Oklahoma Sales and Use Tax Guide: Rates, Nexus, Exemptions

Sales and Use Tax Basics in Oklahoma

Sales Tax

The sales tax in Oklahoma applies to all transfers of ownership or possession of tangible personal property within the state, and only certain supplies of services. 

Use Tax

When the seller does not charge and collect sales tax on goods and services, consumers must pay use tax. Typically, use tax, as a complement to the sales tax, applies to tangible personal property bought outside Oklahoma and brought into the state for storage, use, or consumption.

Oklahoma Sales and Use Tax Rates

Both sales and use taxes apply at the state and local levels, including county or municipal levels. The state-level sales and use tax rate is 4.5% of gross receipts, whereas local sales and use tax rates vary from 0.125% in Cleveland County to 5.5% in Webbers Falls. In addition to sales and use tax, a lodging tax of 4% to 8% may also apply.

Tax-Exempt Transactions

Under the Oklahoma sales tax rules, certain sales to governmental entities are exempt, including eligible purchases made by foreign diplomats, consular missions, their personnel, and qualifying family members who hold a Diplomatic Tax Exemption Card issued by the US Department of State.

Additionally, veterans who are certified by the US Department of Veterans Affairs as 100% permanently and service-connected disabled qualify for a sales and use tax exemption, subject to an annual limit of USD 25,000 in qualifying purchases.

Furthermore, sales tax does not apply to the gross proceeds from the sale of advertising space across a wide range of media, including newspapers, periodicals, event programs, billboards, signage, internet advertising, electronic displays, radio, television, and cable or satellite broadcasting, as well as the servicing of advertising devices.

Since August 2024, sales of food and food ingredients, and certain prepared foods, are exempt from the state portion of the Oklahoma sales and use tax. However, sales of prepared foods not covered by the exemption, alcoholic beverages, and dietary supplements remain subject to the full state sales tax rate of 4.5%. The exemption applies only to the state tax, so all applicable local sales and use taxes continue to be collected.

Certain sales and use tax exemptions are also provided for agricultural sectors, for the sale of tangible personal property subject to other taxes, churches, exports, county, district, and state fairs authorities, gas and electricity, food stamps, etc.

Nexus Rules in Oklahoma

Individuals and businesses making sales of the taxable goods and services may establish a so-called significant presence for sales and use tax purposes in Oklahoma in several ways. The most common or traditional way is to be physically present in the state. However, in recent years, especially after the Wayfair ruling, new nexus rules emerged as relevant for establishing nexus.

Physical Nexus

In Oklahoma, a taxable person is considered to have a physical nexus for sales tax purposes if it maintains a tangible presence in the state by owning or using offices, warehouses, distribution centers, or other places of business. 

Additionally, a physical nexus can be established by having employees, contractors, or agents operating in the state on a temporary or permanent basis. Furthermore, physical nexus may also arise from owning inventory stored with a distributor or other non-employee representative in Oklahoma to fulfill orders, or from delivering merchandise within the state.

Economic Nexus

Following the Wayfair ruling, Oklahoma introduced an economic nexus for remote sellers set at USD 100,000 in aggregate sales of tangible personal property during the current or previous calendar year. Once the threshold is exceeded, remote sellers must register for sales and use tax purposes and apply state and local tax rates to their sales to local consumers.

Marketplace Nexus

Based on the economic nexus rules, Oklahoma has enacted legislation requiring marketplace facilitators with at least USD 10,000 in taxable sales in the state, or delivered to Oklahoma locations, during the prior 12-month period, to file an election with the Oklahoma Tax Commission (OTC) to either collect and remit the applicable tax or comply with specific notice and reporting obligations.

Taxable Goods and Services in Oklahoma

Sales of goods are generally taxable in Oklahoma, except those explicitly defined as exempt. In contrast, services are typically exempt, except those strictly defined as taxable. Notable examples of taxable items and services include clothing, prewritten computer software delivered on a physical medium, most non-prescription medical equipment, and specific installation or repair services.

Bundled Transactions and the True Object Test

The Oklahoma legislation defines a bundled transaction as the retail sale of two or more distinct and identifiable products sold together for a single, non-itemized price, excluding real property and services related to real property. Consequently, the transaction is not considered bundled if the price varies or is negotiable based on the purchaser’s product selection.

