Oklahoma Payroll Taxes: 2026 Employer Guide
Quick Facts
Key payroll tax details at a glance.
State Income Tax
Progressive (up to 4.50%)
SUI New Employer Rate
1.5%
SUI Wage Base
$25,000 per employee
SUI Rate Range
0.2% to 5.8%
Employee SUI Contribution
No
Local Taxes
No
Oklahoma Payroll Landscape
Oklahoma simplified its tax code for 2026, consolidating six income tax brackets into three and reducing the top rate to 4.5%. The state has set up a pathway to potentially eliminate the income tax entirely if revenue targets are met. No local payroll taxes keep compliance straightforward.
The SUI wage base of $25,000 is moderate, and the new employer rate of 1.5% is reasonable. Oklahoma's state income tax due date is April 20 (five days after the federal deadline), which is a minor but noteworthy difference.
This guide breaks down each of Oklahoma's employer obligations: registration requirements, 2026 tax rates and wage bases, filing deadlines, and the compliance pitfalls that catch expanding startups off guard. Whether you're hiring your first Oklahoma employee or managing a growing remote team, everything you need to stay compliant is here.
Oklahoma State Income Tax
Withholding rates, brackets, and forms.
Tax Type
Progressive
Top Rate
4.50%
Withholding Form
OK-W-4
Oklahoma Unemployment Insurance (SUI)
Employer rates, wage bases, and contribution details.
New Employer Rate
1.5%
Wage Base
$25,000 per employee
Rate Range
0.2% to 5.8%
Employee Contribution
—
Oklahoma SUI (State Unemployment Insurance) is an employer-paid tax that funds unemployment benefits for workers who lose their jobs. It is administered by the Oklahoma Employment Security Commission. Registration: Employers must register with the Oklahoma Employment Security Commission as soon as they hire their first Oklahoma employee. Registration can be completed online.
Oklahoma Compliance Checklist
Deadlines, filing requirements, and official resources.
Key Deadlines
Withholding deposits
Due Varies by liability
Quarterly returns (Q1)
Due April 30
Quarterly returns (Q2)
Due July 31
Quarterly returns (Q3)
Due October 31
Quarterly returns (Q4)
Due January 31
Annual reconciliation
Due January 31
W-2 state copies
Due January 31
New hire report
Due Within 20 days of start date
How Warp Handles Oklahoma Payroll
Warp is the only AI-native HR & Payroll platform built for ambitious companies. Instead of clicking through clunky dashboards or Oklahoma's .gov websites for taxes, Warp's AI agents open your Oklahoma tax accounts, file every payroll form, and resolve every tax notice automatically.
What Warp handles for Oklahoma employers:
- Oklahoma tax account registration and setup
- Automated income tax withholding calculations and deposits
- SUI registration and quarterly filings
- Annual W-2 and reconciliation filing
- Tax notice resolution directly with Oklahoma agencies, so you never spend hours on hold
Every Warp customer gets a dedicated Account Manager and Benefits Advisor included to guide them through payroll setup, multi-state expansion, and benefits selection. You'll never visit a government website, negotiate with tax agencies, or pay an accountant $150 per quarterly filing.
If you don't want to deal with navigating Oklahoma .gov portals, check out a demo of Warp to see how we can help you stop worrying about compliance and get back to building.
Tax data last verified: March 12, 2026