City mailing value change notices to 993 properties

posted on 10/31/2025

The City of Dover’s Tax Assessment Office is mailing property value change notices to 993 city property owners for tax year 2025, which is expected to be delivered to mailboxes this week.

The assessment office did not conduct its annual city-wide real estate market conditions statistical revaluation this year. This is because the current valuation for most city properties maintains compliance with assessing standards, and it ensures a cleaner transition to the city’s new computer-assisted mass appraisal (CAMA) system. The value change notices being mailed are for property-specific updates.

The City Assessor estimated a 5% market increase in real estate property values for tax year 2025 (fiscal year 2026). The assessor also determined that not changing values would maintain an 89-90% equalization ratio, meeting assessing standards. As stipulated by state law, property valuations reflect market conditions as the property existed on April 1, the first day of the tax year.

The complete list of Dover’s property assessments for tax year 2025 (fiscal year 2026) is available online. These property assessments will be reflected in the 2025 property tax bill, which will be sent to property owners after the city’s tax rate is certified by the New Hampshire Department of Revenue Administration.

Property owners may appeal their tax year 2025 property tax assessment following the issuance of tax bills later this year by filing an abatement application with the Tax Assessment Office by March 1, 2026. Please note: filing an abatement application does not stay the collection of taxes, and taxes should be paid as assessed. If an abatement is granted, the city will issue a refund with interest.

For more information about property assessments, contact the Tax Assessment Office at 603-516-6014 or visit its website or office at City Hall. The office is open Monday through Thursday, from 8:30 a.m. to 5:30 p.m. and Fridays from 8:30 a.m. to 4 p.m.