At first I confirm the information that Sanchai explain to you are correct, but I would like to share my experience to you in case we pay more that the Ministry of Finance set up:
1. Set Up the Policy how much company pay Mileage / Km to staff.
2. Set mileage in one rate only.
3. The rate that company set up should be reasonable up to current situation coz now the Fuel / lit in Thai now is very high (THB 39 – 40).
- Example if you give Mileage ( Fuel + Car maintenance) = ( 6 + 4)
4. The rate that Ministry of Finance set up was long time ago it look like more than 10years, then the important is Policy if we set the policy in case the Revenue Department random to us then we can explain to them don’t worry about that.
I had request to my friend from old company to share with me for her policy of these, if I get it I will send to you.