How Connecticut Fire Districts, Boroughs and Sewer Tax Districts Add to Your Town Mill Rate — CT Home Field Guide

Updated October 2026

A Connecticut listing's town tax figure may not capture every recurring property charge. Fire districts, boroughs and other taxing districts can issue separate bills, while sewer authorities may collect usage charges or benefit assessments that operate differently from an ordinary mill-rate tax. The parcel's actual jurisdiction determines the obligation.

Calculate mill-based taxes correctly

Connecticut's 169 towns generally assess real estate at 70% of fair market value established at the latest municipal revaluation, with revaluations generally occurring every five years. One mill equals $1 of tax for every $1,000 of assessed value.

Suppose the assessor's market value is $400,000. The assessment is $280,000. If the town charges 30 mills and an applicable fire district charges 2 mills, the calculation is:

These are illustrative rates. Exemptions, separate tax bases and non-mill charges can change the result. The Connecticut Office of Policy and Management provides background on municipal assessment and taxation.

Identify what the lender will escrow

Request every current bill tied to the parcel, not just the main town statement. July and January installments are common, but districts and sewer authorities may use different due dates.

• Confirm whether fire or borough taxes arrive separately.
• Distinguish sewer usage bills from benefit assessments.
• Ask whether an assessment has an outstanding payoff balance.
• Establish which charges the mortgage servicer will escrow.

A charge omitted from escrow still belongs in your ownership budget. Give the lender the separate bills before closing and verify the initial escrow analysis. The Consumer Financial Protection Bureau explains how escrow collections and mortgage disclosures work.

Use the monthly payment calculator with the combined annual tax burden, adding non-escrow expenses separately.

Keep recurring taxes separate from transfer taxes

Connecticut's standard residential state conveyance tax is generally seller-paid: 0.75% on the first $800,000, 1.25% on the portion from $800,000 to $2.5 million, and 2.25% above $2.5 million. Municipal conveyance tax generally adds 0.25% to 0.50%. These are transfer charges, not annual mill-rate bills.

Connecticut's required closing-attorney involvement helps coordinate title searches, tax adjustments and outstanding liens. Use the closing cost estimator to separate transfer-related charges, attorney expenses and initial escrow funding rather than combining everything into one unexplained tax allowance.