Naturalization Certificate · Singapore
Naturalization Certificate Apostille for Use in Singapore
Route, timeline, translation and price for using a Naturalization Certificate in Singapore — based on the official Hague Convention status table.
Quick answer
Singapore accepts a U.S. apostille. Your Naturalization Certificate needs one apostille from the U.S. Department of State — 10–12 business days with us. English generally accepted.
Key takeaways
- Issued by US Citizenship and Immigration Services; authenticated only by the U.S. Department of State in Washington, D.C.
- Singapore is a Hague Convention country — the apostille is accepted with no embassy step.
- Through us: $299 all-in (including the $20 government fee and U.S. return shipping), 10–12 business days.
- Do it yourself: Form DS-4194 and a $20 fee per document — processed within 5 weeks by mail, or 7 business days if you drop it off in Washington, D.C.
- Route
- Apostille — one step
- Hague member since
- 16 September 2021
- Issuing authority
- US Citizenship and Immigration Services
- Translation
- English generally accepted.
Is Singapore a Hague Convention country?
Yes. The Apostille Convention has been in force for Singapore since 16 September 2021, and for the United States since 15 October 1981 — so a U.S. apostille is accepted in Singapore with no embassy step.
That date matters. Before 16 September 2021, U.S. documents for Singapore 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embassy legalization, and instructions written before then — including some older guides and consulate pages — are now out of date.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 Singapore
A Naturalization Certificate is issued by US Citizenship and Immigration Services, a federal authority, so it is authenticated by the U.S. Department of State in Washington, D.C. — never by a state office. For Singapore, that apostille is the finish line.
People most often send documents to Singapore for employment passes and business registration. Receiving offices set their own requirements, so confirm what yours asks for — we’ll help you read it.
About the Naturalization Certificate
How to apostille a Certificate of Naturalization for use abroad.
You obtain this from US Citizenship and Immigration Services. We can’t request it on your behalf, but once you have it, we handle everything through to delivery in Singapore.
Timeline and price
| Stage | Time | Notes |
|---|---|---|
| U.S. Department of State apostille | 10–12 business days | Hand-delivered in Washington, D.C. |
| 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 Singapore
English generally accepted. If the receiving office asks for a translation anyway, we can arrange a certified one.
How it works
Confirm the route
Tell us you’re sending a Naturalization Certificate to Singapore. We confirm route, price and timing before any payment.
Get the document to us
Ship it to us with tracking (we send the address when we confirm your order), or drop it off by appointment at our West Palm Beach or Miami office.
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.
Delivery
Returned to you by tracked courier, or sent directly to your recipient in Singapore.
Sources: HCCH — Apostille Convention status table (checked October 2026) · U.S. Department of State — Authenticate Your Document.
How long does the Naturalization Certificate apostille take for Singapore?
The U.S. Department of State is the only office that issues a federal apostille. Mailed in yourself, it is processed within 5 weeks of receipt; dropped off in person in Washington, D.C., within 7 business days. Through us it takes 10–12 business days.
| Route | How | Processing time | Cost |
|---|---|---|---|
| Mail it yourself | Form DS-4194 + check to the Office of Authentications, Sterling, VA | Within 5 weeks of receipt | $20 per document + shipping |
| Drop it off yourself | 600 19th Street NW, Washington, D.C. — Mon–Thu, 7:30–9:00 AM, no appointment | Within 7 business days | $20 per document + travel |
| Emergency appointment | Only for a life-or-death family emergency with travel within 2 weeks | Same day | $20 per document |
| Through Federal Apostille USA | We review it, drop it off in D.C. and return it to you with tracking | 10–12 business days total | $299 all-in |
What does it cost for Singapore?
The government fee is $20 per document, paid with Form DS-4194. Our all-in price is $299 per document, covering the government fee, review, D.C. drop-off and U.S. return shipping.
Government figures: U.S. Department of State — Request Authentication Services (checked October 2026).
Naturalization Certificate for Singapore — FAQ
Is Singapore part of the Hague Apostille Convention?
Yes. The Convention has been in force for Singapore since 16 September 2021, so a U.S. apostille is accepted there directly.
How long does it take to prepare a Naturalization Certificate for Singapore?
About 10–12 business days for the U.S. Department of State apostille, plus return shipping.
How much does it cost to send a Naturalization Certificate to Singapore?
$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 Singapore?
English generally accepted. We can arrange certified translation with your order.
Can you get the Naturalization Certificate for me?
No — you obtain it from US Citizenship and Immigration Services first. Once you have it, we handle the rest.
Do I have to be in the United States?
No. Most Singapore orders are handled entirely by mail, and we can ship the finished document anywhere.
Related: Naturalization Certificate — full guide · All documents for Singapore · 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.