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

Complete
Thailand → Mejico, San Jacinto Del Cauca, Bolivar, Colombia
Item Name Destination Amount Conditions
Daily allowance All International 2100 THB per day Applies to civil servants holding General (thuapai) positions at Senior (awuso) level and below, Knowledge Worker (wichakan) positions at Senior Professional (chamnankan phiset) level and below, Director (amnuaikan) positions at primary level, or equivalent positions; military officers holding the rank of Colonel, Navy Captain or Group Captain and below; and police officers holding the rank of Police Colonel and below.; Travel time is counted from the passport exit stamp leaving Thailand to the passport entry stamp returning to Thailand; each 24 hours counts as one day and a remainder over 12 hours counts as one full day. Approved en-route time before starting and after finishing official duty may not exceed 24 hours for countries in Asia, 48 hours for Australia, New Zealand, Europe or North America, and 72 hours for South America or Africa.; Lump-sum (mao chai) per diem for temporary official travel abroad under Schedule 6 (1) attached to the Ministry of Finance Regulation on Official Travel Expense Claims (No. 3) B.E. 2565, covering meals and personal expenses; no receipts required. Chosen instead of the actual-cost option under Schedule 6 (2).
Daily allowance All International 3100 THB per day Applies to civil servants holding General positions at Highly Skilled (thaksa phiset) level, Knowledge Worker positions at Expert (chiaochan) level and above, Director positions at high level, Executive (borihan) positions, or equivalent positions; military officers holding the rank of Colonel, Navy Captain or Group Captain at the special pay rate and above; and police officers holding the rank of Police Colonel at the special pay rate and above.; Travel time is counted from the passport exit stamp leaving Thailand to the passport entry stamp returning to Thailand; each 24 hours counts as one day and a remainder over 12 hours counts as one full day. Approved en-route time before starting and after finishing official duty may not exceed 24 hours for countries in Asia, 48 hours for Australia, New Zealand, Europe or North America, and 72 hours for South America or Africa.; Lump-sum per diem for temporary official travel abroad under Schedule 6 (1) attached to the Ministry of Finance Regulation on Official Travel Expense Claims (No. 3) B.E. 2565, covering meals and personal expenses; no receipts required. Chosen instead of the actual-cost option under Schedule 6 (2).
Meals All International 4500 THB per day Actual-cost option under Schedule 6 (2.1), available to all grades when the lump-sum per diem is not elected: food and drinks including taxes and service charges levied by hotels, restaurants or shops, reimbursed as actually paid up to 4,500 THB per person per day; unused balances may not be carried over to another day.
Laundry (kha tham khwam sa-at suea pha) All International 500 THB per day Actual-cost option under Schedule 6 (2.2): laundry expenses reimbursed as actually paid up to 500 THB per person per day, only for trips exceeding 7 days; unused balances may not be carried over to another day.
Incidentals All International 500 THB per day Miscellaneous petty expenses under Schedule 6 (2.3), paid as a lump sum of up to 500 THB per person per day when the lump-sum per diem is not elected; no receipts required.
Clothing allowance (kha khrueang taeng tua) All International 7500 THB flat Lump-sum clothing allowance for temporary official travel abroad under Schedule 8 (1) for civil servants holding General positions at Operational (patibat ngan) level or Knowledge Worker positions at Practitioner (patibat kan) level or equivalent, military officers holding the rank of Major, Lieutenant Commander or Squadron Leader and below, and police officers holding the rank of Police Major and below; a spouse travelling with the official is entitled to the same rate.; Not payable for travel to the 14 countries listed in Schedule 9: Myanmar, Brunei Darussalam, Indonesia, Cambodia, Laos, Malaysia, the Philippines, Singapore, Sri Lanka, Vietnam, Fiji, Papua New Guinea, Samoa and Timor-Leste.
