Free Oklahoma Tax Calculator

Oklahoma runs a four-bracket progressive income tax for 2026 — HB 2764 replaced the old nine-bracket ladder. Rates start at 0% on your first $3,750 of taxable income, then 2.5% to $4,900, 3.5% to $7,200, and 4.5% above. Oklahoma also keeps a $1,000 personal exemption for you and each dependent on top of the state standard deduction.

Here's the math on a $75,000 single-filer salary. Oklahoma starts from federal AGI and applies its own standard deduction ($7,350) plus the $1,000 exemption, leaving about $50,550 of taxable income. The brackets produce roughly $2,065 in state tax — a 2.75% effective rate, well below the 4.5% top rate.

Two Oklahoma quirks worth knowing. First, the state keeps a personal exemption on top of the standard deduction for you and each dependent, which trims taxable income a bit further. Second, Oklahoma taxes all retirement income — Social Security included for higher earners — but seniors with household income under $75,000 ($100,000 married) are fully exempt. Tulsa and Oklahoma City add no local income taxes, so the state rate is the whole story on your pay stub.

Sales tax is Oklahoma's real revenue engine: 4.5% state plus local add-ons averages 8.95% combined — top-10 in the nation. Property tax averages just 0.95%, which is one of the lowest rates in the country. So Oklahoma trades cheap property tax for pricey sales tax, a mix that favors homeowners over frequent spenders.

Filing in Oklahoma: the state return is Form 511, sent to the Oklahoma Tax Commission by April 15 alongside your federal 1040. Oklahoma offers free e-file for most residents, and withholding starts from the first dollar of wages — there are no local returns to worry about.