511

Resident Individual Income Tax Return

This return allows full-year Oklahoma residents to report all income, adjustments, deductions, and credits to calculate their state tax liability at rates from 0.25% to 4.75%, potentially qualifying for refunds or payments.

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What is a 511 form?

Gather federal 1040, W-2s, 1099s, prior OK return.
Enter filing status, exemptions, full-year residency.
Adjust AGI per instructions, compute tax using brackets.
Attach Schedule 511-CR for credits, W-2s; verify calculations.
Subtract withholdings/estimates for refund or due amount; include voucher if paying.
E-sign and date (joint with spouse if applicable).
E-file at tax.ok.gov or mail PO Box 26830, Oklahoma City, OK 73126; retain copies for 3 years.

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511