Dukes County, MA follows the Massachusetts statutory schedule. This page shows that schedule, the county's own website, and the late penalty — the county can still set its own dates, so confirm before you pay.
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…until first half — November 2, 2026
Instalment
Due date
Notes
First half
November 2, 2026
Half the tax must be paid by November 1 or interest runs from the July 1 due date.
Second half
May 2, 2027
The remaining half is due May 1 of the fiscal year.
Schedule: malegislature.gov · Massachusetts statute · not yet county-verified
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Statewide schedule — read this before you rely on it
Cities and towns that adopt G.L. c.59 s.57C bill quarterly on Aug 1, Nov 1, Feb 1 and May 1, while non-adopting towns use the semiannual Nov 1 / May 1 dates. Most counties in this state follow these dates.
Unpaid tax bears interest at 14% per annum computed from the due date until paid.
Preliminary bills go out by July 1 (August 1 in quarterly towns), and the actual bill follows once the tax rate is set in the fall.
Dukes County at a glance
Population: 20,819 (Census estimate, 2023) — the 13th largest of 14 Massachusetts counties and county equivalents.
Typical tax bill: $4,970 a year (median for owner-occupied homes, ACS 2022 5-year estimate) — the Massachusetts median is $5,584.
Land area: 103.2 sq mi, about 201.7 people per sq mi.
County website:www.dukescounty.org — start here for the treasurer or tax collector page.
By post: mail to the county treasurer; the postmark usually counts, not the arrival date.
In person: the treasurer's office, with your bill or parcel number.
Escrow: if your mortgage escrows taxes, the servicer pays — you still owe any shortfall.
Is this county verified?
Not yet. Dukes County is on the queue: we publish a county's own published dates once they have been checked against the county website. Ask for it and it moves up. Until then, the Massachusetts statutory schedule above is the reliable starting point.
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StacyApproved is an independent reference and is not a government agency. Deadlines change and exceptions apply — always confirm with your county treasurer using the official link on this page. Nothing here is tax, legal or financial advice.