Connecticut Property Tax Appeals: February 20 Deadline

How Connecticut Property Tax Appeals Work

In Connecticut, your town assessor values your property as of the October 1 grand list date, and the town Board of Assessment Appeals hears appeals in March. If the board does not give you the relief you want, the next step is the Superior Court for your judicial district. The process runs on a short winter calendar, so the key dates come early in the year. The Connecticut Judicial Branch's law library points to Sections 12-111, 12-113 and 12-117a as the core statutes. Connecticut General Statutes, Chapter 203 Connecticut Office of Legislative Research, Appealing Real Property Tax Assessments Connecticut Judicial Branch, Property Tax Appeals

The Deadline: February 20

Anyone claiming to be aggrieved by the doings of the assessors may appeal to the board of assessment appeals. The appeal must be filed in writing or by email, in the manner the board prescribes, on or before February 20. The statute adds that no appeal will be heard unless it is made by that date (appeals on motor vehicle assessments follow a September schedule). The Office of Legislative Research summarizes the same February 20 date for real property. CGS 12-111 and 12-112, Chapter 203 Connecticut Office of Legislative Research

February 20, 2027 falls on a Saturday. Do not count on the weekend. File by Friday, February 19, and keep proof of how and when you sent it. A town's chief executive can extend the hearing timeline by up to a month, or up to two months after a revaluation, which moves the request deadline to March 20, so check with your town's assessor for any extension. Connecticut Office of Legislative Research

What Your Appeal Must Include

The statute lists the minimum contents: your name, the name and position of the signer, a description of the property, the name, mailing address and email address of the person who gets correspondence, the reason for the appeal, your estimate of value, the owner's signature (or a duly authorized agent's) and the date. CGS 12-111, Chapter 203

The Hearing

The board must notify you of the date, time and place of the hearing no later than March 1, at least seven calendar days before the hearing. The statute lets the board skip the hearing only for commercial, industrial, utility or apartment property assessed above $1 million. The hearings are generally held in March and decided by the last business day of March. Connecticut General Statutes, Chapter 203 Connecticut Office of Legislative Research

Show up. The statute says the board shall not reduce the assessment of anyone who does not appear at a hearing, in person or through an attorney or agent, and offer or consent to be sworn and answer questions about their taxable property in the town. CGS 12-113, Chapter 203

If the Board Says No: Superior Court

Under CGS 12-117a, a person aggrieved by the board's action can apply to the Superior Court in the judicial district where the town is situated not later than two months after the date of the mailing of notice of the board's action. While the appeal is pending, the town may keep collecting up to 75 percent of the tax, or up to 90 percent for real property assessed at $500,000 or more. Applications made on or after July 1, 2022 for real property assessed at $1 million or more require you to file an appraisal with the court within 120 days of making the application. CGS 12-117a, Chapter 203

Where the Windows Stand Now

Connecticut's next window is February 20, 2027, a Saturday, so plan on February 19. The three county guides below show the date with a live countdown once it is inside 60 days. Your town will publish its own filing instructions. Start your evidence now so you are not scrambling in February.

Where Grove Hopper Fits

Grove Hopper is a research tool. We look at your property, flag whether it looks over-assessed and prepare your appeal documents. You review, sign and file them with your town's Board of Assessment Appeals yourself. We are not attorneys, accountants or a tax firm. The free check is at the top of this page.

Pick your county below for its towns and filing details.