Penobscot County, MaineProperty records & tax offices
Links open the listed public-office or service-provider website in a new tab. This directory does not collect payments.
Find the right property record
Use the property portal for ownership and assessed value, the collector for a bill or balance, and the map for parcel location. Have the address, owner name, or parcel number ready.
Tax bills & filing dates
These are the dates and qualifications recorded in the directory. Confirm your tax year and current deadline with the official office and your property’s notice.
- Assessment appeal
- Within 185 days after the local municipality's 2026 commitment date under Maine property-tax abatement/appeal law; no countywide date is published because assessments and appeals are municipal.
Exemptions & appeals
View exemption application (opens in a new tab)Exemption filing
April 1, 2026, filed with the municipality where the homestead is located; a late application generally applies to the next tax year.
Senior relief
Maine State Property Tax Deferral Program: the 2026 filing period was January 1-April 1, 2026, for qualifying homeowners age 65+ or qualifying disabled homeowners subject to statutory ownership, occupancy, and income conditions; municipalities may also adopt separate senior deferral programs under 36 M.R.S. chapter 908-A.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.