Coos County, NH follows the New Hampshire 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.
| Instalment | Due date | Notes |
|---|---|---|
| Annual bill | December 2, 2026 | Interest starts on taxes unpaid after December 1 following assessment. |
| First half | July 2, 2027 | Towns that adopt RSA 76:15-a also collect a July 1 partial payment, with the balance due December 1. |
Unpaid tax bears interest at 8% per annum from the delinquency date, and the town may place a tax lien on the property.
The collector must mail bills within 30 days of receiving the tax list, so most bills arrive in the fall ahead of the December 1 due date.
Not yet. Coos 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 New Hampshire statutory schedule above is the reliable starting point.
See all New Hampshire counties, or every upcoming deadline we track. If the bill is already a problem, read what happens if you don't pay and how to appeal an assessment.
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.