to receive the benefit on the following July bill.
An additional local exemption of up to $5,000 in assessed value is available to veterans and surviving spouses whose income falls below the applicable state thresholds.9eCode360. City of Norwalk Code Chapter 103 Article VIII Additional Veterans Property Tax Exemption Veterans with service-connected disabilities qualify for larger state-mandated exemptions scaled to the disability rating, up to a full exemption of the primary residence for those rated 100% permanently and totally disabled.
Elderly and Disabled Homeowners
The state’s circuit breaker program credits up to $1,250 for married couples and $1,000 for single homeowners who are 65 or older or permanently and totally disabled.10State of Connecticut Office of Policy and Management. Homeowners – Elderly/Disabled (Circuit Breaker) Tax Relief Program For 2026 eligibility, based on 2025 income, the ceiling is $46,300 for single applicants and $56,500 for married couples. The credit scales down as income rises within those limits.
Norwalk also runs its own local relief program with somewhat higher income thresholds than the state version.11eCode360. City of Norwalk Code Chapter 103 Taxation – Article III Tax Relief for the Elderly and Disabled Homeowners Applications for both go to the Assessor’s Office between February 1 and May 15 with proof of income and age or disability documentation.10State of Connecticut Office of Policy and Management. Homeowners – Elderly/Disabled (Circuit Breaker) Tax Relief Program Miss May 15 and you wait until the next cycle.
If You Think Your Assessment Is Wrong
Challenges go to Norwalk’s Board of Assessment Appeals, which hears real estate, business personal property, and motor vehicle cases each March. A written application is generally due by February 20.12Norwalk, CT – Official Website. Assessment Appeals Bring evidence that supports a different value: comparable sales, a recent appraisal, documentation of condition problems the assessor didn’t account for.
Motor vehicle appeals have narrowed under the new MSRP system. Because the assessor no longer looks at market value, the only ground for appeal is showing the MSRP assigned to your make and model is wrong.
If the board rules against you, Connecticut law lets you appeal to Superior Court within two months of the decision.13Justia. Connecticut Code 12-117a – Appeals From Boards of Tax Review or Boards of Assessment Appeals For properties assessed at $1 million or more, a licensed appraisal must be filed with the court within 120 days of the appeal. Court appeals carry real legal cost, so they make sense when the disputed amount is large enough to justify an appraiser and likely an attorney.