It depends on your business type and activity. Chicago imposes tax on certain business activity and personal property leasing. Most Chicago businesses have city-level filing obligations beyond state. We'll determine what applies during your consultation.

Illinois taxes all income at a flat 4.95% — no brackets, no standard deduction, no personal exemption. Strategies that reduce federal taxable income don't always carry over to Illinois. A Taxperts CPA or EA ensures you're maximizing every Illinois-specific deduction available.

Yes. If you're an Illinois resident, you owe Illinois income tax on your worldwide income regardless of where your employer is based. A credit may apply for taxes paid to another state, but the calculation is nuanced. We handle multi-state filings for hundreds of Chicago remote workers.

Yes. Our Tax Resolution team works directly with the Illinois Department of Revenue (IDOR) on unfiled returns, back taxes, and penalty abatement. IDOR's voluntary disclosure program can significantly reduce penalties for taxpayers who come forward proactively.