StacyApproved · property tax deadlines by county

Property tax deadlines in Maine

All 16 Maine counties and county equivalents. 0 have been checked against the county's own schedule; the rest follow the state schedule below.

Maine statutory schedule
InstalmentDueNotes
2nd halfMarch 16, 2027Common mid-March second installment for the July 1–June 30 municipal year; the town's vote controls.
1st halfSeptember 16, 2027No statewide date: each municipality votes its own, and mid-September is the most common first installment.
legislature.maine.gov Interest runs from the day after each due date at the rate the municipality voted, capped by the maximum the State Treasurer sets each January.

Counties

Androscoggin County Statewide schedule · Mar 16, 2027Aroostook County Statewide schedule · Mar 16, 2027Cumberland County Statewide schedule · Mar 16, 2027Franklin County Statewide schedule · Mar 16, 2027Hancock County Statewide schedule · Mar 16, 2027Kennebec County Statewide schedule · Mar 16, 2027Knox County Statewide schedule · Mar 16, 2027Lincoln County Statewide schedule · Mar 16, 2027Oxford County Statewide schedule · Mar 16, 2027Penobscot County Statewide schedule · Mar 16, 2027Piscataquis County Statewide schedule · Mar 16, 2027Sagadahoc County Statewide schedule · Mar 16, 2027Somerset County Statewide schedule · Mar 16, 2027Waldo County Statewide schedule · Mar 16, 2027Washington County Statewide schedule · Mar 16, 2027York County Statewide schedule · Mar 16, 2027

About Maine property tax

Maine property tax is billed and collected county by county, so the collector — not the state — issues the bill. Maine sets no default dates at all: each town and city votes its own due dates, interest start date and rate, so September 15 and March 15 are only a common pattern.

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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.