Unfortunately, you cannot obtain a Vietnam visa using an online service. However, what you can do is apply for an approval letter which will make things easier when you are planning a trip to Vietnam. The approval letter will allow you to get a pre-approved visa when you arrive at the destination. Even if it is not a visa per se, it can still save you some time that you would otherwise have to spend at the Vietnamese embassy in your country of origin.
The principle behind the visa approval letter is quite simple. You apply for the approval letter using the online service put at your disposal by iVisa. Once you receive the approval letter, you can travel to Vietnam. Upon arrival, you will receive the visa once you pay the requested fees. However, keep in mind that visa approval letters are accepted only at airports, and the Government of Vietnam makes all the decisions. iVisa is in no way affiliated with the Department of Immigration.
The required documents are put into two categories. The first category consists of documents you need when you apply for the visa approval letter. You need a valid passport that will remain valid at least six months from your date of arrival in Vietnam, a credit/debit card or a Paypal account, and you will also be asked to answer a set of personal questions. The second category consists of documents you need to have on you when you enter Vietnam. They are as follows: the printed Vietnam approval letter, two photos of yourself (4 x 6 cm or 3 x 4 cm), the original passport, and you also need to pay the additional visa fee for the Vietnam visa. You can pay that fee at the office of immigration at the airport.
Not all approval letters are the same. You can choose from single entry approval letters to multiple entries. The validity of the approval letter also differs, from 30 days to an entire year. Last but not least, you can apply for a 30-day evisa right from the start. It depends on the reason for which you are going to Vietnam. As you may have guessed, the fees differ as well. To be honest, the costs are not very high. Given the fact that you can do all that you have to do from the comfort of your home, the prices are not high at all. Another factor that establishes the price for the approval letter you want or need is the processing time. Depending on which approval letter you want, the processing time can last from 5 business days (single entry, 30-day evisa) to 3 hours (all approval letters with Super Rush Processing time). If you are lucky, you can find a Vietnam evisa promotion code online. That will cut up to 20% of the fee.
Even if you cannot get a Vietnam visa online at the moment, surely the approval letter will make things easier for you.
You are no longer required to visit the Vietnamese embassy in your country, which can save you quite some time in your busy schedule. Also, nobody likes standing in line, which makes iVisa a highly appreciated online service.