| Tax Collector, 1 Junkins Avenue, Portsmouth, NH 03801, Tel:(603) 610 - 7244, Fax: 603) 431-6402 | Tax Collector Home   Vehicle Registration Info   City Home   Online Property Tax Calculator Enter your Assessed Property Value in dollars - Example: 254700 Enter as a whole number without spaces, dollar sign or comma. Enter your 2007 Assessed Property Value = $ 2007 Taxes = $ Please Note: The property tax calculated does not include any exemptions (elderly, veterans, etc.) that you may be entitled to. Click here to search the 2007 Property Values Important Information: The 2007 tax rate is $16.34 per thousand dollars of valuation. << Return