Estate Tax
$4,000,000
Exemption Amount
Top Marginal Rate16%
Tax Year2026
The $4 million exclusion is a taxable threshold rather than a deduction; liability uses an interrelated calculation.
Official Source
Illinois Department of Revenue / Tax Authority
Reference data only — not legal or tax advice. Estate and inheritance tax laws change frequently. Always verify current rules with a licensed estate attorney or CPA before filing. DataTactic is not responsible for filing decisions made based on this information.