Oklahoma Sales Tax Calculator
Calculate the exact sales tax for any purchase in Oklahoma. Get instant breakdowns of state, county, and city taxes. Updated with current 2026 rates.
OK Base State Rate: 4.5% (up to 11.5% combined)
Cleveland
Total Amount
$104.75
$100.00 + $4.75 tax
Tax Components
Oklahoma Sales Tax Highlights
Oklahoma has a 4.5% state sales tax
Combined rates among highest in US
Groceries fully taxed
Oklahoma Sales Tax FAQ
What is Oklahoma's sales tax rate?
Oklahoma has a 4.5% state rate with high local taxes averaging 4.47%. Combined rates can exceed 11%.
Oklahoma Sales Tax Rate Structure in 2026
Oklahoma imposes a 4.5% state sales tax on most retail transactions. Local taxes (county and city combined) add an average of 4.47%, giving Oklahoma one of the highest average combined sales tax rates in the United States. Some areas reach 11.5% combined.
| Area | State Rate | Local Rate | Combined Rate |
|---|---|---|---|
| Oklahoma City | 4.5% | 4.25% | 8.75% |
| Tulsa | 4.5% | 3.984% | 8.484% |
| Norman | 4.5% | 4.25% | 8.75% |
| Broken Arrow | 4.5% | 4.617% | 9.117% |
| Lawton | 4.5% | 4.125% | 8.625% |
Oklahoma uses origin-based sourcing for in-state sellers, meaning the seller's location determines the local rate charged. Remote and out-of-state sellers use destination-based sourcing.
Tax-Exempt Items and Special Rules in Oklahoma
Oklahoma is one of the few states that fully taxes groceries at both the state and local level. Prescription drugs are exempt from Oklahoma sales tax. Clothing is also fully taxable with no exemption.
| Category | Taxable? | Notes |
|---|---|---|
| Groceries | Yes — full rate | State + local applies to grocery purchases |
| Prepared food | Taxable | Full combined rate |
| Clothing | Taxable | No exemption |
| Prescription drugs | Exempt | Requires valid prescription |
| Over-the-counter medicine | Taxable | Full rate |
| Agricultural products | Exempt | Items used in farming/ranching |
| Motor vehicles | Taxable | Subject to excise tax at 3.25% instead of sales tax |
Oklahoma offers a sales tax holiday on the last weekend before school starts (typically late August), exempting clothing under $100 per item from sales tax.
Filing and Compliance for Oklahoma Sales Tax
The Oklahoma Tax Commission (OTC) administers all sales tax collection. Businesses must hold a sales tax permit and file returns either monthly, quarterly, or semi-annually based on their tax liability. Monthly filing is required when collections exceed $2,500 per quarter.
Oklahoma requires remote sellers to collect sales tax once they exceed $100,000 in aggregate sales to Oklahoma buyers in the current or prior calendar year. Marketplace facilitators must also collect on behalf of third-party sellers since November 1, 2019.
| Filing Detail | Requirement |
|---|---|
| Economic nexus threshold | $100,000 in annual Oklahoma sales |
| Marketplace facilitator rule | Yes — effective November 1, 2019 |
| Filing frequency | Monthly, Quarterly, or Semi-annual |
| State agency | Oklahoma Tax Commission (OTC) |
| Late filing penalty | 25% of tax due |
Related Calculators
Official References
This calculator uses current sales tax rates based on official sources:
- Oklahoma Tax Commission
Official Oklahoma tax authority
Tax rates are updated regularly but may change. Always verify current rates with local tax authorities for official transactions.