Form 511TX - Credit for Tax Paid to Another State Form 511X - Amended Return Form OW-8-P-R - Underpayment of Estimated Tax ... the option to "Check the status of an income tax ...
511TX Oklahoma Credit for Tax Paid to Another State 511X Amended Resident Individual Income Tax Return 520 Oklahoma Agricultural Producer Credit (you will also need Form 511CR)
If there is no additional state income tax due and you intend to file within the period granted ... An Oklahoma extension form 504 is required when requesting an extension beyond that granted by the IRS ...
... with OnLine Taxes Federal Income Taxes and Oklahoma State Income Tax ... offers both Federal income tax forms and State income tax ... Status of My Tax Refund Prior Year Tax Returns Form