Your Business Tax Return Is Due Before the EIN Arrives: What to Check

November 13, 2026 · 2 min read

For a tax return due while an EIN is pending, general IRS guidance says to enter “Applied For” and the actual application date in the EIN space. Check the exact return instructions and allowed filing channel first, especially for a specialized filing or an information return.

What to check

Build a short record with the entity’s legal name, the exact return, the tax period, the due date, and proof of when the EIN application was submitted. The IRS advises against substituting a personal Social Security number on a tax return that requires a business EIN. Verify filing and payment instructions separately. The pending-EIN guidance for a return does not establish that an extension request will be valid with a placeholder. Form 7004 asks for the applicable identifying number and has its own requirements.

Example

A business owner mailed Form SS-4 before a return deadline and still has no EIN. The owner retrieves the signed application and mailing evidence and confirms the return type and filing channel. If the instructions for that return permit the pending-EIN entry on a paper filing, the owner uses the actual application date and retains the submitted return and its delivery evidence.

Before you proceed

Confirm the exact return, period, due date, and channel before relying on general IRS guidance.
Retrieve dated evidence of the Form SS-4 submission and use the real date applied.
Check separately for tax payment instructions or special rules on an extension.

Can I enter my personal SSN because the business EIN has not arrived?

If the return asks for the business EIN, the IRS advises against substituting a personal SSN. Follow the instructions for that return and the IRS’s pending-EIN guidance where applicable.