Oklahoma New Business Registration Guide

State Tax Agencies

• Oklahoma Tax Commission (OTC)

• Oklahoma Employment Security Commission (OESC)

Types of Tax

• State Withholding Income Tax

• State Unemployment Insurance (UI) Tax

Oklahoma Withholding Income Tax

Registration Steps

1. Register for an Oklahoma Withholding Tax Account ID

• Go to the Oklahoma Taxpayer Access Point (OKTap)

• Under Businesses, select Register for a Business

• Click NEW - Business Registration

• Complete the registration steps

2. Set Up Username and Password for OKTap

• Go to OKTap

• Click Register here

• Set up your user profile

• OKTap uses two-factor authentication for added security. You will receive an email or text to verify access.

Third-Party Administrator (TPA) Access

1. Sign in to your OKTap account

2. Click Allow Third Party Access

3. Create a Passphrase

4. Provide the passphrase to Check

5. Check will request access using the passphrase

6. Sign back into OKTap and grant All Access to Check

Oklahoma Unemployment Insurance Tax

Registration Steps

1. Register for an Oklahoma UI Tax Account Number

• Go to the OESC Employer Registration page

• Click Apply for Oklahoma UI Tax Account Number

• Complete the paper application and fax it to (405) 557-7271

2. Set Up Online Access

• Visit the EZ Tax Express Portal

• Click Create an employer account

• Use your Oklahoma UI Tax Account Number to complete the process

Next Steps

• Update your account with your:
• Oklahoma Withholding Account ID (WTH- format)
• Oklahoma Unemployment Insurance Account Number

These are required for all payroll-related filings and communications in Oklahoma to ensure compliance and accuracy.

Need Help?

• Oklahoma Tax Commission (Withholding): 405-521-3160

• OESC (Unemployment): 405-557-5330