Welcome to the Town of Derry, NH Assessors database.

The online database is updated the first of each month.  The Town recently completed a revaluation for the 2022 tax year. Values assessed are effective as of April 1st to reflect the fair market value for that tax year.  Please note that the tax rate will be adjusted in October.  DO NOT USE the current tax rate to estimate your taxes.  An increase in town-wide valuation generally results in a decrease of the tax rate. 

Every year the Town of Derry Assessing Department monitors qualified sales and the real estate market in general in Derry.  The Assessor’s Office does this to make sure that current assessments are close to 100% of full, fair market value as required by the State of New Hampshire Department of Revenue administration. 

Last Revaluation: 2022

2021 Equalization Ratio: 79.1%

2020 Equalization Ratio: 94.4%

2019 Equalization Ratio: 89.1%

2018 Equalization Ratio: 95.4%

If you have any questions please feel free to call the Assessing Department, 14 Manning Street, Municipal Center, Derry, NH 03038 at 603-432-6104.