Oklahoma Reverse Sales Tax Calculator
Oklahoma has a 4.5% state sales tax, but heavy local additions push the statewide average to 8.92% — one of the higher averages in the US. Oklahoma City comes in at 8.625%, Tulsa at 8.517%. A notable recent change: as of August 2024, Oklahoma eliminated its state sales tax on groceries entirely.
The calculator defaults to Oklahoma's 8.92% average. For Oklahoma City use 8.625%, Tulsa 8.517%, Norman 9%. For grocery receipts, the state portion is now 0% — only local taxes apply, so effective grocery rates will be much lower than general retail rates.
Current Oklahoma Sales Tax Rates
| Component | Rate |
|---|---|
| State rate | 4.50% |
| Average local rate | 4.42% |
| Average combined rate | 8.92% |
| Location | Combined Rate |
|---|---|
| Oklahoma City | 8.625% |
| Tulsa | 8.517% |
| Norman | 9.00% |
| Broken Arrow | 8.517% |
What's Taxable in Oklahoma
Oklahoma removed its state sales tax on groceries effective August 29, 2024, reducing the state portion on food to 0%. Local sales taxes may still apply to grocery purchases. Prepared food at restaurants is taxed at the full combined rate. Prescription drugs are exempt.
Worked Example
Purchase in Oklahoma City totaling $186.25 at 8.625%.
$186.25 ÷ 1.0862 = $171.46 (pre-tax price)
$186.25 − $171.46 = $14.79 (tax amount)
That's $14.79 in sales tax on a $171.46 purchase before tax. The main calculator handles this automatically — enter the total and rate and the breakdown appears instantly.
Frequently Asked Questions
Oklahoma City's combined rate is 8.625% — Oklahoma's 4.5% state rate plus Oklahoma County and city levies. Tulsa runs at 8.517%. As of August 2024, the state sales tax on groceries is 0%, though local taxes may still apply to food.
As of August 29, 2024, Oklahoma eliminated its state sales tax on groceries (reduced to 0%). This was a major change — Oklahoma previously applied the full 4.5% state rate to food. Local sales taxes may still apply to grocery purchases, but the state portion is now zero.
Divide the total amount paid by (1 + the tax rate as a decimal). For Oklahoma's 8.92% rate: divide by 1.0892. The result is the pre-tax price. Subtract that from the total to get the tax amount. The calculator on this page does this automatically.
Oklahoma holds sales tax holidays for back-to-school shopping (clothing and school supplies) in August. Check the Oklahoma Tax Commission for 2025 dates.