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Property Tax Due Dates in Connecticut

Connecticut Property Tax Deadlines

Due Dates

July 1 - First installment

January 1 - Second installment

Late Penalty

1.5% per month (18% annual)

Grace Period

1 month (Aug 1 / Feb 1)

Payment Methods

Online, mail, in-person

Source: Official Connecticut website

Counties in Connecticut

How Property Taxes Work in Connecticut

Connecticut property taxes are administered entirely at the town and city level — the state has no counties with governmental functions. Each of Connecticut's 169 municipalities has its own assessor who determines property values and its own mill rate. This means rates and policies vary significantly from town to town. Property is assessed at 70% of fair market value (this percentage is set by state law). Grand Lists (the official assessment rolls) are updated annually and full revaluations are conducted at least every five years. Connecticut consistently ranks among the states with the highest property tax burdens relative to home values.

Payment Deadlines & Details

Payment schedules vary by town. Most Connecticut municipalities bill property taxes semi-annually: First installment: Due July 1 Second installment: Due January 1 Some municipalities bill quarterly. A grace period of 30 days typically applies, making the effective due dates August 1 and February 1 before interest begins. Late interest: 1.5% per month (18% annually) on unpaid balances, with a minimum of $2.00. Most towns offer online payment through their municipal website or a payment portal. Contact your town's tax collector for available payment methods.

Exemptions Available in Connecticut

Connecticut exemption programs are administered locally but governed by state law: Homeowner Tax Relief Programs — Municipalities are required to offer tax relief for elderly and disabled homeowners. Programs vary by town but typically include a freeze or reduction for qualifying seniors based on income. State Elderly and Totally Disabled Tax Relief — A statewide program provides a grant of up to $1,250 (single) or $1,500 (married) for qualifying residents 65 or older or totally disabled, with income limits. Apply through your town tax assessor by May 15. Veteran Exemption — Veterans receive an exemption of $1,000 to $3,000 off assessed value depending on service type. Disabled veterans may receive larger exemptions. Apply with your local assessor. Farm or Forest Exemption — Land actively used for farming or forestry may qualify for current use assessment at lower agricultural or forestry values.

How to Appeal Your Assessment in Connecticut

Connecticut property tax appeals are heard by the local Board of Assessment Appeals: Deadline: File an appeal with your town's Board of Assessment Appeals by February 20 (for real property assessed on the prior October 1 Grand List). Process: Request a hearing date, then appear before the board with your evidence — comparable sales, an independent appraisal, or documentation of property condition issues. Further appeal: If the Board of Assessment Appeals does not resolve your dispute, you may appeal to the Superior Court within two months of the board's decision.

Frequently Asked Questions

When are Connecticut property taxes due?
Most Connecticut towns bill semi-annually with taxes due July 1 and January 1, with a 30-day grace period (effective August 1 and February 1). Some municipalities bill quarterly. Late interest is 1.5% per month. Check with your local tax collector for your specific schedule.
How is property assessed in Connecticut?
Connecticut assesses property at 70% of fair market value, as set by state law. A $400,000 home is assessed at $280,000. Your tax bill is then calculated by multiplying the assessed value by your town's mill rate (dollars per $1,000 of assessed value).
Does Connecticut have a homestead exemption?
Connecticut does not have a general homestead exemption, but it does have state-mandated relief programs for elderly and disabled homeowners. A state grant program provides up to $1,500 for qualifying seniors and disabled residents. Veteran exemptions of $1,000–$3,000 are also available.
How do I appeal my Connecticut property assessment?
File an appeal with your town's Board of Assessment Appeals by February 20. Request a hearing and present evidence such as comparable sales or an independent appraisal. If denied, you can appeal to Superior Court within two months of the board's decision.

Guide last updated: February 24, 2026