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Your Oklahoma return is generally due the 15th day of the third month following the close of the taxable year. For assistance or forms: See page 13 forRead more
Sep 16, 2013 The final regulations provide guidance on a discount rate-related specified application of the income method and a discount rate-related bestRead more
Fiscal year filers will pay Oklahoma Estimated Income Tax on or before the following dates: the 15th day of the fourth month of the fiscal year, the 15th day ofRead more