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Seattle, WA

IRS Form 6166 Apostille in Seattle, WA

How Seattle residents get their IRS Form 6166 authenticated for use abroad — which office handles it, the local details, timing and price.

Quick answer

There’s no federal apostille office in Seattle. Federal documents like your IRS Form 6166 are authenticated only by the U.S. Department of State in Washington, D.C. We handle that submission; you send the document by mail.

County
King County
Federal court
U.S. District Court for the Western District of Washington
State apostille office
Washington Secretary of State, Olympia
Our nearest office
Washington, D.C. (headquarters)

Why living in Washington 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 Washington Secretary of State in Olympia has no authority over them, and a state apostille on a federal document will be rejected abroad.

So the process for Washington 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.

Seattle: the local details

Seattle is in King County, within the U.S. District Court for the Western District of Washington. Washington state documents are apostilled by the Washington Secretary of State in Olympia.

About the IRS Form 6166

How to apostille IRS Form 6166, the U.S.

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.

Getting it done from Seattle

We don’t have an office in Seattle — and you don’t need one. Seattle clients send documents by mail, and our nearest office is Washington, D.C. (headquarters).

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

IRS Form 6166 in Seattle — FAQ

Is there an apostille office in Seattle for a IRS Form 6166?

No. The only office that can authenticate this document is the U.S. Department of State in Washington, D.C. We handle that submission for Seattle clients by mail.

Do I need to visit an office in Seattle?

No. Seattle clients send documents by mail and receive them back by tracked courier.

How long does it take from Seattle?

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.

Which federal court covers Seattle?

Seattle is in King County, within the U.S. District Court for the Western District of Washington.

Related: All documents in Seattle · IRS Form 6166 in Washington · IRS Form 6166 — full guide

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