Illinois Tax Calculators
State-specific planning tools for Illinois. Always verify filing decisions with the official state tax authority.
All Illinois Tax calculators
Illinois TaxIllinois After-State-Tax Income CalculatorEstimate income remaining after simplified Illinois state income tax. Federal, payroll and local taxes are excluded.Illinois TaxIllinois Income Tax CalculatorEstimate Illinois income tax using the 2026 4.95% rate and an optional personal exemption allowance.