Oklahoma income tax calculator 2026
This calculator provides an estimated Oklahoma state income tax based on official Oklahoma Tax Commission tax tables. Because Oklahoma publishes tax tables rather than a formal marginal bracket schedule, the calculation uses a derived approximation of that structure for estimation purposes only. It is intended for Single or Married Filing Separately filers.
Estimates are shown for the 2026 tax year. In cases where official figures have not yet been finalized, calculations are based on the most recently available data and may be updated when final guidance is published.
Annual taxable income for the selected tax year.
Estimated state income tax
Shows an estimated state income tax and an effective rate based on the provided values.
Oklahoma income tax calculator 2026 – how it works
Oklahoma calculates individual income tax using published tax tables instead of an explicit marginal bracket schedule. This calculator derives an internal marginal structure from the official Oklahoma tax tables to estimate tax for Single or Married Filing Separately filers. It assumes the Oklahoma standard deduction where applicable and includes the standard personal exemption amount.
Examples
For example, with Oklahoma taxable income of $50,000, tax is estimated as $153.50 plus 4.75% of the amount over $7,200, resulting in an estimated tax of $2,186.50. With taxable income of $5,000, tax is estimated as $67.25 plus 3.75% of the amount over $4,900, or $71.00. These examples illustrate the derived structure used for estimation, not an official tax table lookup.
Limitations and important notes
This calculator provides an estimate only. Oklahoma publishes tax tables rather than a formal marginal bracket schedule, and the calculation shown here reflects a derived approximation used for estimation purposes. The calculator applies only to Single or Married Filing Separately filers and does not account for credits, nonresident or part-year rules, filing-status-specific tables, or all conditions that may affect a filed return.
FAQs about Oklahoma income tax calculator 2026
Does Oklahoma publish tax brackets?
No. Oklahoma publishes tax tables, not a formal marginal tax bracket schedule. This calculator therefore uses a derived approximation of that structure for estimation only.
What filing statuses does this calculator support?
This calculator is intended for Single or Married Filing Separately filers only and does not apply the separate tables used for other filing statuses.
Does Oklahoma allow a standard deduction?
Yes. Oklahoma allows a standard deduction that depends on filing status and whether the taxpayer claimed the federal standard deduction.
What is the Oklahoma personal exemption amount?
Oklahoma allows a personal or dependent exemption of $1,000 per exemption, with additional exemptions potentially available for eligible blind or age-65-plus taxpayers, subject to income and filing-status rules in the official instructions.
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Calculations are simplified and for guidance only. Always double-check results and current rules with official sources or a qualified professional before making financial decisions.