Even if a sale otherwise meets the definition, it will not be treated as a bundled transaction in specific cases, such as when the true object of the transaction is a service, when one service is essential to another, when taxable items make up no more than 10% of the total price, or when certain exempt goods are sold together with taxable goods and the taxable portion does not exceed 50% of the total cost.

E-Commerce Framework

Since November 1, 2019, remote sellers exceeding the USD 100,000 threshold have been required to register, collect, and remit taxes on their sales to Oklahoma consumers. Remote sellers that do not exceed the threshold are not required to collect the tax, but must clearly notify customers on their websites, in catalogs, and on invoices that tax may be due and must be paid by the consumer unless an exemption applies.

Marketplace Rules

In practice, two situations are common. In the first one, remote sellers make sales both through the marketplace and on their own websites or online stores. The second one refers to remote sellers making sales solely through marketplaces. 

In the first case, sellers must collect and remit sales or use tax on taxable sales made through their own website and any other sales channels once they exceed the threshold. Sales made through a marketplace are excluded from this threshold calculation only if the marketplace facilitator is collecting Oklahoma tax on the seller’s behalf. Otherwise, those marketplace sales must be included, and the seller is responsible for collecting and remitting the applicable Oklahoma sales or use tax on those transactions.

Regarding the second scenario, remote sellers making taxable sales into the state exclusively through a marketplace do not need to register for or collect Oklahoma sales or use tax if the marketplace facilitator is already collecting and remitting the tax on their behalf. However, if the marketplace facilitator does not collect the tax, the seller must collect and remit Oklahoma sales or use tax once the threshold is exceeded.

Digital Goods and Services

While the sale of prewritten computer software on a tangible item is taxable, the sale of custom computer software as a program prepared to the special order of a customer is a service transaction and therefore is non-taxable. Also, SaaS, or remotely accessed software, is not subject to sales tax because no tangible copy is transferred. Furthermore, electronically delivered software and digital goods, including downloads and subscriptions, are also exempt from sales tax.

Digital Marketplace

In Oklahoma, a marketplace facilitator is defined as a person who enables the retail sale of tangible personal property by listing or advertising the property for sale and, either directly or through agreements with third parties, collecting payment from the consumer and transmitting it to the seller.

Individuals or businesses that meet this definition and exceed the USD 10,000 threshold must either elect to collect and remit the applicable state and local sales or use tax or comply with the required notice and reporting obligations.

Digital Platform Operator

Marketplace facilitators that choose not to collect and remit the sales or use tax must comply with specific notice requirements. Notably, they must post a clear notice on their platform informing buyers that sales or use tax may be due, that the consumer is responsible for filing a return if tax is owed, and that the notice is legally required.

Moreover, the facilitators provide written notice with each sale stating that tax is not being collected, that the consumer may need to remit use tax directly to the Tax Commission, and instructions on how to obtain more information. These notices must be prominently displayed on all invoices, order forms, and sales receipts, whether paper or electronic, and the facilitator may not falsely claim a transaction is exempt from sales or use tax unless it is legally exempt. 

Additionally, a marketplace facilitator must provide an annual written report to each consumer by January 31, stating that it did not collect tax and that the consumer may owe use tax, a detailed list of all products purchased or leased during the prior year with dates and prices, instructions for obtaining additional information from the Tax Commission, a notice that the facilitator is required to report the consumer’s name and total purchase amount to the Commission, and any other information reasonably required by the Commission.

Filing and Payment Requirements in Oklahoma

Depending on the monthly tax liability, filing and payment frequency may be monthly or semi-annually. Generally, taxable persons are subject to a monthly filing and payment frequency. However, if the monthly tax liability averages USD 50 or less, a semi-annual return and payment may be allowed. Taxable persons whose average monthly returns exceed USD 2,500 must participate in the electronic data interchange program.

Penalties for Non-Compliance with Sales and Use Tax Requirements

Failure to comply with sales and use tax requirements can result in both interest and penalties. Any unpaid due becomes subject to 1.25% interest per month from the due date until paid.

If the due sales and use tax is not paid within 15 days, a 10% penalty is added, unless the tax and interest are paid within 60 days of a proposed assessment or with an amended return. Negligence, such as consistently underreporting due taxes, can trigger a 25% penalty if the taxable person fails to provide required reports within 10 days of a written demand. Fraud intended to evade tax results in a 50% penalty on the total due tax plus interest.