After the pandemic, there are some significant changes in the Immigration rules. Accordingly, the visa on arrival service is not available at the moment. Travelers are suggested to apply the E-visa instead.
Travelers are required to have travel insurance that provides coverage for Covid-19 treatment at least 10,000 USD. You can choose to buy travel insurance on your visa application.
For E-Visa: The stamping fee is already included in your visa application.
For Visa On Arrival: The visa stamping fee is the fee that travellers need to pay at a Vietnam airport to get the official Vietnam visa stamped in their passports. The stamping fee is $25 USD for a single-entry visa between one to three months, and the stamping fee is $50 USD for a multiple-entry visa between one to three months. Note that travellers must pay the stamping fee in cash using either Vietnam dong or U.S. dollars. The immigration officials at the airport do not accept credit cards, and it may be difficult to find an ATM.