| Form 454 | Oklahoma Estate Form Packet | 04/01/2011 |
| Form 500 | Information Return | 11/29/2011 |
| Form 501 | Annual Information Return | 11/29/2011 |
| Form 504 | Application for Extension of Time to File | 12/29/2011 |
| Form 505 | Injured Spouse Claim and Allocation | 11/29/2011 |
| Form 506 | Investment/Jobs Credit | 09/22/2011 |
| Form 507 | Statement of Person Claiming Refund Due a Deceased Taxpayer | 06/11/2012 |
| Form 526 | Rural Small Business Capital Company Information Report | 10/17/2011 |
| Form 527 | Small Business Capital Company Information Report | 10/17/2011 |
| Form 528 | Agricultural Exclusion Information Return | 11/29/2011 |
| Form 529 | Small Business Guarantee Fee Credit | 10/13/2011 |
| Form 561 | Capital Gain Deduction (for residents filing Form 511) | 12/29/2011 |
| Form 562 | Film or Music Project Credit | 10/13/2011 |
| Form 563 | Research and Development New Jobs Credit | 10/13/2011 |
| Form 564 | Credit for Employees in the Aerospace Sector | 04/10/2012 |
| Form 565 | Credit for Employees in the Aerospace Sector | 10/26/2011 |
| Form 569 | Reporting Form for the Transfer or Allocation of a Tax Credit | 09/06/2011 |
| Form 572 | Transfer Agreement for Income Tax or Insurance Premium Tax Credit | 10/18/2011 |
| Form 573 | Farm Income Averaging | 10/13/2011 |
| Form 574 | Nonresident/Resident Allocation | 12/29/2011 |
| Form 580 | Computer Industry Credit | 10/25/2011 |
| Form 599 | Request for Copy of Income Tax Return | 06/19/2012 |
| Form 454-A | Affidavit of Surviving Spouse | 12/09/2005 |
| Form 454-N | Simplified Nontaxable Affidavit | 05/19/2008 |
| Form 500A | Information Return - Production Payments | 11/29/2011 |
| Form 500B | Information Return - Report of Nonresident Member Income Tax Withheld | 12/29/2011 |
| Form 511 BAT | Oklahoma Business Activity Tax - for Individuals Who Have A Sole Proprietorship or Report Farm Income | 12/22/2011 |
| 511 Form 2-D | Individual Resident Income Tax Return | 02/22/2012 |
| Form 511 NOL | Oklahoma Net Operating Loss | 11/29/2011 |
| Form 511 NOL-NR | Oklahoma Net Operating Loss(es) - Nonresident/Part-Year Resident Only | 11/29/2011 |
| 511 Packet | Individual Resident Income Tax Return Packet | 12/29/2011 |
| Form 511CR | Schedule for Other Credits | 11/01/2011 |
| Form 511EF | Individual Income Tax Declaration for Electronic Filing | 09/21/2011 |
| 511NR Form 2-D | Individual Nonresident/Part-Year Income Tax Return | 12/09/2011 |
| 511NR Packet | Individual Nonresident/Part-Year Income Tax Return Packet | 02/16/2012 |
| Form 511TX | Oklahoma Credit for Tax Paid to Another State | 11/15/2011 |
| Form 511-V | Oklahoma Individual Income Tax Payment Voucher | 12/22/2011 |
| Form 511X | Amended Resident Individual Income Tax Return for Tax Year 2011 | 12/22/2011 |
| Form 511X 2-D | Amended Resident Individual Income Tax Return for Tax Year 2011 | 01/27/2012 |
| Form 512 2-D | Corporate Income Tax Return | 12/06/2011 |
| 512 Packet | Corporate Income Tax Return Packet | 12/19/2011 |
| Form 512E | Return of Organization Exempt from Income Tax | 03/05/2012 |
| 512S Packet | Small Business Corporate Tax Return Packet | 12/22/2011 |
| Form 512X | Amended Corporate Income Tax Return | 08/31/2012 |
| 513 Packet | Fiduciary Resident Income Tax Return Packet | 12/19/2011 |
| 513NR Packet | Fiduciary Nonresident Income Tax Return Packet | 12/19/2011 |
| 514 Packet | Partnership Information Return Packet | 01/26/2012 |
| Form 526A | Rural Small Business Capital Company Report for Investors | 10/17/2011 |
| Form 527A | Small Business Capital Company Report for Investors | 10/17/2011 |
| Form 538H | Credit for Refund of Property Taxes (low income taxpayers) | 12/30/2011 |
| Form 538S | Sales Tax Refund | 12/29/2011 |
| Form 561C | Capital Gain Deduction | 09/14/2011 |
| Form 561F | Capital Gain Deduction | 11/29/2011 |
| Form 561NR | Capital Gain Deduction | 11/21/2011 |
| Form 561NR-F | Capital Gain Deduction | 11/29/2011 |
| Form 561P | Capital Gain Deduction | 11/29/2011 |
| Form 561S | Capital Gain Deduction | 11/29/2011 |
| Form 567-A | Credit for Investment in a Clean-Burning Motor Vehicle Fuel Property | 10/13/2011 |
| Form A-100 | Disclosure of Tax Information Authorization | 07/17/2012 |
| Form BT129 | Oklahoma Power of Attorney Form | 05/25/2006 |
| Form EF | Oklahoma Income Tax Declaration for Electronic Filing | 08/09/2012 |
| Form EF-V | Business Filers Income Tax Payment Voucher | 08/09/2012 |
| Form G-141 | Transmittal of Tax Returns Reported on Magnetic Media | 02/08/2012 |
| Form OW-11 | Registration for Oklahoma Withholding for Nonresident Members | 06/11/2012 |
| Form OW-12 | Registration for Nonresident Royalty Interest | 06/12/2012 |
| Form OW-13 | Registration of Out of State Attorney | 10/11/2004 |
| Form OW-15 | Nonresident Member Withholding Exemption Affidavit | 01/29/2009 |
| Form OW-15-A | Transmittal of Nonresident Member Withholding Exemption Affidavit | 04/23/2008 |
| Form OW-8-ES | Estimated Tax Declaration for Individuals | 12/02/2010 |
| Form OW-8-ESC | Estimated Tax Declaration for Corporations | 12/02/2010 |
| Form OW-8-P | Worksheet for Underpayment of Estimated Tax | 11/29/2011 |
| Form OW-8-P-SUP-I | Oklahoma Annualized Income Installment Method for Individuals | 11/29/2011 |
| Form OW-9-D | Out-of-State Attorneys Oklahoma Withholding Tax Report | 10/18/2004 |
| Form OW-9-MSE | Annual Withholding Tax Exemption Certification For Military Spouse | 12/03/2010 |
| Form OW-9-P | Nonresident Oklahoma Distributed Income Withholding Tax Penalty and Interest Worksheet | 09/28/2011 |
| Packet S | Application for Settlement of Tax Liability | 07/17/2012 |
| Form WTH10001 | Oklahoma Wage Withholding Tax Return | 11/28/2011 |
| Form WTH10004 | Oklahoma Wage Withholding Tax Payment Record Semi-Weekly Payors not paying by EFT | 11/28/2011 |
| Form WTH10006 | Oklahoma Wage Withholding Tax Application | 09/26/2011 |
| Form WTP10003 | Oklahoma Nonresident Distributed Income Withholding Tax Annual Return | 11/28/2011 |
| Form WTP10005 | Oklahoma Nonresident Distributed Income Estimated Withholding Tax Report | 11/28/2011 |
| Form WTR10002 | Oklahoma Nonresident Royalty Withholding Tax Return | 11/28/2011 |