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Buyers and Sellers determine Market Value. The estimated market value of your real property is based on an analysis of the market for the full year prior to the completion of the revaluation project. Your real property’s assessment is based on its estimated fair market value at the time of revaluation (October 1, 2013).
The “Field Card” or “Assessor’s Card” contains a detailed list of the factors used for your property. All Madison field cards are available from the Assessor’s Office. A summary of your field card can be found online at
The Mill Rate will be set in May for the fiscal year 2017-2018.
The documentation given to the Board of Assessment Appeals becomes part of the official record and cannot be returned. Assessor's Office Forms
If you have any questions regarding these tax relief programs, please call the Assessor’s Office at 203-245-5652. There is also information available on the Assessor's Page.
The Board has the authority, by way of a simple majority vote, to change your assessment for a period of one year. Note that this is not a permanent change and you should not expect that it will automatically be repeated next year. In some circumstances the Assessor’s Office will, upon review of the Board’s decision, decide to change your appraisal for the remainder of the 5-year appraisal cycle. Do not assume that if you are successful in your current appeal that your assessment change will be reflected in future years.
The Board of Assessment Appeals, under Connecticut Statute has the right not only to decrease your assessment but to increase it.
Sec. 12-63d. Change in assessed value of real estate. Relationship to sale price. The assessor in any municipality may not, with respect to any parcel of real property in the assessment list for any assessment year, make a change in the assessed value of such parcel, as compared to the immediately preceding assessment list, solely on the basis of the sale price of such parcel in any sale or transfer of such parcel.