Form 8806 Must Be Faxed — Mail Is No Longer Accepted
Acquisition of control or substantial change in capital structure? Form 8806 can only be submitted by fax — the IRS discontinued mail submissions in July 2022.
What Is Form 8806 and Who Must File?
IRS Form 8806 (Information Return for Acquisition of Control or Substantial Change in Capital Structure) must be filed when a domestic corporation: • Acquires control of another domestic corporation (50%+ of stock by vote or value), or • Undergoes a substantial change in its capital structure through issuances, exchanges, reorganizations, or distributions of stock Both the acquiring corporation and the target corporation may be required to file. The requirement applies regardless of whether the transaction is taxable or tax-free.
Fax Is the Only Option — Mail Discontinued July 2022
The IRS stopped accepting Form 8806 by mail in July 2022. Fax to (844) 249-6232 is the only accepted submission method. There is no e-file option. The IRS does not send confirmation of receipt for faxed Form 8806. Your fax delivery confirmation is your only evidence of timely filing. Download it immediately after sending.
The 45-Day Deadline
Form 8806 must be filed within 45 days of the acquisition of control or capital structure change. For publicly traded corporations, it must also be filed by January 5 of the year following the transaction year — whichever deadline comes first. No extension is available for this deadline.
The $500/Day Penalty
Failure to file Form 8806 on time carries a penalty of $500 per day, with a maximum of $100,000 per transaction. The penalty begins accruing the day after the 45-day deadline passes. Your fax delivery confirmation is your proof of timely filing. For critical filings, consider also sending by USPS Certified Mail — see Is a Fax Confirmation Proof of IRS Filing? for the legal analysis.
Related Form: Form 8023 (Section 338 Elections)
If your transaction involves a qualified stock purchase (QSP) where the acquirer is making a Section 338 election to treat the purchase as an asset acquisition for tax purposes, you also need to file Form 8023 separately. Form 8023 fax number: (844) 253-9765. Due by the 15th day of the 9th month after the acquisition date. Forms 8806 and 8023 are separate filings and may both be required for the same transaction.
How to Fax Form 8806 with FaxTerra
Download Form 8806 from IRS.gov. Complete all required schedules — common errors include missing CUSIP numbers for publicly traded stock and incomplete identification of all "affected shareholders" as defined in the instructions. Save as a PDF. Upload to FaxTerra, enter (844) 249-6232, set quality to High (300 DPI minimum), and send. Download your delivery confirmation immediately — this is your only evidence of timely filing. Free for up to 10 pages.
Frequently Asked Questions
What is the fax number for Form 8806?
(844) 249-6232. This is the only accepted submission method — the IRS stopped accepting mail in July 2022.
Is Form 8806 really fax-only?
Yes. As of July 2022, the IRS no longer accepts Form 8806 by mail. Fax to (844) 249-6232 is the only accepted method. There is no e-file option.
When is Form 8806 due?
Within 45 days of the acquisition of control or capital structure change. For publicly traded corporations, also by January 5 of the following year if that comes first. No extensions are available.
What is the penalty for filing Form 8806 late?
$500 per day, with a maximum of $100,000 per transaction. The penalty begins the day after the 45-day deadline. Save your fax delivery confirmation as proof of timely filing.
Does the IRS confirm receipt of Form 8806?
No. The IRS does not send any acknowledgment for faxed Form 8806. Your fax transmission confirmation is your only evidence of filing. Download it immediately after sending.
What is the difference between Form 8806 and Form 8023?
Form 8806 reports the acquisition of control or capital structure change. Form 8023 is a separate election — the acquiring corporation uses it to treat a qualified stock purchase as an asset acquisition under Section 338. Both may be required for the same transaction. Form 8023 fax number: (844) 253-9765.