Start with your passport, purpose, intended length of stay and travel date. Those four facts determine which official rules and application route you should check.
Four decisions before you apply
- Passport: visa exemption and document rules depend on the passport you will actually travel with.
- Purpose: tourism, meetings, paid work, study, investment and family visits may require different evidence.
- Stay and entries: confirm arrival, departure and whether you will leave and re-enter Vietnam.
- Timing and gate: processing is not guaranteed, and your intended entry gate must accept your visa route.
Use the next tool, not a guess
If you are uncertain, compare the available routes first. Do not pay or book non-refundable travel based only on a marketing label. Final eligibility and approval remain with the competent Vietnamese authority.