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Florida

IRS Form 6166 Apostille in Florida

How Florida residents get their IRS Form 6166 authenticated for use abroad — which office handles it, what the Florida Department of State can and can’t do, timing and price.

Quick answer

There is no federal apostille office in Florida. Federal documents like your IRS Form 6166 are authenticated only by the U.S. Department of State in Washington, D.C. — the Florida Department of State can’t apostille them. We handle the Washington submission; you send the document by mail.

Key takeaways

  • Issued by Internal Revenue Service; apostilled only by the U.S. Department of State — the Florida Department of State can’t apostille it.
  • Through us: $299 all-in for Hague countries (10–12 business days) or $399 with embassy legalization for non-Hague countries (15–17 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.
Authenticated by
U.S. Department of State
Florida apostille office
Florida Department of State, Tallahassee
Our nearest office
Miami, West Palm Beach
Price
$299 per document, government fees included

Why living in Florida doesn’t change the route

This document is issued by Internal Revenue Service, a federal authority. Federal documents are authenticated only by the U.S. Department of State in Washington, D.C. — the Florida Department of State in Tallahassee has no authority over them, and a state apostille on a federal document will be rejected abroad.

So the process for Florida residents is the same as for anyone else in the country: get the document to us, we hand-deliver it in Washington, and it comes back ready to use.

About the IRS Form 6166

How to apostille IRS Form 6166, the U.S. tax-residency certification used for tax-treaty benefits and accounts abroad.

You need Form 8802 first. Form 6166 is issued only after you file IRS Form 8802, which carries a user fee and commonly takes six weeks or more. The 6166 is also year-specific, so confirm which tax year the destination requires.

What the Florida Department of State can do

The Florida Department of State in Tallahassee issues apostilles for documents signed by Florida officials — birth, death and marriage certificates from Florida registrars, Florida state-court records, and documents notarized by Florida notaries. It has no authority over federal documents such as FBI reports, USCIS certificates or IRS letters.

State offices set their own procedures and fees, so confirm current requirements with the office before submitting a state document.

Getting it done from Florida

We have two offices in Florida open to the public by appointment: Miami and West Palm Beach — for in-person FBI background checks and document drop-off. Most clients still send documents by mail — it’s the fastest route to Washington.

DestinationRouteOur turnaround
Hague Convention countryU.S. Department of State apostille10–12 business days
Non-Hague countryAuthentication + embassy legalization15–17 business days

Serving Miami, Orlando, Tampa, Jacksonville, West Palm Beach and everywhere else in Florida.

Official sources: IRS — Form 8802 & Form 6166 · U.S. Department of State — Authenticate Your Document · Florida Department of State — Apostilles & Authentications · HCCH — Apostille Convention status table (Hague countries).

Florida state documents (birth, marriage, state court, notarized) are apostilled by the Florida Department of State, Division of Corporations, Apostille Section · 2415 N. Monroe Street, Suite 810, Tallahassee, FL 32303 · 850-245-6053 · state fee $10 ($20 for Clerk of Court documents). We don’t provide state-level apostilles. Official page (checked October 2026).

How long does the IRS Form 6166 apostille take from Florida?

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, or 15–17 business days for a non-Hague country that also needs embassy legalization.

RouteHowProcessing timeCost
Mail it yourselfForm DS-4194 + check to the Office of Authentications, Sterling, VAWithin 5 weeks of receipt$20 per document + shipping
Drop it off yourself600 19th Street NW, Washington, D.C. — Mon–Thu, 7:30–9:00 AM, no appointmentWithin 7 business days$20 per document + travel
Emergency appointmentOnly for a life-or-death family emergency with travel within 2 weeksSame day$20 per document
Through Federal Apostille USAWe review it, drop it off in D.C. and return it to you with tracking10–12 business days total$299 all-in ($399 non-Hague)

What does it cost from Florida?

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; non-Hague destinations are $399 with embassy legalization.

Government figures: U.S. Department of State — Request Authentication Services (checked October 2026).

IRS Form 6166 in Florida — FAQ

Can the Florida Department of State apostille my IRS Form 6166?

No. This is a federal document, so only the U.S. Department of State can authenticate it. A state apostille on it would be rejected abroad.

Do I have to travel to Washington, D.C. from Florida?

No. We handle the Washington submission for you. Most Florida clients send their documents by mail and receive them back by tracked courier.

How long does it take from Florida?

About 10–12 business days for Hague Convention countries and 15–17 for non-Hague countries including embassy legalization, plus shipping.

How much does it cost?

$299 per document for Hague countries, with government fees and U.S. shipping included; non-Hague destinations are $399 including embassy legalization.

Related: IRS Form 6166 — full guide · All documents in Florida · Federal vs. state apostille

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.