Visa Processing Just a couple steps fill in Vietnam visa online form; you're confident to have Vietnam visa approval on your hand. Overstaying your Vietnamese visa without authority is a serious issue and you might be delayed from travel until a fine is paid. In order to apply for business visa, in addition to the documents required for tourist visa (details above), you need to offer the following additional documents (other documents may be requested): (1) Invitation letter; (2) Flight booking. From November 2015, British nationals who are spouses or children of Vietnamese citizens can apply for a visa exemption certificate. However, you can apply for a visa on arrival online at this link: https://booking.greenvisa.io/ for the acceptance letter which you can use for Visa directly at the airport as soon as you arrive. With the Vietnam E-visa all qualified travelers can enter Vietnam once and stay for a maximum of thirty (30) consecutive days. For visits that are longer than 30 days, you have to get a visa from your nearest Vietnamese embassy before traveling to Vietnam. And you can apply visa on arrival at our website; your visa will be valid for 30 days from the arrival date you apply with us. After you cover us, the visa approval letter from Vietnam Immigration will be sent to your email within 2 working days (for tourist visa). Then you can publish this letter out and use it to get business visa in Vietnam airport when you arrive. Right now, we have not still received any information from Vietnam Immigration this Vietnam visa exemption has been extended or not. First of all, the entire process for Vietnam visa on arrival takes you just two working days and even a 2 - 4 working hours in case of emergency.