Look up per diem reimbursement rates and mileage deductions for business travel worldwide.

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United States → Portsmouth, Rockingham County, New Hampshire, United States
Item Name Destination Amount Conditions
Lodging Portsmouth, NH 171 USD per night Seasonal from October 1, 2025 – October 31, 2025; GSA non-standard area defined as: Rockingham.
Lodging Portsmouth, NH 129 USD per night Seasonal from November 1, 2025 – June 30, 2026; GSA non-standard area defined as: Rockingham.
Lodging Portsmouth, NH 192 USD per night Seasonal from July 1, 2026 – August 31, 2026; GSA non-standard area defined as: Rockingham.
Lodging Portsmouth, NH 171 USD per night Seasonal from September 1, 2026 – September 30, 2026; GSA non-standard area defined as: Rockingham.
Meals and incidentals Portsmouth, NH 74 USD per day GSA non-standard area defined as: Rockingham.; On the first and last day of travel, federal travelers receive 75% of the daily M&IE rate.

Source URL:
https://api.gsa.gov/travel/perdiem/v2/rates/conus/lodging/2026
This source provides information on travel rates in the United States.