Oklahoma individual income tax forms supported in Keystone Tax Solutions Pro:
Form 504-I – Application for Extension of Time to File
Form 505 – Injured Spouse Claim and Allocation
Form 511 – Resident Income Tax Return
Form 511CR – Other Credits
Form 511EF – Declaration for Electronic Filing
Form 511NR – Nonresident/Part-Year Income Tax Return
Form 511TX – Credit for Tax Paid to Another State
Form 511-V – Payment Voucher
Form 511W – W-2 Data Sheet
Form 511X – Amended Return
Form 538-H – Claim for Credit or Refund of Property Tax
Form 538-S – Claim for Credit/Refund of Sales Tax
Form 561 – Capital Gain Deduction for Form 511 Filers
Form 561NR – Capital Gain Deduction for Form 511NR Filers
Form 564 – Credit For Employees In The Aerospace Sector
Form OW-8-ES – Individual Estimated Tax
Form OW-8-P – Underpayment of Estimated Tax Worksheet
Form OW-8-P-SUP-I – Annualized Income Installment Method
Worksheets One and Two – Use Tax