Efile Oklahoma Tax Return
The eSmart Tax online tax return filing solution makes it easy to efile your Oklahoma state tax return using the correct state tax forms. Prepare your full-year resident Oklahoma state tax return alongside your federal tax return for your convenience.
The regular deadline to file an Oklahoma state income tax return is April 15, but Oklahoma offers a special deadline date for electronically filed returns. If you efile your return, you can file on or before April 20.
Find additional information about Oklahoma state tax forms, Oklahoma state tax filing instructions, and government information.
|Oklahoma Form 511
Individual Resident Income Tax Return
|Oklahoma Form 511-EF
Oklahoma Individual Income Tax Declaration for Electronic Filing
|Oklahoma Form 511-V
Individual Income Tax Payment Voucher
|Taxpayer Assistance:||(405) 521-3160 or
(800) 522-8165 (In-State Only)
|Refund Status (Automated Response):||(405) 521 -3160|
|State-only tax return:||Supported|
|Return with foreign address:||Supported|
- Pay by Direct Debit from bank account. You need to make sure your bank supports direct debit.
OK support both Direct Debit and Deposit
- Mail in a check.
You need to attach Payment Voucher (Form 511-V)
Mail check to:
Oklahoma Tax Commission
PO Box 26800
Oklahoma City, OK 73126-0800
Enclose a check or money order payable to "Oklahoma Tax Commission".
- Send e-payment through state website.
- Send credit card payment through online site.
|Supported||Same as federal||N/A|
|You have the following options: