Sales Tax for Oklahoma (2026)
Oklahoma (OK) Key Facts
State Sales Tax Rate
4.5%
Has State Sales Tax
Yes
Local Taxes May Apply
Yes
Tax Type
Sales and use tax
How This Calculator Works in Oklahoma
This calculator estimates the Oklahoma sales tax on your purchase amount using the state rate of 4.5%. Enter your purchase price to see the tax amount and total cost.
Oklahoma Overview
Oklahoma's 4.5% state sales tax rate appears moderate, but combined with aggressive local taxing by cities, counties, and special districts, total rates can exceed 11% — among the highest in the nation. Oklahoma taxes groceries at the full combined rate with no exemption, and holds a back-to-school sales tax holiday in August.
How Oklahoma Compares
Oklahoma's sales tax rate of 4.5% compares to Texas at 6.25% and Kansas at 6.5%. Combined with local rates, the effective sales tax burden varies by location.
| State | Top Rate | Notes |
|---|---|---|
| Texas | 6.25% | Texas has a sales tax rate of 6.25%. |
| Kansas | 6.5% | Kansas has a sales tax rate of 6.5%. |
| Arkansas | 6.5% | Arkansas has a sales tax rate of 6.5%. |
Oklahoma's sales tax rate of 4.5% compares to a national average of approximately 5.10%. This is below the national average.
Tips for Oklahoma Residents
- 1Oklahoma's 4.5% state rate is moderate, but combined with local taxes, rates can exceed 11% in some areas — among the highest in the nation.
- 2Oklahoma taxes groceries at the full combined rate with no state-level exemption or reduction.
- 3Combined rates in Oklahoma City are about 8.625%, while Tulsa is about 8.517%.
- 4Oklahoma holds a back-to-school sales tax holiday in August for clothing under $100.
- 5Oklahoma's local taxing authority is broad — cities, counties, and special districts all levy separate taxes.