Rob Hartley

Founder, AppealDesk · March 27, 2026

Connecticut Property Tax Law Changes 2026: What Homeowners Need to Know

Updated March 2026

Connecticut Property Tax Snapshot: 2026

• Median home value: $275,400
• Average annual tax: $5,922
• Effective tax rate: 2.15%
• Assessment ratio: 70% of market value
• Reassessment cycle: every 5 years (revaluation)

70% Assessment Ratio and 5-Year Revaluation

Connecticut assesses property at 70% of fair market value. Municipalities must conduct a full revaluation every 5 years (with an interim adjustment at 2.5 years in some towns). Revaluation years often bring the largest assessment changes -- if your town is in a reval year, pay extra attention to your new value. The 70% ratio is applied to the appraised value. A $300,000 home has an assessed value of $210,000. Verify both the appraised value and the ratio application on your assessment notice.

Property Tax Credit (State Income Tax)

Connecticut offers a property tax credit on your state income tax return -- up to $300 for qualifying taxpayers. This isn't a property tax exemption but a state income tax credit based on property taxes paid. Income limits apply. Claim it on your CT-1040.

Senior and Disabled Tax Relief

Connecticut has multiple senior programs:

• Local option freeze: Municipalities can offer assessment freezes for seniors 65+ (income limits vary by town, typically $40,000-$60,000)
• State circuit breaker: Income-based property tax credit for seniors 65+ and disabled, worth $250-$1,250 depending on income and marital status
• Local tax deferrals: Some towns allow seniors to defer taxes as a lien

February 20 Appeal Deadline

Connecticut's appeal deadline is February 20 -- one of the earliest in the nation. File with your municipal Board of Assessment Appeals. If denied, you can appeal to the Superior Court within 2 months. The Grand List (assessment date) is October 1, so you have roughly 4.5 months between assessment and appeal deadline.

Mill Rate Variation

Connecticut has extreme variation in mill rates across municipalities. Rates range from under 10 mills in wealthy towns like Greenwich to over 40 mills in cities like Hartford and Bridgeport. This means the same home could have a tax bill 4x higher depending on which side of a town line it sits on. If you're near a municipal boundary, compare your assessment to comparable properties in the neighboring town.

Connecticut Appeal Process

• Filing deadline: February 20
• File with: Board of Assessment Appeals
• Evidence needed: Comparable sales, property condition photos, record corrections

2026 Action Checklist

1. Review your assessment notice when it arrives
2. Verify all exemptions are applied (homestead, senior, veteran)
3. Compare your assessed value to recent comparable sales
4. File your appeal by February 20 if over-assessed
5. Check your property record for errors (square footage, features, classification)