Illinois Bookkeeping Services
Stay compliant with IL income tax, sales tax, and local surtaxes – we've got you covered
Illinois Business Owners: Simplify Your Finances
Illinois has a flat 4.95% corporate income tax, complex sales tax (state + local + Cook County), and strict payroll requirements. Our Illinois-focused team helps Chicago and statewide businesses stay compliant while minimizing tax burden.
- IL corporate income tax (flat 4.95%)
- State sales tax (6.25% + local + Cook County)
- Cook County Home Rule taxes (Chicago, suburban)
- IL withholding tax & unemployment (IDES)
- Annual report to IL Secretary of State
IL-Specific Requirements We Handle
Corporate Income Tax
Flat 4.95% for C-corps; pass-through entities taxed at owner level. We handle IL-1120, IL-1065, IL-1041 filings.
Sales Tax (State + Local)
State base 6.25% + local (1-3.75%) + Cook County (up to 2.75%). Over 800 tax districts. We automate filing.
Cook County & Chicago
Home rule taxes, Chicago personal property lease tax, restaurant tax (11.75% total). We ensure accurate collection.
We Help IL Businesses Across Industries
Real Estate
Property management, construction
Restaurants & Bars
Liquor tax, home rule surtaxes
Logistics
Warehousing, distribution
Tech Startups
R&D credits, investor reporting
Illinois Business Pricing
Affordable plans – with IL expertise included
Business
- Up to 400 transactions
- IL sales tax filing (state + local)
- Withholding tax & IDES quarterly
- Annual report filing
Enterprise
- 400+ transactions
- Multi-entity IL reporting
- Tax strategy & IRS notice guidance
Starting prices in US dollars. Your final quote depends on transaction volume and complexity. See full pricing.
Ready to Master Your Illinois Business Finances?
Get a free consultation about your Illinois business finances.
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