DENOMINATIONS IN CIRCULATION
Denominations in circulation (the images from Wikipedia, for reference only, We don’t mention the denomination of 200 VND because it is rarely used)
Avoid confusion of denominations with quite similar looks and colors as 10 000 VND vs 200 000 VND, 20 000 VND vs 500 000 VND.
Five hundred thousand Dong is the largest denomination now, it’s worth approximately US $ 22 (based on the exchange rate in 2019).
You can consult rates via this website
You need to carefully check the change and limited carrying large cash.
Cards are widely accepted in restaurants, hotels and other public amenities (but not at street-food stalls) and ATMs are placed densely. The most popular exchange rate when travelling in Vietnam is from USD to VND. It is known among travellers that the best exchange rate is given at jewelry shops, however, it is now considered illegal to exchange currency at those shops. So, the best way is to change money at the airport, local banks or ATMs.