IRS Form 8857 fax number (innocent spouse relief)

Where to fax Form 8857, Request for Innocent Spouse Relief, and its attachments to the IRS.

Verified October 21, 2026Checked against Instructions for Form 8857 (06/2021), Where To File.

IRS Form 8857 fax number (innocent spouse relief): which number to use
Who uses it	Office	Fax
Everyone filing Form 8857 by fax instead of mail	IRS innocent spouse relief fax	855-233-8558

Before you fax

Do not file Form 8857 with your tax return or the Tax Court.
The instructions say to write your name and social security number (SSN) on any attachments.

Last verified October 21, 2026

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