Does Antrim issue tax bills once or twice per year?

Antrim issues tax bills twice a year to cover the tax year of April 1 to March 31. The first bill is mailed around June 1st and is due July 1st. The second bill is mailed around November 1st and is due December 1st. The tax rate is not set until the fall of each year and is set by the State of New Hampshire Department of Revenue Administration. So the first bill you receive, in late May or early June, is an estimate using the previous year's tax rate. The second bill you receive, in November, has the new tax rate applied to the current assessed value, which is based on the status of the property as of April 1st.

Sometimes new owners incorrectly assume their annual taxes will be double their first bill. Individual property tax bills should not be looked at as being one-half the total, nor as covering the first or last 6 months of the year. To determine the correct amount of taxes for any portion of the tax year, the two bills must be added together to get the total taxes for the year, then the sum divided by 12 or 52, and multiplied by however many months or weeks you wish to cover.