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Knox County Property Tax Due Date

Maine

2026 Property Tax Due Dates

Installment 1

Varies by town

First installment (Oct-Nov typical)

Installment 2

Varies by town

Second installment (Mar-Apr typical)

Penalty: Interest accrues day after due dateGrace period: None

Payment Methods

Online, Mail, In-Person

Knox County Treasurer

How to Pay

Online

Pay using credit card or e-check

By Mail

Mail check payable to Knox County Treasurer

In Person

Visit the Treasurer's office

About Knox County

Knox County is a county located in the state of Maine, United States. As of the 2020 census, the population was 40,607. Its county seat is Rockland.

Source: Wikipedia — content available under CC BY-SA 4.0

Get Deadline Reminders

We'll email you 20,160 minutes before your property taxes are due.

Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.