E-file an IRS business tax extension with TaxExtension.com
The State of Oklahoma recognizes the Federal tax extension (IRS Form 7004). Therefore, if you have a valid Federal business extension, you will automatically receive a corresponding Oklahoma business extension. Make sure to enclose a copy of your Federal extension with your Oklahoma tax return when it’s filed.
If you do not have a Federal extension, or if you owe Oklahoma income tax, you can request an Oklahoma tax extension with Form 504 (Application for Extension of Time to File an Oklahoma Income Tax Return). You must file Form 504 (with payment, if applicable) by the original deadline of your return (March 15). Remember to enclose a copy of your Oklahoma extension with your tax return when it’s filed.
A tax extension gives you more time to file, not to pay. At least 90% of your Oklahoma tax due must be paid by the original deadline (April 15) if you want to get a state tax extension. To make your Oklahoma extension payment electronically, go online to the Electronic Payment Options portal: www.tax.ok.gov/payments
NOTE: If you make the Oklahoma extension payment electronically, do not file Form 504.
For more information, please visit the Oklahoma Tax Commission website: www.tax.ok.gov
Form 504 (Application for Extension of Time to File an Oklahoma Income Tax Return): https://www.ok.gov/tax/documents/504-15.pdf
Mail to the following address:
Oklahoma Tax Commission
Income Tax
P.O. Box 26890
Oklahoma City, Oklahoma 73126-0890