Oklahoma Sales Tax Calculator 2025

Oklahoma's average combined sales tax rate is 8.99% in 2025 — made up of a 4.50% state rate plus an average 4.49% local rate. On a $100 purchase that works out to about $8.99 in sales tax, for a total of $108.99. Because local rates vary by city and county, your exact rate at the register may be a little higher or lower than this average. State grocery tax eliminated in 2024; local grocery taxes may apply. Use the calculator above to compute the tax on any amount, or switch to reverse mode to extract the tax from a tax-included total.

In Oklahoma, groceries are exempt from sales tax and clothing is taxed. State grocery tax eliminated in 2024; local grocery taxes may apply. Prepared food and restaurant meals are generally taxable even where unprepared groceries are exempt. Because exempt categories are taxed at $0 (or a reduced rate in some states), the combined 8.99% rate this calculator applies will overstate the tax on those specific items — apply it only to taxable goods. For the precise treatment of a particular product, consult the Oklahoma department of revenue.

To calculate sales tax, multiply the pre-tax price by the combined sales tax rate and add it to the price: Total = Price × (1 + rate). For Oklahoma at 8.99%, a $50 item costs $54.50 with $4.50 in tax. To work backward from a tax-included total — a reverse sales tax calculation — divide the total by (1 + rate): Net = Total ÷ (1 + rate). This is useful for separating the tax on a receipt for expense reports or bookkeeping. The calculator above does both: choose "Add tax to amount" for a pre-tax price, or "Extract tax from total" to recover the price and tax from a tax-inclusive amount.

Yes, in almost all cases. Since the 2018 Supreme Court decision in South Dakota v. Wayfair, Oklahoma can require out-of-state online sellers to collect sales tax once they cross an economic-nexus threshold (commonly $100,000 in sales or 200 transactions). Major retailers and marketplaces like Amazon, eBay, and Etsy now collect Oklahoma's sales tax automatically based on your shipping address. If a seller doesn't collect, you may owe use tax to your home state. For purchases shipped to Oklahoma, expect the combined rate of about 8.99% to apply at checkout.

Sales tax holidays are temporary periods — usually a weekend — when a state suspends sales tax on certain goods such as clothing, school supplies, or emergency-preparedness items, subject to per-item price caps. About 17 states hold at least one each year. Check the Oklahoma department of revenue for the current year's dates, eligible categories, and price limits before timing a large purchase, since the rules change annually and savings depend on the 8.99% rate being waived.