Strafford County Treasurer & Tax Collector Office

Find Strafford County New Hampshire treasurer, tax collector, tax assessor, and property assessor offices. Treasurers and tax collectors provide information on property searches, tax bills, property liens, tax assessed values, and deductions.


Barrington Tax Collector 41 Province Road Barrington NH 03825 603-664-2230


Middleton Tax Collector 182 Kings Highway Middleton NH 03887 603-473-2134

Milton Tax Collector 424 White Mountain Highway Milton NH 03851 603-652-4501

Rochester Tax Collector 19 Wakefield Street Rochester NH 03867 603-332-1136

Strafford County Tax Collector's Office PO Box 799 Dover NH 03821 603-742-1458

Treasurer & Tax Collector Offices by City

About Treasurer & Tax Collector Offices

What forms of payment are accepted by Tax Collectors?

Tax Collectors will generally accept cash, personal checks, and credit card payments. Many will also offer online payments using electronic checks, credit cards, or PayPal. It is common for a convenience charge to be added to online payments.

What are special assessments?

Special assessments are additional charges on a property, which are usually associated with a public improvement that benefits certain property owners, such as a sewer assessment. Special assessments are usually added to the owner's property tax bill.

What are supplemental tax bills?

Supplemental tax bills are additional property tax bills that result from a re-appraisal of a property, usually because of a transfer of ownership or a physical improvement or expansion to the property. If the reappraisal determines that additional taxes are owed, a supplemental tax bill is issued.