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IL

Illinois Estate Tax Calculator 2025 + Prior Taxable Gifts + Projection

Planning estimate using Illinois’ $4,000,000 exclusion threshold and a simplified rate assumption. :contentReference[oaicite:2]{index=2}

Inputs

Gift clarity: This field is for prior taxable gifts reported on Form 709. Those gifts can reduce what remains in the estate, but Illinois includes adjusted taxable gifts when determining whether the estate exceeds the $4,000,000 exclusion threshold. :contentReference[oaicite:3]{index=3}

Results

Combined transfer base (estate + prior taxable gifts)
$0
Taxable above IL 2025 exclusion of $4,000,000
$0
Estimated Illinois estate tax (if death in 2025)
$0
Projected estate value in future year
$0
Projected combined transfer base
$0
Estimated Illinois estate tax (projected)
$0
Effective IL tax vs. projected combined base
0.00%
Method note: Illinois’ actual calculation is complex. This tool uses a simplified planning approach applying a top-rate assumption above the $4,000,000 exclusion. Illinois rates are often cited as up to ~16%. :contentReference[oaicite:4]{index=4}

Year-by-year projection chart

Projected estate value and estimated Illinois estate tax using a simplified 2025 method.

Projected Estate Est. IL Tax

Year-by-year table

Year Projected Estate Prior Taxable Gifts Combined Transfer Base Taxable Above Exclusion Est. Illinois Tax Effective %
Disclosure: Educational estimate only. Illinois’ exclusion amount is $4,000,000 and is a taxable threshold, not a credit. Illinois includes adjusted taxable gifts when determining the taxable base. :contentReference[oaicite:5]{index=5} Actual liability may differ due to deductions, valuation, marital planning, apportionment rules, and the circular statutory computation.

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