Equalization
Equalization is a process carried out annually by municipalities and the New Hampshire Department of Revenue Administration (DRA) to ensure common property tax burdens are apportioned fairly and equitably among taxpayers. Through the equalization and ratio study processes, the total equalized valuation of each municipality is determined and used to apportion county taxes, cooperative school taxes, if applicable, and the state education property tax.
Reference Documents
The Equalization Manual provides an overview of the ratio study procedures and equalization process.
Forms
Reports by Year
Each year the Equalization Bureau compiles information provided by municipalities on the MS-1, Summary Inventory of Valuation and using statistics from the ratio study, equalizes the value of each municipality for the equitable apportionment of taxes.
2022 || 2021 || 2020 || 2019 || 2018
DRA Assessment Web Portal
The process of equalization includes conducting ratio studies to determine the assessment to fair market value ratio for each taxing jurisdiction by reviewing all sales from a period of October 1 through September 30 of the following year to determine arms’ lengths transactions and verifying the selling price and assessed value for each property. The DRA Assessment Web Portal is used by both municipalities and the DRA to conduct the ratio study process and to submit the MS-1, Summary of Inventory Valuation.
DRA Assessment Web Portal at https://ratiostudy.org/. The portal requires a username and password. If you do not have an account, you may request one by contacting Axiomatic Support at support@axiomnh.com or by submitting a support ticket in the Portal.
DRA Assessment Web Portal Support at https://support.axiomnh.com/support/. Help documentation relating to the ratio study and MS-1 processes.
Online training webinars may be offered throughout the year. You can sign up for available upcoming sessions at https://training.axiomnh.com/. If no sessions are currently scheduled, you can access recordings of past sessions below:
- Assessment Web Portal New User Webinar: In-depth introduction to the portal and the verification process, intended for new users.
- Assessment Web Portal Refresher Webinar: Overview of the portal, intended for returning users.
- Assessment Web Portal MS-1 and MS-1V Webinar: Completing the DRA's "MS-1, Summary of Inventory Valuation" including a discussion of the XML import process.
Statutes and Administrative Rules
Applicable statutes and rules can be found on the Departments Laws and Rules page under the topics Property and Administratively Attached Boards