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

Complete
Ireland → Mie, Japan
Item Name Destination Amount Conditions
Meal & Lodging Osaka, Japan 26807.5 JPY per night Overnight rate covering accommodation and three meals for a 24-hour absence abroad on official business.
Vouched Accommodation (VA) Rate Osaka, Japan 13403.75 JPY 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 Osaka, Japan 8935.83 JPY per day Ten-hour rate: applies to an absence abroad of ten hours or more without an overnight stay.
Daily allowance Osaka, Japan 4467.92 JPY per day Five-hour rate: applies to an absence abroad of between five and ten hours.
Incidentals Nagoya, Japan 10 EUR per day Actual-cost destination (Note 1, Circular 07/2017): the overnight rate is the vouched cost of accommodation and three meals, the ten-hour rate is the vouched cost of two meals and the five-hour rate is the vouched cost of one meal, in each case plus this incidental expenses allowance of EUR 10 per day.
Meal & Lodging Tokyo, Japan 29672 JPY per night Overnight rate covering accommodation and three meals for a 24-hour absence abroad on official business.
Vouched Accommodation (VA) Rate Tokyo, Japan 14836 JPY 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 Tokyo, Japan 9890.67 JPY per day Ten-hour rate: applies to an absence abroad of ten hours or more without an overnight stay.
Daily allowance Tokyo, Japan 4945.33 JPY per day Five-hour rate: applies to an absence abroad of between five and ten hours.

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.