Clothing allowance (kha khrueang taeng tua) All International 9000 THB flat Lump-sum clothing allowance for temporary official travel abroad under Schedule 8 (1) for civil servants holding General positions at Experienced (chamnan ngan) level and above, Knowledge Worker positions at Professional (chamnankan) level and above, Director or Executive positions or equivalent, military officers holding the rank of Lieutenant Colonel, Commander or Wing Commander and above, and police officers holding the rank of Police Lieutenant Colonel and above; a spouse travelling with the official is entitled to the same rate.; Not payable for travel to the 14 countries listed in Schedule 9: Myanmar, Brunei Darussalam, Indonesia, Cambodia, Laos, Malaysia, the Philippines, Singapore, Sri Lanka, Vietnam, Fiji, Papua New Guinea, Samoa and Timor-Leste.
Lodging All Other 3100 THB per night Applies to civil servants holding General (thuapai) positions at Senior (awuso) level and below, Knowledge Worker (wichakan) positions at Senior Professional (chamnankan phiset) level and below, Director (amnuaikan) positions at primary level, or equivalent positions; military officers holding the rank of Colonel, Navy Captain or Group Captain and below; and police officers holding the rank of Police Colonel and below.; Lodging for temporary official travel abroad is reimbursed on an actual-cost basis against receipts, not exceeding this cap in THB per person per day, under Schedule 7 attached to the Ministry of Finance Regulation on Official Travel Expense Claims (No. 3) B.E. 2565.; Group Khor-Kh (ค) residual rate: applies to any foreign country, state or city not individually listed in groups Kor (ก), Khor (ข), Ngor (ง) or Jor (จ) of Schedule 7 attached to the Ministry of Finance Regulation on Official Travel Expense Claims (No. 3) B.E. 2565.
Lodging All Other 4500 THB per night Applies to civil servants holding General positions at Highly Skilled (thaksa phiset) level, Knowledge Worker positions at Expert (chiaochan) level and above, Director positions at high level, Executive (borihan) positions, or equivalent positions; military officers holding the rank of Colonel, Navy Captain or Group Captain at the special pay rate and above; and police officers holding the rank of Police Colonel at the special pay rate and above.; Lodging for temporary official travel abroad is reimbursed on an actual-cost basis against receipts, not exceeding this cap in THB per person per day, under Schedule 7 attached to the Ministry of Finance Regulation on Official Travel Expense Claims (No. 3) B.E. 2565.; Group Khor-Kh (ค) residual rate: applies to any foreign country, state or city not individually listed in groups Kor (ก), Khor (ข), Ngor (ง) or Jor (จ) of Schedule 7 attached to the Ministry of Finance Regulation on Official Travel Expense Claims (No. 3) B.E. 2565.

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https://www.dmr.go.th/wp-content/uploads/2023/03/%E0%B8%A3%E0%B8%B0%E0%B9%80%E0%B8%9A%E0%B8%B5%E0%B8%A2%E0%B8%9A%E0%B8%81%E0%B8%A3%E0%B8%B0%E0%B8%97%E0%B8%A3%E0%B8%A7%E0%B8%87%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B8%84%E0%B8%A5%E0%B8%B1%E0%B8%87%E0%B8%A7%E0%B9%88%E0%B8%B2%E0%B8%94%E0%B9%89%E0%B8%A7%E0%B8%A2%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B9%80%E0%B8%9A%E0%B8%B4%E0%B8%81%E0%B8%84%E0%B9%88%E0%B8%B2%E0%B9%83%E0%B8%8A%E0%B9%89%E0%B8%88%E0%B9%88%E0%B8%B2%E0%B8%A2%E0%B9%83%E0%B8%99%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B9%80%E0%B8%94%E0%B8%B4%E0%B8%99%E0%B8%97%E0%B8%B2%E0%B8%87%E0%B9%84%E0%B8%9B%E0%B8%A3%E0%B8%B2%E0%B8%8A%E0%B8%81%E0%B8%B2%E0%B8%A3-%E0%B8%9E.%E0%B8%A8.-2565-%E0%B8%89%E0%B8%9A%E0%B8%B1%E0%B8%9A%E0%B8%97%E0%B8%B5%E0%B9%88-3.pdf
This source provides official travel rate information from dmr.go.th.