Oklahoma sales tax calculator
Calculate Oklahoma sales tax instantly and accurately with Xero's free calculator. Whether you're creating invoices, estimating project costs, or verifying tax amounts, get the precise figures you need in seconds – no downloads or sign-ups required.
- Calculate exact sales tax for any transaction amount
- Include both state and local tax rates automatically
- Verify tax amounts before invoicing customers
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Oklahoma sales tax rates
Local tax rates vary by jurisdiction across Oklahoma. While the state rate remains constant at 4.50%, local rates can range from 0% to 7.00%.
- State Rate: 4.50%
- Average Local Rate: 4.55%
- Maximum Local Rate: 7.00%
- Combined Average Rate: 9.05%
Important note:
The total tax rate can range anywhere from 4.50% to 11.50% depending on your specific location in the state.

How to register for sales tax in Oklahoma
Oklahoma requires businesses to register through the Oklahoma Taxpayer Access Point (OkTAP) system. Oklahoma Taxpayer Access Point (OkTAP).
Gather your information
You will need your FEIN or SSN, business structure details, and contact info.
Create an OkTAP account
Create an account on OkTAP and complete the online sales tax permit application.
Submit and pay fees
Submit any required documentation and pay applicable fees.
Oklahoma sales tax filing due dates
Filing frequency is assigned by the Oklahoma Tax Commission based on your sales volume.
- Monthly filers: Due the 20th of the following month (most businesses with significant sales).
- Quarterly filers: Due April 20, July 20, October 20, and January 20.
- Annual filers: Due January 20 of the following year.
Important note:
Operating without required registration can result in penalties. Check the official calendar for holidays.

Simplify Oklahoma sales tax with Xero
Xero helps you through your entire Oklahoma sales tax process. It automatically applies correct tax rates to every invoice and generates compliant reports for filing. Eliminate spreadsheet errors, ensure accuracy, and spend more time focusing on growing your business instead of on tax compliance.
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FAQs about Oklahoma sales tax
Common exemptions include most groceries, prescription medications, and items purchased for resale. Check with the Oklahoma Tax Commission for a complete list of exemptions.
Common exemptions include most groceries, prescription medications, and items purchased for resale. Check with the Oklahoma Tax Commission for a complete list of exemptions.
Yes, if you have nexus in Oklahoma through physical presence, economic activity exceeding $100,000 in sales, or other connections to the state.
Yes, if you have nexus in Oklahoma through physical presence, economic activity exceeding $100,000 in sales, or other connections to the state.
Filing frequency (monthly, quarterly, or annually) is assigned by the Oklahoma Tax Commission based on your sales volume and will be specified when you register.
Filing frequency (monthly, quarterly, or annually) is assigned by the Oklahoma Tax Commission based on your sales volume and will be specified when you register.
Operating without required registration can result in penalties, interest charges, and back taxes owed from when you should have registered.
Operating without required registration can result in penalties, interest charges, and back taxes owed from when you should have registered.
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Disclaimer
Xero does not provide accounting, tax, business or legal advice. This calculator has been provided for information purposes only. You should consult your own professional advisors for advice directly relating to your business.