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Businesses
File & Pay
Business Registration
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Tax Information
- Abusive Tax Avoidance Transactions
- Business Income Tax Estimated Payments
- Cannabis Taxes
- Certificate of Resale
- Charity Gaming Taxes
- Current Interest Rate
- Fairs, Festivals, Craft Shows
- Motor Fuel Taxes
- Obtaining a Copy of a Tax Return
- Obtaining a Receipted Copy of Vehicle Sales and Use Tax Returns
- Power of Attorney (IL-2848)
- Prepaid Sales Tax Motor Fuel Rates
- Tax-Exempt Organizations
- Tax Types
- Tax Rate Database
- Tobacco Uniformity Project
- Voluntary Disclosure Program