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IRS · verified routing workflow

Fax IRS Form 3911 from outside the United States

Current IRS Form 3911 routing for qualifying international, territory, APO/FPO and dual-status filers.

✓ verified routing workflowLast verified: 2026-09-29

Before you fax

This routing has specific eligibility wording. Read the official IRS state/routing table before using it.

Official source checkedwww.irs.gov ↗
MORE VERIFIED ROUTES

Start with the task — not the fax number.

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IRS

Fax IRS Form 3911 from Florida, Texas & Austin-routed states

Austin Refund Inquiry Unit

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IRS

Fax IRS Form 3911 from California and western states

Fresno Refund Inquiry Unit

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IRS

Fax IRS Form 3911 to the Kansas City Refund Inquiry Unit

Kansas City Refund Inquiry Unit

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