Worried your Mount Washington property tax bill is too high?
Your tax bill starts with your assessment. Run a free check to see whether your Mount Washington home may be over-assessed — and if the numbers suggest a real issue, continue to a guided abatement packet.
Free check. No account. No payment required.
Mount Washington assessments by the numbers
How Mount Washington assesses residential property, from 2026 records.
Informational statistics from public assessment and sales records, after setting aside nominal family/trust transfers and statistical outliers. Not an appraisal, a determination of market value, or a promise of any tax change. Figures reflect the latest data snapshot and may be out of date.
Reviewing your Mount Washington assessment
In Massachusetts, your property tax bill is your assessed value multiplied by your town’s tax rate. In Mount Washington, the median residential assessment of $436,000 at the FY2026 rate of $5.97 per $1,000 works out to roughly $2,600 a year — so an assessment even 10% above where it should be is real money, every year it stands. Assessors are required to assess at fair cash value as of January 1 each year; if your assessment jumped, your record card looks inaccurate, or comparable homes nearby are assessed lower, it can be worth a closer look before the filing window closes.
What the free check and packet help you do
- See whether your assessment appears high
- Estimate the possible impact on your tax bill
- Compare against similar Mount Washington homes
- Organize property record-card details and possible issues
- Prepare a comparable-sales worksheet and evidence checklist
- Prepare a ready-to-sign Form 128 and questions for the assessor
Official Mount Washington resources
- Board of AssessorsFind the Mount Washington assessor
- Abatement formMassachusetts State Tax Form 128 (PDF)
- Abatement deadlineTypically February 1 (the due date of the fiscal-year third-quarter actual tax bill) for quarterly-billed municipalities — verify the exact date with the town.
Mount Washington property tax questions
What is the residential property tax rate in Mount Washington, MA?
Mount Washington's FY2026 residential tax rate is $5.97 per $1,000 of assessed value, per Massachusetts DLS data. Verify the current rate on your actual tax bill.
What is the median home assessment in Mount Washington?
The median residential assessment in Mount Washington is about $436,000 (roughly $237 per square foot), across 147 residential parcels in the public assessment records.
How much is the typical Mount Washington property tax bill?
At the FY2026 rate of $5.97 per $1,000, the median Mount Washington assessment of $436,000 implies a tax bill of roughly $2,600 per year, before any exemptions.
When is the deadline to challenge a Mount Washington property assessment?
In most Massachusetts towns the abatement application is due on or before the date the first actual (non-preliminary) tax bill is due — typically February 1 for quarterly-billed municipalities. Verify the exact date with the Mount Washington assessors.
How do I appeal my Mount Washington property tax assessment?
File Massachusetts State Tax Form 128 (Application for Abatement) with the Mount Washington Board of Assessors by the deadline. Property Tax Hawk's free check compares your home with similar Mount Washington homes, and the optional $79 guided packet prepares the form and comparable-sales evidence for you to review, sign, and file.
See where your Mount Washington tax bill stands
Run a free check first. You’ll only consider the $79 guided abatement packet if the numbers suggest it’s worth it.
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