There are 12 types of banknotes, 100, 200, 500, 1,000, 2,000, 5,000, 10,000, 20,000, 50,000, 100,000, 200,000 and 500,000 dong.
Coins are hardly circulated.
In Vietnam, “k” is written in the price notation such as “10k”. 10k means 10,000 dong, so it is only necessary to follow three zeros.
(A major taxi company can also use a credit card.)
The money changers at the airport often have very poor rates, so it is recommended that you keep the currency exchange to a minimum. Taxi fare to the city center is less than 1,000 yen. (130,000 ~ 200,000VND)
Please check the unit of money when you change money. It is difficult to understand if you are not used to it because of the large number of digits.
Wherever you change money, make sure you have money in front of the person who gave it to you before you put it in your wallet.
If you later realize that the amount was small, you will not be refunded.
Please refer to this URL to see the bank rate for the day.
Be careful when using ATMs in local areas. Do not use ATMs in the dark due to dangers such as snatching.