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Abatements
Address Change Request (PDF)
Elderly & Disabled Tax Deferral Application
Exemptions & Tax Credits Information
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Londonderry Application for Commercial / Industrial Tax Exemption (PDF)
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Tax Rates & Equalization Ratios
Town Assessments - Online Lookup
2025 Revaluation
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Departments
Assessing
Tax Rates & Equalization Ratios
Tax Rates & Equalization Ratios
Year
Tax Rate
Ratio
Document
2025
$14.47
2025 (PDF)
2024
$16.14
85.3%
2024 (PDF)
2023
$15.65
90.3%
2023 (PDF)
2022
$18.48
77.3%
2022 (PDF)
2021
$18.38
92.9%
2021 (PDF)
2020
$20.11
92.2%
2020 (PDF)
2019
$19.39
98.1%
2019 (PDF)
2018
$21.80
85.1%
2018 (PDF)
2017
$21.61
89.6%
2017 (PDF)
2016
$21.50
95.8%
2016 (PDF)
2015
$21.02
99.9%
2015 (PDF)
2014
$21.09
102.3%
N / A
2013
$21.10
111.3%
N / A
2012
$20.50
114.8%
2012 (PDF)
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