How to Appeal Your Property Tax in Connecticut
Connecticut homeowners can appeal their property tax assessment if they believe it's too high. This guide covers the 2026 appeal deadline, required evidence, and step-by-step process.
2026 Appeal Deadline: February 20
Don't miss your window. Missing the deadline means waiting another full year.
How Connecticut Assesses Property
Connecticut assesses residential property at 70% of market value. This means if your home is worth $311,000, your assessed value would be $217,700.
Connecticut assesses property at 70% of fair market value.
The Appeal Process
Appeals are heard by the Board of Assessment Appeals. An informal review is available before filing a formal appeal.
Board of Assessment Appeals
Superior Court
Connecticut Appeal Deadline
What Overassessment Costs Connecticut Homeowners
The median home in Connecticut is worth $311,000. If your assessment is just 10% too high, you may be overpaying:
~$669/year
Effective tax rate: 2.15% · Median value: $311,000
Check Your Connecticut Assessment
Enter your address to see your estimated overassessment and Connecticut filing deadline.
Connecticut Counties
Fairfield County
Median: $477,700 · Rate: 1.30%
Deadline: February 20, 2026 (some municipalities extend to March 20, 2026)
→ View Guide
Hartford County
Median: $336,650 · Rate: 3.54%
Deadline: February 20, 2026
→ View Guide
New Haven County
Median: $174,720 · Rate: 3.48%
Deadline: February 20, 2026
→ View Guide
Guides & Resources
Property Tax Appeal Resources
Best Appeal Services Compared
7 companies compared — pricing, coverage, and pros/cons for 2026.
2026 Appeal Deadlines
Every state's deadline, filing method, and what happens if you miss it.
Assessment Ratios by State
Every state's assessment percentage — from 4% to 100% — with worked examples.
9 Ways to Lower Your Property Taxes
From homestead exemptions to formal appeals — every method that works.
Savings Calculator
Check if you're overassessed — enter your assessed value to see potential savings.