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IRS · verified routing workflow

Fax IRS Form 8821 to the Ogden CAF Unit

Official IRS fax destination for Form 8821 in the western-state CAF routing group.

✓ verified routing workflowLast verified: 2026-09-29

Before you fax

Verify your state against the current IRS Where To File chart before sending.

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

Open workflow →
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IRS

Fax IRS Form 3911 from California and western states

Fresno Refund Inquiry Unit

Open workflow →
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IRS

Fax IRS Form 3911 to the Kansas City Refund Inquiry Unit

Kansas City Refund Inquiry Unit

Open workflow →