IRS Form 6166 · Vietnam
IRS Form 6166 Apostille for Vietnam
Route, timeline, translation and price for using a IRS Form 6166 in Vietnam — based on the official Hague Convention status table.
Quick answer
Vietnam accepts a U.S. apostille. Your IRS Form 6166 needs one apostille from the U.S. Department of State — 10–12 business days with us. Certified Vietnamese translation required.
- Route
- Apostille — one step
- Hague member since
- 11 September 2026
- Issuing authority
- Internal Revenue Service
- Translation
- Certified Vietnamese translation required.
Is Vietnam a Hague Convention country?
Yes. The Apostille Convention has been in force for Vietnam since 11 September 2026, and for the United States since 15 October 1981 — so a U.S. apostille is accepted in Vietnam with no embassy step.
That date matters. Before 11 September 2026, U.S. documents for Vietnam had to go through embassy legalization, and instructions written before then — including some older guides and consulate pages — are now out of date.
The route to Vietnam
A IRS Form 6166 is issued by Internal Revenue Service, a federal authority, so it is authenticated by the U.S. Department of State in Washington, D.C. — never by a state office. For Vietnam, that apostille is the finish line.
People most often send documents to Vietnam for work permits, marriage, adoption. Receiving offices set their own requirements, so confirm what yours asks for — we’ll help you read it.
About the IRS Form 6166
How to apostille IRS Form 6166, the U.S.
You obtain this from Internal Revenue Service. We can’t request it on your behalf, but once you have it, we handle everything through to delivery in Vietnam.
Timeline and price
| Stage | Time | Notes |
|---|---|---|
| U.S. Department of State apostille | 10–12 business days | Hand-delivered in Washington, D.C. |
| Certified translation | Alongside | Ordered with the authentication so nothing waits in sequence |
| Return shipping | 1–3 days in the U.S. | Tracked courier; worldwide delivery available |
Price: $299 per document, government fees and U.S. shipping included.
Translation for Vietnam
Certified Vietnamese translation required. We coordinate certified translation alongside the authentication so the document arrives ready to file.
How it works
Confirm the route
Tell us you’re sending a IRS Form 6166 to Vietnam. We confirm route, price and timing before any payment.
Get the document to us
Ship it to our processing office, or to any of our U.S. offices and we route it internally.
Pre-submission review
We check it against authentication requirements to catch the problems that cause rejections.
Department of State
Hand-delivered to the Office of Authentications in Washington, D.C.
Certified translation
Arranged alongside so it arrives ready to file in Vietnam.
Delivery
Returned to you by tracked courier, or sent directly to your recipient in Vietnam.
Sources: HCCH — Apostille Convention status table (updated 30 June 2026) · U.S. Department of State — Authenticate Your Document.
IRS Form 6166 for Vietnam — FAQ
Is Vietnam part of the Hague Apostille Convention?
Yes. The Convention has been in force for Vietnam since 11 September 2026, so a U.S. apostille is accepted there directly.
How long does it take to prepare a IRS Form 6166 for Vietnam?
About 10–12 business days for the U.S. Department of State apostille, plus return shipping. Certified translation runs alongside.
How much does it cost to send a IRS Form 6166 to Vietnam?
$299 per document, with government fees and U.S. shipping included. We confirm your exact price before any payment.
Do I need a translation for Vietnam?
Certified Vietnamese translation required. We can arrange certified translation with your order.
Can you obtain the IRS Form 6166 for me?
No — you obtain it from Internal Revenue Service first. Once you have it, we handle the rest.
Do I have to be in the United States?
No. Most Vietnam orders are handled entirely by mail, and we can ship the finished document anywhere.
Related: IRS Form 6166 — full guide · All documents for Vietnam · Apostille vs. embassy legalization · Why apostilles get rejected
Ready to start?
Order online in minutes, or call and we will walk you through it. Federal documents from anywhere in the U.S. — one flat price, all government fees included.