| Washington State Tax Registration |
| What Tax Identification Numbers do I need in the state of Washington? |
You need three separate Tax Identification Numbers in the state of Washington:- Employment Security (ES) Account Number
- Unified Business Identification (UBI)
- Workers' Comp Account ID
You can register for all Tax Identfication Numbers online at the state of Washington website. Contact the agency directly at 1-800-451-7985 for registration assistance or to check if a tax identification number is already assigned for your business. |
| What Tax Rates do I need in the state of Washington? |
You need to know two tax rates assigned for the current year:- State Unemployment Insurance Tax Rate
- State Employment Administration Fund Tax Rate
Your contribution rates will be assigned when you register and will be updated on an annual basis from the Employment Security Department. Contact the agency directly at 1-888-836-1900 to verify your current rate. |
| How do I update my payroll account? |
| Send any tax identification number or tax rate updates to your Account Executive or email [email protected]. |
