OKLAHOMA Tax Forms and Instructions
Below are the relevant links for OK State Tax information.
Oklahoma State Mandate All Oklahoma individual income tax returns prepared by a paid professional tax preparer must be e-filed.



OKLAHOMA Tax Forms and Instructions Information
Online Credit Card Payments
  • Offical Payments
    Or call 1-800-2PAY-TAX (Offical payments charges a nominal fee for this service)(Use Jurisdiction Code 2000 for Individual and Jurisdiction Code 2006 for Business Taxes)
Mailing Addresses
  • Return Mailing Address:
    Oklahoma Tax Commission
    PO Box 269045
    Oklahoma City, OK 73126-9045

  • Return Mailing Address without Refund:
    Oklahoma Tax Commission
    PO Box 26890
    Oklahoma City, OK 73126-0890

  • Estimates Mailing Address:
    Oklahoma Tax Commission
    PO Box 269027
    Oklahoma City, OK 73126-9027

  • Amended Return Mailing Address:
    Oklahoma Tax Commission
    Post Office Box 26800
    Oklahoma City, OK 73126-0800

  • Extension Mailing Address:
    If there is no additional state income tax due and you intend to file within the period granted by the IRS, the Oklahoma Tax Commission will honor the Federal extension. Enclose a copy of the Federal extension with your filed Oklahoma return. An Oklahoma extension form 504 is required when requesting an extension beyond that granted by the IRS, or if you need to make a payment to cover your anticipated tax liability. An extension is valid only if 90 percent of the tax due is paid on or before the original due date of the return. An Oklahoma extension is not an extension of time to pay the tax, it is only an extension of time to file the return.

    Oklahoma Tax Commission
    Post Office Box 26890
    Oklahoma City, Oklahoma 73126-0890

  • Electronic Filing:
    Oklahoma accepts only Resident income tax returns electronically. They can be transmitted with the Federal return or transmitted as a State only return. Nonresident and part-year returns must be mailed.
Federal Tax Information