Portsmouth, New Hampshire Sales Tax Calculator (2026)

0.00% total combined rate — includes state and local taxes.

Portsmouth has no sales tax, making it a top destination for regional shoppers.

Portsmouth Sales Tax Calculator

Enter a purchase amount — we’ll calculate the total with Portsmouth’s tax rate.

Rate
0.00%
Tax
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The current combined rate for Portsmouth is 0.00%.

Portsmouth Sales Tax Breakdown

  • State Rate: 0.00%
  • City Rate: 0.00%
  • County Rate: 0.00%
  • Special Rate: 0.00%
  • Total: 0.00%

About Portsmouth

Portsmouth’s retail stores benefit from New Hampshire’s 0% sales tax, attracting visitors from across New England.