Upvote:-1
If you hold US passport, you can apply for 1 year multiple entry visa on arrival. However, with 1 year multiple entry TOURIST visa you can stay in Vietnam for 90 days each visit then you will need to do visa run or visa extension. 1 year multiple entry BUSINESS visa give you permission to stay in the country 1 year continuously. http://www.visumvietnamonline.com/blog/vietnam-1-year-tourist-visa-for-united-states-citizens-from-august-2016/
Upvote:1
There is no 1 year visa on arrival friend. You have to collect it directly at the embassy. You make application online through an agent and they will arrange a visa approval for you. You then carry the letter to embassy, pay some stamping fee and get your visa stamp. That's the process. Source: http://www.vietnamvisa-easy.com/pages/vietnam-business-visa