Smirking Cat Software

WTF, Illinois?

Illinois Estate Tax Modeler

Estimate Illinois estate tax from tentative taxable estate and adjusted taxable gifts. Matches the IL Attorney General calculator workflow. All calculations run in your browser.

Your assumptions

Form 706 line 3a — tentative taxable estate
Form 706 line 4 — lifetime taxable gifts
100% = all assets in Illinois (Schedule A/B line 9)

Results

Tax by estate size