Waterbury's 2026 Property Revaluation Program Sets Timeline for Updated Tax Bills

The Waterbury city government has set the schedule for its 2026 property revaluation program, which will update assessments for all residential and commercial parcels by the end of this year. The mayor's office released the phased timeline after the Board of Aldermen approved the measure on June 22. Residents in every neighborhood will receive mailed preliminary notices between October and December.

The revaluation follows the state-mandated five-year cycle last completed in 2021. City records show that assessed values have not kept pace with recent sales data in the East End and North End sections. The new figures will determine property tax liabilities starting with the January 2027 billing cycle.

Changes for Waterbury Homeowners

Property owners in the Downtown and Brooklyn sections can expect the largest shifts because recent deed transfers there have exceeded prior assessed values by an average of 22 percent. A homeowner whose parcel was assessed at $180,000 in 2021 may see a new figure near $220,000 once the review is finished. Commercial buildings along Thomaston Avenue will also receive updated valuations before the next fiscal year begins.

The city budget document for fiscal year 2027 lists the revaluation as the main driver of a projected $2.4 million increase in the property tax levy. That total is spread across roughly 28,000 taxable parcels. The finance department has stated that the mill rate itself will remain unchanged at 38.45 unless the Board of Aldermen votes otherwise in November.

Next Steps in the Rollout

Appeals will open on January 15, 2027, and run through March 31. The assessor’s office has scheduled four public information sessions at the Silas Bronson Library beginning in September. Final tax bills reflecting the new assessments are scheduled to arrive in mailboxes by the second week of January 2027.