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

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United Kingdom → Kigali, RW
Item Name Destination Amount Conditions
Meals Kigali, Rwanda 11417 RWF per day Over 5 hours rate: covers subsistence expenses for a period of more than 5 but less than 10 hours, measured by reference to the times of arrival in and departure from the foreign country.
Meals Kigali, Rwanda 31917.5 RWF per day Over 10 hours rate: covers subsistence expenses for a period of more than 10 but less than 24 hours, measured by reference to the times of arrival in and departure from the foreign country.
Meals and incidentals Kigali, Rwanda 39082 RWF per day 24 hour rate: covers the total cost of meals and daily hotel-to-office travel for a full 24-hour period.; The actual room rate is paid in addition to this amount (source shows the rate as 'plus room rate').
Lodging Kigali, Rwanda 156 USD per night No specific conditions
Breakfast Kigali, Rwanda 0 RWF per meal This amount is included in the room rate, so it is not paid separately on top of the lodging rate.
Lunch Kigali, Rwanda 9452.5 RWF per meal No specific conditions
Dinner Kigali, Rwanda 18536.5 RWF per meal No specific conditions
Incidentals Kigali, Rwanda 2701 RWF per day Source row labelled 'Other': other expenses incurred during the day; employers may use the individual meal and other rates instead of the over 5 hour, over 10 hour and 24 hour rates.
Drinks Kigali, Rwanda 3928.5 RWF per day No specific conditions
Transport Kigali, Rwanda 4463.5 RWF per day Covers daily travel between the employee's hotel and office.
Total residual Kigali, Rwanda 39082 RWF per day Total residual rate: intended to cover the total cost of meals in a period of 24 hours plus the cost of daily travel between the employee’s hotel and office; the 24 hour rate is the sum of the room rate and this total residual rate.

Source URL:
https://www.gov.uk/guidance/expenses-rates-for-employees-travelling-outside-the-uk
This source provides official travel rate information from gov.uk.