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Connecticut is legally clean but small, so it’s a later addition.
The law and the data both work here. Nothing in the law blocks an appeal here. It’s limited by size and by fragmented town-by-town administration rather than by any legal problem.
So Connecticut decides these on market value, which means the evidence is recent sales of genuinely comparable homes. What really matters is whether that whole set of sales sits below your assessed value. If they bracket your assessment instead of falling under it, boards usually side with the assessor, because nothing's been clearly disproved.
Now a few things lose almost everywhere. Comparing your assessment to a neighbor's assessment usually doesn't count where the argument's market value. One sale on its own can pretty easily be dismissed as an outlier. And the size of your increase, or the size of your bill, isn't really evidence about what your home's worth.
Deadlines here are set locally rather than by one statewide date, so the one that binds you is printed on your own assessment notice.
And that notice is really the thing to go find today, honestly. It's what starts your clock, it's usually a much shorter window than people expect, and there's no getting it back once it's gone.
First, look up your own record. Your town assessor sets your value, which is 70 percent of market value as of your town's last revaluation. Towns revalue every five years, so the year right after a revaluation is when most appeals happen.
Next, know where to file. You can meet the assessor informally first, but the formal appeal goes in writing to your town's Board of Assessment Appeals by February 20. Some towns extend that to March 20, but don't count on it unless your town says so. If you disagree with the board, you've got two months from its decision to appeal to Superior Court.
Then bring the evidence that wins here. You can argue from sales of genuinely similar homes, or from what comparable homes in town are assessed at. Divide your assessment by 0.7 to see the market value the town's really claiming.
Also, check your exemptions. If you're 65 or older or totally disabled and under the income limit, the state's circuit breaker credit is worth up to $1,000, or $1,250 for a married couple. You apply with your town assessor between February 1 and May 15, and many towns offer their own senior relief on top.
We only turn a state on once we've read its appeal rules and its actual board decisions, because that's how we make sure what we tell you is right and not generic. It takes a few days per state, and honestly it's the reason our answers are worth anything.
In the meantime our free check runs in parts of Illinois, Washington, Ohio, Georgia, Colorado, North Carolina and Oregon, and in every town in New Jersey. If you leave your email on the check page, we'll write to you the day Connecticut goes live, and we won't email you before that.
We've screened all fifty states and DC on the same two questions. Does winning a lower market value actually lower your bill, or is there a cap sitting in between? And can you even put the evidence together from public records?
This comes from our own fifty-state screen, where we checked each state's cap, whether sale prices are public, whether there's an argument based on assessed values, and how many appeals actually get filed. Where we've quoted an appeal count, it's from the state or county that published it. If you spot an error, please write to hello@propertytaxbuddy.com and we'll correct it and say what changed.