ExpressExtension Support
Find answers to your questions.What is the IRS cut-off time for filing the Extension form on the due date?
The deadline for filing an extension with the IRS is typically 11:59 PM on the due date, based on the time zone of your registered business location as per IRS records.
For example, if your business is registered in North Carolina on the East Coast, and you are filing the extension from your California office on the West Coast, you need to file by 9:00 PM (PST) to meet the 12:00 AM (EST) deadline of your registered business location.
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