| Illinois State Tax Registration |
| What Tax Identification Numbers do I need in the state of Illinois? |
You need two separate Tax Identification Numbers in the state of Illinois:- State Income Withholding Tax
- State Unemployment Insurance Tax
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| How do I get my Income Tax Identification Number? |
You can register online at the Department of Revenue (DOR) website. Contact the agency directly at 1-217-782-3336 for registration assistance or to check if a tax identification number is already assigned for your business.
Normally, you'll receive your account number instantly after registering.
Generally, the Tax ID is a 12-digit number formatted as your Federal EIN followed by -000 (XX-XXXXXXX-000). |
| How do I get my Unemployment Tax Identification Number? |
You can register online at the Illinois Taxnet website. Contact the agency directly at 1-800-247-4984 for registration assistance or to check if a tax identification number is already assigned for your business.
Normally, you'll receive your Unemployment Account Number instantly after registering.
The Tax ID is an 8-digit number formatted as XXXXXXX-X. |
| What Tax Rates do I need in the state of Illinois? |
You only need to know one tax rate assigned for the current year:- State Unemployment Contribution Rate
Your contribution rate will be assigned when you register and will be updated on an annual basis from the Illinois Department of Employment Security (IDES). Make sure to include the Fund Builder Rate in your Illinois UI Contribution Rate. Contact the agency directly at 1-800-247-4984 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]. |
