IRS Form 1122 Guide: Subsidiary Consolidated Return Consent

Introduction – What is Form 1122?

Form 1122, titled Authorization and Consent of Subsidiary Corporation To Be Included in a Consolidated Income Tax Return, is an official federal tax document issued by the Internal Revenue Service (IRS). It is used when a corporate subsidiary joins a parent corporation to file a single, combined corporate income tax return.

The IRS governs Form 1122 under Treasury Regulations Section 1.1502-75. By signing this form, a subsidiary corporation officially grants permission to its common parent company to include its financial results on the group’s consolidated Form 1120 return.

Purpose of the Form

Form 1122 serves as a legal consent agreement between a corporate subsidiary, its parent corporation, and the IRS. Filing a consolidated return allows affiliated corporate groups to combine profits and losses, but it requires explicit permission from every subsidiary involved.

This form solves several administrative and legal requirements:

• It documents the subsidiary’s formal agreement to be bound by all consolidated return regulations under Treasury regulations.
• It appoints the common parent corporation as the sole legal representative and agent for all tax matters during consolidated return years.
• It ensures that the subsidiary accepts joint and several liability for the consolidated group’s federal income tax for that year.

Who Needs to File This Form

Form 1122 is required whenever a corporate group files a consolidated tax return for the first time or when a new subsidiary enters an existing group. Eligibility applies to:

• Each corporate subsidiary joining a consolidated tax return group for the first tax year of the election.
• Newly acquired or newly created C corporation subsidiaries entering an established consolidated corporate group.
• Subsidiaries that were previously ineligible or filed separate returns but are now joining the parent’s consolidated return.

Who Is Exempt / Not Required to File

Not every corporate entity in a business structure needs to submit Form 1122. Exemption criteria include:

• Common Parent Corporations: The parent company files Form 1120 and Form 851 (Affiliations Schedule), not Form 1122.
• Continuing Subsidiaries: Subsidiaries that filed Form 1122 in a prior tax year and remain members of the same consolidated group do not file it again.
• Standalone Corporations: Corporations filing separate tax returns on Form 1120.
• Ineligible Entities: Foreign corporations, S corporations, REITs, and tax-exempt organizations that cannot join a U.S. consolidated tax return.

When to File

Form 1122 is an event-based filing. It is completed and attached when a subsidiary first joins a consolidated group.

• Filing Deadline: Attached to the common parent corporation’s consolidated Form 1120 return for the first year the subsidiary is included.
• Due Date: Follows the parent company’s return deadline, which is typically April 15 for calendar-year filers (or October 15 if an automatic six-month extension is requested via Form 7004).
• Frequency: One-time requirement per subsidiary, unless the subsidiary leaves and later rejoins the consolidated group.

Where and How to File

Form 1122 is not filed as a standalone form. It must be attached directly to the common parent corporation’s consolidated tax return package.

If the parent corporation e-files Form 1120, Form 1122 is included electronically through approved IRS software. If filing a paper return, attach the signed Form 1122 behind Form 1120 and mail the complete tax package to the designated IRS address as per instructions based on the parent company’s principal office location.

Step-by-Step Instructions to Fill the Form

Form 1122 is a straightforward, one-page document. It collects identifying details about both the subsidiary and the common parent corporation.

Form 1122 Information Breakdown

Form Section	Field Title	Required Information & Description
Subsidiary Details	Name & EIN	Enter the legal name, Employer Identification Number (EIN), address, and state of incorporation of the subsidiary corporation.
Parent Details	Common Parent Info	Enter the legal name, EIN, and principal business address of the common parent corporation filing Form 1120.
Tax Year Dates	Consolidated Period	Enter the beginning and ending dates of the consolidated tax year for which consent is granted.
Authorization & Signature	Corporate Officer Signature	Must be signed and dated by an authorized corporate officer of the subsidiary (e.g., President, Treasurer, or Chief Accounting Officer).

