Hampden County property tax appeal 2027: deadline, forms and how to file
To appeal a Hampden County assessment, file with the Board of Assessors; in Massachusetts the deadline is the due date of the first actual tax bill installment, generally February 1. Confirm the exact date on your notice or with the assessor; we add each county's 2027 date here when it is published.
Data as of 20 Oct 2026 · the Hampden County assessorCheck your own assessment
Free. We compare the value on your notice with recent sales of similar homes nearby and tell you whether an appeal is worth filing. Have your assessment notice and tax bill handy.
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How to file in Hampden County
- Step 1
File the appeal
Use the method your notice lists, by the deadline on the notice.
- Step 2 · before the hearing
Prepare and submit your evidence
Comparable assessed values, photographs of condition issues and recent sales where they are public. Ask the appraisal office for the evidence it will use.
- Step 3
Meet, then hear
An informal review usually comes before a formal hearing; most reductions happen at the informal stage.
Before you file: how to read your notice · evidence that works · informal vs formal hearing · when not to appeal
Hampden County questions
Data as of 20 Oct 2026 · Massachusetts statutesWhen is the property tax appeal deadline in Hampden County?
Massachusetts law sets it: Due date of the first installment of the actual tax bill: generally February 1 where bills are quarterly, about 30 days after mailing where semi-annual (G.L. c.59 §§57, 57C, 59). ATB appeal within 3 months of the assessors’ decision or deemed denial (§§64, 65). Confirm the exact date on your notice or with the assessor.
Who hears a appeal in Hampden County?
The Board of Assessors hears the first appeal. Filing rules: G.L. c.59 §59 (assessors); §§64, 65 (Appellate Tax Board).
What value should I compare on my Massachusetts notice?
Massachusetts notices often do not show a market value; compare the assessed value (“Assessed Value”) with what similar homes sold for, as of January 1 before the July 1 fiscal year (G.L. c.59 §2A(a)).
Check whether yours is over-assessed
Nearby counties
Hampshire County · Franklin County · Berkshire County · Worcester County · Middlesex County · Norfolk County · Bristol County
- G.L. c.59 §59 (abatement application)
- G.L. c.59 §2A (January 1 valuation, full and fair cash valuation)
- G.L. c.59 §38
- G.L. c.59 §64
- U.S. Census Bureau, county population estimates (2024) and county gazetteer (2024).