2026 Tax Tables
Oklahoma significantly reformed its income tax in 2026, consolidating from six brackets down to three and reducing the top rate from 4.75% to 4.5%. The standard deduction is now embedded as a zero-rate opening bracket — $10,100 for single filers and $20,200 for married filers — rather than a separate line item. Employers withhold using the Oklahoma W-4 form, which uses allowances worth $1,000 each annually.
Calculate OklahomaWithholding →State Tax Rate
2.5% / 3.5% / 4.5% brackets
State W-4 Form
Oklahoma W-4
Tax Year
2026
Ready to calculate Oklahoma withholding?
Free, accurate, no account required. Results update as you type.
Oklahoma uses three brackets in 2026: 2.5% on income from $10,100 to $11,250 (single), 3.5% from $11,250 to $13,550, and 4.5% above $13,550. The top rate was reduced from 4.75% as part of the 2026 tax reform. Married filers have doubled thresholds.
The standard deduction is embedded as a 0% bracket: $10,100 for single filers and $20,200 for married filers. Income up to those amounts is taxed at 0%.
Each allowance claimed on the Oklahoma W-4 reduces annualized wages by $1,000 before applying the bracket table. An employee claiming 2 allowances would reduce their taxable annual income by $2,000.
No. Oklahoma has its own W-4 form. Employees must complete the Oklahoma W-4 to choose their filing status and allowances for state withholding purposes.