Short answer: Vietnam’s 45-day exemption follows the passport you are travelling on — not your citizenship in the abstract, not where you live, not the airport you fly out of. An Irish citizen on a British passport is exempt; the same person on their Irish passport is not. If you hold two, the decision gets made at check-in, when the airline reads the document you hand over.
Ask online, we answer right awayType your question on this page. No app to install, no number to save.Ask onlineThis page is practical: which document you travel on, and what follows from it. How Vietnamese law treats dual nationality as a legal status is a separate question we do not answer here. For the wider picture, see our guide to an emergency and urgent Vietnam visa.
The pattern almost nobody writes about
Vietnam grants a unilateral 45-day exemption to 24 countries, under resolutions 44/NQ-CP (7 March 2025, in force until 14 March 2028) and 229 (15 August 2025, until 14 August 2028). Within the EU the list splits: 18 member states are exempt, 9 are not — Austria, Cyprus, Estonia, Greece, Ireland, Latvia, Lithuania, Malta, Portugal. Outside the EU it includes the UK, Norway, Switzerland, Russia, Japan and South Korea. Set that against how common dual nationality is in Europe, and the problem appears: many people hold one passport from each side of the line.
| If you hold both | Exempt — 45 days, no visa | Not exempt — visa required |
|---|---|---|
| Ireland and the UK | British passport | Irish passport |
| Austria and Germany | German passport | Austrian passport |
| Estonia and Finland | Finnish passport | Estonian passport |
| Portugal and Spain | Spanish passport | Portuguese passport |
| Greece and Italy | Italian passport | Greek passport |
The Irish-British case catches the most people, because so much of the English-language advice an Irish reader finds was written for British travellers: accurate on gov.uk, wrong applied to an Irish passport. See urgent Vietnam visa for Irish citizens and which EU citizens need a visa.
The decision is made at check-in, not at the border
People imagine the moment of truth is Vietnamese passport control. It is not. It is the airline agent in Dublin, Vienna or Tallinn, who will not board a passenger they expect Vietnam to refuse. If the passport you hand over is non-exempt with no visa attached, you do not board.
The cost of getting this wrong is larger than a missed flight. If the airline will not board you, most carriers can cancel every remaining segment on the ticket once the first goes unused — connection and return included — and a standard travel policy usually excludes document failures. What a denied boarding actually costs covers it, including the one call worth making before the aircraft leaves.
Enter and leave Vietnam on the same passport
This is the rule that matters most. Your exemption or e-visa is attached to one specific document — that passport number, that data page — and your entry record is created against the same document.
Enter on the British passport, present the Irish one when you leave, and the exit officer holds a document with no entry record against it — a discrepancy resolved at a counter, with a flight boarding. Carry both if you like, but present one of them consistently, outbound check-in to flight home.
The booking has to match the passport you travel on
Your booking carries a passport number, and check-in is where it meets the document in your hand. If the reservation carries your Estonian passport number and the Estonian spelling of your name but you arrive with the Finnish passport, you are asking a busy agent to reconcile two identities under time pressure. Book on the passport you will travel on, and fix the booking if you did not — see also transit and layover requirements.
A British National (Overseas) passport does not qualify
Worth stating plainly, because it is a real trap: a BNO passport does not qualify for the UK exemption. If that is the British-looking document you hold, plan on a visa.
Sometimes the non-exempt passport is the better choice
The exemption is not automatically the prize. It gives 45 days, and extending that from inside the country takes a Vietnamese sponsor. The e-visa gives up to 90 days, single or multiple entry — chosen at application, not changeable later — and is valid at every official port: air, land and sea. It costs USD 25 single or USD 50 multiple entry on the government portal.
So for eight weeks in Vietnam, the Estonian or Austrian passport with an e-visa is the better document. Choose the passport that fits the trip, not the one that dodges paperwork.
When one passport is at the renewal office
If your exempt passport is away being renewed and you will travel on the other one, the whole chain has to sit on that other passport: booking, visa application, entry, exit. Never apply on the number of a document you will not be holding, and do not assume the new one arrives in time to swap back in. Vietnam is not a place to improvise a passport change at the border.
Getting the application right when you exist twice on paper
Dual nationals fail e-visa applications for a specific reason: their two passports do not spell them identically. Name order differs, a middle name appears on one only, diacritics survive in one and not the other. The application must match the data page of the passport you are flying on exactly, name order included.
- The photo rejects more people than anything else — white background, no glasses, no head covering, ears visible, face straight on. The notice never says which rule you broke: photo rejected.
- A failed payment means no application exists — no clock started, no notice will arrive: payment failed.
- Passport requirements: at least six months’ validity from arrival, and two blank pages.
- There is no appeal — a refusal means a fresh application and a second fee, and the first is not refunded: rejected and reapplying fast.
Timing, and what speed can actually be bought
The official e-visa takes 3 working days. Agencies offer fixed tiers on top — 48 hours, 24 hours, 4 hours, 1 hour. Be clear what those are: the state itself does not sell speed. There is no express fee and no priority queue on the portal, so anyone offering official priority is describing something that does not exist — the surest way to spot a dishonest intermediary. An agency files it correctly, inside Vietnamese working hours, and at weekends, which the portal cannot.
Working hours matter more than people expect. Vietnam is UTC+7 with no daylight saving, and the office runs roughly 08:00-17:00:
| Friday 18:00 local | In Hanoi |
|---|---|
| Dublin (winter, UTC+0) | Saturday 01:00 — office closed |
| Vienna (winter, UTC+1) | Saturday 00:00 — office closed |
| Tallinn (winter, UTC+2) | Friday 23:00 — office closed |
| Auckland (UTC+12) | Friday 13:00 — still working hours |
In Europe on a Friday evening, nothing moves until Monday. From Auckland the arithmetic runs the other way: 18:00 on a Friday there is 13:00 the same Friday in Hanoi, still inside working hours.
Common questions
Isn’t visa on arrival the rescue if I turn up on the wrong passport? No. It needs an approval letter arranged in advance, works only at international airports, and still means a cash stamping fee and a queue: e-visa vs visa on arrival.
I’m flying from London — does that help my Irish passport? No. The exemption follows the passport, not the airport.
What about the digital arrival card? At Tan Son Nhat in Ho Chi Minh City it is recommended, not mandatory, from 15 April 2026, and could extend to other airports at short notice. It is not a visa and does not replace one — check before you fly (source: gov.uk Vietnam travel advice, checked 6 September 2026).
Can I extend the 45 days once I’m there? Not on your own — an extension has to be filed by a Vietnamese sponsor, such as a company or relative, and is not automatic. If you are already there and running short, read emergency extension before your date passes.
It still says processing. That is not by itself a rejection signal — there is no partial-approval tier — though one running well past the normal window is worth chasing: still processing.
Ask online, we answer right awayUnusual case, or flying tomorrow? Ask before you order.Ask onlineThe short version
- The exemption follows the passport, not the citizenship or the airport
- Decide the passport before you book — booking, visa and trip all sit on it
- Enter and leave on the same document — switching creates a discrepancy at exit
- A BNO passport does not qualify for the UK exemption
- Over 45 days, the non-exempt passport with a 90-day e-visa wins
- Nobody can buy official priority — that promise marks a bad agent
- With three weeks in hand, file it yourself at evisa.gov.vn and keep the service fee. We are worth paying inside the week, when the photo worries you, or when something has already gone wrong