United States
Oklahoma: what the state takes
Oklahoma charges its own income tax on top of federal tax. Here is the rate, the return, the date and where the official rules live.
Agency page last read 11 September 2026.
State rate
Banded
2025 Oklahoma bands, standard deduction 6,350 single and 12,700 joint
Resident return
Form 511
Oklahoma Tax Commission
Due
15 April, following the federal deadline
Weekends and holidays can push it on
Try a figure
Yearly income
How you file
Oklahoma tax
$3,072
Top state rate you touch
4.75%
- Kept before federal tax$58,076
- Federal income tax$13,852
- Oklahoma tax$3,072
Band by band
State deduction taken off first: $6,350. Taxed amount: $68,650.
- $0 to $1,000 at 0.25%$3
- $1,000 to $2,500 at 0.75%$11
- $2,500 to $3,750 at 1.75%$22
- $3,750 to $4,900 at 2.75%$32
- $4,900 to $7,200 at 3.75%$86
- $7,200 to above at 4.75%$2,919
Filing in Oklahoma
- Who collects it
- Oklahoma Tax Commission
- Return
- Form 511
- Deadline
- Usually 15 April, following the federal deadline
Federal comes on top
Whatever your state does, the IRS wants Form 1040 by 15 April, plus Social Security and Medicare through your wages or self employment tax. State tax paid can sometimes be deducted federally if you itemise, within a yearly cap.