Fax the duplicate copy of Form 3115 (automatic change)

For automatic accounting-method changes the IRS accepts the duplicate copy of Form 3115 by fax at 844-249-8134 — one Form 3115 per transmission, up to 100 pages. The original copy is still attached to your timely-filed return.

Note our flat price covers 25 pages; a longer 3115 package should be split per the IRS's one-form-per-fax rule anyway.

Fax Form 3115 now — $2.49

Where this form faxes

ScenarioIRS fax number
Duplicate copy, automatic changes only844-249-8134

IRS fax numbers change without notice. We re-verify our routing table against the current IRS form instructions, and the exact number your document was sent to is printed on your transmission report.

Deadline

The duplicate must be submitted no earlier than the first day of the year of change and no later than when the original is filed with the return.

Frequently asked questions

Only the duplicate copy for automatic changes goes to 844-249-8134. The original is attached to your federal return as usual; non-automatic requests follow a different procedure with a user fee.

No — the IRS requires one Form 3115 per fax transmission, maximum 100 pages.

The IRS does not send a receipt for the duplicate copy. Your fax transmission report is the record that it was submitted on time.

Ready to fax Form 3115?

$2.49 flat up to 25 pages · correct IRS number resolved automatically · transmission report to your email.

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