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Form 8857 · Request for Innocent Spouse Relief

How to fax Form 8857 to the IRS.

On a joint return, both spouses are responsible for the whole tax bill. If you believe only your spouse or former spouse should be held responsible for all or part of it, Form 8857 is how you ask the IRS for relief. You can mail it or fax it, with its attachments, to one number.

See the fax number Fax Form 8857 now

Fax numbers checked against irs.gov on October 10, 2026.

The fax number

Which number to fax Form 8857 to.

Find the row that matches you and use that number. These are the numbers in the official instructions, read on October 10, 2026. Open the official page and confirm before you send.

Innocent spouse unit
855-233-8558

Everyone

Official source: irs.gov, Instructions for Form 8857, Where To File (Form 8857, revision June 2021). Toll-free 855 numbers cost the same as any US or Canadian number on HelpMeFax.

Before you press send

What to check first.

  • Fax the form and its attachments together, as one fax.
  • Do not file it with your tax return or with the Tax Court.
  • The form is 6 pages, so expect $4.99 (6–10 pages), or more with attachments.
If fax isn’t the best route

Other ways to file.

  • By U.S. mail to Internal Revenue Service, P.O. Box 120053, Covington, KY 41012.
  • By private delivery service to Internal Revenue Service, 7940 Kentucky Drive, Stop 840F, Florence, KY 41042.
No fax machine needed

How to fax Form 8857 with HelpMeFax.

From a phone or a computer, with no app to install. Form 8857 is 6 pages, so with a cover page it is $4.99, and there is no subscription.

  1. 1

    Complete and sign Form 8857

    Fill in the form and sign it. Save it as a PDF, or photograph every page.

  2. 2

    Find your fax number

    Use the chart on this page for your situation, and confirm it on the official IRS page linked below it.

  3. 3

    Upload and send

    Upload at helpmefax.com, enter the IRS fax number, add a cover page if you want one, and pay by card: $4.99 for this form with a cover page, no subscription.

  4. 4

    Keep the confirmation

    Save the delivery confirmation email with your copy of the form. It records when the IRS fax system accepted it.

Busy lines are retried automatically, and the delivery confirmation is emailed to you and kept in your fax history. Faxing from a phone? See faxing from an iPhone or an Android phone.

FAQ

Faxing Form 8857.

Everyone: 855-233-8558. Read from irs.gov on October 10, 2026; confirm at the official page before you send.
Yes. The instructions say you can fax the form and its attachments to 855-233-8558 instead of mailing it.
No. The instructions say not to file Form 8857 with your tax return or with the Tax Court. Fax it or mail it on its own.
One flat price per fax: $2.99 for 1–5 pages, $4.99 for 6–10, $8.99 for 11–25, $14.99 for 26–50, $24.99 for 51–100, then $0.15 per page. Form 8857 is 6 pages, so with a cover page it is $4.99 unless you attach more. No subscription; pay by card.
Your document is encrypted with TLS 1.2+ in transit and AES-256 at rest, and the fax is a direct call to the IRS fax line, with no email inbox in between. You get a delivery confirmation by email when the IRS fax system accepts it. Documents are stored encrypted for 365 days, then deleted automatically.
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HelpMeFax is an independent fax service, not affiliated with or endorsed by the Internal Revenue Service, and this page is not tax advice. It restates the official instructions for Form 8857; when they differ, the IRS instructions win.

Fax Form 8857 today, without a fax machine.

Upload it, enter the IRS number, and keep the delivery confirmation. $4.99 for this form with a cover page.

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