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Connecticut Property Tax Appeal

Property Tax Appeal in Connecticut

Connecticut homeowners have the right to appeal their property tax assessment. The deadline is February 20, 2026. ProtestMax generates your complete appeal packet for $45 flat.

Assessment Ratio

70%

Appeal Deadline

February 20, 2026

Official Form

Board of Assessment Appeals form

Risk of Increase

Yes

How Assessment Works in Connecticut

Connecticut assesses property at 70% of fair market value. Your assessed value should be 70% of what your home would sell for on the open market. If your assessment implies a market value higher than comparable sales support, you have grounds to appeal.

Risk of Increase

In Connecticut, filing a appeal can result in your assessed value being increased. This is uncommon when you have strong evidence of over-assessment, but you should be aware of this possibility. ProtestMax only recommends filing when our analysis shows a clear case for reduction.

How to File in Connecticut

File an appeal with your municipality's Board of Assessment Appeals by February 20. Forms are available at your town assessor's office or online.

Step-by-Step

Connecticut Appeal Process

1

Review your property assessment on the municipal Grand List (published October 1).

2

File an appeal with the Board of Assessment Appeals by February 20.

3

Attend the hearing and present comparable sales evidence.

4

If denied, appeal to the Superior Court within 2 months of the Board's decision.

5

Alternatively, appeal to the state CIAB (Connecticut Interlocal Assessment Board) for certain properties.

Check Your Connecticut Property Free

Enter your address and we pull your assessment, find comparable sales, and tell you if protesting is worth it — in 60 seconds.

FAQ

Connecticut Property Tax Appeal Questions

How does the 70% ratio work in Connecticut?

If your home's fair market value is $400,000, the assessed value should be $280,000 (70%). Your tax bill is this assessed value multiplied by your town's mill rate. If the town overvalues your home at $450,000, you pay taxes on $315,000 instead of $280,000.

Can my Connecticut assessment increase on appeal?

Yes. The Board of Assessment Appeals can increase your assessment. However, this is rare when you present strong evidence of over-assessment.

How often does Connecticut reassess?

Connecticut requires municipalities to conduct a revaluation at least every 5 years. Some towns do physical revaluations while others use statistical revaluations.