Required Documents/Information Needed Before Filling

Before completing Form 1122, gather the following organizational and corporate records:

• Legal corporate name, street address, and EIN for the subsidiary corporation.
• Date and state of incorporation for the subsidiary.
• Legal name, business address, and EIN for the common parent corporation.
• Exact beginning and ending dates of the parent company’s consolidated tax year.
• Corporate board resolutions or authorization designating an officer to execute tax consents on behalf of the subsidiary.

Common Mistakes to Avoid

Filing errors on Form 1122 can create compliance issues for the consolidated tax group. Watch out for these common errors:

• Parent Signing for the Subsidiary: Form 1122 must be signed by an authorized corporate officer of the subsidiary, not an officer of the parent company.
• Confusing Form 1122 with Form 851: Form 851 is the Affiliations Schedule completed by the parent; Form 1122 is the specific consent document executed by each subsidiary.
• Forgetting New Subsidiaries: Omitting Form 1122 when a newly formed or acquired subsidiary joins the consolidated group during the tax year.
• Incorrect Tax Identification Numbers: Entering incorrect or transposed EINs for either the parent or subsidiary corporation.

Penalties for Non-Filing or Errors

While there is no specific dollar penalty for failing to file Form 1122, omitting it can create severe structural tax penalties. If a subsidiary fails to submit a valid consent, the IRS may determine that the election to file a consolidated return is invalid for that subsidiary or for the entire corporate group.

An invalid consolidated return can force subsidiaries to file separate standalone Form 1120 returns. This can result in late-filing penalties, interest charges, and the loss of consolidated tax benefits, such as offsetting parent profits against subsidiary losses.

Related Forms or Schedules

Form 1122 is used alongside several core corporate tax forms when preparing a consolidated tax return:

• Form 1120 (U.S. Corporation Income Tax Return)
• Form 851 (Affiliations Schedule)
• Form 1120-X (Amended U.S. Corporation Income Tax Return)
• Form 7004 (Application for Automatic Extension of Time To File Certain Business Income Tax, Information, and Other Returns)

Frequently Asked Questions

Does a subsidiary corporation need to file Form 1122 every year?

No. Form 1122 is a one-time filing executed when the subsidiary first joins the parent’s consolidated tax return group. As long as it remains in the group, it does not file Form 1122 again in subsequent years.

Who is authorized to sign Form 1122?

Form 1122 must be signed by an authorized corporate officer of the subsidiary corporation, such as the President, Vice President, Treasurer, Assistant Treasurer, or Chief Accounting Officer.

What is the difference between Form 1122 and Form 851?

Form 851 (Affiliations Schedule) is completed by the parent corporation to list all subsidiaries in the corporate group and stock ownership percentages. Form 1122 is executed individually by each subsidiary to give formal consent to join the consolidated return.

Can a foreign subsidiary execute Form 1122?

Generally, no. Foreign corporations are typically excluded from joining a U.S. consolidated income tax return under Section 1504, with limited exceptions for certain Canadian and Mexican entities.

What happens if a group accidentally forgets to attach Form 1122?

If Form 1122 was omitted due to reasonable cause, the IRS may grant administrative relief under Treasury Regulations Section 301.9100, allowing the corporate group to submit the late consent form without invalidating the consolidated return.

Can a subsidiary revoke its consent on Form 1122 once submitted?

No. Once Form 1122 is submitted and the consolidated return is filed, the subsidiary cannot unilaterally revoke its consent for that tax year. The consolidated election remains binding as long as the subsidiary remains part of the affiliated group.

Conclusion – Key Takeaways

Form 1122 is a critical authorization document for corporate groups filing consolidated returns. Essential key takeaways include:

• Gives legal consent for a subsidiary to be included in a parent corporation’s consolidated Form 1120.
• Appoints the common parent company as the sole tax representative for the subsidiary.
• Required as a one-time submission during the first year a subsidiary joins the consolidated group.
• Must be signed by an authorized corporate officer of the subsidiary corporation.
• Attached directly to the parent company’s consolidated corporate tax return.