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

Complete
Ireland → Pittsfield, Berkshire County, Massachusetts, United States
Item Name Destination Amount Conditions
Meal & Lodging Boston, USA 336.5 USD per night Overnight rate covering accommodation and three meals for a 24-hour absence abroad on official business.
Vouched Accommodation (VA) Rate Boston, USA 168.25 USD per night Vouched Accommodation (VA) rate: paid in addition to the vouched cost of accommodation. Per Note 2 of Circular 07/2017 the VA rate should not be routinely used except for travel to Brussels, where the vouched cost of room plus the VA rate applies to all officers on overnight visits.
Daily allowance Boston, USA 112.17 USD per day Ten-hour rate: applies to an absence abroad of ten hours or more without an overnight stay.
Daily allowance Boston, USA 56.08 USD per day Five-hour rate: applies to an absence abroad of between five and ten hours.
Meal & Lodging Massachusetts, USA 72 USD per night Paid in addition to the vouched cost of room; the amount shown is the supplement covering remaining meals and expenses for a 24-hour absence abroad on official business.; State-wide rate for Massachusetts from the 'USA - States' section of Circular 07/2017 Appendix 2.
Vouched Accommodation (VA) Rate Massachusetts, USA 72 USD per night Vouched Accommodation (VA) rate: paid in addition to the vouched cost of accommodation. Per Note 2 of Circular 07/2017 the VA rate should not be routinely used except for travel to Brussels, where the vouched cost of room plus the VA rate applies to all officers on overnight visits.; State-wide rate for Massachusetts from the 'USA - States' section of Circular 07/2017 Appendix 2.
Daily allowance Massachusetts, USA 48 USD per day Ten-hour rate: applies to an absence abroad of ten hours or more without an overnight stay.; State-wide rate for Massachusetts from the 'USA - States' section of Circular 07/2017 Appendix 2.
Daily allowance Massachusetts, USA 24 USD per day Five-hour rate: applies to an absence abroad of between five and ten hours.; State-wide rate for Massachusetts from the 'USA - States' section of Circular 07/2017 Appendix 2.

Source URL:
https://www.revenue.ie/en/employing-people/documents/dper-circular-07-2017-subsistence-allowances-abroad.pdf
This source provides official travel rate information from revenue.ie.